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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 10-K

☒			Annual Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

For the fiscal year ended December 31, 2021

OR

☐			Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

For the transition period from             to            

Commission file number 033-90866

WESTINGHOUSE AIR BRAKE TECHNOLOGIES CORPORATION

(Exact name of registrant as specified in its charter) 

Delaware			25-1615902
(State or other jurisdiction of incorporation or organization)			(IRS Employer Identification No.)

30 Isabella Street Pittsburgh, Pennsylvania 15212			(412) 825-1000
(Address of principal executive offices, including zip code)			(Registrant’s telephone number)

Securities registered pursuant to Section 12(b) of the Act:

Class			Trading Symbol			Name of Exchange on which registered
Common Stock, par value $.01 per share			WAB			New York Stock Exchange

Securities registered pursuant to Section 12(g) of the Act: None 

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.    Yes  ☒    No  ¨.

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or 15(d) of the Act.    Yes  ¨    No  ý.

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports) and (2) has been subject to such filing requirements for the past 90 days.    Yes  ý    No  ☐.

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files)    Yes  ý    No   ¨.

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and "emerging growth company" in Rule 12b-2 of the Exchange Act.:

Large accelerated filer

x

Accelerated filer

¨

Non-accelerated filer

¨

Emerging growth company

☐

Smaller reporting company

☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐  

Indicate by check mark whether the registrant has filed a report on and attestation to its management's assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report. ☒  

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes  ☐    No  ý.

The registrant estimates that as of June 30, 2021, the aggregate market value of the voting shares held by non-affiliates of the registrant was approximately $15.4 billion based on the closing price on the New York Stock Exchange for such stock.

As of February 11, 2022, 185,290,114 shares of Common Stock of the registrant were issued and outstanding.

DOCUMENTS INCORPORATED BY REFERENCE:

Portions of the Proxy Statement for the registrant’s Annual Meeting of Stockholders to be held on May 18, 2022 are incorporated by reference into Part III of this Form 10-K.

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TABLE OF CONTENTS

 

			PART I			Page
Item 1.			Business			3
Item 1A.			Risk Factors			16
Item 1B.			Unresolved Staff Comments			25
Item 2.			Properties			26
Item 3.			Legal Proceedings			26
Item 4.			Mine Safety Disclosures			26
			PART II
Item 5.			Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities			27
Item 6.			[Reserved]			28
Item 7.			Management’s Discussion and Analysis of Financial Condition and Results of Operations			29
Item 7A.			Quantitative and Qualitative Disclosures About Market Risk			44
Item 8.			Financial Statements and Supplementary Data			45
Item 9.			Changes in and Disagreements with Accountants on Accounting and Financial Disclosure			45
Item 9A.			Controls and Procedures			45
Item 9B.			Other Information			45
Item 9C.			Disclosure Regarding Foreign Jurisdictions that Prevent Inspections			45
			PART III
Item 10.			Directors, Executive Officers and Corporate Governance			46
Item 11.			Executive Compensation			46
Item 12.			Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters			46
Item 13.			Certain Relationships and Related Transactions, and Director Independence			46
Item 14.			Principal Accountant Fees and Services			46
			PART IV
Item 15.			Exhibits and Financial Statement Schedules			47
Item 16.			Form 10-K Summary			90

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PART I

Item  1.			BUSINESS

General

Westinghouse Air Brake Technologies Corporation, doing business as Wabtec Corporation, is a Delaware corporation with headquarters at 30 Isabella Street in Pittsburgh, Pennsylvania. Our telephone number is 412-825-1000, and our website is located at www.wabteccorp.com. Except as the context otherwise requires, all references to “we”, “our”, “us”, the “Company” and “Wabtec” refer to Westinghouse Air Brake Technologies Corporation and its consolidated subsidiaries. George Westinghouse founded the original Westinghouse Air Brake Co. in 1869 when he invented the air brake. Westinghouse Air Brake Company (“WABCO”) was formed in 1990 when it acquired certain assets and operations from American Standard, Inc., now known as Trane (“Trane”). The Company went public on the New York Stock Exchange in 1995.

Throughout the years, the Company has made a number of strategic acquisitions leading the Company to where it is today. These have primarily included:

•the 1999 merger with MotivePower Industries, Inc. whereby the Company adopted its current name of Westinghouse Air Brake Technologies Corporation, or Wabtec;

•the 2017 acquisition of Faiveley Transport, S.A. (“Faiveley Transport”), a leading provider of value-added, integrated systems and services, primarily for the global transit rail market. Based in France, the Faiveley Transport business has roots to 1919 and made Wabtec a leader in manufacturing pantographs, automatic door mechanisms, air conditioning systems, railway braking systems and couplers; and

•the 2019 acquisition of GE Transportation, a business unit of General Electric Company. This brought a global technology leader and supplier of locomotives, equipment, services and digital solutions to the rail, mining, marine, stationary power and drilling industries into Wabtec.

As a result of those strategic acquisitions, as well as other smaller acquisitions and organic growth, Wabtec is now one of the world’s largest providers of locomotives, value-added, technology-based equipment, systems and services for the global freight rail and passenger transit industries with approximately 25,000 employees, excluding contingent workers, and operations in over 50 countries. We believe we hold a leading market share for many of our core product lines globally. Our highly engineered products, which are intended to enhance safety, improve productivity, and reduce maintenance costs for customers, can be found on most locomotives, freight cars, passenger transit cars and buses around the world.

Through both internal growth as well as acquisitions, Wabtec has positioned itself with the following strategic benefits:

•Increased diversity of revenues by product, geography and market. Comprehensive product offerings spanning the freight rail and passenger transit industries, as well as products in the bus, mining and marine, and discrete industrial markets help Wabtec to balance the cyclical nature of the global rail business.

•Significant operating synergies and improved financial profile. The consummation of the GE Transportation acquisition is leading to operating synergies across all of Wabtec. As a result, we achieved over $250 million in annual run-rate operating synergies, driven by cost and revenue opportunities. This will enhance Wabtec’s margins and revenue growth opportunities with strong free cash flow generation to enable strategic deleveraging through debt reduction and earnings growth.

•Increased technical and engineering expertise. Particularly with the onboarding of Faiveley Transport and GE Transportation, Wabtec's technical capabilities and product development efforts are strengthened.

•Increased scale and diversification of Wabtec’s Freight product portfolio. Wabtec is one of the world’s largest providers of locomotives, freight car components, technology-enabled equipment, systems and services for the locomotive and freight rail industries.

•Broadened product line and international presence in the transit market. Wabtec offers a comprehensive, broad and diversified portfolio of products to the transit rail industries throughout the world.

•Complementary Digital and Electronics technologies. Wabtec has a comprehensive digital portfolio and leading engineering and technical intellectual property, which provides electronics and digital technologies to meet growing demand for train intelligence and network optimization.

•Enhanced Aftermarket and Services opportunities. Wabtec has an installed base of more than 23,000 locomotives and content on virtually all North American locomotives and freight cars, as well as a diverse offering of Transit locomotives and cars both internationally and domestically, which enables significant opportunities in the higher-margin aftermarket parts and services business and mitigates the exposure to cycles.

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Industry Overview

The Company primarily serves the global freight rail and passenger transit industries. As such, our operating results are largely dependent on the level of activity, financial condition and capital spending plans of freight railroads and passenger transit agencies around the world, and transportation equipment manufacturers who serve those markets. Many factors influence these industries, including general economic conditions; traffic volumes, as measured by freight carloadings and passenger ridership; government spending on public transportation; and investment in new technologies. In general, trends such as increasing urbanization and growth in developing markets, a focus on sustainability and environmental awareness, increasing investment in technology solutions, an aging equipment fleet, and growth in global trade are expected to drive continued investment in freight rail and passenger transit.

The Association of the European Rail Industry, UNIFE, advocates for and represents European train builders and rail suppliers. UNIFE publishes a biennial market study that provides an overview of the market in its current form and a forecast of its future development in different regions and market segments. According to the 2020 biennial edition of the study, the accessible global market for railway products and services is more than $120 billion and is expected to grow in the medium- and long-term at an average annual growth rate of 2.3% through 2025, despite an 8% COVID-induced decline in 2020. The 2020 study also concluded that the rail sector had grown 3.6% annually since 2017, supporting the appeal of rail transport for all sectors from urban metro to commercial freight. The three largest geographic markets, which represented about 85% of the total accessible market, were Europe, North America and Asia Pacific, all of which are projected to continue to grow.

In Europe, only 19% of freight traffic is rail while the majority of the rail system serves the passenger transit market, which is expected to continue growing as energy and environmental policies encourage continued investment in public mass transit, and modal shift from car to rail, although this growth may be stunted in the near-term as a result of the COVID-19 pandemic. In North America, railroads carry about 40% of intercity freight, as measured by ton-miles, which is more than any other mode of transportation. North America’s rail network is regarded as the world’s most-efficient and lowest-cost freight rail service. There are more than 600 railroads operating in North America, with the largest railroads, referred to as “Class I”, accounting for more than 90% of the industry’s revenues. Growth in the Asia Pacific market has been driven mainly by the continued urbanization of China and India, and by continued investments in freight rail rolling stock and infrastructure in Australia to serve its mining and natural resources markets. India is making significant investments in rolling stock and infrastructure to modernize its rail system

According to UNIFE, most emerging markets, including Russia-CIS (Commonwealth of Independent States) and Africa-Middle East, are expected to grow at above-average rates as global trade leads to increased freight volumes and urbanization leads to increased demand for efficient mass-transportation systems. With about 1.3 million freight cars and about 21,000 locomotives, Russia-CIS is among the largest freight rail markets in the world. The COVID-19 pandemic has impacted the expected growth in these emerging markets.

As growth occurs, Wabtec expects to have additional opportunities to provide products and services in these markets. New technologies offered by Wabtec can provide solutions to improve safety, cost and reliability of rail, as well as support the modernization of the global rail fleets. In its study, UNIFE also said it expected increased investment in digitalization, automation, and predictive maintenance through artificial intelligence, all of which would improve efficiency in the global rail industry.

Business Segments and Products

We provide our products and services through two principal business segments, the Freight Segment and the Transit Segment, both of which have different market characteristics and business drivers. The Freight Segment primarily manufactures and provides aftermarket parts and services for new locomotives; provides components for new and existing locomotives and freight cars; builds new commuter locomotives; supplies rail control and infrastructure products including electronics, positive train control equipment, signal design and engineering services; provides a comprehensive suite of software-enabled solutions designed to improve customer efficiency and productivity in the transportation and mining industries; overhauls locomotives; and provides heat exchangers and cooling systems for rail and other industrial markets. Customers include large, publicly traded railroads, leasing companies, manufacturers of original equipment such as locomotives and freight cars, and utilities. We are the largest global manufacturer of diesel-electric locomotives for freight railroads producing mission-critical products and solutions that help railroads reduce operating costs, decrease fuel use, minimize downtime and comply with emissions standards. As a result of the large base of approximately 23,000 locomotives currently in use, Wabtec's services product lines of rebuilding, remanufacturing, maintaining, and exchanging locomotives and components in the aftermarkets provides a significant, recurring revenue stream. In 2021, the Freight Segment accounted for approximately 67% of Wabtec’s total net sales, with approximately 57% of its net sales in the U.S. In 2021, approximately 68% of the Freight Segment’s net sales were in the aftermarket.

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The Transit Segment primarily manufactures and services components for new and existing passenger transit vehicles, typically regional trains, high speed trains, subway cars, light-rail vehicles and buses; supplies rail control and infrastructure products including electronics, signal design and engineering services; and refurbishes passenger transit vehicles. Customers include public transit authorities and municipalities, leasing companies, and manufacturers of passenger transit vehicles and buses around the world. In 2021, the Transit Segment accounted for approximately 33% of our total net sales, with approximately 14% of its net sales in the U.S. Approximately half of the Transit Segment’s net sales are in the aftermarket with the remainder in the original equipment market. Geographically, Faiveley Transport significantly strengthened Wabtec’s presence in the European and Asia Pacific transit markets.

Following is a summary of our leading products in both aftermarket and original equipment across both of our business segments in 2021:

Equipment:

•Diesel-electric and battery powered locomotives for freight and transit

•Engines, electric motors and premium propulsion systems used in locomotives, mining, marine, stationary power and drilling applications

•Marine and mining products

Digital & Electronic Products:

•Positive Train Control ("PTC") equipment and electronically controlled pneumatic braking products

•Railway electronics, including event recorders, monitoring equipment and end of train devices

•Signal design and engineering services

•Train performance such as distributed locomotive power, train 'cruise control', and train remote control

•Transport intelligence such as Industrial/mobile Internet of Things (IoT) hardware & software, edge-to-cloud, on and off-board analytics & rules, and asset performance management

•Transport logistics such as rail transportation management, shipper transportation management, and port visibility and optimization

•Network optimization such as rail network scheduling, dispatch and optimization, intermodal, terminal management and optimization, and rail yard management and optimization

Components:

•Freight car trucks and braking equipment and related components for Freight applications

•Draft gears, couplers and slack adjusters

•Air compressors and dryers

•Heat exchangers and cooling products for locomotives and power generation equipment

•Track and switch products

•New commuter and switcher locomotives

Services:

•Freight locomotive overhaul, modernizations and refurbishment

•Master service agreements for locomotive and car maintenance

•Transit locomotive and car overhaul

•Unit exchange of locomotive components

Transit Products:

•Railway braking equipment and related components for Transit applications, including high-speed passenger transit vehicles

•Friction products, including brake shoes, discs and pads

•Heating, ventilation and air conditioning equipment

•Doors for buses and subway cars

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•Platform screen doors

•Pantographs

•Window assemblies

•Couplers

•Accessibility lifts and ramps for buses and subway cars

•Traction motors

We have become a leader in the freight rail and passenger transit industries by capitalizing on the strength of our existing products, technological capabilities and new product innovations, and by our ability to harden products to protect them from severe conditions, including extreme temperatures and high-vibration environments. Supported by our technical staff of more than 5,700 engineers and specialists, we have extensive experience in a broad range of product lines, which enables us to provide comprehensive, systems-based solutions for our customers.

We have continued to develop Energy Management Solutions for railroads to further reduce fuel consumption and emissions. These developments include the design of a battery electric locomotive that will be integrated with other diesel electric locomotives in a train. This hybrid consist, under the control of our Trip Optimizer software, will significantly reduce fuel consumption and have the ability to operate in a low emission state while in populated areas. In 2021, Wabtec and a Class I completed a three month pilot of a battery electric locomotive which reduced fuel consumption and greenhouse gas emissions by an average of 11% in a revenue service train. In recent years, we have also introduced a number of significant new products, including PTC equipment that encompasses onboard digital data and global positioning communication protocols. We are making additional investments in this technology which we believe will provide customers with opportunities to improve safety and efficiency, in part through data analytics solutions. Other new products include HVAC inverter integrated solutions, brake discs and brake controls, platform doors and gates and door controllers.

For additional information on our business segments, see Note 19 of “Notes to Consolidated Financial Statements” included in Part IV, Item 15 of this report.

Competitive Strengths

Our key strengths include:

•Iconic legacy and strong reputation with a history of over 150 years of innovation. The rail industry has been in operation for over 150 years and we have been at the forefront of shaping and transforming the rail landscape through various innovations and technologies. Dating back to 1869 and George Westinghouse’s invention of the air brake, we are an established leader in the rail industry for freight and passenger transit vehicles. For over 110 years, GE Transportation has served the worldwide rail industry, which is a critical component of the global transportation system and the global economy, with an installed base of more than 23,000 locomotives worldwide. Faiveley Transport, founded in 1919, has a long history and is a market leader for its core products, including pantographs, automatic door mechanisms and air conditioning systems. We have leveraged our leading positions by focusing on research and engineering to expand beyond pneumatic braking components to supplying integrated parts and assemblies from a full locomotive through the end of the train. We are a recognized leader in the development and production of electronic recording, measuring and communications systems, PTC equipment, highly engineered compressors and heat exchangers for locomotives, and a leading manufacturer of freight car components, including electronic braking equipment, draft gears, trucks, brake shoes and electronic end-of-train devices. We are also a leading provider of braking equipment; heating, ventilation and air conditioning equipment; door assemblies and platform screen doors; lifts and ramps; couplers and current collection equipment, such as pantographs, for passenger transit vehicles.

•Breadth of product offering with a stable mix of original equipment market (OEM) and aftermarket business. Our product portfolio is one of the broadest in the rail industry, as we offer a wide selection of quality parts, components and assemblies across the entire train and worldwide. We provide our products in both the original equipment market and the aftermarket. Our substantial installed base of products with end-users such as the railroads and the passenger transit authorities is a significant competitive advantage for providing products and services to the aftermarket because these customers often look to purchase safety- and performance-related replacement parts from the original equipment components supplier. In addition, as OEMs and railroad operators attempt to modernize fleets with new products designed to improve and maintain safety and efficiency, these products must be designed to be interoperable with existing equipment. Sales of aftermarket parts and services have historically represented approximately 60% of our total net sales.

•Leading design and engineering capabilities. We believe a hallmark of our relationship with our customers has been our leading design and engineering practice, which has assisted in the improvement and modernization of global

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railway equipment. We believe both our customers and government authorities value our technological capabilities and commitment to innovation, as we seek not only to enhance the efficiency and profitability of our customers, but also to improve the overall safety of the railways through continuous improvement of product performance. The Company designs, develops and manufactures critical components and systems for the rail, mining and marine industries, which include proprietary propulsion systems, engine platforms and controls technology. These innovative and differentiated solutions serve as the building blocks for the rail, mining and marine industries, and help keep our global customers at the forefront of advancing technologies. When coupled with our advanced digital analytic capabilities, our solutions help drive increased energy management, performance and reliability to our products. To that end, we have assembled a wide range of patented products, which we believe provides us with a competitive advantage.

•Market leader in decarbonizing the rail industry. Today, rail represents the cleanest, most energy efficient, and safest mode of moving freight and people on land. As global demands for growth increase, current trends indicate that freight and passenger rail activity will more than double by 2050, leading to an increased demand for sustainable transportation of people and goods. These converging forces highlight the critical interplay between market dynamics, the need for decarbonization and Wabtec’s business strategy. We are advancing our sustainability priorities both through our own commitments to our people, communities, and planet, as well as by innovating next generation technologies that reduce emissions, energy consumption and waste, and increase fuel efficiency for our customers through advancements in our equipment and digital solutions. We are helping our customers reduce their overall carbon footprint through the development of low-emitting locomotives like our Tier 4 and battery-electric locomotives, Trip Optimizer, Green Air and Green Friction products, and the use of alternative fuels such as biodiesel, renewable diesel, and hydrogen.

•Driving the digital transformation of the rail industry. Our early investment in data analytics and software has allowed us to become a strategic partner for customers looking to derive new value from assets and digitally transform their operations. Through these initiatives, our digital solutions have helped to transform many distribution channels in the transportation industry including mine to ports, from shipper to receiver, from port to intermodal terminals to main line locomotives and railcars and across train yards and operation centers. The breadth of our Digital and Electronic solutions gives customers confidence in our ability to address their current and future needs.

•Strategic partnerships with longstanding customers and other key stakeholders. For more than a century, rail has been a cornerstone of the global transportation system, and thus, the economy. Rail remains one of the most cost-effective, energy-efficient modes of transport, both domestically and internationally. As the largest global producer of diesel-electric locomotives, we have a significant market share both in North America and globally. We listen to our key stakeholders and focus on areas where Wabtec can enable the most meaningful impact for our customers, communities, and the world. Transformational change requires collaboration, so we are committed to accelerating progress by partnering with customers, government leaders, corporations, universities and other key stakeholders. For example, we have partnered with a customer, a leading short line and regional freight railroad, as well as a leading artificial intelligence and robotics institution to create technologies that will decarbonize freight rail transport, improve freight safety, and generate greater rail network utilization. We also have collaborated with a global transportation company focused on the development and commercialization of battery technology and hydrogen fuel cell systems for Wabtec locomotives. By working together with these partners and others, we are developing advanced solutions for the industry to realize the zero-emission rail network of the future.

•Experience with industry regulatory requirements. The freight rail and passenger transit industries are governed by various government agencies and regulators in each country and region. These groups mandate rigorous manufacturer certification and a new product testing and approval processes that we believe are difficult for new entrants to meet cost-effectively and efficiently without the scale and extensive experience we possess. Certification processes are lengthy, and often require local presence and expertise. In addition, each transit agency places a high degree of importance on vehicle customization, which requires experience and technical expertise to meet ever-evolving specifications.

•Streamlined cost structure and operational excellence provide operating leverage and support Wabtec’s growth. Wabtec’s lean manufacturing and continuous improvement initiatives have been a part of the Company’s culture for more than 25 years and have enabled Wabtec to manage successfully through cycles in the rail supply market. We are continuing to expand our Operating Excellence focus in driving productivity and delighting customers. Our Operating Excellence Program leverages the breadth and depth of our One Wabtec expertise across the organization in sharing of best practices, instilling a culture of learning, problem solving, continuous improvement, and driving standard operating practices. This, coupled with our overall manufacturing and supply base footprint optimization initiatives, will drive increased flexibility and improved responsiveness to our customer needs while driving margin improvement through productivity.

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Business Strategy

We strive to generate sufficient cash to invest in our growth strategies and to build on what we consider to be a leading position as a low-cost producer in the industry while maintaining world-class product quality, technology and customer responsiveness. We continuously strive to improve quality, delivery and productivity, and to reduce costs utilizing global sourcing and supply chain management. These practices enable us to streamline processes, improve product reliability and customer satisfaction, reduce product cycle times and respond more rapidly to market developments. We also rely on functional experts within the Company across various disciplines to train, coach and share best practices throughout the Company, while benchmarking against best-in-class competitors and peers. Over time, we expect to continue to increase operating margins, improve cash flow and strengthen our ability to invest in the following growth strategies:

•Accelerate innovation of scalable technologies. We continue to emphasize innovation and development funding to create new products and capabilities to increase customer productivity, efficiency, capacity, utilization and safety, such as the battery electric locomotive, vehicle monitoring and data analytics. We will continue to lead the way with technologies that use less energy, reduce weight and size, and increase recyclability. We plan to invest in bringing new technologies to market for our customers. A significant portion of our investment will be focused on three customer-centric areas of innovation: zero-emissions operations, automation and digitization and advanced supply chain visibility. These investments will position our customers for success and make these technologies the standard going forward. We have a multi-year initiative to build on our existing expertise and technologies in the digital and electronics areas. In addition, we invest in developing enhancements and new features to existing products, such as brake discs and heat exchangers. We are focusing on technological advances, especially in the areas of electronics, battery power and alternative fuels, braking products and other on-board equipment, as a means to deliver new product growth. We seek to provide customers with incremental technological advances that offer immediate benefits with cost-effective investments.

•Grow and refresh expansive installed base. We are a leading transportation and component manufacturer with a significant installed base with expansive product and service capabilities. We have over 23,000 locomotives in service, the majority of which are equipped with Digital technologies, like Positive Train Control. We have components on rail cars in over 100 countries and over 45,000 railway vehicles equipped with Wabtec braking systems. We intend to increase sales through direct sales of existing products to current and new customers, by developing specific new products for application in new geographic markets, by making strategic acquisitions and through joint ventures with railway suppliers which have a strong presence in their local markets. We believe that international markets represent a significant opportunity for future growth. In Transit, we are focused on mature markets such as Europe and emerging markets such as India. In Freight, we are targeting markets that operate significant fleets of U.S.-style locomotives and freight cars, including Australia, Brazil, China, Egypt, India, Russia, South Africa and other select areas within Europe and South America. In addition, we have opportunities to increase the sale of certain products that we currently manufacture for the rail industry into other industrial markets, such as mining, off-highway and energy.

•Lead the decarbonization of rail. We have taken significant steps to decarbonize global transport and make our world safer, smarter and greener. Today, rail represents the cleanest, most energy efficient and safest mode of moving freight and people on land. As global demands for growth increase, current trends indicate that freight and passenger rail activity will more than double by 2050, leading to an increased demand for sustainable transportation of people and goods. These converging forces highlight the critical interplay between market dynamics, the need for decarbonization and Wabtec’s business strategy. Wabtec is leading the transition to a more utilized, efficient, and low-carbon rail network. Alternative clean energy technologies are critical in the fight against climate change and reducing greenhouse gas emissions. We are helping our customers reduce their overall carbon footprint through the development of low-emitting locomotives like our Tier 4 and battery-electric locomotives, Trip Optimizer, Green Air and Green Friction products, and the use of alternative fuels such as biodiesel, renewable diesel, and hydrogen.

•Expand high-margin recurring revenue streams. Our expansive installed base allows us to generate strong recurring revenues with replacement parts and components, digital solutions, overhauls and modernizations. Aftermarket sales are typically done at higher margins and are less cyclical than OEM sales because a certain level of aftermarket maintenance and service work must be performed, even during an industry slowdown. Sales of aftermarket parts and services have historically represented approximately 60% of total net sales. As a long time supplier of original equipment, we have an extensive installed base of equipment in the field and growing this installed base further will expand our recurring aftermarket sales. Wabtec provides aftermarket parts and services for its components, and we seek to expand this business with customers who currently perform the work in-house. In this way, we expect to benefit as transit authorities and railroads outsource certain maintenance and overhaul functions.

•Drive continuous operational improvement. We are focused on continuous improvement to drive cost competitiveness, effectively deploy capital and accelerate Lean. Lean is a set of principles that emphasize customer focus, elimination of waste, high quality growth and ruthless prioritization of work to improve safety, quality, delivery

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and cost. Lean is being embedded in our culture and is fundamental to how we execute our strategy. We are using Lean principles to help examine processes and continuously improve them by solving problems at their root cause. Our Lean transformation model focuses on driving process improvements and management systems to maximize the flow of value produced for the customer, remove waste, empower employees and optimize the enterprise. These principles are also rigorously applied to sustainability and safety.

Recent Acquisitions and Joint Ventures

See Note 3 of the Notes to Consolidated Financial Statements included in Part IV, Item 5 of this report for additional information about our recent acquisitions and joint ventures.

Backlog

The Company’s backlog was approximately $22 billion at December 31, 2021. For 2021, approximately 60% of total net sales came from aftermarket orders, which typically carry lead times of less than 30 days and are not included in backlog for a significant period of time.

The Company’s contracts are subject to standard industry cancellation provisions, including cancellations on short notice or upon completion of designated stages. Generally, if a customer were to cancel a contract we would have an enforceable right to payment for work completed up to the date of cancellation which would include a reasonable profit margin. Substantial scope-of-work adjustments are common. For these and other reasons, completion of the Company’s backlog may be delayed or canceled. The railroad industry, in general, has historically been subject to fluctuations due to overall economic conditions and the level of use of alternative modes of transportation.

The rollforward of the Company's backlog of firm customer orders and the expected year of completion are as follows:

In millions						Freight Segment						Transit Segment						Consolidated
Balance at December 31, 2020						$	17,887					$	3,704					$	21,591
New orders						5,964						2,763						8,727
Less: Net sales						(5,239)						(2,583)						(7,822)
Adjustments / foreign exchange						(110)						(217)						(327)
Balance at December 31, 2021						$	18,502					$	3,667					$	22,169
Expected Delivery
2022						$	4,520					$	1,748					$	6,268
Other years						$	13,982					$	1,919					$	15,901

The Company saw no significant cancellations of backlog during the year ended December 31, 2021 despite the unprecedented pandemic caused by COVID-19 and its effects on locomotive parkings, carbuilds, and transit ridership levels. However, the economic slowdown and disruptions that were caused by COVID-19 did impact the timing of some orders in backlog as in certain cases the delivery of goods and services previously expected to be completed in the current year has been pushed out to future years.

Engineering and Development

To execute our strategy to develop new products, we invest in a variety of engineering and development activities. For the fiscal years ended December 31, 2021, 2020 and 2019, we invested $176 million, $162 million and $210 million, respectively, on product development and improvement activities. Significant incremental engineering expense is incurred with the execution of original equipment customer contracts. Across the corporation we have established multiple Centers of Competence, which have specialized, technical expertise in various disciplines and product areas.

Our engineering and development program includes investments in data analytics, train control and other new technologies, with an emphasis on developing products that enhance safety, productivity and efficiency for our customers. For example, we have developed advanced cooling systems that enable lower emissions from diesel engines used in rail and other industrial markets.  Sometimes we conduct specific research projects in conjunction with universities, customers and other industry suppliers.

We use our Product Development System to develop and monitor new product programs. The system requires the product development team to follow consistent steps throughout the development process, from concept to launch, to ensure the product will meet customer expectations and internal profitability targets.

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Intellectual Property

We have approximately 6,000 active patents worldwide and on average file for approximately 300 new patents each year. We also rely on a combination of trade secrets and other intellectual property laws, nondisclosure agreements and other protective measures to establish and protect our proprietary rights in our intellectual property. We also follow the product development practices of our competitors to monitor any possible patent infringement by them, and to evaluate their strategies and plans.

Certain trademarks, among them the name WABCO®, were acquired or licensed from American Standard Inc., now known as Trane, in 1990 at the time of our acquisition of the North American operations of the Railway Products Group of Trane. Other trademarks have been developed through the normal course of business or acquired as a part of our ongoing merger and acquisition program.

We have entered into a variety of license agreements as licensor and licensee. We do not believe that any single license agreement is of material importance to our business or either of our business segments as a whole.

Customers

We provide products and services for more than 500 customers worldwide. Our customers include passenger transit authorities and railroads throughout North America, Europe, Asia Pacific, Africa and South America; manufacturers of transportation equipment, such as locomotives, freight cars, passenger transit vehicles and buses; and companies that own, lease, and maintain such equipment.

Top customers can change from year to year. For the fiscal year ended December 31, 2021, our top five customers accounted for approximately 28% of net sales. No one customer represents 10% or more of consolidated net sales. We believe that we have strong relationships with all of our key customers.

Competition

We hold a leading market share for many of our core product lines globally, although market shares vary by product lines and geographies. We operate in a highly competitive marketplace. Price competition is strong because we have a relatively small number of customers and they are very cost-conscious. In addition to price, competition is based on product performance and technological leadership, quality, reliability of delivery, and customer service and support.

Our principal competitors vary across product lines and geographies. Within North America, New York Air Brake Company, a subsidiary of the German air brake producer Knorr-Bremse AG (“Knorr”) and Amsted Rail Company, Inc., a subsidiary of Amsted Industries Corporation, are our principal overall OEM competitors. Our competition for locomotive, freight and passenger transit service and repair is mostly from the railroads’ and passenger transit authorities’ in-house operations, Electro-Motive Diesel, a division of Caterpillar, and Knorr. We believe our key strengths, which include leading market positions in core products, including sustainable technologies, breadth of product offering with a stable mix of OEM and aftermarket business, leading design and engineering capabilities, significant barriers to entry, strategic partnerships and operational excellence, coupled with an experienced management team, enable us to compete effectively in this marketplace. Outside of North America, Knorr is our main competitor, although not in every product line or geography. In addition, our competitors often include smaller, local suppliers in most international markets. Depending on the product line and geography, we can also compete with our customers, such as CRRC Corporation Limited, a China-based manufacturer of rolling stock.

Sustainability

Wabtec is committed to sustainable value creation. Our sustainability strategy is to contribute to a better, more sustainable world through our unique business offerings, leading technologies and sustainable business practices. Our strategy helps us capitalize on market opportunities and reduce safety and environmental risks, while creating value for our customers, employees and other stakeholders. Wabtec utilizes three Strategic Sustainability Principles to execute our sustainability strategy:

•Innovating with Purpose. We are committed to developing responsible and sustainable products that minimize the impact on the planet.

•Driving Responsible Operations. We are committed to providing safe work environments and products that enable productive and efficient use of resources.

•Empowering People and Communities. We are committed to driving an inclusive culture grounded in integrity, committed to the development of and investment in the communities where our teams live and work.

As we develop and refine our sustainability strategy, it is important that we listen to our key stakeholders and focus on areas where Wabtec can enable the most meaningful impact for our customers, communities and the world. In 2021, we conducted a comprehensive Environmental, Social and Governance (ESG) assessment that included internal and external

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stakeholder involvement, to identify key ESG issues of focus for the Company. Based on the assessment, the following topics had the highest relative priority to Wabtec and its external stakeholders and are aligned to our overall sustainability strategy and action plans:

Topic			Definition			Alignment to Wabtec Strategic Sustainability Principles
Greenhouse gas (GHG) emissions			Reducing GHG emissions across Wabtec’s value chain and helping Wabtec partners across their value chain reduce GHG emissions. This includes reducing major sources of indirect emissions during the procurement and processing of raw materials, during manufacturing and the operation of our facilities, and during product distribution and end use.			• Innovating with Purpose • Driving Responsible Operations
Energy & renewables			Supporting policies and organizational partners that contribute to the renewable energy transition. Contributing to the success of the energy transition by improving the energy efficiency of Wabtec’s products and operations. Integrating renewables into Wabtec’s products and operations and enabling the adoption of new and emerging renewable energy solutions.			• Innovating with Purpose • Driving Responsible Operations
Innovation & technology			Capitalizing on opportunities related to new product advancements and innovations that include the adoption of emerging technology to help address key societal and transportation sector challenges. Developing a resilient business model capable of meeting societal expectations for continuous improvement.			• Innovating with Purpose • Empowering People and Communities
Business Ethics & Compliance			Upholding ethics and integrity in every aspect of Wabtec’s business by ensuring transparency in all financial practices. Complying with all applicable national and local laws and regulations by promoting practices and policies that encourage reporting instances of non-compliance and by implementing corrective actions that prevent recurrence. Preventing bribery, corruption, and anti-competitive behavior. Promoting ethics and compliance throughout Wabtec’s value chain, especially among suppliers.			• Driving Responsible Operations • Empowering People and Communities
Data privacy & cybersecurity			Investing in cybersecurity measures and adapting to business risks presented by technology and digitization. Protecting Wabtec’s proprietary information and intellectual property. Ensuring the responsible management and use of data, including data from customers, employees, and suppliers. Protecting data collected by Wabtec products.			• Innovating with Purpose

During 2021, Wabtec adopted its Green Finance Framework. Following the release of the Green Financing Framework, the Company issued its inaugural "green bond" – a €500 million issuance in the European bond market. The Company intends to utilize green financing instruments as part of its overall capital resources strategy to support the transition to a low-carbon transportation future and meet the sustainable transportation needs of growing cities around the world. Projects supported by green financing will largely target the objective of climate change mitigation by focusing on the efficiency of freight rail systems and public transport, as well as on the provision of energy-efficient customer solution services. Focus areas include:

•     Clean transportation

•     Eco-efficient and/or circular economy adapted products, production technologies and processes

•     Renewable energy

•     Pollution prevention and control

•     Energy efficiency

Cybersecurity Framework

Cybersecurity and data protection are important considerations in the design and production of Wabtec products, projects, and services. Information technology is used and relied upon extensively by our business. We collect, process, and retain sensitive and confidential customer information, including proprietary business information, personal data and other information, some of which may be subject to privacy and security laws, regulations and/or customer-imposed data protection controls. To address risks related to cybersecurity and privacy, Wabtec seeks to leverage industry cybersecurity practices that have been developed by organizations such as National Institute of Standards and Technology (NIST) and the International Standardization Organization (ISO) and also engages external independent advisors. Wabtec’s Data Protection Plan describes the technical, physical and administrative controls used to protect the confidentiality, integrity, and availability of information provided to and managed by Wabtec. Cybersecurity is addressed and discussed regularly with our Chief Information Officer, the Audit Committee and Board of Directors. Wabtec also maintains SOC 1 Type 2 certification for select digital products, as well as cyber liability insurance coverage. We also regularly evaluate our response readiness, including disaster recovery plans and business continuity considerations in the case of a cyber incident. Finally, Wabtec engages in regular security awareness training to highlight and educate its employees on how to identify and mitigate cybersecurity risks at the individual level.

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ESG Goals

Wabtec is committed to transparency on ESG topics, including the opportunities and challenges we encounter as we work to enhance performance and conduct business in a responsible manner. In 2020, we established ESG goals around innovation, operations, safety, and people. We report our progress on these goals annually in our published Sustainability Report, which can be found on our website at www.wabteccorp.com/sustainability. The content referred to on any website referred to in this annual report, including the Sustainability Report, is not incorporated by reference into this Form 10-K.

Wabtec developed an ESG governance framework to provide oversight for our climate action strategy. This structure starts with Wabtec's Board of Directors and its committees who oversee the execution of the Company’s ESG strategy as part of their oversight of Wabtec’s overall business. In particular, the Nominating and Corporate Governance Committee assists the Board in its oversight of Wabtec’s sustainability strategy and execution against key goals, as well as the review of climate-related risks and opportunities. To further facilitate the Board’s engagement and oversight, climate was added as a risk category in Wabtec’s enterprise risk management process.

Employees

Human Capital

At Wabtec, we believe performance drives progress, and are committed to developing sustainable transportation solutions that move and improve the world. We are committed to driving an inclusive culture and integrating our talent and capabilities across the enterprise. As a company, we believe that protecting the health and safety of our people and the environment is the responsibility of everyone at Wabtec, especially during a global pandemic.

Our headquarters are in Pittsburgh, Pennsylvania and we have offices and facilities in over 50 countries around the globe. As of December 31, 2021, we have a global workforce of approximately 25,000 employees, excluding contingent workers.

Diversity and Inclusion

Wabtec is committed to ensuring a diverse and inclusive workplace that respects and seeks the unique talents, experiences and viewpoints of all our employees. Wabtec has a Diversity and Inclusion Council, led by members of Wabtec’s executive leadership team, who oversee global diversity and inclusion policies and initiatives. We strive to create an inclusive workplace where employees can be themselves. Our Board of Directors also plays a critical role in creating an organization that prioritizes, supports, and invests in diversity, inclusion, and equity. Over the last two years, Wabtec has named three diverse

members to its Board. Currently, 40% of Wabtec’s Board is diverse (gender; race/ethnicity), and over 18% of Wabtec’s global senior management are female and roughly 18% are people of color based in the U.S. In 2020, women constituted approximately 16% of our global workforce and approximately 18% of our salaried employees and people of color constituted approximately 20% of our U.S. salaried workforce and approximately 24% of the total U.S. workforce.

Training and Development

We continually invest in our employees’ career growth and provide employees with a wide range of development opportunities, including face-to-face, virtual, social and self-directed learning, mentoring and coaching programs. We have invested in training courses through Wabtec’s Learning Management System (LMS). In 2021, Wabtec partnered with a third-party to provide diversity and inclusion training. Over 4,000 employees participated in the training, which was coupled with tools and resources for people leaders to help make diversity and inclusion part of a long-term conversation rather than a one-time training.

Our two-year Leadership, Expertise, Advancement and Development (LEAD) program is the primary path for university graduates into Wabtec. LEAD is a two-year program that offers an immersive learning experience in the fields of engineering, operations, finance and IT along with extensive leadership training designed to build the next generation of leaders. On average, there are 100 participants in the LEAD program that rotate between business units every six months to work on strategic projects and assignments, gain exposure to senior leadership and build their global professional network. We are focused on strengthening this program to support our global talent pipeline.

Health and Safety

When it comes to employee safety, our commitment is to provide safe work environments for our employees and to meet or exceed environmental, health, and safety (EHS) laws and regulations in the places where we operate. In 2020, the Company relaunched the Environment, Health, and Safety component of the Wabtec Management System (known as the “EHS WMS”) to strengthen our management system approach to addressing EHS risks and promote the consistent implementation of best practices across all our global manufacturing and services sites, regardless of how local laws are implemented or enforced. The EHS WMS establishes standard expectations in 13 core competency areas, including leadership and accountability, regulatory applicability review, EHS processes and systems, risk assessment, safety defenses, exposure defenses, environmental defenses

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and contractor management. Operational sites are measured against these EHS program expectations. In addition, the Company’s EHS WMS is directly aligned to accepted international standards, such as ISO 14001 for Environmental and ISO 45001 for Occupational Health and Safety. With zero fatalities and over 80 operational sites with zero recordable injuries, 2020 marked the 13th consecutive year of injury rate reductions across Wabtec's vast operations.

In 2021, Wabtec continued its commitment to safety and launched a four week EHS leadership training course aimed at building the toolkits of front-line supervisors and plant managers. The course was designed to establish a common understanding of Wabtec’s EHS tools and terminology, initiate a partnership between the plant manager and their EHS leader on a personal action plan, connect plant managers to the broader network of global leaders, and encourage decision making at the site level that is informed by an understanding of EHS impacts and of legal and compliance responsibilities. In 2021, over 120 leaders from 26 countries attended the training.

COVID-19

The pandemic has reinforced the importance of keeping Wabtec employees safe and healthy while keeping essential rail services and the global economy moving. When the pandemic began, Wabtec launched its COVID-19 Crisis Management Team, which met daily to focus on three key elements: protecting our people, serving our customers, and ensuring business continuity. Manufacturing and office locations were required to implement risk assessment methodologies and rethink work practices to allow for remote working or social distancing, develop new procedures for workplace entry, strengthen site-level crisis management teams and implement new tools for rapid communication with site employees. Site leaders and people managers were trained on techniques for communicating transparently and navigating complex business decisions during a crisis.

Compensation and Benefits

We remain committed to a strong pay-for performance philosophy that aligns individual performance, behaviors and business results with individual rewards. To deliver on that commitment, we utilize market data to benchmark to the external market, and consider factors such as an employee’s role and experience, the location of the job and performance when determining compensation.

We provide our employees resources to help them succeed. We offer a wide range of benefits including healthcare and wellness benefits, retirement benefits, an Employee Assistance Program, Employee Resource Groups to build diverse communities at Wabtec, and paid time off.

Regulation

In the course of our operations, we are subject to various regulations and standards of governments and other agencies in the U.S. and around the world. These entities typically govern equipment, safety and interoperability standards for freight rail rolling stock and passenger transit, oversee a wide variety of rules and regulations governing safety and design of equipment, and evaluate certification and qualification requirements for suppliers.  New products generally must undergo testing and approval processes that are rigorous and lengthy. As a result of these regulations and requirements, we must usually obtain and maintain certifications in a variety of jurisdictions and countries.  The governing bodies include the FRA and the Association of American Railroads ("AAR") in the U.S., and the International Union of Railways (“UIC”) and the European Railway Agencies in Europe. Also, in Europe, the European Committees for Standardization continually draft new European standards which cover, for example, the Reliability, Availability, Maintainability and Safety of railways systems. To guarantee interoperability in Europe, the European Union for Railway Agencies is responsible for defining and implementing Technical Standards of Interoperability, which covers areas such as infrastructure, energy, rolling stock, telematic applications, traffic operation and management subsystems, noise pollution and waste generation, protection against fire and smoke, and system safety.

Most countries and regions in which Wabtec does business have similar rule-making bodies. For example, in Russia, a GOST-R certificate of conformity is mandatory for all products related to the safety of individuals in Russian territory. In China, any product or system sold on the Chinese market must have been certified in accordance with national standards. In the local Indian market, most products are covered by regulations patterned after AAR and UIC standards.

Effects of Seasonality

Our business has limited seasonality. Third quarter results may be affected by the timing of services performed under our locomotive maintenance contracts and vacation and scheduled plant shutdowns at several of our major customers. Fourth quarter results may be affected by the timing of spare parts and service orders placed by transit agencies worldwide. Quarterly results can also be affected by the timing of projects in backlog and by project delays.

Environmental Matters

The Company is subject to a variety of environmental laws and regulations governing discharges to air and water, the handling, storage and disposal of hazardous or solid waste materials and the remediation of contamination associated with

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releases of hazardous substances. The Company believes its operations currently comply in all material respects with all of the various environmental laws and regulations applicable to our business; however, there can be no assurance that environmental requirements will not change in the future or that we will not incur significant costs to comply with such requirements.

Available Information

We maintain a website at www.wabteccorp.com. Our annual reports on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K and amendments to such reports filed or furnished pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as well as the annual report to stockholders and other information, are available free of charge on this site. The Internet site and the information contained therein or connected thereto are not incorporated by reference into this Form 10-K. The following are also available free of charge on this site and are available in print to any shareholder who requests them: Our Corporate Governance Guidelines, the charters of our Audit, Compensation and Nominating and Corporate Governance Committees, our Code of Conduct, which is applicable to all employees, our Code of Ethics for Senior Officers, which is applicable to our executive officers, our Policies on Related Party Transactions and Conflict Minerals, and our Sustainability Report.

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INFORMATION ABOUT OUR EXECUTIVE OFFICERS

The following table provides information on our executive officers as of February 17, 2022.

Officers

Age

Position

Rafael Santana

50

President and Chief Executive Officer

David L. DeNinno

66

Executive Vice President, General Counsel and Secretary

John A. Olin

61

Executive Vice President and Chief Financial Officer

Nicole Theophilus

51

Executive Vice President and Chief Human Resources Officer

Eric Gebhardt

53

Executive Vice President and Chief Technology Officer

Gina Trombley

51

Executive Vice President, Sales & Marketing & Chief Commercial Officer - Americas

Greg Sbrocco

53

Executive Vice President, Global Operations

Michael E. Fetsko

57

President, Freight and Industrial Components

Pascal Schweitzer

45

President, Freight Services

Rogerio Mendonca

49

President, Freight Equipment

Nalin Jain

52

President, Digital Electronics

Lillian Leroux

50

President, Transit

John A. Mastalerz

55

Senior Vice President of Finance and Chief Accounting Officer

Rafael Santana was named President and Chief Executive Officer of the Company effective July 1, 2019. Previously, he served as Executive Vice President from February 2019 to July 2019. Mr. Santana was President and Chief Executive Officer of GE Transportation since November 2017. Mr. Santana has held several global leadership positions since joining GE in 2000, including roles in the Transportation, Power and Oil and Gas businesses. Prior to being named President and Chief Executive Officer of GE Transportation, Mr. Santana was President and Chief Executive Officer of GE in Latin America. He also served as President and Chief Executive Officer of GE Oil and Gas Turbomachinery Solutions and had roles as Chief Executive Officer for GE Gas Engines and Chief Executive Officer for GE Energy in Latin America.

David L. DeNinno was named Executive Vice President, General Counsel and Secretary of the Company effective December 2016. Previously, Mr. DeNinno served as Senior Vice President, General Counsel and Secretary since February 2012. Previously, Mr. DeNinno served as a partner at K&L Gates LLP since May 2011 and prior to that with Reed Smith LLP.

John A. Olin was named Executive Vice President and Chief Financial Officer effective October 1, 2021. Prior to joining Wabtec, Mr. Olin served as the Senior Vice President and Chief Financial Officer of Harley-Davidson, where he was instrumental in driving strategic change amidst significant market disruption, including reshaping the company. Prior to Harley-Davidson, Mr. Olin served as Controller of Kraft Foods' Cheese Division, and had 12 years of financial leadership at Kraft, Oscar Mayer Foods, and Miller Brewing Company. Mr. Olin also held positions with financial services and specialized consulting firms including Ernst and Whinney (now Ernst and Young).

Nicole Theophilus was named Executive Vice President & Chief Human Resource Officer in October 2020. Prior to joining Wabtec, Ms. Theophilus served most recently as Chief Human Resource Officer of West Corporation from March 2016 through February 201. Previously she served as Executive Vice President and Chief Human Resource Officer, Vice President of Human Resources and Vice President and Chief Employment Counsel of ConAgra Corporation, where she was employed from 2006 through 2015. Prior to 2006, Ms. Theophilus was a partner with the law firm Husch Blackwell.

Eric Gebhardt was named Executive Vice President and Chief Technology Officer in October 2020. Prior to joining Wabtec, Mr. Gebhardt served as Managing Director of KCK-US from May 2019 through September 2020. He also served in a variety of roles with General Electric including Chief Technology Officer of GE Power from August 2017 through January 2019, Chief Product Management Officer for GE Energy Connections from February 2017 through August 2017, Chief Platforms and Operations Officer for Current from January 2016 through January 2017, and Chief Technology Officer for GE Oil & Gas from October 2012 through December 2015.

Gina Trombley was named Executive Vice President, Sales & Marketing & Chief Commercial Officer - Americas, effective September 8, 2020. Prior to joining Wabtec, Ms. Trombley served in various executive roles at Bombardier Transportation from 2017 to 2019, most recently as Vice President of Services and previously as Vice President Sales for Bombardier Transport - Americas. Ms. Trombley also held progressive commercial and marketing leadership roles at Parsons and GE Transportation.

Greg Sbrocco was named Executive Vice President, Global Operations in February 2019. Prior to this, Mr. Sbrocco was Global Supply Chain Leader for GE Transportation since September 2014. Mr. Sbrocco had been with GE since 1992 when he

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joined as an Environmental Engineer for the GE Energy business. During his tenure with GE, Mr. Sbrocco held several leadership roles in GE Energy, GE Oil and Gas, and GE Transportation.

Michael E. Fetsko was named President, Freight and Industrial Components effective January 2017. Previously, Mr. Fetsko served as Vice President and Group Executive from January 2014. He joined Wabtec in July of 2011 as Vice President, Freight Pneumatics. Prior to joining Wabtec, Mr. Fetsko served in various executive management roles with Bombardier Transportation. Prior to Bombardier, Mr. Fetsko served in various management roles with two different environmental engineering firms.

Pascal Schweitzer was named President, Freight Services in February 2019. Previously Mr. Schweitzer was the Vice President—Services of GE Transportation since April 2017. He served as General Manger – Europe – Power Services for GE Power from November 2015 through April 2017 and prior to that several positions with Alstom Power.

Rogerio Mendonca was named President, Freight Equipment in February 2021. Previously Mr. Mendonca served as Vice President for Baker Hughes from July 2017. Prior to that he served as President of GE Transportation in Latin America from April 2016 through July 2017 and in several roles leading up to that including Commercial Director and Service Operations General Manager.

Nalin Jain was named President, Digital Electronics business effective December 2020. Mr. Jain had served as President, Global Equipment since May 2019 and previously as President & CEO, International Markets since Aug 2017 for GE Transportation. Prior to that, Mr. Jain had multiple leadership roles of increasing responsibility with GE Aviation and GE Transportation, since September 2005. Mr. Jain served as Director Global Partnerships with Bombardier Inc since July 2002 and prior to that he worked for Saint Gobain.

Lilian Leroux was named President, Transit effective March 2019. Previously he served as Group President—Brakes & Safety from January 2017 to October 2019. Prior to that, Mr. Leroux held various executive management roles with Faiveley Transport, starting in January 2001.

John A. Mastalerz was named Senior Vice President of Finance and Chief Accounting Officer in February 2020. Previously, Mr. Mastalerz served as Senior Vice President, Corporate Controller and Principal Accounting Officer from July 2017 to February 2020 and as Vice President and Corporate Controller from January 2014 to July 2017. Prior to joining Wabtec, Mr. Mastalerz served in various executive management roles with the H.J. Heinz Company from January 2001 to December 2013, most recently as Corporate Controller and Principal Accounting Officer. Prior to 2001, Mr. Mastalerz was a Senior Manager with PricewaterhouseCoopers LLP.

Item 1A.			RISK FACTORS

RISKS RELATED TO OUR BUSINESS AND OPERATIONS

We are dependent upon key customers.

We rely on several key customers who represent a significant portion of our business. While we believe our relationships with our customers are generally good, our top customers could choose to reduce or terminate their relationships with Wabtec. In addition, many of our customers place orders for products on an as-needed basis and operate in cyclical industries. As a result, customer order levels have varied from period to period in the past and may vary significantly in the future. Such customer orders are dependent upon their markets and customers and may be subject to delays and cancellations. Furthermore, the average service life of certain products in our end markets has increased in recent years due to innovations in technologies and manufacturing processes, which has also allowed end users to replace parts less often. As a result of our dependence on our key customers, we could experience a material adverse effect on our business, results of operations and financial condition if we lost any one or more of our key customers or if there is a reduction in their demand for our products.

Our business operates in a highly competitive industry.

We operate in a global, competitive marketplace and face substantial competition from a limited number of established competitors, some of which may have greater financial resources than we do, may have a more extensive low-cost sourcing strategy and presence in low-cost regions than we do or may receive significant governmental support. Price competition is strong and, coupled with the existence of a number of cost conscious customers with significant negotiating power, has historically limited our ability to increase prices. In addition to price, competition is based on product performance and technological leadership, quality, reliability of delivery and customer service and support. If our competitors invest heavily in innovation and develop products that are more efficient or effective than our products, we may not be able to compete effectively. There can be no assurance that competition in one or more of our markets will not adversely affect us and our results of operations.

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A failure to predict and react to customer demand could adversely affect our business.

If we are unable to accurately forecast demand for our existing products or to react appropriately to changes in demand, we may experience delayed product shipments and customer dissatisfaction. If demand increases significantly from current levels, both we and our suppliers may have difficulty meeting such demand, particularly if such demand increases occur rapidly. Alternatively, we may carry excess inventory if demand for our products decreases below projected levels.

Additionally, we have dedicated significant resources to the development, manufacturing and marketing of new products. Decisions to develop and market new transportation products are typically made without firm indications of customer acceptance. Moreover, by their nature, new products may require alteration of existing business methods or threaten to displace existing equipment in which our customers may have a substantial capital investment. There can be no assurance that any new products that we develop will gain widespread acceptance in the marketplace or that such products will be able to compete successfully with other new products or services that may be introduced by competitors. Furthermore, we may incur additional warranty or other costs as new products are tested and used by customers.

Failure to accurately predict and react to customer demand could have a material adverse effect on our business, results of operations and financial condition.

We may fail to respond adequately or in a timely manner to innovative changes in new technology.

In recent years, the global transportation landscape has been characterized by rapid changes in technology, leading to innovative transportation and logistics concepts that could change the way the railway industry does business. There may be additional innovations impacting the railway industry that we cannot yet foresee. Any failure by us to quickly adapt to and adopt new innovations in products and processes desired by our customers may result in a significant loss of demand for our product and service offerings. In addition, advances in technology may require us to increase investments in order to remain competitive, and our customers may not be willing to accept higher prices to cover the cost of these investments.

Our revenues are subject to cyclical variations in the railway and passenger transit markets and changes in government spending.

The railway industry historically has been subject to significant fluctuations due to overall economic conditions, the use of alternate methods of transportation and the levels of government spending on railway projects. In economic downturns, railroads have deferred, and may defer, certain expenditures in order to conserve cash in the short term. For example, the economic slowdown that was caused by COVID-19 impacted the timing of some orders, as customers deferred the delivery of some goods and services to future years. Reductions in freight traffic may reduce demand for our replacement products.

The passenger transit railroad industry is also cyclical and is influenced by a variety of factors. New passenger transit car orders vary from year to year and are influenced by a variety of factors, including major replacement programs, the construction or expansion of transit systems by transit authorities and the quality and cost of alternative modes of transportation. To the extent that future funding for proposed public projects is curtailed or withdrawn altogether as a result of changes in political, economic, fiscal or other conditions beyond our control, such projects may be delayed or canceled, resulting in a potential loss of business for us, including transit aftermarket and new transit car orders. There can be no assurance that economic conditions will be favorable or that there will not be significant fluctuations adversely affecting the industry as a whole and Wabtec.

Our backlog is not necessarily indicative of the level of our future revenues.

Our backlog represents future production and estimated potential revenue attributable to firm contracts with, or written orders from, our customers for delivery in various periods.  Instability in the global economy, negative conditions in the global credit markets, volatility in the industries that our products serve, changes in legislative policy, adverse changes in the financial condition of our customers, adverse changes in the availability of raw materials and supplies, or un-remedied contract breaches could possibly lead to contract termination or cancellations of orders in our backlog or request for deferred deliveries of our backlog orders, each of which could adversely affect our cash flows and results of operations. For example, although the Company saw no material cancellations of backlog during the year ended December 31, 2021, the economic slowdown that was caused by COVID-19 did impact the timing of some orders in backlog as the delivery of goods and services previously expected to be completed in the current year were pushed out to subsequent periods.

Equipment failures, interruptions, delays in deliveries or extensive damage to our facilities, supply chains, distribution systems or information technology systems, could adversely affect our business.

All of our facilities, equipment, supply chains, distribution systems and information technology systems are subject to the risk of catastrophic loss due to unanticipated events, such as cyber attacks, disease outbreak, fires, earthquakes, explosions, floods, tornadoes, hurricanes or weather conditions. An interruption in our manufacturing capabilities, supply chains, distribution systems or information technology systems, whether as a result of such catastrophic loss or any other reason, could reduce, prevent or delay our production and shipment of our product offerings, result in defective products or services, damage customer relationships and our reputation and result in legal exposure and large repair or replacement expenses. This could result in the delay or termination of orders, the loss of future sales and a negative impact to our reputation with our customers.

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Third-party insurance coverage that we maintain with respect to such matters will vary from time to time in both type and amount depending on cost, availability and our decisions regarding risk retention, and may be unavailable or insufficient to protect us against losses. Any of these risks coming to fruition could materially adversely affect our business, results of operations and financial condition.

Disruption of our supply chain could have an adverse impact on our business, financial condition, and results of operations.

Our ability to make, move, and sell our products is critical to our success. Damage or disruption to our supply chain, including third-party manufacturing or transportation and distribution capabilities, could impair our ability to manufacture or sell our products. Failure to take adequate steps to mitigate the likelihood or potential impact of disruptions, or to effectively manage such events if they occur, particularly when a product is sourced from a single supplier or location, could adversely affect our business or financial results. Due to the ongoing impacts and uncertainty of continued impacts of the COVID-19 pandemic and the global government actions to contain it, some of our supply chains, particularly in China, India, the U.S., and Europe, have been, and continue to be, impacted. Supply chain disruptions and labor availability have caused component and chip shortages resulting in an adverse effect on the timing of the Company’s revenue generation. Additionally, broad-based inflation, escalation of metals and commodities costs, transportation and logistics costs and labor costs have all resulted from the COVID-19 pandemic. There can be no assurance that there will not be further, or deeper, supply chain disruptions, or that the steps we are taking to mitigate such disruptions will be effective or achieve their desired results in a timely fashion.

In addition, disputes with significant suppliers, including disputes regarding pricing or performance, could adversely affect our ability to supply products to our customers and could materially and adversely affect our product sales, financial condition, and results of operations.

We intend to pursue acquisitions, joint ventures and alliances that involve a number of inherent risks, any of which may cause us not to realize anticipated benefits.

One aspect of our business strategy is to selectively pursue acquisitions, joint ventures and alliances that we believe will improve our market position and provide opportunities to realize operating synergies. These transactions involve inherent risks and uncertainties, any one of which could have a material adverse effect on our business, results of operations and financial condition including:

•difficulties in achieving identified financial and operating synergies, including the integration of operations, services and products;

•diversion of management’s attention from other business concerns;

•the assumption of unknown liabilities; and

•unanticipated changes in the market conditions, business and economic factors affecting such an acquisition, joint venture or alliance.

We cannot assure that we will be able to consummate any future acquisitions, joint ventures or other business combinations. If we are unable to identify or consummate suitable acquisitions, joint ventures or alliances, we may be unable to fully implement our business strategy, and our business and results of operations may be adversely affected as a result. In addition, our ability to engage in such strategic transactions will be dependent on our ability to raise substantial capital, and we may not be able to raise the funds necessary to implement this strategy on terms satisfactory to us, if at all.

The integration of our recently completed acquisitions may not result in anticipated improvements in market position or the realization of anticipated operating synergies or may take longer to realize than expected.

Although we believe that our recent acquisitions will improve our market position and realize positive operating results, including operating synergies, operating expense reductions and overhead cost savings, we cannot be assured that these improvements will be obtained or the timing of such improvements. The management and acquisition of businesses involves substantial risks, any of which may result in a material adverse effect on our business and results of operations, including:

•the uncertainty that an acquired business will achieve anticipated operating results;

•significant expenses to integrate;

•diversion of management’s attention from business operations to integration matters;

•departure of key personnel from the acquired business;

•effectively managing entrepreneurial spirit and decision-making;

•integration of different information systems;

•unanticipated costs and exposure to unforeseen liabilities; and

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•impairment of assets.

The effects of COVID-19 and other potential future public health crises, epidemics, pandemics or similar events on our business, operating results and cash flows are uncertain.

We face a wide variety of risks related to health epidemics, pandemics and similar outbreaks, including the global outbreak of COVID-19. Since first reported in late 2019, the COVID-19 pandemic has dramatically impacted the global health and economic environment, including millions of confirmed cases, business slowdowns or shutdowns, government challenges and market volatility of an unprecedented nature. Although we have, to date, managed to continue most of our operations, we cannot predict the future course of events nor can we assure that this global pandemic, including its economic impact, will not have a material adverse impact on our business, financial position, results of operations and/or cash flows. The extent of the impact of the COVID-19 pandemic on our operational and financial performance remains uncertain and will depend on future pandemic related developments, including the duration of the pandemic, any potential subsequent waves of COVID-19 and new strains of the virus, the effectiveness, distribution and acceptance of COVID-19 vaccines, and related government actions to prevent and manage disease spread, all of which are uncertain and cannot be predicted. Our operations may be further impacted by the COVID-19 pandemic if significant portions of our workforce are unable to work effectively, including because of illness, quarantines, travel restrictions or absenteeism; steps the company has taken to protect health and well-being; government actions; facility closures; work slowdowns or stoppages; inadequate supplies or resources (such as reliable personal protective equipment, testing and vaccines); or other circumstances related to COVID-19. Governments around the world have taken steps to mitigate some of the more severe anticipated economic effects, but there can be no assurance that such steps will be effective or achieve their desired results in a timely fashion.

The COVID-19 pandemic has resulted in operational and supply chain disruptions for us and our customers and may further adversely affect operations and the operations of our customers and suppliers. Accordingly, COVID-19 had a materially adverse impact on our operations and business results for the years ended December 31, 2021, and 2020. Supply chain disruptions and shortages in labor availability have caused component and chip shortages, which have resulted in adverse effects on the timing of our revenue generation. Additionally, broad-based inflation, escalation of metals and commodities costs, transportation and logistics costs and labor costs have all resulted from the COVID-19 pandemic and have adversely impacted our business. We expect COVID-19 to continue to have a materially adverse impact on our operations and business results into 2022. The spread of COVID-19, and the emergence of new strains of the virus, have caused us to modify our business practices and to implement significant proactive measures to protect the health and safety of employees, and we may take further actions as may be required by government authorities or as we determine are appropriate under the circumstances. There is no certainty that such measures will be sufficient to mitigate the continued risks posed by the pandemic.

The COVID-19 pandemic and related volatility in financial markets and deterioration of national and global economic conditions could affect our business and operations in a variety of ways. For example, we have experienced and could experience further operational disruptions and financial losses as a result of the following:

•a decrease in demand for our products as a result of COVID-19 and cost control measures implemented by our customers;

•delays in orders or delivery of orders, the occurrence of which negatively impacts our cash conversion cycle and ability to convert our backlog into cash;

•inability to collect full or partial payments from customers due to deterioration in customer liquidity, including customer bankruptcies;

•a shutdown of one or multiple of our manufacturing facilities due to government restrictions or illness in connection     with COVID-19.

The continued spread of COVID-19 has also led to disruption and volatility in the global capital markets, which depending on future developments may make it more costly or difficult for us to obtain debt or equity financing, including to refinance our existing debt, or to identify or execute on investment opportunities, in each case on terms and within time periods acceptable to us. We are also monitoring the impacts of COVID-19 on the fair value of our assets. While we do not currently anticipate any material impairments on our assets as a result of COVID-19, future changes in expectations for sales, earnings and cash flows related to intangible assets and goodwill below our current projections could cause these assets to be impaired.

We continue to work with our stakeholders (including customers, employees, suppliers and local communities) in an effort to address responsibly this global pandemic. We continue to monitor the situation, to assess further possible implications to our employees, business, supply chain and customers, and to take certain actions in an effort to mitigate various adverse consequences. However, uncertainty around general global economic and market conditions, exacerbated by the COVID-19 pandemic, will have an impact on our sales and operations in 2022 and beyond.

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We expect that the longer the COVID-19 pandemic, including its economic disruption, continues, the greater the adverse impact on our business operations, financial performance and results of operations could be. Given the tremendous uncertainties and variables, we cannot at this time predict the impact of the global COVID-19 pandemic, or any future pandemic, but any one could have a material adverse impact on our business, financial position, results of operations and/or cash flows.

RISKS RELATED TO INTERNATIONAL OPERATIONS

A growing portion of our sales may be derived from our international operations, which exposes us to certain risks inherent in doing business on an international level.

For the fiscal year ended December 31, 2021, approximately 60% of our consolidated net sales were to customers outside of the United States. We intend to continue to expand our international operations, including in emerging markets, in the future. Our global headquarters for the Transit group is located in France, and we conduct other international operations through a variety of wholly and majority-owned subsidiaries and joint ventures, including in Australia, Austria, Brazil, Canada, China, Czech Republic, France, Germany, India, Italy, Kazakhstan, Macedonia, Mexico, the Netherlands, Poland, Russia, Spain, South Africa, Turkey, and the United Kingdom. As a result, we are subject to various risks, any one of which could have a material adverse effect on those operations and on our business as a whole, including:

•lack of complete operating control;

•lack of local business experience;

•currency exchange fluctuations and devaluations;

•restrictions on currency conversion or the transfer of funds or limitations on our ability to repatriate income or capital;

•the complexities of operating within multiple tax jurisdictions;

•foreign trade restrictions and exchange controls;

•adverse impacts of international trade policies, such as import quotas, capital controls or tariffs;

•difficulty enforcing agreements and intellectual property rights;

•the challenges of complying with complex and changing laws, regulations, and policies of foreign governments;

•the difficulties involved in staffing and managing widespread operations;

•the potential for nationalization of enterprises;

•economic, political and social instability;

•possible local catastrophes, such as natural disasters and epidemics; and

•possible terrorist attacks, conflicts and wars, including those against American interests.

Our exposure to the risks associated with international operations may intensify if our international operations expand in     the future.

We may incur increased costs due to fluctuations in interest rates and foreign currency exchange rates

In the ordinary course of business, we are exposed to increases in interest rates that may adversely affect funding costs associated with variable-rate debt and changes in foreign currency exchange rates. We are subject to currency exchange rate risk to the extent that our costs may be denominated in currencies other than those in which we earn and report revenues and vice versa. In addition, a decrease in the value of any of these currencies relative to the U.S. dollar could reduce our profits from non-U.S. operations and the translated value of the net assets of our non-U.S. operations when reported in U.S. dollars in our consolidated financial statements. We may seek to minimize these risks through the use of interest rate swap contracts and currency hedging agreements. There can be no assurance that any of these measures will be effective. Material changes in interest or exchange rates could result in material losses to us.

We have substantial operations located in emerging markets, and are subject to regulatory, economic, social and political uncertainties in such markets.

We have substantial operations located in emerging markets, such as Brazil, India, Kazakhstan, the Russian Federation and Ukraine. Operations in such emerging markets are inherently risky due to a number of regulatory, economic, social and political uncertainties. These risks include economies that may be dependent on only a few products and are therefore subject to significant fluctuations, weak legal systems which may affect our ability to enforce contractual rights, possible exchange controls, unstable governments, nationalization or privatization actions or other government actions affecting the flow of goods and currency.

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Significant changes in economic and regulatory policy in emerging countries as well as social or political uncertainties could significantly harm business and economic conditions in these markets generally and could disproportionately impact the rail industry, which could adversely affect our business and prospects in these markets.

In addition, physical and financial infrastructure may be less developed in some emerging countries than that of many developed nations. Any disruptions with respect to banking and financial infrastructure, communication systems or any public facility, including transportation infrastructure, could disrupt our normal business activity. Such disruptions could interrupt our business operations and significantly harm our results of operations, financial condition and cash flows.

RISKS RELATED TO MACRO-ECONOMIC CONDITIONS AND POLICIES

Prolonged unfavorable economic and market conditions could adversely affect our business.

Unfavorable general economic and market conditions in the United States and internationally, particularly in our key end markets, could have a negative impact on our sales and operations. To the extent that these factors result in continued instability of capital markets, shortages of raw materials or component parts, longer sales cycles, deferral or delay of customer orders or an inability to market our products effectively, our business and results of operations could be materially adversely affected.

We may be exposed to raw material shortages, supply shortages and fluctuations in raw material, energy and commodity prices.

We purchase energy, steel, aluminum, copper, rubber and rubber-based materials, chemicals, polymers and other key manufacturing inputs from outside sources, and traditionally have not had long-term pricing contracts with our pure raw material suppliers. The costs of these raw materials have been volatile historically and are influenced by factors that are outside our control. If we are unable to pass increases in the costs of our raw materials on to our customers, experience a lag in our ability to pass increases to our customers, or operational efficiencies are not achieved, our operating margins and results of operations may be materially adversely affected.

Our businesses compete globally for key production inputs. In addition, we rely upon third-party suppliers, including certain single-sourced suppliers, for various components for our products. In the event of a shortage or discontinuation of certain raw materials or key inputs, we may experience challenges sourcing certain of our components to meet our production requirements and may not be able to arrange for alternative sources of certain raw materials or key inputs. Any such shortage may materially adversely affect our competitive position versus companies that are able to better or more cheaply source such raw materials or key inputs.

Changes to international trade policies, including tariffs and foreign trade restrictions, could adversely affect our business.

As a global transportation company, we generate export sales from our U.S. operations and also derive international sales through our foreign subsidiaries, licensees and joint ventures. We also do business with industry suppliers located in various international markets. A protectionist trade environment in either the United States or those foreign countries in which we do business, such as a change in the current tariff structures, export compliance or other trade policies, may adversely affect our business. In particular, such policies may impact or delay our customers' investments in our products, reduce the competitiveness of our products in certain markets, and inhibit our ability to cost-effectively purchase necessary inputs from certain suppliers. In addition, to the extent developments in international trade relations result in reduced global trade or slower growth in global trade, it is likely that this would result in reductions in investment in freight and transit rail.

International trade policies are affected by a diverse array of factors, including global and national economic and political conditions, which make it impossible for us to predict future developments regarding tariffs and other trade restrictions. Although we actively monitor developments in international trade and proactively engage in efforts to mitigate the effect of trade policies, there can be no guarantee that these efforts will be successful.

LEGAL AND REGULATORY RISKS

We are subject to a variety of laws and regulations, including anti-corruption laws, in various jurisdictions.

We are subject to various laws, rules and regulations administered by authorities in jurisdictions in which we do business, such as the anti-corruption laws of the U.S. Foreign Corrupt Practices Act, the French Law n° 2016-1691 (Sapin II) and the U.K. Bribery Act, relating to our business and our employees. We are also subject to other laws and regulations governing our international operations, including regulations administered by the U.S. Department of Commerce’s Bureau of Industry and Security, the U.S. Department of Treasury’s Office of Foreign Assets Control, and various non-U.S. government entities, including applicable export control regulations, economic sanctions on countries and persons, customs requirements, currency exchange regulations, and transfer pricing regulations. Despite our policies, procedures and compliance programs, our internal controls and compliance systems may not be able to protect us from prohibited acts willfully committed by our employees, agents or business partners that would violate such applicable laws and regulations. Any such improper acts could

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damage our reputation, subject us to civil or criminal judgments, fines or penalties, and could otherwise disrupt our business, and as a result, could materially adversely impact our business, results of operations and financial condition.

In addition, our manufacturing operations are subject to safety, operations, maintenance and mechanical standards, rules and regulations enforced by various federal and state agencies and industry organizations both domestically and internationally. Our business may be adversely impacted by new rules and regulations or changes to existing rules or regulations, which could require additional maintenance or substantial modification or refurbishment of certain of our products or could make such products obsolete or require them to be phased out prior to their useful lives. We are unable to predict what impact these or other regulatory changes may have, if any, on our business or the industry as a whole. We cannot assure that costs incurred to comply with any new standards or regulations will not be material to our business, results of operations and financial condition.

We are subject to a variety of environmental laws and regulations.

We are subject to a variety of increasingly stringent environmental laws and regulations governing discharges to air and water, substances in products, the handling, storage and disposal of hazardous or solid waste materials and the remediation of contamination associated with releases of hazardous substances. We have incurred, and will continue to incur, both operating and capital costs to comply with environmental laws and regulations, including costs associated with the clean-up and investigation of some of our current and former properties and offsite disposal locations. We believe our operations currently comply in all material respects with all of the various environmental laws and regulations applicable to our business; however, there can be no assurance that environmental requirements will not change in the future or that we will not incur significant costs to comply with such requirements. Failure to comply with environmental laws and regulations could have significant consequences on our business and results of operations, including the imposition of substantial fines and sanctions for violations, injunctive relief (including requirements that we limit or cease operations at affected facilities), and reputational risk.

In addition, certain of our products are subject to extensive, and increasingly stringent, statutory and regulatory requirements governing, e.g., emissions and noise, including standards imposed by the U.S. Environmental Protection Agency, the European Union and other regulatory agencies around the world. We have made, and will continue to make, significant capital and research expenditures relating to compliance with these standards. The successful development and introduction of new and enhanced products in order to comply with new regulatory requirements are subject to other risks, such as delays in product development, cost over-runs and unanticipated technical and manufacturing difficulties. In addition to these risks, the nature and timing of government implementation and enforcement of these standards-particularly in emerging markets-are unpredictable and subject to change.

Future climate change regulation could result in increased operating costs, affect the demand for our products or affect the ability of our critical suppliers to meet our needs.

Management believes it is reasonably likely that the scientific and political attention to issues concerning the existence and extent of climate change, and the role of human activity in it, will continue, with the potential for further regulation that affects the company’s operations. The potential challenges posed by evolving climate change policy and prospective legislation are heavily dependent on the nature and degree of climate change legislation and the extent to which it applies to our industry. Although uncertain, these developments could increase costs or reduce the demand for the products the company sells. The company’s production and processing operations typically result in emissions of greenhouse gases. Likewise, emissions arise from midstream and downstream operations, including operations of our locomotives and other products. Finally, although beyond the control of the company, the use of fuels and related products by operators also results in greenhouse gas emissions that may be regulated. International agreements, domestic legislation and regulatory measures to limit greenhouse gas emissions are currently in various phases of discussion or implementation. While we are carefully monitoring developments and reviewing the challenges associated with alternative proposals, at this time, we cannot predict the ultimate impact of climate change and climate change legislation on our operations. Further, when or if these impacts may occur cannot be assessed until legislative policy is more developed and specific legislative proposals begin to take shape. Any laws or regulations that may be adopted to restrict or reduce emissions of greenhouse gas could require us to incur increased operating costs and could have an adverse effect on demand for our products. In addition, the price and availability of certain of the raw materials that we use could vary in the future as a result of environmental laws and regulations affecting our suppliers. An increase in the price of our raw materials or a decline in their availability could adversely affect our operating margins or result in reduced demand for our products.

The occurrence of litigation in which we are, or could be, named as a defendant is unpredictable.

From time to time, we are subject, directly or through our subsidiaries, to litigation or other commercial disputes and other legal and regulatory proceedings with respect to our business, customers, suppliers, creditors, stockholders, product liability (including, asbestos claims), intellectual property infringement, competition and antitrust claims, warranty claims or environmental-related matters.

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Due to the inherent uncertainties of any litigation, commercial disputes or other legal or regulatory proceedings, we cannot accurately predict their ultimate outcome, including the outcome of any related appeals. We may incur significant expense to defend or otherwise address current or future claims. Although we maintain insurance policies for certain risks, we cannot make assurances that this insurance will be adequate to protect us from all material judgments and expenses related to potential future claims or that these levels of insurance will be available in the future at economical prices or at all. In addition, although in some cases we may be indemnified by non-affiliated entities that retain liabilities in connection with specific matters, there can be no assurance that these indemnitors will remain financially viable and capable of satisfying their obligations.

Any litigation, even a claim without merit, could result in substantial costs and diversion of resources and could have a material adverse effect on our business and results of operations.

Our manufacturer’s warranties or product liability may expose us to potentially significant claims.

We warrant the workmanship and materials of many of our products. Accordingly, we are subject to a risk of product liability or warranty claims in the event that the failure of any of our products results in personal injury or death or does not conform to our customers’ specifications. In addition, in recent years, we have introduced a number of new products for which we do not have a history of warranty experience. Although we currently maintain liability insurance coverage, we cannot assure that product liability claims, if made, would not exceed our insurance coverage limits or that insurance will continue to be available on commercially acceptable terms, if at all. The possibility exists for these types of warranty claims to result in costly product recalls, significant repair costs and damage to our reputation.

RISKS RELATED TO DATA SECURITY AND INTELLECTUAL PROPERTY

If we are not able to protect our intellectual property and other proprietary rights, we may be adversely affected.

Our success can be impacted by our ability to protect our intellectual property and other proprietary rights. We rely primarily on patents, trademarks, copyrights, trade secrets and unfair competition laws, as well as license agreements and other contractual provisions, to protect our intellectual property and other proprietary rights. However, filing, prosecuting and defending patents on our products in all countries and jurisdictions throughout the world would be prohibitively expensive. Moreover, existing U.S. legal standards relating to the validity, enforceability and scope of protection of intellectual property rights offer only limited protection, may not provide us with any competitive advantages and may be challenged by third parties. The laws of countries other than the United States may be even less protective of intellectual property rights. As a result, a significant portion of our technology is not patented, and we may be unable or may not seek to obtain patent protection for this technology. Further, although we routinely conduct anti-counterfeiting activities in multiple jurisdictions, we have encountered counterfeit reproductions of our products or products that otherwise infringe on our intellectual property rights. Counterfeit components of low quality may negatively impact our brand value. Accordingly, despite our efforts, we may be unable to prevent third parties from infringing upon, counterfeiting or misappropriating our intellectual property or otherwise gaining access to our technology. If we fail to protect our intellectual property and other proprietary rights, then our business, results of operations and financial condition could be negatively impacted.

In addition, we operate in industries in which there are many third-party owners of intellectual property rights. Owners of intellectual property that we need to conduct our business as it evolves may be unwilling to license such intellectual property rights to us on terms we consider reasonable. Third party intellectual property owners may assert infringement claims against us based on their intellectual property portfolios. If we are sued for intellectual property infringement, we may incur significant expenses investigating and defending such claims, even if we prevail.

We face cybersecurity and data protection risks relating to cyber-attacks and information technology failures that could cause loss of confidential information and other business disruptions.

We rely extensively on the security, stability, and availability of technology systems in our business. We also collect, process, and retain sensitive and confidential customer information, including proprietary business information, personal data and other information that may be subject to privacy and security laws, regulations and/or customer-imposed data protection controls. Our business may be adversely impacted by unintentional technology disruptions, including those resulting from programming errors, employee operational errors, software defects, and product vulnerabilities.

We also provide technological products integral to train operation. Accordingly, our business may be adversely impacted by disruptions to our own or third-party information technology infrastructure, which could result from cybersecurity incidents, including, but not limited to, unauthorized access to the Company’s information technology systems, data access or acquisition, and/or encryption of the Company’s environment. For instance, one of our vendors publicly disclosed vulnerabilities in its operating system that we use for certain Wabtec products. A successful exploitation of our own or our vendors’ information technology infrastructure could result in service interruptions, safety hazards, misappropriation of confidential information, process failures, security breaches or other operational difficulties. Such an event could result in decreased revenues and increased capital, insurance or operating costs, including the increased costs of security to protect the

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Company’s infrastructure, among other results. Insurance maintained by the Company to protect against loss of business and other related consequences resulting from cyber incidents may not be sufficient to cover all damages. A disruption or compromise of the Company’s technology systems, even for short periods of time, could have a material adverse effect.

RISKS RELATED TO HUMAN CAPITAL

Labor shortages and labor disputes may have a material adverse effect on our operations and profitability.

We depend on skilled labor in our manufacturing and other businesses. Due to the competitive nature of the labor markets in which we operate, we may not be able to retain, recruit and train the personnel we require, particularly when the economy expands, production rates are high or competition for such skilled labor increases.

We collectively bargain with labor unions at some of our operations throughout the world. Failure to reach an agreement could result in strikes or other labor protests which could disrupt our operations. Furthermore, non-union employees in certain countries have the right to strike. If we were to experience a strike or work stoppage, it would be difficult for us to find a sufficient number of employees with the necessary skills to replace these employees. We cannot assure that we will reach any such agreement or that we will not encounter strikes or other types of conflicts with the labor unions of our personnel.

Any such labor shortages or labor disputes could have an adverse effect on our business, results of operations and financial condition, could cause us to lose revenues and customers and might have permanent effects on our business.

We rely on our management team and other key personnel.

We depend on the skills, working relationships, and continued services of key personnel, including our experienced management team, and other key employees. In addition, our ability to achieve our operating goals depends on our ability to identify, hire, train, and retain qualified individuals. We compete with other companies both within and outside of our industry for talented personnel, and we may lose key personnel or fail to attract, train, and retain other talented personnel. Any such loss or failure could adversely affect our product sales, financial condition, and operating results. If we lose key personnel, because they terminate their employment or retire, or as a result of illness, disability or death, or if an insufficient number of employees is retained to maintain effective operations, our business activities may be adversely affected and our management team's attention may be diverted. In addition, we may not be able to locate suitable replacements for any key personnel that we lose, or we may not be able to hire potential replacements on reasonable terms, all of which could adversely affect our product sales, financial condition, and operating results.

RISKS RELATED TO OUR INDEBTEDNESS

Our indebtedness could adversely affect our financial health.

At December 31, 2021, we had total debt of $4.1 billion, primarily related to Senior Notes. Being indebted could have important consequences to us. For example, our indebtedness could:

•increase our vulnerability to general adverse economic and industry conditions;

•require us to dedicate a substantial portion of our cash flow from operations to payments on our indebtedness, thereby reducing the availability of our cash flow to fund working capital, capital expenditures, acquisitions and other general corporate purposes;

•limit our flexibility in planning for, or reacting to, changes in our business and the industries in which we operate;

•place us at a disadvantage compared to competitors that have less debt; and

•limit our ability to borrow additional funds.

Moreover, our Credit Agreement and the indentures governing our senior notes permit us to incur substantial additional indebtedness, which may further contribute to, or exacerbate the impact of, the foregoing impacts.

The indentures for our outstanding senior notes and our Credit Agreement contain various covenants that limit our management’s discretion in the operation of our businesses.

Our Credit Agreement subjects us to customary (i) affirmative covenants, including requirements with respect to certain reporting obligations on us and our subsidiaries, and (ii) negative covenants, including limitations on: indebtedness; liens; restricted payments; fundamental changes (including certain changes in control); business activities; transactions with affiliates; restrictive agreements; changes in fiscal year; and use of proceeds. In addition, we are required to maintain (i) a ratio of EBITDA to interest expense of at least 3.00 to 1.00 over each period of four consecutive fiscal quarters ending on the last day of a fiscal quarter and (ii) a Leverage Ratio, calculated as of the last day of a fiscal quarter for a period of four consecutive fiscal quarters, of 3.25 to 1.00 or less; provided that, in the second quarter of 2021, the Credit Agreement was amended so that we may, upon our request, increase the maximum Leverage Ratio to (x) 3.75 to 1.00 at the end of the fiscal quarter in which our acquisition of Nordco was consummated and each of the three fiscal quarters immediately following such fiscal quarter and (y)

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3.50 to 1.00 at the end of each of the fourth and fifth full fiscal quarters after the consummation of such acquisition. The Company has not requested any such increase in the leverage ratio at this time.

The indentures under which our Senior Notes were issued contain covenants and restrictions which limit, subject to certain exceptions, certain sale and leaseback transactions with respect to principal properties, the incurrence of secured debt without equally and ratably securing the senior notes and certain merger and consolidation transactions. In addition, the indentures require that we offer to repurchase our outstanding Senior Notes upon the occurrence of certain change of control triggering events.

Item 1B.			UNRESOLVED STAFF COMMENTS

None.

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Item 2.			PROPERTIES

Facilities

The following table provides certain summary information about the principal facilities owned or leased by the Company as of December 31, 2021. The Company believes that its facilities and equipment are generally in good condition and that, together with scheduled capital improvements, they are adequate for its present and immediately projected needs. Leases on the facilities are mainly long-term and generally include options to renew.  

Location

Primary Use

Segment

Own/Lease

Approximate Square Feet

Domestic

Erie, PA

Manufacturing/Warehouse/Office

Freight

Own

3,800,000

Grove City, PA

Manufacturing/Warehouse

Freight

Own

486,000

Wilmerding, PA

Manufacturing/Service

Freight

Own

365,000

(1)

Salem, VA

Manufacturing

Freight

Own

320,000

Justin, Texas

Manufacturing/Warehouse

Freight

Own

305,000

Fort Worth, Texas

Manufacturing/Warehouse

Freight

Own

304,000

Houston, Texas

Manufacturing/Service

Freight

Own

280,000

Hanover Park, Illinois

Manufacturing

Freight

Lease

250,000

Pittsburgh, PA

Office

Global HQ

Lease

84,000

International

Shenyang, China

Manufacturing/Warehouse/Office

Transit

Own

336,000

Doncaster, UK

Manufacturing

Transit

Own

330,000

Changzhou, China

Manufacturing

Transit

Own

316,000

Northampton, UK

Manufacturing

Freight

Lease

300,000

Shenyang City, China

Manufacturing

Transit

Lease

291,000

Piossasco, Italy

Manufacturing

Transit

Own

301,000

Burton-on-Trent, UK

Manufacturing/Office

Transit

Lease

260,000

Bangalore, India

Manufacturing

Freight/Transit

Lease

168,000

(1)Approximately 250,000 square feet are currently used in connection with the Company’s manufacturing operations. The remainder is leased to a third party.

Item  3.			LEGAL PROCEEDINGS

Information with respect to legal proceedings is included in Note 18 of “Notes to Consolidated Financial Statements” included in Part IV, Item 15 of this report and incorporated by reference herein.

Item  4.			MINE SAFETY DISCLOSURES

Not applicable.

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PART II

Item  5.			MARKET FOR REGISTRANT’S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER PURCHASES OF EQUITY SECURITIES

The Common Stock of the Company is listed on the New York Stock Exchange under the symbol “WAB.” As of February 11, 2022, there were 185,290,114 shares of Common Stock outstanding held by approximately 109,650 holders of record.

The Company has historically paid quarterly dividends to shareholders, subject to quarterly approval by our Board of Directors, currently at a rate of approximately $111 million annually. The declaration and payment of future dividends are at the discretion of the Board of Directors.

The following performance graph and related information shall not be deemed “soliciting material” or to be “filed” with the Securities and Exchange Commission, nor shall such information be incorporated by reference to any future filings under the Securities Act of 1933 and the Securities Exchange Act of 1934, each as amended, except to the extent that Wabtec specifically incorporates it by reference into such filing. The graph below compares the total stockholder return through December 31, 2021, of Wabtec’s common stock to (i) the S&P 500 and (ii) our peer group of manufacturing companies which consists of the following publicly traded companies: AGCO, AMETEK, CSX, Cummins, Dover, Emerson Electric, Fortive, Howmet Aerospace, Illinois Tool Works, Norfolk Southern, Oshkosh, Parker-Hannifin, Rockwell Automation, Terex, Textron, The Greenbrier Companies, Trinity Industries, and Xylem.

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Issuer Purchases of Common Stock
Month						Total Number of Shares Purchased						Average Price Paid per Share						Total Number of Shares Purchased as Part of Publicly Announced Programs (1)						Maximum Dollar Value of Shares That May Yet Be Purchased Under the Programs (1) In millions
October 2021						—						$	—					—						$	300
November 2021						1,048,036						$	95.40					1,048,036						$	200
December 2021						—						$	—					—						$	200
Total quarter ended December 31, 2021						1,048,036						$	95.40					1,048,036						$	200

(1)    On February 10, 2022, the Board of Directors increased its stock repurchase authorization to increase the amount available for stock repurchases to $750 million of the Company’s outstanding shares. This new stock repurchase authorization supersedes the previous authorization of $500 million, of which $151 million remained at the reauthorization date. No time limit was set for the completion of the program which conforms to the requirements under the Senior Credit Facility and the Senior Notes currently outstanding. The Company may repurchase shares in the future at any time, depending upon market conditions, our capital needs and other factors. Purchases of shares may be made by open market purchases or privately negotiated purchases and may be made pursuant to Rule 10b5-1 plan or otherwise.

Item 6.			[RESERVED]

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Item 7.			MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

OVERVIEW

Wabtec is one of the world’s largest providers of locomotives, value-added, technology-based equipment, systems and services for the global freight rail and passenger transit industries. Our highly engineered products, which are intended to enhance safety, improve productivity and reduce maintenance costs for customers, can be found on most locomotives, freight cars, passenger transit cars and buses around the world. Our core products and services are essential in the safe and efficient operation of freight rail and passenger transit vehicles. Wabtec is a global company with operations in over 50 countries and our products can be found in more than 100 countries throughout the world. In 2021, approximately 60% of the Company’s net sales came from customers outside the U.S.

Wabtec’s long-term financial goals are to drive strong cash flow conversion, maintain a strong credit profile while minimizing our overall cost of capital, increase margins through strict attention to cost controls, drive improved efficiencies across the business, and increase revenues through a focused growth strategy, including product innovation and new technologies, global and market expansion, aftermarket products and services, and acquisitions. In addition, Management evaluates the Company’s current operational performance through measures such as safety, quality and on-time delivery.

The Company primarily serves the worldwide freight and transit rail industries. As such, our operating results are largely dependent on the level of activity, financial condition and capital spending plans of railroads and passenger transit agencies around the world, and transportation equipment manufacturers who serve those markets. Many factors influence these industries, including general economic conditions; traffic volumes, as measured by freight carloads and passenger ridership; government spending on public transportation; and investment in new technologies. In general, trends such as increasing urbanization, a focus on sustainability and environmental awareness, an aging equipment fleet, and growth in global trade are expected to drive continued investment in freight and transit rail.

The Company monitors a variety of factors and statistics to gauge market activity. Freight rail markets around the world are driven primarily by overall economic conditions and activity, while Transit markets are driven primarily by government funding and passenger ridership. Changes in these market drivers can cause fluctuations in demand for Wabtec's products and services.

Business Update

The COVID-19 pandemic has continued to impact our sales channels, supply chain, manufacturing operations, workforce and other key aspects of our operations. The Company continues to monitor the situation and guidance from international and domestic authorities, including federal, state, and local public health authorities; however, there are numerous uncertainties, including the duration and severity of the pandemic, availability and effectiveness of vaccines, impact of variants of the disease, actions that may be taken by governmental authorities and private industry, including preventing or curtailing the operations of our plants, the potential impact on global economic activity, global supply chain operations, our employees, our customers, suppliers and end-markets and other consequences that could negatively impact our business. We also face the possibility that government policies may become more restrictive especially if COVID-19 transmission rates increase in certain areas. As a result of these numerous uncertainties, we are unable to specifically predict the extent and length of time the COVID-19 pandemic will negatively impact our business.

The COVID-19 pandemic has increased the uncertainty around global economic and market conditions, which impacts our sales and operations. To the extent that these factors cause, or exacerbate, instability of capital markets, shortages of raw materials or component parts, longer sales cycles, deferral or delay of customer orders or an inability to market our products effectively, our business and results of operations could be materially adversely affected, and the materially adverse impacts that we have experienced as a result of the COVID-19 pandemic could continue or worsen. In addition, we face risks associated with our growth strategy including the level of investment that customers are willing to make in new technologies developed by the industry and the Company, and risks inherent in global expansion. When necessary, we will modify our financial and operating strategies to address changes in market conditions and risks.

Although the U.S. and other international governments deemed rail transportation as “critical infrastructure” providing essential services during the COVID-19 pandemic, the COVID-19 pandemic had a materially adverse impact on our operations and business results for the years ended December 31, 2021 and 2020, which is discussed in more detail in the Results of Operations section below. Supply chain disruptions and labor availability have caused component, raw material and chip shortages resulting in an adverse effect on the timing of the Company’s revenue generation. Additionally, broad-based inflation, escalation of metals and commodities costs, transportation and logistics costs and labor costs have all resulted from the COVID-19 pandemic. The Company has implemented various mitigating actions to lessen the impact of supply chain disruptions caused by the COVID-19 pandemic. These actions include price escalations in long-term contracts, implementing price surcharges, driving operational efficiencies through various cost mitigation efforts and discretionary spend management,

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strategic sourcing alignments, and accelerating integration synergies where possible. The Company expects to continue to realize these increased costs over the next few quarters.

Uncertainty around general global economic and market conditions, exacerbated by the COVID-19 pandemic, will have an impact on our sales and operations in 2022 and beyond. To the extent that these factors cause instability of capital markets, supply chain disruptions including shortages of raw materials or component parts, labor availability, longer sales cycles, deferral or delay of customer orders, or an inability to market our products effectively, our business and results of operations could be materially adversely affected.

Cybersecurity Exposure

During the third quarter 2021, one of our vendors publicly disclosed vulnerabilities in one of its operating systems that is used in a range of products across the rail sector and other industries, including in certain Wabtec products. In response, Wabtec reviewed its digital onboard locomotive products and locomotive control systems to determine which products may be affected and the potential impact to Wabtec, our customers and other relevant parties. To date, we are unaware of any exploitation of these vulnerabilities; however, we are working closely with our vendor to appropriately address potentially impacted products. Additionally, we have communicated with potentially affected customers and discussed mitigation strategies.

ACQUISITIONS

Wabtec acquired Nordco, a leading North American supplier of new, rebuilt and used maintenance of way equipment, on March 31, 2021, and GE Transportation, a former business unit of GE, on February 25, 2019. For additional information related to these acquisitions refer to Note 3 of "Notes to Consolidated Financial Statements" included in Part IV, Item 15 of this report.

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RESULTS OF OPERATIONS

Consolidated Results

2021 COMPARED TO 2020

The following table shows our Consolidated Statements of Operations for the years indicated.

						For the year ended December 31,
In millions						2021						2020
Net sales:
Sales of goods						$	6,205					$	6,233
Sales of services						1,617						1,323
Total net sales						7,822						7,556
Cost of sales:
Cost of goods						(4,545)						(4,629)
Cost of services						(908)						(790)
Total cost of sales						(5,453)						(5,419)
Gross profit						2,369						2,137
Operating expenses:
Selling, general and administrative expenses						(1,030)						(948)
Engineering expenses						(176)						(162)
Amortization expense						(287)						(282)
Total operating expenses						(1,493)						(1,392)
Income from operations						876						745
Other income and expenses:
Interest expense, net						(177)						(199)
Other income, net						38						11
Income before income taxes						737						557
Income tax expense						(172)						(145)
Net income						565						412
Less: Net (income) loss attributable to noncontrolling interest						(7)						2
Net income attributable to Wabtec shareholders						$	558					$	414

The following table shows the major components of the change in net sales in 2021 from 2020:

In millions						Freight Segment						Transit Segment						Total
2020 Net Sales						$	5,082					$	2,474					$	7,556
Acquisitions						138						—						138
Foreign Exchange						23						111						134
Organic						(4)						(2)						(6)
2021 Net Sales						$	5,239					$	2,583					$	7,822

The following discussion compares our results for the year ended December 31, 2021 to the year ended December 31, 2020. The discussion comparing our results for the year ended December 31, 2020 to the year ended December 31, 2019 is included within Management's Discussion and Analysis of Financial Condition and Results of Operation in our Annual Report on Form 10-K for the year ended December 31, 2020, filed with the SEC on February 19, 2021.

Net sales

Net sales for the year ended December 31, 2021 increased by $266 million, or 3.5%, to $7.82 billion compared to the same period in 2020. Organic sales decreased $6 million which is primarily attributable to a net organic decrease of $4 million in the Freight Segment. Services sales increased from higher locomotive modernizations and overhauls and a decrease in locomotive parkings while Components sales increased due to a higher railcar build and lower railcar parkings. These increases were offset by lower Equipment sales due to lower locomotive sales, particularly in North America and Egypt, and lower Digital Electronics sales primarily due to chip shortages caused by supply chain disruptions. These decreases in Freight were

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offset by an increase in sales from acquisitions, which contributed $138 million, and favorable changes in foreign exchange rates increased sales by $134 million, primarily in the Transit segment.

Cost of sales

Cost of sales for the year ended December 31, 2021 increased by $34 million, or 0.6%, to $5.45 billion compared to the same period in 2020. The increase is primarily due to the increase in sales, increased metals, transportation and labor costs and higher restructuring costs. Cost of sales as a percentage of sales was 69.7% and 71.7% for the years ended December 31, 2021 and 2020, respectively, representing a 2.0 percentage point decrease. The decrease as a percentage of sales is primarily due to favorable product mix, improved productivity, synergy savings and the structural cost actions taken in the prior year, partially offset by the increase in the costs described above. Cost of sales for the year ended December 31, 2021 included $53 million of restructuring costs, primarily for footprint rationalization and headcount actions in Europe. Cost of sales for the year ended December 31, 2020 included $45 million of restructuring costs, primarily for footprint rationalization and related headcount actions as part of the acquisition of GE Transportation and in response to the COVID-19 pandemic.

Operating expenses

Total operating expenses increased $101 million, or 7.3%, for the year ended December 31, 2021 compared to the same period in 2020. Operating expenses as a percentage of sales was 19.1% and 18.4% for the year ended December 31, 2021 and 2020, respectively. Selling, general and administrative expenses ("SG&A") increased $82 million for the year ended December 31, 2021 compared to the same period in 2020. The increase is primarily due to higher employee compensation and benefit costs, costs incurred to support the higher sales volume and incremental expense from the acquisition of Nordco, partially offset by a decrease in restructuring and transaction costs. Restructuring and transaction costs included in SG&A were $25 million and $71 million for the year ended December 31, 2021 and 2020, respectively, and were primarily for headcount actions and footprint rationalization programs. Engineering expense increased $14 million primarily due to investments in new technology and incremental expense from the acquisition of Nordco. Amortization expense increased $5 million, due to the acquisition of Nordco.

Interest expense, net

Interest expense, net, decreased $22 million for the year ended December 31, 2021 over the same period in 2020 attributable to lower overall average debt balances and lower interest rates.

Other income, net

Other income, net, was $38 million of income in 2021 compared to $11 million of income in the same period of 2020. The increase is primarily attributable to foreign exchange gains in the current year compared to losses in the prior year as well as higher equity income in the current year.

Income taxes

The effective income tax rate was 23.2% and 26.0% in 2021 and 2020, respectively. The change in effective tax rate in 2021 is primarily the result of filing amended federal and state income tax returns in 2021. The Company amended the 2019 federal tax return to incorporate changes in tax regulations which generated a net operating loss that was carried back to tax years 2014 to 2016, which were at a higher federal tax rate. See Note 11 of "Notes to Consolidated Financial Statements" included in Part IV, Item 15 of this report for additional information.

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Freight Segment

The following table shows our Consolidated Statements of Operations for our Freight Segment:

						For the year ended December 31,
In millions						2021						2020
Net sales:
Sales of goods						$	3,646					$	3,790
Sales of services						1,593						1,292
Total net sales						5,239						5,082
Cost of sales:
Cost of goods						(2,682)						(2,829)
Cost of services						(890)						(765)
Total cost of sales						(3,572)						(3,594)
Gross profit						1,667						1,488
Operating expenses						(950)						(904)
Income from operations ($)						$	717					$	584
Income from operations (%)						13.7		%				11.5		%

The following table shows the major components of the change in net sales for the Freight Segment in 2021 from 2020:

In millions
2020 Net Sales						$	5,082
Acquisitions						138
Foreign Exchange						23
Changes in Sales by Product Line:
Equipment						(229)
Components						31
Digital Electronics						(33)
Services						227
2021 Net Sales						$	5,239

Net sales

Freight Segment sales increased by $157 million, or 3.1%, to $5.24 billion, compared to the same period in 2020, however, net organic sales decreased $4 million. Services sales increased from higher locomotive modernizations and overhauls and a decrease in locomotive parkings while Components sales increased due to a higher railcar build and lower railcar parkings. These increases were offset by lower Equipment Sales due to lower locomotive sales, particularly in North America and Egypt, and lower Digital Electronics sales primarily due to chip shortages caused by supply chain disruptions that have caused order delays but have not resulted in order cancellations. The organic sales decrease was more than offset by sales from acquisitions of $138 million and the effects of favorable foreign exchange rates of $23 million.

Cost of sales

Freight Segment cost of sales decreased by $22 million, to $3.57 billion, compared to the same period in 2020. The decrease is primarily due to favorable product mix, productivity and synergies and lower restructuring costs partially offset by increased metals, transportation and labor costs. Cost of sales as a percentage of sales was 68.2% and 70.7% for the years ended December 31, 2021 and 2020, respectively, representing a 2.5 percentage point decrease which also benefited from improved absorption of fixed costs. Cost of sales for the year ended December 31, 2021 includes $8 million of restructuring and transaction costs, primarily for amortization of the inventory step-up recorded in purchase accounting for the acquisition of Nordco and headcount actions as part of the ongoing integration of GE Transportation. Cost of sales for the year ended December 31, 2020 included $30 million of restructuring costs, primarily for costs for footprint rationalization and related headcount actions as part of the integration of GE Transportation and in response to the COVID-19 pandemic.

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Operating expenses

Freight Segment operating expenses increased $46 million, or 5.1%, for the year ended December 31, 2021 compared to the same period in 2020. SG&A increased $31 million for the year ended December 31, 2021 compared to the same period in 2020. The increase is primarily due to higher employee compensation and benefit costs and incremental expense from the acquisition of Nordco, partially offset by a decrease in restructuring and transaction costs. Restructuring and transaction costs included in SG&A were $1 million and $46 million for the years ended December 31, 2021 and 2020, respectively, and were primarily for headcount actions and footprint rationalization as part of the integration of GE Transportation. Engineering expense increased $10 million primarily due to investments in new technology and incremental expense from the acquisition of Nordco. Amortization expense increased $5 million due to the acquisition of Nordco.

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Transit Segment

The following table shows our Consolidated Statements of Operations for our Transit Segment:

						For the year ended December 31,
In millions						2021						2020
Net sales						$	2,583					$	2,474
Cost of sales						(1,881)						(1,825)
Gross profit						702						649
Operating expenses						(464)						(419)
Income from operations ($)						$	238					$	230
Income from operations (%)						9.2		%				9.3		%

The following table shows the major components of the change in net sales for the Transit Segment in 2021 from 2020:

In millions
2020 Net Sales						$	2,474
Foreign Exchange						111
Changes in Sales by Product Line:
Original Equipment Manufacturing						6
Aftermarket						(8)
2021 Net Sales						$	2,583

Net sales

Transit Segment sales for the year ended December 31, 2021 increased by $109 million, or 4.4%, to $2.58 billion compared to the same period in 2020, with foreign exchange rates being the primary driver of the increase. Transit segment organic sales decreased $2 million due to supply chain issues and disruptions caused by the COVID-19 pandemic.

Cost of sales

Transit Segment cost of sales for the year ended December 31, 2021 increased by $56 million, or 3.1%, to $1.88 billion compared to the same period in 2020. The increase is primarily due to higher restructuring costs, increased metals, transportation and labor costs and the effect of foreign exchange rates. Cost of sales as a percentage of sales was 72.8% and 73.8% for the years ended December 31, 2021 and 2020, respectively, representing a 1.0 percentage point decrease which also benefited from improved operational efficiency and the impact that the COVID-19 pandemic had on margins in 2020. Cost of sales for the years ended December 31, 2021 and 2020 included $45 million and $14 million of restructuring costs, respectively, primarily for footprint rationalization in Europe.

Operating expenses

Transit Segment operating expenses increased $45 million, or 10.7%, in 2021 compared to the same period in 2020. SG&A increased $41 million for the year ended December 31, 2021 compared to the same period in 2020. The increase is primarily due to higher employee compensation and benefit costs and the effect of foreign exchange rates. Restructuring and transaction costs included within SG&A were $14 million for both years ended December 31, 2021 and 2020 and were primarily for headcount actions and footprint rationalization in Europe. Engineering expense increased $4 million due to investments in new technology, and amortization expense remained consistent year over year.

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Liquidity and Capital Resources

Liquidity is provided by operating cash flow and borrowings under the Company’s Senior Notes and unsecured credit facility with a consortium of commercial banks. Additionally, the Company utilizes the revolving receivables program and supply chain financing program described below for added flexibility as part of our liquidity management strategy. The following is a summary of selected cash flow information and other relevant data:

						For the year ended December 31,
In millions						2021						2020
Cash provided by (used for):
Operating activities						$	1,073					$	784
Investing activities						$	(540)					$	(155)
Financing activities						$	(653)					$	(619)

 Operating activities. Cash provided by operations increased $289 million in 2021 to $1,073 million compared with $784 million in 2020. Significant changes to the sources and (uses) of cash for the twelve month periods include the following:

•$280 million attributable to higher Net income and other favorable changes in the related statement of income;

•$(235) million from net changes in working capital driven by: $(266) million from changes in receivables due to timing and volume of sales and $(125) million from the pay down of the Revolving Receivables Program; $(222) million unfavorable change in inventory primarily from inventory build-ups in response to supply chain challenges; $378 million improvement from accounts payable, primarily due to the timing of payments to suppliers and the COVID-19 related impacts on expenditures in 2020;

•favorable change in accrued liabilities and customer deposits of $175 million, which related to approximately $120 million of cash payments made during 2020 for costs related to the GE Transportation acquisition, higher incentive compensation accruals and timing of severance accruals related to site rationalization; and,

•approximately $40 million related to settlement of litigation in 2020 that did not recur in 2021.

Investing activities. In 2021 and 2020, cash used in investing activities was $(540) million and $(155) million, respectively. The major components of the cash outflow in 2021 was planned additions to property, plant, and equipment of $(130) million for continued investments in our facilities and manufacturing processes, and $(435) million in net cash paid for acquisitions, primarily for Nordco. The major components of the cash outflow in 2020 was $(136) million for additions to property, plant, and equipment and $(40) million in net cash paid for various small acquisitions.

Financing activities. In 2021, cash used for financing activities was $(653) million, which included net debt payments of $(161) million, $(99) million of contingent consideration payments related to the GE Transportation acquisition, $(92) million of dividend payments, and $(300) million for share repurchases. In 2020, cash used for financing activities was $(619) million, which included net debt payments of $(199) million, $(115) million of contingent consideration payments related to the GE Transportation acquisition, $(93) million of dividend payments, and $(207) million for share repurchases.

On June 3, 2021, Wabtec Transportation Netherlands B.V. ("Wabtec Netherlands") issued €500 million of 1.25% Senior Notes due in 2027, which are fully and unconditionally guaranteed by the Company. Also on June 3, 2021, the Company repaid all outstanding borrowings and interest related to the 364 Day Facility, effectively retiring the facility. Additional information with respect to Senior Notes, credit facilities and long-term debt is included in Note 8 of "Notes to Consolidated Financial Statements” included in Part IV, Item 15 of this report.

The Company borrows and repays against the Multi-Currency Revolving loan facility for added flexibility in liquidity to manage cash during the operating cycle. The proceeds from borrowing and the repayments are shown within the "Proceeds from debt, net of issuance costs" and "Payments of debt" lines, respectively, presented in the Consolidated Statements of Cash Flows.

As of December 31, 2021, the Company held approximately $473 million of cash and cash equivalents. Of this amount, approximately $91 million was held within the United States and approximately $382 million was held outside of the United States, primarily in Europe, India, China, and Brazil. While repatriation of some cash held outside the United States may be restricted by local laws, most of the Company’s foreign cash could be repatriated to the United States.

Revolving Receivables Program

In May 2020, the Company entered into a revolving agreement to transfer up to $150 million of certain receivables of certain subsidiaries of the Company (the "Originators") through our bankruptcy-remote subsidiary to a financial institution on a

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recurring basis in exchange for cash equal to the gross receivables transferred. During the first quarter of 2021, the Company amended its revolving agreement to increase the amount of certain receivables that can be transferred from $150 million to $200 million. Additional information with respect to the Revolving Receivables Program is included in Note 2 of "Notes to Consolidated Financial Statements" included in Part IV, Item 15 of this report and incorporated by reference herein.

Supply Chain Financing Program

The Company has entered into supply chain financing arrangements with third-party financial institutions to provide our vendors with enhanced payment options while providing the Company with added working capital flexibility. The Company does not provide any guarantees under these arrangements, does not have an economic interest in our supplier's voluntary participation and does not receive an economic benefit from the financial institutions. The arrangements do not change the payable terms negotiated by the Company and our vendors and does not result in a change in the classification of amounts due as accounts payable in the Consolidated Balance Sheets.

Guarantor Summarized Financial Information

The obligations of Westinghouse Air Brake Technologies Corporation under the Senior Notes, Senior Credit Facility and 364 Day Facility have been fully and unconditionally guaranteed by certain of the parent company's U.S. subsidiaries. Each guarantor is 100% owned by the parent company, with the exception of GE Transportation, a Wabtec Company, which has 15,000 shares outstanding of Class A Non-Voting Preferred Stock held by General Electric Company.

The following tables present summarized financial information of the parent and the guarantor subsidiaries on a combined basis. The combined summarized financial information eliminates intercompany balances and transactions among the parent and guarantor subsidiaries and equity in earnings and investments in any guarantor subsidiaries or non-guarantor subsidiaries. The summarized financial information is provided in accordance with the reporting requirements of Rule 13-01 under SEC Regulation S-X for the issuer and guarantor subsidiaries.

Summarized Statement of Income

						Unaudited
						Westinghouse Air Brake Technologies Corp. and Guarantor Subsidiaries
In millions						Year Ended December 31, 2021
Net sales						$	3,750
Gross profit						820
Net income attributable to Wabtec shareholders						175

Summarized Balance Sheets

						Unaudited
						Westinghouse Air Brake Technologies Corp. and Guarantor Subsidiaries
In millions						December 31, 2021						December 31, 2020
Current assets						$	999					$	1,092
Noncurrent assets						$	2,087					$	1,836
Current liabilities						$	1,382					$	1,409
Long-term debt						$	3,483					$	3,780
Other non-current liabilities						$	552					$	374

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The following is a description of the transactions between the combined Westinghouse Air Brake Technologies Corp. and guarantor subsidiaries with non-guarantor subsidiaries.

						Unaudited
						Westinghouse Air Brake Technologies Corp. and Guarantor Subsidiaries
In millions						Year Ended December 31, 2021
Net sales to Non-Guarantor Subsidiaries						$	643
Purchases from Non-Guarantor Subsidiaries						1,151
						Unaudited
						Westinghouse Air Brake Technologies Corp. and Guarantor Subsidiaries
In millions						December 31, 2021
Amount due from/(to) Non-Guarantor Subsidiaries						$	(6,428)

Summarized Financial Information—Euro Notes

The obligations under Wabtec Netherlands’ Euro Notes are fully and unconditionally guaranteed by Westinghouse Air Brake Technologies Corporation. Wabtec Netherlands is a wholly-owned, indirect subsidiary of the parent company. Wabtec Netherlands is a holding company and does not have any independent operations. Its assets consist of its investments in subsidiaries, which are separate and distinct legal entities that are not guarantors of the Euro Notes and have no obligations to pay amounts due under Wabtec Netherlands’ obligations.

The following tables present summarized financial information of Wabtec Netherlands, as the issuer of the Euro Notes, and Westinghouse Air Brake Technologies Corporation, as the parent guarantor, on a combined basis. The combined summarized financial information eliminates all intercompany balances and transactions among Wabtec Netherlands and Westinghouse Air Brake Technologies Corporation as well as all equity in earnings from and investments in any subsidiary of Westinghouse Air Brake Technologies Corporation, other than Wabtec Netherlands, which we refer to below as the Non-Issuer and Non-Guarantor Subsidiaries. The summarized financial information is provided in accordance with the reporting requirements of Rule 13-01 under SEC Regulation S-X for the issuer and parent guarantor.

Summarized Statement of Income

						Unaudited
						Issuer and Guarantor
In millions						Twelve Months Ended December 31, 2021
Net sales						$	540
Gross profit						97
Net loss attributable to Wabtec shareholders						(267)

Summarized Balance Sheets

						Unaudited
						Issuer and Guarantor
In millions						December 31, 2021						December 31, 2020
Current assets						$	252					$	408
Noncurrent assets						$	805					$	710
Current liabilities						$	499					$	824
Long-term debt						$	4,044					$	3,780
Other non-current liabilities						$	209					$	314

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The following is a description of the transactions between the combined Westinghouse Air Brake Technologies Corp. and Wabtec Netherlands, with the subsidiaries of Westinghouse Air Brake Technologies Corp., other than Wabtec Netherlands, none of which are guarantors of the Euro Notes.

						Unaudited
						Issuer and Guarantor
In millions						Twelve Months Ended December 31, 2021
Net sales to non-issuer and non-guarantor subsidiaries						$	69
Purchases from non-issuer and non-guarantor subsidiaries						109
						Unaudited
						Issuer and Guarantor
In millions						December 31, 2021
Amount due from/(to) non-issuer and non-guarantor subsidiaries						$	(6,262)

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Contractual Obligations and Off-Balance Sheet Arrangements

The Company is obligated to make future payments under various contracts such as debt and lease agreements, and has certain contingent commitments. The Company has grouped these contractual obligations and off-balance sheet arrangements into operating activities, financing activities, and investing activities in the same manner as they are classified in the Statement of Consolidated Cash Flows to provide a better understanding of the nature of the obligations and arrangements and to provide a basis for comparison to historical information. The table below provides a summary of contractual obligations and off-balance sheet arrangements as of December 31, 2021:

In millions						Total						2022						2023-24						2025-26						2027+
Operating activities:
Purchase obligations (1)						$	117					$	73					$	40					$	4					$	—
Operating leases (2)						345						60						99						73						113
Pension and postretirement benefit payments (3)						202						18						38						40						106
Interest payments (4)						765						155						282						198						130
Financing activities:
Long-term debt						4,081						2						1,012						1,250						1,817
Dividends to shareholders (5)						111						111						—						—						—
Contingent consideration (6)						256						110						146						—						—
Total						$	5,877					$	529					$	1,617					$	1,565					$	2,166

 

(1)Purchase obligations represent non-cancelable contractual obligations at December 31, 2021.  In addition, the Company had approximately $1 billion of open purchase orders for which the related goods or services had not been received.  Although open purchase orders are considered enforceable and legally binding, their terms generally allow us the option to cancel, reschedule and adjust our requirements based on our business needs prior to the delivery of goods or performance of services.

(2)Operating leases represent multi-year obligations for rental of facilities and equipment.

(3)Pension and postretirement benefit payments includes expected payments to participants out of plan assets and corporate assets. The benefit payments are based on actuarial estimates using current assumptions for discount rates, expected return on long-term assets and rate of compensation increases. The Company expects to contribute $3 million to pension plan investments in 2022.

(4)Interest payments on the Senior Notes are based on interest rates in effect as of December 31, 2021 and are calculated on debt with maturities that extend to 2028. Interest payments for the Revolving Credit Facility and Other Borrowings are based on contractual terms and the Company’s current interest rates.

(5)Shareholder dividends are subject to approval by the Company’s Board of Directors, currently at an annual rate of approximately $111 million.

(6)Contingent consideration represents the total remaining payable to General Electric (GE) resulting from the 2019 acquisition of GE Transportation. The timing of the cash payments to GE is directly related to the future timing of tax benefits received by the Company and could change.

The above table does not reflect uncertain tax positions of $32 million, the timing of which are uncertain. Refer to Note 11 of the “Notes to Consolidated Financial Statements” for additional information on uncertain tax positions. Additionally, the Company arranges for certain types of bank guarantees and letters of credit, such as performance bonds, bid bonds and financial guarantees, that are issued by certain banks and insurance companies to support customer contracts. At December 31, 2021, the total value of these bank guarantees and letters of credit were $791 million and expire on various dates through 2039. Amounts include interest payments based on contractual terms and the Company’s current interest rate.

Forward Looking Statements

We believe that all statements other than statements of historical facts included in this report, including certain statements under “Business” and “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” may constitute forward-looking statements. We have based these forward-looking statements on our current expectations and projections about future events. Although we believe that our assumptions made in connection with the forward-looking statements are reasonable, we cannot assure that our assumptions and expectations are correct.

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These forward-looking statements are subject to various risks, uncertainties and assumptions about us, including, among other things:

Economic and industry conditions

•prolonged unfavorable economic and industry conditions in the markets served by us, including North America, South America, Europe, Australia, Asia and Africa;

•decline in demand for freight cars, locomotives, passenger transit cars, buses and related products and services;

•reliance on major original equipment manufacturer customers;

•original equipment manufacturers’ program delays;

•demand for services in the freight and passenger rail industry;

•demand for our products and services;

•orders either being delayed, canceled, not returning to historical levels, or reduced or any combination of the foregoing;

•consolidations in the rail industry;

•continued outsourcing by our customers;

•industry demand for faster and more efficient braking equipment;

•fluctuations in interest rates and foreign currency exchange rates;

•availability of credit; or

•changes in market consensus as to what attributes are required for projects to be considered "green" or "sustainable" or negative perceptions regarding determinations in such regard with respect to our Green Finance Framework;

Operating factors

•supply disruptions;

•technical difficulties;

•changes in operating conditions and costs;

•increases in raw material costs;

•successful introduction of new products;

•performance under material long-term contracts;

•labor relations;

•the outcome of our existing or any future legal proceedings, including litigation involving our principal customers and any litigation with respect to environmental matters, asbestos-related matters, pension liabilities, warranties, product liabilities, competition and anti-trust matters or intellectual property claims;

•completion and integration of acquisitions; or

•the development and use of new technology;

Competitive factors

•the actions of competitors; or

•the outcome of negotiations with partners, suppliers, customers or others;

Political/governmental factors

•political stability in relevant areas of the world, including the impacts of war and conflicts;

•future regulation/deregulation of our customers and/or the rail industry;

•levels of governmental funding on transit projects, including for some of our customers;

•political developments and laws and regulations, including those related to Positive Train Control;

•federal and state income tax legislation; or

•the outcome of negotiations with governments;

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COVID-19 factors

•the severity and duration of the pandemic;

•deterioration of general economic conditions;

•shutdown of one or more of our operating facilities;

•supply chain and sourcing disruptions;

•ability of our customers to pay timely for goods and services delivered;

•health of our employees;

•ability to retain and recruit talented employees; or

•difficulty in obtaining debt or equity financing.

Statements in this 10-K apply only as of the date on which such statements are made, and except as required by law, we undertake no obligation to update any statement to reflect events or circumstances after the date on which the statement is made or to reflect the occurrence of unanticipated events.

Critical Accounting Estimates

The preparation of the financial statements in accordance with generally accepted accounting principles requires Management to make judgments, estimates and assumptions regarding uncertainties that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities and the reported amounts of revenues and expenses. Areas of uncertainty that require judgments, estimates and assumptions include the accounting for allowance for doubtful accounts, inventories, business combinations, the testing of goodwill and other intangibles for impairment, warranty reserves, stock based compensation, income taxes, and revenue recognition. Management uses historical experience and all available information to make these judgments and estimates, and actual results will inevitably differ from those estimates and assumptions that are used to prepare the Company’s financial statements at any given time. Despite these inherent limitations, Management believes that Management’s Discussion and Analysis of Financial Condition and Results of Operations (MD&A) and the financial statements and related footnotes provide a meaningful and fair perspective of the Company.

A summary of the Company’s significant accounting policies is included in Note 2 in the “Notes to Consolidated Financial Statements” included in Part IV, Item 15 of this report. Management believes that the application of these policies on a consistent basis enables the Company to provide the users of the financial statements with useful and reliable information about the Company’s operating results and financial condition.

Accounts Receivable and Allowance for Doubtful Accounts:

Description The Company provides an allowance for doubtful accounts to cover anticipated losses on uncollectible accounts receivable.

Judgments and Uncertainties  The allowance for doubtful accounts receivable reflects our best estimate of expected losses inherent in our receivable portfolio determined on the basis of historical experience, relevant credit forecast information, changes to customer's solvency and other currently available evidence.

Effect if Actual Results Differ From Assumptions  If our estimates regarding the collectability of troubled accounts, and/or our actual losses within our receivable portfolio exceed our estimated losses, we may be exposed to the expense of increasing our allowance for doubtful accounts and loss of cash flows.

Inventories:

Description Inventories are stated at the lower of cost or net realizable value and are reviewed to ensure that an adequate provision is recognized for excess, slow moving and obsolete inventories, and net realizable value reserves.

Judgments and Uncertainties Cost is determined under the first-in, first-out (FIFO) method. Inventory costs include material, labor and overhead. The Company compares inventory components to prior year sales history and current backlog and anticipated future requirements. To the extent that inventory parts exceed estimated usage and demand, a reserve is recognized to reduce the carrying value of inventory. Also, specific reserves are established for known inventory obsolescence, a decline in market value, or loss of a customer with specific inventory.

Effect if Actual Results Differ From Assumptions If the market value or demand for our products were to decrease due to changing market conditions, the Company could be at risk of incurring write-downs to adjust inventory value to a net realizable value lower than stated cost. If our estimates regarding sales and backlog requirements are inaccurate, we may be exposed to the expense of increasing our reserves for slow moving and obsolete inventory.

42

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Business Combinations:

Description The Company accounts for business acquisitions in accordance with ASC 805, Business Combinations, which requires the purchase price of the acquired business to be allocated to tangible and intangible assets acquired and liabilities assumed based on the respective fair values. The amount of purchase price which is in excess of the fair values of assets acquired and liabilities assumed is recognized as goodwill.

Judgments and Uncertainties Discounted cash flow models are used to estimate the fair values of acquired contract backlog, customer relationships, intellectual property intangibles and trade names, and below-market customer contract liabilities. The significant assumptions used to estimate the value of the intangible assets and below-market customer contract liabilities included revenue growth rates, projected profit margins, discount rates, royalty rates, customer attrition rates, revenue obsolescence rates and market participant profit margins. These significant assumptions are forward-looking and could be affected by future economic and market conditions.

Effect if Actual Results Differ From Assumptions Different assumptions may result in materially different values for assets acquired and liabilities assumed, which may impact the Company's financial position and future results of operations.

Goodwill and Indefinite-Lived Intangibles:

Description Goodwill and indefinite-lived intangibles are required to be tested for impairment at least annually. The Company performs its annual impairment test during the fourth quarter and more frequently when indicators of impairment are present. The Company reviews goodwill for impairment at the reporting unit level. The Company has identified three reporting units for purposes of testing goodwill for impairment. Two reporting units exist within the Freight segment and the Transit segment is also a reporting unit. The evaluation of impairment involves comparing the current fair value of the business to the recorded value (including goodwill).

Judgments and Uncertainties A number of significant assumptions and estimates are involved in the application of the impairment test, including the identification of macroeconomic conditions, industry and market considerations, cost factors, overall financial performance, Wabtec specific events and share price trends and making the assessment on whether each relevant factor will impact the impairment test positively or negatively and the magnitude of any such amount.

Effect if Actual Results Differ From Assumptions Management considers historical experience and all available information at the time the fair values of its reporting units are estimated. However, actual amounts realized may differ from those used to evaluate the impairment of goodwill. If actual results are not consistent with our assumptions and judgments used in estimating future cash flows and asset fair values, we may be exposed to impairment losses that could be material to our results of operations. At December 31, 2021, all three of the Company’s reporting units had fair values which were substantially in excess of their carrying values. See Note 2 in the “Notes to Consolidated Financial Statements” included in Part IV, Item 15 of this report for additional discussion regarding impairment testing.

Warranty Reserves:

Description The Company provides warranty reserves to cover expected costs from repairing or replacing products with durability, quality or workmanship issues occurring during established warranty periods.

Judgments and Uncertainties In general, reserves are provided for as a percentage of sales, based on historical experience. In addition, specific reserves are established for known warranty issues and their estimable losses.

Effect if Actual Results Differ From Assumptions If actual results are not consistent with the assumptions and judgments used to calculate our warranty liability, the Company may be exposed to the expense of increasing our reserves for warranty expense.

Stock-based Compensation:

Description The Company has issued incentive stock units to eligible employees that vest upon attainment of certain cumulative three-year performance goals. The program is structured as a rolling three-year plan; each year starts a new three-year performance cycle with the most recently completed cycle being 2019-2021. No incentive stock units will vest for performance below the three-year cumulative threshold.  The Company utilizes an economic profit measure for this performance goal.  Economic profit is a measure of the extent to which the Company produces financial results in excess of its cost of capital.  Based on the Company’s achievement of the threshold and three-year cumulative performance, the stock units vested can range from 0% to 200% of the shares granted.

Judgments and Uncertainties Significant judgments and estimates are used in determining the estimated three-year performance, which is then used to estimate the total shares expected to vest over the three year vesting cycle and corresponding expense based on the grant date fair value of the award.  When determining the estimated three-year performance, the Company utilizes a combination of historical actual results, budgeted results and forecasts. Upon the initial grant of a performance cycle, the Company estimates the three-year performance at 100%.  As actual performance results for a cycle begin to accumulate and the Company completes its budgeting and forecasting cycles the performance estimates are updated.  These judgments and estimates are reviewed and updated on a quarterly basis.

43

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Effect if Actual Results Differ From Assumptions If assumptions used in determining the estimated three-year performance change significantly, stock-based compensation expense related to the unvested incentive stock awards can fluctuate from period to period.  

Income Taxes:

Description Wabtec records an estimated liability or benefit for income and other taxes based on what it determines will likely be paid in various tax jurisdictions in which it operates in accordance with ASC 740-10 Accounting for Income Taxes and Accounting for Uncertainty in Income Taxes.

Judgments and Uncertainties The estimate of our tax obligations are uncertain because Management must use judgment to estimate the exposures associated with our various filing positions, as well as realization of our deferred tax assets. ASC 740-10 establishes a recognition and measurement threshold to determine the amount of tax benefit that should be recognized related to uncertain tax positions.

Effect if Actual Results Differ From Assumptions Management uses its best judgment in the determination of these amounts. However, the liabilities ultimately realized and paid are dependent on various matters including the resolution of the tax audits in the various affected tax jurisdictions and may differ from the amounts recorded. An adjustment to the estimated liability would be recorded through income in the period in which new information changes the expected outcome of an uncertain tax position. A deferred tax valuation allowance is provided when it is more likely than not that some portion or all of the deferred tax assets will not be realized.

Revenue Recognition:

Description Revenue is recognized in accordance with ASC 606 Revenue from Contracts with Customers. Company recognizes a portion of its revenues on long-term customer agreements involving the design and production of highly engineered products that require revenue to be recognized over time because these products have no alternative use without significant economic loss and the agreements contain an enforceable right to payment including a reasonable profit margin from the customer in the event of contract termination. Generally, the Company uses an input method for determining the amount of revenue, cost and gross margin to recognize over time for these customer agreements. The input methods used for these agreements include costs of material and labor, both of which give an accurate representation of the progress made toward complete satisfaction of a particular performance obligation.

Judgments and Uncertainties Accounting for long-term customer agreements involves a judgmental process of estimating the total sales and costs for each contract, which results in the development of estimated profit margin percentages. Contract estimates related to long-term projects are based on various assumptions to project the outcome of future events that could span several years. These assumptions include cost of materials; labor availability and productivity; complexity of the work to be performed; and the performance of suppliers, customers and subcontracts that may be associated with the contract. Factors that influence these estimates include inflationary trends, technical and schedule risk, internal and subcontractor performance trends, business volume assumptions, asset utilization, and anticipated labor agreements. Generally, pricing is defined in our contracts but may include an estimate of variable consideration when required by the terms of the individual customer contract. Types of variable consideration that the Company typically has include volume discounts, prompt payment discounts, liquidating damages, and performance bonuses.

Effect if Actual Results Differ From Assumptions Should market conditions and customer demands dictate changes to our standard shipping terms, the Company may be impacted by longer than typical revenue recognition cycles. The development of expected contract costs and contract profit margin percentages involves procedures and personnel in all areas that provide financial or production information on the status of contracts. Due to the significance of judgments in the estimation process, it is likely that materially different revenue amounts could be recorded if we used different assumptions or if the underlying circumstances were to change. Changes in underlying assumptions/estimates, supplier performance, or circumstances may adversely or positively affect financial performance in future periods. Some of our contracts are expected to be completed in a loss position. Provisions are made currently for estimated losses on uncompleted contracts.

Item 7A.			QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

All market risk sensitive instruments were entered into for non-trading purposes.

Interest Rate Risk

In the ordinary course of business, Wabtec is exposed to risks that increases in interest rates may adversely affect funding costs associated with its available variable-rate debt facilities. At December 31, 2021, the Company's interest risk related to variable-rate debt is limited to the amounts borrowed under the Multi-Currency Revolving credit facility. At

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December 31, 2021, the Company had no outstanding variable rate debt. The Company’s variable rate debt represented 15% of total debt at December 31, 2020.

Foreign Currency Exchange Rate Risk

The Company is exposed to certain risks associated with changes in foreign currency exchange rates to the extent our operations are conducted in currencies other than the U.S. dollar. To reduce the impact of changes in currency exchange rates, the Company has periodically entered into foreign currency forward contracts. Refer to “Financial Derivatives and Hedging Activities” in Notes 2, 17 and 20 of “Notes to Consolidated Financial Statements” included in Part IV, Item 15 of this report for more information regarding foreign currency exchange risk and sales by geographic area.

Item 8.			FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

Financial statements and supplementary data are set forth in Item 15 of Part IV hereof.

Item 9.			CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE

There have been no disagreements with our independent registered public accountants.

Item 9A.			CONTROLS AND PROCEDURES

Evaluation of Disclosure Controls and Procedures

Wabtec’s principal executive officer and its principal financial officer have evaluated the effectiveness of Wabtec’s “disclosure controls and procedures,” (as defined in Exchange Act Rule 13a-15(e)) as of December 31, 2021. Based upon their evaluation, the principal executive officer and principal financial officer concluded that Wabtec’s disclosure controls and procedures are effective to provide reasonable assurance that information required to be disclosed by Wabtec in the reports filed or submitted by it under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms, and to provide reasonable assurance that information required to be disclosed by Wabtec in such reports is accumulated and communicated to Wabtec’s Management, including its principal executive officer and principal finance officer, as appropriate to allow timely decisions regarding required disclosure.

Changes in Internal Control over Financial Reporting

There was no change in Wabtec’s “internal control over financial reporting” (as defined in Rule 13a-15(f) under the Exchange Act) that occurred during the quarter ended December 31, 2021, that has materially affected, or is reasonably likely to materially affect, Wabtec’s internal control over financial reporting. Management’s annual report on internal control over financial reporting and the attestation report of the registered public accounting firm are included in Part IV, Item 15 of this report.

Management’s Report on Internal Control over Financial Reporting

Management’s Report on Internal Control Over Financial Reporting appears on page 51 and is incorporated by reference herein.

Report of Independent Registered Public Accounting Firm on Internal Control over Financial Reporting

Ernst & Young LLP's attestation report on internal control over financial reporting appears on page 54 and is incorporated by reference herein.

Item 9B.			OTHER INFORMATION

None.

Item 9C.			DISCLOSURE REGARDING FOREIGN JURISDICTIONS THAT PREVENT INSPECTIONS

Not applicable.

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PART III

Items 10 through 14.

In accordance with the provisions of General Instruction G(3) to Form 10-K, the information required by Item 10 (Directors, Executive Officers and Corporate Governance), Item 11 (Executive Compensation), Item 12 (Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters), Item 13 (Certain Relationships and Related Transactions, and Director Independence) and Item 14 (Principal Accounting Fees and Services) is incorporated herein by reference from the Company’s definitive Proxy Statement for its Annual Meeting of Stockholders to be held on May 18, 2022, except for the Equity Compensation Plan Information required by Item 12, which is set forth in the table below. The definitive Proxy Statement will be filed with the Securities and Exchange Commission not later than 120 days after December 31, 2021. Information relating to the executive officers of the Company is set forth in Part I.

Wabtec has adopted a Code of Business Conduct and Ethics which is applicable to all of our employees, including our executive officers. This Code of Business Conduct and Ethics is posted on our website at www.wabteccorp.com. In the event that we make any amendments to or waivers from this code, we will disclose the amendment or waiver and the reasons for such on our website.

This table provides aggregate information as of December 31, 2021 concerning equity awards under Wabtec’s compensation plans and arrangements.

Plan Category						(a) Number of securities to be issued upon exercise of outstanding options, warrants and rights						(b) Weighted-average exercise price of outstanding options warrants and rights						(c) Number of securities remaining available for future issuance under equity compensation plans (excluding securities reflected in column (a))
Equity compensation plans approved by shareholders						1,267,169						$	75.40					6,399,200
Equity compensation plans not approved by shareholders						—						—						—
Total						1,267,169						$	75.40					6,399,200

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PART IV

Item 15.			EXHIBITS AND FINANCIAL STATEMENT SCHEDULES

The financial statements, financial statement schedules and exhibits listed below are filed as part of this annual report: 

						Page
(1)			Financial Statements and Reports on Internal Control
			Management’s Reports to Westinghouse Air Brake Technologies Corporation Shareholders			51
			Report of Independent Registered Public Accounting Firm (PCAOB ID: 42, Pittsburgh, Pennsylvania)			52
			Report of Independent Registered Public Accounting Firm on Internal Control Over Financial Reporting			54
			Consolidated Balance Sheets as of December 31, 2021 and 2020			55
			Consolidated Statements of Income for the three years ended December 31, 2021, 2020 and 2019			56
			Consolidated Statements of Comprehensive Income for the three years ended December 31, 2021, 2020 and 2019			57
			Consolidated Statements of Cash Flows for the three years ended December 31, 2021, 2020 and 2019			58
			Consolidated Statements of Shareholders’ Equity for the three years ended December 31, 2021, 2020 and 2019			59
			Notes to Consolidated Financial Statements			60
(2)			Financial Statement Schedules
			Schedule II—Valuation and Qualifying Accounts			90
						Filing Method
			Exhibits
2.1			Shareholder's Agreement among Financiere Faiveley S.A., FW Acquisition, LLC, and Wabtec Corporation dated as of October 6, 2015			13
2.2			Amendment No. 1 to Shareholder's Agreement among Financiere Faiveley S.A., Famille Faiveley Participations, Francois Faiveley, Erwan Faiveley, and Wabtec Corporation dated as of dated as of October 24, 2016			14
2.3			Employee Matters Agreement among General Electric Company, Transportation Systems Holdings Inc., Westinghouse Air Brake Technologies Corporation and Wabtec US Rail, Inc.			21
2.4**			Tax Matters Agreement among General Electric Company, Transportation Systems Holdings Inc., Westinghouse Air Brake Technologies Corporation and Wabtec US Rail, Inc.			21
3.1			Restated Certificate of Incorporation of the Company dated January 30, 1995, as amended December 31, 2003			9
3.2			Certificate of Amendment of Restated Certificate of Incorporation dated May 14, 2013			11
3.3			Amended and Restated By-Laws of the Company, effective February 11, 2021			8
3.4			Certificate of Amendment to Restated Certificate of Incorporation dated November 19, 2018			22
3.5			Certificate of Designations of Series A Non-Voting Convertible Preferred Stock of Westinghouse Air Brake Technologies Corporation, dated February 22, 2019			21
4.1			Indenture, dated August 8, 2013 by and between the Company and Wells Fargo, National Association, as Trustee			12
4.2			First Supplemental Indenture, dated August 8, 2013, by and between the Company and Wells Fargo Bank, National Association, as Trustee			12
4.3			Form of 4.375% Senior Note due 2023 (included in Exhibit 4.2)			12
4.4			Second Supplemental Indenture, dated November 3, 2016, by and among Westinghouse Air Brake Technologies Corporation, the subsidiary guarantors named therein and Wells Fargo Bank, National Association, as Trustee			15
4.5			Third Supplemental Indenture, dated November 3, 2016, by and among Westinghouse Air Brake Technologies Corporation, the subsidiary guarantors named therein and Wells Fargo Bank, National Association, as Trustee			15
4.6			Form of 3.450% Senior Note due 2026 (included in Exhibit 4.5)			15
4.7			Fourth Supplemental Indenture, dated February 9, 2017, by and among Westinghouse Air Brake Technologies Corporation, the subsidiary guarantors named therein and Wells Fargo Bank, National Association, as Trustee			16

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4.8			Fifth Supplemental Indenture, dated April 28, 2017, by and among Westinghouse Air Brake Technologies Corporation, the subsidiary guarantors named therein and Wells Fargo Bank, National Association, as Trustee			17
4.9			Sixth Supplemental Indenture, dated June 21, 2017, by and among Westinghouse Air Brake Technologies Corporation, the subsidiary guarantors named therein and Wells Fargo Bank, National Association, as Trustee.			18
4.10			Seventh Supplemental Indenture, dated June 8, 2018, by and among Westinghouse Air Brake Technologies Corporation, the subsidiary guarantors named therein and Wells Fargo Bank, National Association, as Trustee			19
4.11			Eighth Supplemental Indenture, dated June 29, 2018, by and among Westinghouse Air Brake Technologies Corporation, the subsidiary guarantors named therein and Wells Fargo Bank, National Association, as Trustee			19
4.12			Ninth Supplemental Indenture, dated September 14, 2018, by and among the Company, the guarantors party thereto and Wells Fargo Bank, National Association, as Trustee.			20
4.13			Form of 1.150% Senior Note due 2024 (included in Exhibit 4.12)			1
4.14			Form of 4.700% Senior Note due 2028 (included in Exhibit 4.12)			1
4.15			Tenth Supplemental Indenture, dated June 6, 2019, by and among the Company, the guarantors party thereto and Wells Fargo Bank, National Association, as Trustee			23
4.16			Eleventh Supplement Indenture, dated June 29, 2020, by and among the Company, the guarantors party thereto and Wells Fargo Bank, National Association, as Trustee			25
4.17			Form of 3.200% Senior Note due 2025 (included in Exhibit 4.16)			1
4.18			Description of Wabtec Common Stock registered pursuant to Section 12 of the Securities Act of 1934			1
4.19			Base Indenture, dated as of June 3, 2021, among Wabtec Transportation Netherlands B.V., as issuer, Westinghouse Air Brake Technologies Corporation, as guarantor, and U.S. Bank National Association, as Trustee			27
4.20			First Supplemental Indenture, dated as of June 3, 2021, among Wabtec Transportation Netherlands B.V., as issuer, Westinghouse Air Brake Technologies Corporation, as guarantor, and U.S. Bank National Association, as Trustee			27
4.21			Form of 1.250% Notes due 2027 (included in Exhibit 4.20 hereof).			27
10.1			Agreement of Sale and Purchase of the North American Operations of the Railway Products Group, an operating division of American Standard Inc. (now known as Trane), dated as of 1990 between Rail Acquisition Corp. and American Standard Inc. (only provisions on indemnification are reproduced)			2
10.2			Letter Agreement (undated) between the Company and American Standard Inc. (now known as Trane) on environmental costs and sharing			2
10.3			Purchase Agreement dated as of June 17, 1992 among the Company, Schuller International, Inc., Manville Corporation and European Overseas Corporation (only provisions on indemnification are reproduced)			2
10.4			Westinghouse Air Brake Company 1995 Non-Employee Directors’ Fee and Stock Option Plan, as amended and restated*			4
10.5			Westinghouse Air Brake Technologies Corporation 2000 Stock Incentive Plan, as Westinghouse Air Brake Technologies Corporation 2000 Stock Incentive Plan, as amended * *			33
10.6			Employment Agreement with Albert J. Neupaver, dated February 1, 2006 *			3
10.7			Form of Restricted Stock Agreement *			10
10.8			Westinghouse Air Brake Technologies Corporation 2011 Stock Incentive Plan as amended and restated, as further amended*			5
10.9			Stock Purchase Agreement, by and among the Company, Standard Car Truck Company and Robclif, Inc., dated September 12, 2008			6
10.10			Form of Employment Continuation Agreement entered into by the Company with Rafael Santana, David L. DeNinno, Patrick D. Dugan, Nicole Theophilus, Michael E. Fetsko, and John A Mastalerz Jr.*			7
10.11			Wabtec Corporation Deferred Compensation Plan for Executive Officers and Directors as adopted December 10, 2009 *			10
10.12			Form of Agreement for Nonstatutory Stock Option under the 1995 Non-Employee Directors’ Fee and Stock Option Plan, as amended and restated*			10
10.13			Form of Agreement for Nonstatutory Stock Options under 2000 Stock Incentive Plan, as amended *			10
10.14			Form of Agreement for Nonstatutory Stock Options under 2011 Stock Incentive Plan as amended and restated*			10

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10.15			Credit Agreement, dated as of June 8, 2018, by and among Westinghouse Air Brake Technologies Corporation, Wabtec Netherlands B.V. and the other borrowing subsidiaries party thereto, the lenders party thereto and PNC Bank, National Association, as Administrative Agent, Goldman Sachs Bank USA, HSBC Bank USA, N.A., JPMorgan Chase Bank, N.A., Merrill Lynch, Pierce, Fenner & Smith Incorporated, PNC Capital Markets LLC and TD Securities (USA) LLC, as Joint Lead Arrangers and Joint Bookrunners, Goldman Sachs Bank USA and PLC Capital Markets LLC, as Syndication Agents, and Bank of America, N.A., HSBC Bank USA, N.A., JPMorgan Chase Bank, N.A., and TD Securities			19
10.16			First Amendment to Credit Agreement, dated as of February 22, 2019, among Westinghouse Air Brake Technologies Corporation, Wabtec Netherlands B.V. and the other borrowing subsidiaries party thereto, the lenders party thereto and PNC Bank, National Association, as Administrative Agent			22
10.17			Second Amendment to Credit Agreement, dated as of April 22, 2021, among Westinghouse Air Brake Technologies Corporation, Wabtec Netherlands B.V. and the other borrowing subsidiaries party thereto, the lenders party thereto and, PNC Bank, National Association, as Administrative Agent			28
10.18			Third Amendment to Credit Agreement, dated as of December 29, 2021, among Westinghouse Air Brake Technologies Corporation, Wabtec Netherlands B.V. and the other borrowing subsidiaries party thereto, the lenders party thereto, and PNC Bank, National Association, as Administrative Agent			29
10.19			Westinghouse Air Brake Technologies Corporation Deferred Compensation Plan for Executives, dated October 21, 2021			30
10.20			Separation Agreement between Stephane Rambaud-Measson and Westinghouse Air Brake Technologies Corporation, dated as of February 13, 2019			24
10.21			Transition Agreement between Raymond T. Betler and Westinghouse Air Brake Technologies Corporation, dated as of April 24, 2019			24
10.22			Severance Agreement of Rafael Santana dated as of May 26, 2020			26
10.23			Transition Agreement of Scott Wahlstrom dated as of November 25, 2020			32
10.24			Employment Continuation Agreement of John A. Olin, dated September 14, 2021			31
10.25			Transition Agreement of Patrick A. Dugan, dated as of September 9, 2021			31
21.0			List of subsidiaries of the Company			1
22.0			List of Subsidiary Guarantors			1
23.1			Consent of Ernst & Young LLP			1
31.1			Rule 13a-14(a)/15d-14(a) Certifications			1
31.2			Rule 13a-14(a)/15d-14(a) Certifications			1
32.1			Section 1350 Certifications			1
101.INS			XBRL Instance Document.			1
101.SCH			XBRL Taxonomy Extension Calculation Linkbase Document			1
101.CAL			XBRL Taxonomy Extension Calculation Linkbase Document			1
101.DEF			XBRL Taxonomy Extension Definition Linkbase Document.			1
101.LAB			XBRL Taxonomy Extension Label Linkbase Document			1
101.PRE			XBRL Taxonomy Extension Presentation Linkbase Document			1
104			XBRL Cover Page Interactive Data (embedded within the Inline XBRL document)			1

 

1			Filed herewith.
2			Filed as an exhibit to the Company’s Registration Statement on Form S-1 (File No. 033-90866).
3			Filed as an exhibit to the Company’s Quarterly Report on Form 10-Q (File No. 033-90866) for the period ended March 31, 2006.
4			Filed as an Annex to the Company’s Schedule 14A Proxy Statement (File No. 033-90866) filed on March 31, 2017.
5			Filed as an exhibit to the Company’s Current Report on Form 8-K (File No. 033-90866) filed on January 20,2021.
6			Filed as an exhibit to the Company’s Quarterly Report on Form 10-Q (File No. 033-90866) for the period ended September 30, 2008.
7			Filed as an exhibit to the Company’s Current Report on Form 8-K (File No. 033-90866) dated July 2, 2009.

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8			Filed as an exhibit to the Company’s Current Report on Form 8-K (File No. 033-90866), dated February 18, 2021.
9			Filed as an exhibit to the Company’s Annual Report on Form 10-K (File No. 033-90866), dated February 25, 2011.
10			Filed as an exhibit to the Company’s Annual Report on Form 10-K (File No. 033-90866), dated February 22, 2013.
11			Filed as an exhibit to the Company’s Current Report on Form 8-K (File No. 033-90866), dated September 9, 2019.
12			Filed as an exhibit to the Company’s Current Report on Form 8-K (File No. 033-90866), dated August 8, 2013.
13			Filed as an exhibit to the Company’s Current Report on Form 8-K (File No. 033-90866), dated October 6,2015.
14			Filed as an exhibit to the Company's Current Report on Form 8-K (File No. 033-90866), dated October 26, 2016.
15			Filed as an exhibit to the Company's Current Report on Form 8-K (File No. 033-90866), dated November 3, 2016.
16			Filed as an exhibit to the Company's Current Report on Form 10-K (File No. 033-90866), dated February 28, 2017.
17			Filed as an exhibit to the Company's Quarterly Report on Form 10-Q (File No. 033-90866), for the period ended March 31, 2017.
18			Filed as an exhibit to the Company's Registration Statement on Form S-4 (File No. 0333-219354).
19			Filed as an exhibit to the Company's Quarterly Report on Form 10-Q (File No. 033-90866), for the period ended June 30, 2018.
20			Filed as an exhibit to the Company’s Current Report on Form 8-K (File No. 033-90866), dated September 14, 2018.
21			Filed as an exhibit to the Company’s Current Report on Form 8-K (File No. 033-90866), dated February 25, 2019.
22			Filed as an exhibit to the Company’s Annual Report on Form 10-K (File No. 033-90866), dated February 27, 2019.
23			Filed as an exhibit to the Company’s Quarterly Report on Form 10-Q (File No. 033-90866), dated August 1, 2019.
24			Filed as an exhibit to the Company's Quarterly Report on Form 10-Q (File No. 033-90866), dated May 9, 2019.
25			Filed as an exhibit to the Company's Current Report on Form 8-K (File No. 033-90866), dated June 29, 2020.
26			Filed as an exhibit to the Company's Current Report on Form 8-K (File No 033-90866), dated May 7, 2020.
27			Filed as an exhibit to the Company's Current Report on Form 8-K (File No 033-90866), dated June 2, 2021
28			Filed as an exhibit to the Company's Current Report on Form 8-K (File No 033-90866), dated April 28, 2021
29			Filed as an exhibit to the Company's Current Report on Form 8-K (File No 033-90866), dated January 5, 2022
30			Filed as an exhibit to the Company's Current Report on Form 8-K (File No 033-90866), dated October 21, 2021
31			Filed as an exhibit to the Company's Quarterly Report on Form 10-Q (File No. 033-90866), for the period ended September 30, 2021.
32			Filed as an exhibit to the Company’s Annual Report on Form 10-K (File No. 033-90866), dated February 19, 2021.
33			Filed as an exhibit to the Company's Registration Statement on Form S-8 (File No. 033-90866), dated March 2, 2012.

*			Management contract or compensatory plan.
**			Certain schedules have been omitted pursuant to Item 601(b)(2) of Regulation S-K. Wabtec hereby undertakes to furnish supplementally, copies of any of the omitted schedules upon request by the SEC.

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MANAGEMENT’S REPORTS TO WABTEC SHAREHOLDERS

Management’s Report on Financial Statements and Practices

The accompanying consolidated financial statements of Westinghouse Air Brake Technologies Corporation and subsidiaries (the “Company”) were prepared by Management, which is responsible for their integrity and objectivity. The statements were prepared in accordance with U.S. generally accepted accounting principles and include amounts that are based on Management’s best judgments and estimates. The other financial information included in the 10-K is consistent with that in the financial statements.

Management also recognizes its responsibility for conducting the Company’s affairs according to the highest standards of personal and corporate conduct. This responsibility is characterized and reflected in key policy statements issued from time to time regarding, among other things, conduct of its business activities within the laws of host countries in which the Company operates and potentially conflicting outside business interests of its employees. The Company maintains a systematic program to assess compliance with these policies.

Management’s Report on Internal Control over Financial Reporting

Management is responsible for establishing and maintaining adequate internal control over financial reporting for the Company. In order to evaluate the effectiveness of internal control over financial reporting, as required by Section 404 of the Sarbanes-Oxley Act, Management has conducted an assessment, including testing, using the criteria in Internal Control-Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (2013 Framework) (COSO). The Company’s system of internal control over financial reporting is designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

Management has excluded Nordco from its assessment of internal controls over financial reporting as of December 31, 2021 because the Company acquired Nordco effective March 31, 2021. Nordco is a subsidiary whose total assets and customer revenues represents 2.5% and 1.8%, respectively, of the related consolidated financial statement amounts as of and for the year ended December 31, 2021.

Based on its assessment, Management has concluded that the Company maintained effective internal control over financial reporting as of December 31, 2021, based on criteria in Internal Control-Integrated Framework issued by the COSO. The effectiveness of the Company’s internal control over financial reporting as of December 31, 2021, has been audited by Ernst & Young LLP, independent registered public accounting firm, as stated in their report which is included herein.

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REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Shareholders and the Board of Directors of Westinghouse Air Brake Technologies Corporation

Opinion on the Financial Statements

We have audited the accompanying consolidated balance sheets of Westinghouse Air Brake Technologies Corporation (the Company) as of December 31, 2021 and 2020, the related consolidated statements of income, comprehensive income, cash flows and shareholders' equity for each of the three years in the period ended December 31, 2021, and the related notes and financial statement schedule listed in the Index at Item 15.(2) (collectively referred to as the “consolidated financial statements”). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company at December 31, 2021 and 2020, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 2021, in conformity with U.S. generally accepted accounting principles.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the Company's internal control over financial reporting as of December 31, 2021, based on criteria established in Internal Control-Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (2013 framework), and our report dated February 17, 2022 expressed an unqualified opinion thereon.

Basis for Opinion

These financial statements are the responsibility of the Company's management. Our responsibility is to express an opinion on the Company’s financial statements based on our audits. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. Our audits included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements. We believe that our audits provide a reasonable basis for our opinion.

Critical Audit Matter

The critical audit matter communicated below is a matter arising from the current period audit of the financial statements that was communicated or required to be communicated to the audit committee and that: (1) relates to accounts or disclosures that are material to the financial statements and (2) involved our especially challenging, subjective or complex judgments. The communication of a critical audit matter does not alter in any way our opinion on the consolidated financial statements, taken as a whole, and we are not, by communicating the critical audit matter below, providing a separate opinion on the critical audit matter or on the accounts or disclosures to which it relates.

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			Over Time Revenue Recognition for Long-Term Contracts
Description of the Matter			As described in Note 2 to the consolidated financial statements, the Company has long-term customer arrangements involving the design and production of highly engineered products that require revenue to be recognized over time. The Company uses input-based measures for determining the amount of revenue, cost and gross margin to recognize over time for these customer arrangements. The input methods used for these arrangements include costs of material and labor. During the year ended December 31, 2021, a material amount of the Company's total revenues were derived from performance obligations that are satisfied over time. Auditing the Company's measurement of revenue recognized over time on long-term contracts is especially challenging because it involves subjective management assumptions regarding the estimated remaining costs of the long-term contract that could span several years. These assumptions could be impacted by the future cost of materials, labor availability and productivity, complexity of the work to be performed, and the performance of suppliers, customers and subcontractors that may be associated with the contract and may be affected by future market or economic conditions.
How We Addressed the Matter in Our Audit			We obtained an understanding, evaluated the design and tested the operating effectiveness of controls over the Company's process to recognize revenue over time on long-term contracts, including controls over management’s review of the significant underlying assumptions described above. Our audit procedures also included, among others, evaluating the significant assumptions and the accuracy and completeness of the underlying data used in management's calculations. This included, for example, inspection of the executed contracts and testing management's cost estimates by comparing the inputs to the Company’s historical data or experience for similar contracts, the performance of sensitivity analysis and the performance of retrospective review analysis of prior management cost estimates to actual costs incurred for completed contracts. In addition, for a sample of contracts, we involved our construction and engineering specialists to assist in our evaluation of management’s cost estimates at completion.

/s/ Ernst & Young LLP

We have served as the Company's auditor since 2002.

Pittsburgh, Pennsylvania

February 17, 2022

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REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Shareholders and the Board of Directors of Westinghouse Air Brake Technologies Corporation

Opinion on Internal Control over Financial Reporting

We have audited Westinghouse Air Brake Technologies Corporation’s internal control over financial reporting as of December 31, 2021, based on criteria established in Internal Control-Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (2013 framework) (the COSO criteria). In our opinion, Westinghouse Air Brake Technologies Corporation (the Company) maintained, in all material respects, effective internal control over financial reporting as of December 31, 2021, based on the COSO criteria.

As indicated in the accompanying Management’s Report on Internal Control over Financial Reporting, management’s assessment of and conclusion on the effectiveness of internal control over financial reporting did not include the internal controls of Nordco, which is included in the 2021 consolidated financial statements of the Company and constituted 2.5% of total assets as of December 31, 2021 and 1.8% of net sales for the year then ended. Our audit of internal control over financial reporting of the Company also did not include an evaluation of the internal control over financial reporting of Nordco.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the consolidated balance sheets of the Company as of December 31, 2021 and 2020, the related consolidated statements of income, comprehensive income, cash flows and shareholders’ equity for each of the three years in the period ended December 31, 2021, and the related notes and financial statement schedule listed in the Index at Item 15.(2) and our report dated February 17, 2022 expressed an unqualified opinion thereon.

Basis for Opinion

The Company’s management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting included in the accompanying Management’s Report on Internal Control over Financial Reporting. Our responsibility is to express an opinion on the Company’s internal control over financial reporting based on our audit. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects.

Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, testing and evaluating the design and operating effectiveness of internal control based on the assessed risk, and performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.

Definition and Limitations of Internal Control over Financial Reporting

A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

/s/ Ernst & Young LLP

Pittsburgh, Pennsylvania

February 17, 2022

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WESTINGHOUSE AIR BRAKE TECHNOLOGIES CORPORATION

CONSOLIDATED BALANCE SHEETS

						December 31,
In millions, except par value						2021						2020
Assets
Assets
Cash and cash equivalents						$	473					$	599
Accounts receivable						1,085						969
Unbilled accounts receivable						392						443
Inventories						1,689						1,642
Other current assets						193						227
Total current assets						3,832						3,880
Property, plant and equipment, net						1,497						1,601
Goodwill						8,587						8,485
Other intangible assets, net						3,705						3,869
Other noncurrent assets						833						619
Total noncurrent assets						14,622						14,574
Total Assets						$	18,454					$	18,454
Liabilities and Shareholders’ Equity
Liabilities
Accounts payable						$	1,012					$	909
Customer deposits						629						643
Accrued compensation						335						242
Accrued warranty						228						240
Current portion of long-term debt						2						447
Other accrued liabilities						704						745
Total current liabilities						2,910						3,226
Long-term debt						4,056						3,792
Accrued postretirement and pension benefits						77						114
Deferred income taxes						288						168
Contingent consideration						141						218
Other long term liabilities						743						783
Total Liabilities						8,215						8,301
Commitments and Contingencies (Note 18)
Equity
Common stock, $.01 par value; 500.0 shares authorized: 226.9 and 226.9 shares issued and 185.8 and 188.9 outstanding at December 31, 2021 and 2020, respectively						2						2
Additional paid-in capital						7,916						7,881
Treasury stock, at cost, 41.1 and 38.0 shares, at December 31, 2021 and 2020, respectively						(1,306)						(1,010)
Retained earnings						4,055						3,589
Accumulated other comprehensive loss						(466)						(339)
Total Westinghouse Air Brake Technologies Corporation shareholders’ equity						10,201						10,123
Noncontrolling interest						38						30
Total Equity						10,239						10,153
Total Liabilities and Equity						$	18,454					$	18,454

 The accompanying notes are an integral part of these statements.

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 WESTINGHOUSE AIR BRAKE TECHNOLOGIES CORPORATION

CONSOLIDATED STATEMENTS OF INCOME

						Year Ended December 31,
						2021						2020						2019
In millions, except per share data
Net sales:
Sales of goods						$	6,205					$	6,233					$	6,908
Sales of services						1,617						1,323						1,292
Total net sales						7,822						7,556						8,200
Cost of sales:
Cost of goods						(4,545)						(4,629)						(5,128)
Cost of services						(908)						(790)						(794)
Total cost of sales						(5,453)						(5,419)						(5,922)
Gross profit						2,369						2,137						2,278
Operating expenses:
Selling, general and administrative expenses						(1,030)						(948)						(1,167)
Engineering expenses						(176)						(162)						(210)
Amortization expense						(287)						(282)						(238)
Total operating expenses						(1,493)						(1,392)						(1,615)
Income from operations						876						745						663
Other income and expenses:
Interest expense, net						(177)						(199)						(219)
Other income, net						38						11						3
Income before income taxes						737						557						447
Income tax expense						(172)						(145)						(120)
Net income						565						412						327
Less: Net (income) loss attributable to noncontrolling interest						(7)						2						—
Net income attributable to Wabtec shareholders						$	558					$	414					$	327
Earnings Per Common Share
Basic
Net income attributable to Wabtec shareholders						$	2.96					$	2.18					$	1.91
Diluted
Net income attributable to Wabtec shareholders						$	2.96					$	2.17					$	1.84
Weighted average shares outstanding
Basic						187.7						189.9						170.5
Diluted						188.1						190.4						177.3

 

The accompanying notes are an integral part of these statements.

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WESTINGHOUSE AIR BRAKE TECHNOLOGIES CORPORATION

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

 

						Year Ended December 31,
						2021						2020						2019
In millions
Net income attributable to Wabtec shareholders						$	558					$	414					$	327
Foreign currency translation (loss) gain						(136)						48						(106)
Unrealized (loss) gain on derivative contracts						(10)						8						(4)
Unrealized gain (loss) on pension benefit plans and post-retirement benefit plans						21						(14)						(22)
Other comprehensive (loss) income before tax						(125)						42						(132)
Income tax (expense) benefit related to components of other comprehensive (loss) income						(2)						2						6
Other comprehensive (loss) income, net of tax						(127)						44						(126)
Comprehensive income attributable to Wabtec shareholders						$	431					$	458					$	201

  

The accompanying notes are an integral part of these statements.

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WESTINGHOUSE AIR BRAKE TECHNOLOGIES CORPORATION

CONSOLIDATED STATEMENTS OF CASH FLOWS

 

						December 31,
						2021						2020						2019
In millions
Operating Activities
Net income						$	565					$	412					$	327
Adjustments to reconcile net income to net cash provided by operations:
Depreciation and amortization						491						473						401
Stock-based compensation expense						46						20						50
Below market intangible amortization						(50)						(88)						(82)
Deferred income taxes						88						29						(27)
(Gain) Loss on disposal of property, plant and equipment						(4)						10						16
Changes in operating assets and liabilities, net of acquisitions
Accounts receivable and unbilled accounts receivable						(76)						315						(6)
Inventories						(41)						181						256
Accounts payable						109						(269)						(144)
Accrued income taxes						(4)						57						11
Accrued liabilities and customer deposits						84						(91)						(12)
Other assets and liabilities						(135)						(265)						226
Net cash provided by operating activities						1,073						784						1,016
Investing Activities
Purchase of property, plant and equipment						(130)						(136)						(186)
Proceeds from disposal of property, plant and equipment						25						21						4
Acquisitions of business, net of cash acquired						(435)						(40)						(2,996)
Net cash used for investing activities						(540)						(155)						(3,178)
Financing Activities
Proceeds from debt, net of issuance costs						5,391						3,878						3,982
Payments of debt						(5,552)						(4,077)						(3,424)
Repurchase of stock						(300)						(207)						—
Payment of contingent consideration on acquisitions						(99)						(115)						(10)
Cash dividends						(92)						(93)						(82)
Other financing activities						(1)						(5)						(5)
Net cash (used for) provided by financing activities						(653)						(619)						461
Effect of changes in currency exchange rates						(6)						(15)						(37)
Decrease in cash						(126)						(5)						(1,738)
Cash and cash equivalents, beginning of year						599						604						2,342
Cash and cash equivalents, end of year						$	473					$	599					$	604

 

The accompanying notes are an integral part of these statements.

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WESTINGHOUSE AIR BRAKE TECHNOLOGIES CORPORATION

CONSOLIDATED STATEMENTS OF SHAREHOLDERS’ EQUITY

In millions, except share and per share data						Common Stock Shares						Common Stock Amount						Additional Paid-in Capital						Treasury Stock Shares						Treasury Stock Amount						Retained Earnings						Accumulated Other Comprehensive Loss						Non-controlling Interest						Total
Balance, December 31, 2018						132,349,534						$	1					$	915					(35,734,588)						$	(816)					$	3,023					$	(257)					$	4					$	2,870
Cash dividends ($0.48 dividend per share)						—						—						—						—						—						(82)						—						—						(82)
Proceeds from treasury stock issued from the exercise of stock options and other benefit plans, net of tax						—						—						(15)						486,601						9						—						—						—						(6)
Stock based compensation						—						—						38						—						—						—						—						—						38
Net income						—						—						—						—						—						327						—						—						327
Other comprehensive loss, net of tax						—						—						—						—						—						—						(126)						—						(126)
Acquisition of GE Transportation						94,597,646						1						6,939						—						—						—						—						31						6,971
Other						—						—						—						—						—						—						—						2						2
Balance, December 31, 2019						226,947,180						2						7,877						(35,247,987)						(807)						3,268						(383)						37						9,994
Cash dividends ($0.48 dividend per share)						—						—						—						—						—						(93)						—						—						(93)
Proceeds from treasury stock issued from the exercise of stock options and other benefit plans, net of tax						—						—						(9)						315,988						4						—						—						—						(5)
Stock based compensation						—						—						17						—						—						—						—						—						17
Net income (loss)						—						—						—						—						—						414						—						(2)						412
Other comprehensive income (loss), net of tax						—						—						—						—						—						—						44						(1)						43
Stock repurchase						—						—						—						(3,127,698)						(207)						—						—						—						(207)
Other						—						—						(4)						—						—						—						—						(4)						(8)
Balance, December 31, 2020						226,947,180						2						7,881						(38,059,697)						(1,010)						3,589						(339)						30						10,153
Cash dividends ($0.48 dividend per share)						—						—						—						—						—						(92)						—						—						(92)
Proceeds from treasury stock issued from the exercise of stock options and other benefit plans, net of tax						—						—						(6)						244,541						4						—						—						—						(2)
Stock based compensation						—						—						41						—						—						—						—						—						41
Net income						—						—						—						—						—						558						—						7						565
Other comprehensive loss, net of tax						—						—						—						—						—						—						(127)						—						(127)
Stock repurchase						—						—						—						(3,329,003)						(300)						—						—						—						(300)
Other						—						—						—						—						—						—						—						1						1
Balance, December 31, 2021						226,947,180						$	2					$	7,916					(41,144,159)						$	(1,306)					$	4,055					$	(466)					$	38					$	10,239

The accompanying notes are an integral part of these statements.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

1. BUSINESS

Wabtec is one of the world’s largest providers of locomotives, value-added, technology-based equipment, systems and services for the global freight rail and passenger transit industries. Our highly engineered products, which are intended to enhance safety, improve productivity and reduce maintenance costs for customers, can be found on most locomotives, freight cars, passenger transit cars and buses around the world. Our core products and services are essential in the safe and efficient operation of freight rail and passenger transit vehicles. Wabtec is a global company with operations in over 50 countries and our products can be found in more than 100 countries throughout the world. In 2021, approximately 60% of the Company’s net sales came from customers outside the U.S.

The COVID-19 pandemic had a materially adverse impact on our operations and business results for the years ended December 31, 2021, and 2020 which is discussed in more detail in the Results of Operations section in Part II, Item 7 of this report. COVID-19 has continued to impact our sales channels, supply chain, manufacturing operations, workforce, and other key aspects of our operations. Our top concern is, and remains, the health and well-being of our employees around the world. The outbreak and preventive measures taken to help curb the spread, including temporary plant closures during 2020 in China, India, Italy and other countries where outbreaks and stay-at-home orders were most prevalent, had an adverse impact on our operations and business results. Supply chain disruptions and labor availability have caused component and chip shortages resulting in an adverse effect on the timing of the Company’s revenue generation. Additionally, broad-based inflation, escalation of metals and commodities costs, transportation and logistics costs and labor costs have all resulted from the COVID-19 pandemic. The Company has implemented various mitigating actions to lessen the impact of supply chain disruptions caused by the COVID-19 pandemic. These actions include price escalations in long-term contracts, implementing price surcharges, driving operational efficiencies through various cost mitigation efforts and discretionary spend management, strategic sourcing alignments, and accelerating integration synergies where possible. The Company expects to continue to realize these increased costs over the next few quarters.

 

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Principles of Consolidation The consolidated financial statements include the accounts of the Company and all subsidiaries that it controls. For consolidated subsidiaries in which the Company's ownership is less than 100%, the outside shareholders' interests are shown as noncontrolling interests. These statements have been prepared in accordance with U.S. generally accepted accounting principles. Sales between subsidiaries are billed at prices consistent with sales to third parties and are eliminated in consolidation.

Cash Equivalents Cash equivalents are highly liquid investments purchased with an original maturity of three months or less.

Allowance for Doubtful Accounts The allowance for doubtful accounts receivable reflects our best estimate of expected losses inherent in our receivable portfolio determined on the basis of historical experience, relevant credit forecast information, changes to customer's solvency and other currently available evidence. The allowance for doubtful accounts was $32 million and $37 million as of December 31, 2021 and 2020, respectively.

Inventories Inventories are stated at the lower of cost or net realizable value. Cost is determined under the first-in, first-out (FIFO) method. Inventory costs include material, labor and overhead.

Property, Plant and Equipment Property, plant and equipment additions are stated at cost. Expenditures for renewals and improvements are capitalized. Expenditures for ordinary maintenance and repairs are expensed as incurred. The Company computes book depreciation principally on the straight-line method. Accelerated depreciation methods are utilized for income tax purposes.

Leasing Arrangements The Company conducts a portion of its operations from leased facilities and finances certain equipment purchases through lease agreements. In those cases in which the lease term approximates the useful life of the leased asset or the lease meets certain other prerequisites, the leasing arrangement is classified as a financing lease. The remaining arrangements are treated as operating leases. Right-of-use lease assets are classified as long-term assets under the caption "Other noncurrent assets" and lease liabilities are classified under the captions "Other accrued liabilities" and "Other long-term liabilities" on the Consolidated Balance Sheets.

Goodwill and Intangible Assets Goodwill and other intangible assets with indefinite lives are not amortized. Other intangibles (with definite lives) are amortized on a straight-line basis over their estimated economic lives. Amortizable intangible assets are reviewed for impairment when indicators of impairment are present. The Company tests goodwill and indefinite-lived intangible assets for impairment at the reporting unit level and at least annually. The Company performs its annual impairment test during the fourth quarter after the annual forecasting process is completed, and also tests for impairment whenever events or changes in circumstances indicate that the carrying value may not be recoverable. Periodically,

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Management of the Company assesses whether or not an indicator of impairment is present that would necessitate an impairment analysis be performed.

Equity Method Investments The Company invests in privately-held companies which are accounted for using the equity method. The equity method is applied in situations where the Company has the ability to exercise significant influence, but not control, over the investee. Equity method investments are classified as other assets under the caption "Other noncurrent assets" on the Consolidated Balance Sheets. Equity method investments were $96 million and $100 million at December 31, 2021 and 2020, respectively.

Depreciation Expense Depreciation of property, plant and equipment related to the manufacturing of products or services provided is included in Cost of goods or Cost of services. Depreciation of other property, plant and equipment that is not attributable to the manufacturing of products or services provided is included in Selling, general and administrative expenses or Engineering expense to the extent the property, plant, and equipment is used for research and development purposes.

Warranty Costs Warranty costs are accrued based on Management’s estimates of repair or upgrade costs per unit and historical experience.

Income Taxes Income taxes are accounted for under the liability method. Deferred tax assets and liabilities are determined based on differences between financial reporting and tax basis of assets and liabilities and are measured using the enacted tax rates and laws. The provision for income taxes includes federal, state and foreign income taxes.

Stock-Based Compensation The Company recognizes compensation expense for stock-based compensation based on the grant date fair value amortized ratably over the requisite service period following the date of grant.

Financial Derivatives and Hedging Activities In the normal course of business, the Company is exposed to interest rate, commodity price and foreign currency exchange rate fluctuations. At times, the Company limits these risks through the use of derivatives such as cross-currency swaps, foreign currency forward contracts, interest rate swaps, commodity swaps and options. In accordance with the Company's policy, derivatives are only used for hedging purposes. The Company does not use derivatives for trading or speculative purposes. Foreign currency forward contracts are agreements with a counterparty to exchange two distinct currencies at a set exchange rate for delivery on a set date at some point in the future. There is no exchange of funds until the delivery date. At the delivery date, the Company can either take delivery of the currency or settle on a net basis. For further information regarding the foreign currency forward contracts see Note 17.

Foreign Currency Translation Certain of our international operations have determined that the local currency is the functional currency whereas others have determined the U.S. dollar is their functional currency. Assets and liabilities of foreign subsidiaries where the functional currency is the local currency are translated at the rate of exchange in effect on the balance sheet date while income and expenses are translated at the average rates of exchange prevailing during the period. Foreign currency gains and losses resulting from transactions and the translation of financial statements are recorded in the Company’s consolidated financial statements based upon the provisions of ASC 830 “Foreign Currency Matters.” The effects of currency exchange rate changes on intercompany transactions and balances of a long-term investment nature are accumulated and carried as a component of Accumulated other comprehensive loss. The effects of currency exchange rate changes on intercompany transactions that are denominated in a currency other than an entity’s functional currency are charged or credited to earnings. Foreign exchange transaction gains (losses) recognized in Other income, net were $8 million, $(8) million and $(14) million for 2021, 2020 and 2019, respectively.

Noncontrolling Interests In accordance with ASC 810, the Company has classified noncontrolling interests as equity on our consolidated balance sheets as of December 31, 2021 and 2020. Net (income) loss attributable to noncontrolling interests was not material for the years ended December 31, 2021, 2020 and 2019.

Revenue Recognition The Company accounts for Revenue under ASC 606 Revenue from Contracts with Customers. This guidance provides a five-step analysis of transactions to determine when and how revenue is recognized and requires entities to recognize revenue at an amount that reflects the consideration to which the Company expects to be entitled in exchange for transferring goods or services to a customer.

A majority of the Company’s revenues are derived from performance obligations that are satisfied at a point in time when control passes to the customer which is generally at the time of shipment in accordance with agreed upon delivery terms. The remaining revenues are earned over time. All fees billed to the customer for shipping and handling are classified as a component of Net sales. All costs associated with shipping and handling are classified as a component of Cost of sales.

The Company also has long-term customer agreements involving the design and production of highly engineered products that require revenue to be recognized over time because these products have no alternative use without significant economic loss, and the agreements contain an enforceable right to payment including a reasonable profit margin from the customer in the event of contract termination. Additionally, the Company has customer agreements involving the creation or enhancement of an asset that the customer controls which also require revenue to be recognized over time. Generally, the

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Company uses an input method for determining the amount of revenue, cost and gross margin to recognize over time for these customer agreements. The input methods used for these agreements include costs of material and labor, both of which give an accurate representation of the progress made toward complete satisfaction of a particular performance obligation. Contract revenues and cost estimates are reviewed and revised periodically throughout the year and adjustments are reflected in the accounting period as such amounts are determined. Additional information with respect to contract assets and liabilities is included in Note 8.

Due to the nature of work required to be performed on the Company’s long-term projects, the estimation of total revenue and cost at completion is subject to many variables and requires significant judgment. Contract estimates related to long-term projects are based on various assumptions to project the outcome of future events that could span several years. These assumptions include cost of materials; labor availability and productivity; complexity of the work to be performed; and the performance of suppliers, customers and subcontractors that may be associated with the contract. We have a disciplined process where management reviews the progress of long term-projects periodically throughout the year. As part of this process, management reviews information including key contract matters, progress towards completion, identified risks and opportunities and any other information that could impact the Company’s estimates of revenue and costs. After completing this analysis, any adjustments to net sales, cost of goods sold, and the related impact to operating income are recognized as necessary in the period they become known.

Generally, the Company’s revenue contains a single performance obligation for each distinct good or service; however, a single contract may have multiple performance obligations comprising multiple promises to customers. When there are multiple performance obligations, revenue is allocated based on the relative stand-alone selling price. Pricing is defined in our contracts on a line item basis and includes an estimate of variable consideration when required by the terms of the individual customer contract. Types of variable consideration the Company typically has include volume discounts, prompt payment discounts, price escalation clauses, liquidating damages, and performance bonuses. Sales returns and allowances are also estimated and recognized in the same period the related revenue is recognized, based upon the Company’s experience and future expectations.

Remaining performance obligations represent the allocated transaction price of unsatisfied or partially unsatisfied performance obligations. As of December 31, 2021, the Company's remaining performance obligations were approximately $22 billion. The Company expects to recognize revenue of approximately 25% of remaining performance obligations over the next 12 months, with the remainder recognized thereafter.

Revolving Receivables Program In May 2020, the Company entered into a revolving agreement to transfer up to $150 million of certain receivables of certain subsidiaries of the Company (the "Originators") through our bankruptcy-remote subsidiary to a financial institution on a recurring basis in exchange for cash equal to the gross receivables transferred. The bankruptcy remote subsidiary is a separate legal entity with its own creditors, and its assets are not available to pay creditors of the Company or any other affiliates of the Company. During the first quarter of 2021, the Company amended its revolving agreement to increase the amount of certain receivables that can be transferred from $150 million to $200 million. As customers pay their balances, we transfer additional receivables into the program, resulting in our gross receivables sold exceeding net cash flow impacts (e.g., collect and reinvest). The sold receivables are fully guaranteed by our bankruptcy-remote subsidiary that are pledged as collateral under this agreement. At December 31, 2021, and 2020 the bankruptcy-remote subsidiary held receivables of $324 million and $114 million, respectively. The transfers are recorded at the fair value of the proceeds received and obligations assumed less derecognized receivables. No obligation was recorded at December 31, 2021 or 2020 as the estimated expected credit losses on receivables sold is insignificant. Our maximum exposure to loss related to these receivables transferred is limited to the amount outstanding. The Company has agreed to guarantee the performance of the Originators respective obligations under the revolving agreement. None of the Company (except for the bankruptcy-remote consolidated subsidiary referenced above) nor the Originators guarantees the collectability of the receivables under the revolving agreements.

The following table sets forth a summary of receivables sold:

In millions						Twelve Months Ended December 31, 2021			Twelve Months Ended December 31, 2020
Gross receivables sold/cash proceeds received						$	1,319		$	852
Collections reinvested under revolving agreement						1,372			779
Net cash proceeds (remitted) received						(53)			73

Pre-Production Costs Certain pre-production costs relating to long-term production and supply contracts have been deferred and will be recognized over the life of the contracts. Deferred pre-production costs were $86 million and $87 million at December 31, 2021 and 2020, respectively.

Preferred Stock The Company’s authorized capital stock includes 1,000,000 shares of preferred stock. The Board of Directors has the authority to issue the preferred stock and to fix the designations, powers, preferences and rights of the shares

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of each such class or series, including dividend rates, conversion rights, voting rights, terms of redemption and liquidation preferences, without any further vote or action by the Company’s shareholders. The rights and preferences of the preferred stock would be superior to those of the common stock. At December 31, 2021 and 2020 there was no preferred stock issued or outstanding.

Significant Customers and Concentrations of Credit Risk The Company’s trade receivables are primarily from rail and transit industry original equipment manufacturers, Class I railroads, railroad carriers and commercial companies that utilize rail cars in their operations, such as utility and chemical companies. No one customer accounted for more than 10% of the Company’s consolidated net sales in 2021, 2020 or 2019.

Reclassifications Certain prior year amounts have been reclassified, where necessary, to conform to the current year presentation.

Use of Estimates The preparation of financial statements in conformity with generally accepted accounting principles in the United States requires the Company to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the financial statements and reported amounts of revenues and expenses during the reporting period. Actual amounts could differ materially from the estimates. On an ongoing basis, Management reviews its estimates based on currently available information. Changes in facts and circumstances may result in revised estimates.

Accounting Standards Adopted in 2021

In December 2019, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2019-12, Income Taxes: Simplifying the Accounting for Income Taxes. The amendments in this update simplify the accounting for certain income tax transactions by removing specific exceptions to the general principles in Accounting Standards Codification ("ASC") 740, "Income Taxes." This guidance was effective for fiscal years beginning after December 15, 2020 with early adoption permitted. The adoption of this standard did not have a material impact on the Company's consolidated financial statements.

Accounting Standards Issued in 2021

In October 2021, the FASB issued ASU 2021-08, Business Combinations (Topic 805): Accounting for Contract Assets and Contract Liabilities from Contracts with Customers. The amendments in this update provide specific guidance on how to recognize and measure acquired contract assets and contract liabilities from revenue contracts in a business combination and address how to determine whether a contract liability is recognized by the acquirer in a business combination. The amendments in this update will be effective for Wabtec on January 1, 2023 and will be applied prospectively to business combinations occurring on or after the effective date.

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3. ACQUISITIONS

Nordco

On March 31, 2021, the Company acquired Nordco, a leading North American supplier of new, rebuilt and used maintenance of way equipment. Nordco's products and services portfolio includes mobile railcar movers and ultrasonic rail flaw detection technologies. The purchase price paid for 100% ownership of Nordco was approximately $410 million.

The following table summarizes the preliminary fair value of the Nordco assets acquired and liabilities assumed:

In millions
Assets acquired
Cash and cash equivalents						$	5
Accounts receivable						23
Inventory						34
Other current assets						2
Property, plant and equipment						17
Goodwill						214
Other intangible assets						168
Other noncurrent assets						12
Total assets acquired						475
Liabilities assumed
Current liabilities						19
Noncurrent liabilities						46
Total liabilities assumed						65
Net assets acquired						$	410

The fair values of the assets acquired and liabilities assumed were determined using the income, cost and market approaches. Discounted cash flow models were used to estimate the fair values of acquired intangibles. The fair value measurements were primarily based on significant inputs that are not observable in the market and are considered Level 3 in the fair value hierarchy. These estimates are preliminary in nature and subject to adjustments, which could be material. Any necessary adjustments will be finalized within one year from the date of acquisition; adjustments to date have not been significant. Intangible assets acquired include customer relationships and intellectual property that are subject to amortization, and trade names that were assigned an indefinite life and are not subject to amortization. Contingent liabilities assumed as part of the transaction were not material.

Goodwill was calculated as the difference between the acquisition date fair value of the consideration transferred and the fair value of the net assets acquired, and represents the assembled workforce and the future economic benefits, including synergies, that are expected to be achieved as a result of the acquisition. The purchased goodwill is not expected to be deductible for tax purposes. The results of this business since the date of acquisition are reported within the Freight segment and the Services product line. The pro forma impact on Wabtec’s sales and results of operations, including the pro forma effect of events that are directly attributable to the acquisition, was not significant.

General Electric Transportation

Wabtec, General Electric Company ("GE"), GE Transportation, a Wabtec company formerly known as Transportation System Holdings Inc. ("SpinCo"), which was a newly formed wholly owned subsidiary of GE, and Wabtec US Rail Holdings, Inc. ("Merger Sub"), which was a newly formed wholly owned subsidiary of the Company, entered into the Original Merger Agreement on May 20, 2018, and GE, SpinCo, Wabtec and Wabtec US Rail, Inc. ("Direct Sale Purchaser") entered into the Original Separation Agreement on May 20, 2018, which together provided for the combination of Wabtec and GE Transportation. The Original Merger Agreement and Original Separation Agreement were subsequently amended on January 25, 2019 and the Merger was completed on February 25, 2019.

As part of the Merger, certain assets of GE Transportation, including the equity interests of certain pre-Transaction subsidiaries of GE that compose part of GE Transportation, were sold to Direct Sale Purchaser for a cash payment of $2.875 billion, and Direct Sale Purchaser assumed certain liabilities of GE Transportation in connection with this purchase (the "Direct Sale"). Thereafter, GE transferred the SpinCo business to SpinCo and its subsidiaries (to the extent not already held by SpinCo and its subsidiaries), and SpinCo issued to GE shares of SpinCo Class A preferred stock, SpinCo Class B preferred

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stock, SpinCo Class C preferred stock and additional shares of SpinCo common stock. Following this issuance of additional SpinCo common stock to GE, and immediately prior to the Distribution (as defined below), GE owned 8,700,000,000 shares of SpinCo common stock, 15,000 shares of SpinCo Class A preferred stock, 10,000 shares of SpinCo Class B preferred stock and one share of SpinCo Class C preferred stock, which constituted all of the outstanding stock of SpinCo.

Following the Direct Sale, GE distributed the distribution shares of SpinCo in a spin-off transaction to its stockholder (the "Distribution"). Immediately after the Distribution, Merger Sub merged with and into SpinCo (the "Merger"), whereby the separate corporate existence of Merger Sub ceased and SpinCo continued as the surviving company and a wholly owned subsidiary of Wabtec (except with respect to shares of SpinCo Class A preferred stock held by GE). In the Merger, subject to adjustment in accordance with the Merger Agreement, each share of SpinCo common stock converted into the right to receive a number of shares of Wabtec common stock based on the common stock exchange ratio set forth in the Merger Agreement and the share of SpinCo Class C preferred stock was converted into the right to receive (a) 10,000 shares of Wabtec convertible preferred stock and (b) a number of shares of Wabtec common stock equal to 9.9% of the fully-diluted pro forma Wabtec shares. Immediately prior to the Merger, Wabtec paid $10 million in cash to GE in exchange for all of the shares of SpinCo Class B preferred stock.

Upon consummation of the Merger, Wabtec issued 46,763,975 shares of common stock to the holders of GE common stock, 19,018,207 shares of common stock to GE and 10,000 shares of preferred stock to GE and made a cash payment to GE of $2.885 billion. As a result and calculated based on Wabtec’s outstanding common stock on a fully-diluted, as-converted and as-exercised basis, as of February 25, 2019, approximately 49.2% of the outstanding shares of Wabtec common stock was held collectively by GE and holders of GE common stock (with 9.9% held by GE directly in shares of Wabtec common stock and 15% underlying the shares of Wabtec convertible preferred stock held by GE) and approximately 50.8% of the outstanding shares of Wabtec common stock would be held by pre-Merger Wabtec stockholders, in each case calculated on a fully-diluted, as-converted and as-exercised basis. Following the Merger, GE also retained 15,000 shares of SpinCo Class A non-voting preferred stock, and Wabtec held 10,000 shares of SpinCo Class B non-voting preferred stock.

After the Merger, SpinCo, which is Wabtec’s wholly owned subsidiary (except with respect to shares of SpinCo Class A preferred stock held by GE), and Direct Sale Purchaser, which also is Wabtec’s wholly owned subsidiary, together, SpinCo and Direct Sale Purchaser own and operate the post-transaction GE Transportation. All shares of the Company’s common stock, including those issued in the Merger, are listed on the NYSE under the Company’s current trading symbol “WAB.” On the date of the Distribution, GE and SpinCo, directly or through subsidiaries entered into additional agreements relating to, among other things, intellectual property, employee matters, tax matters, research and development and transition services.

On May 6, 2019, GE completed the sale of approximately 8,780 shares of Wabtec's Series A Preferred stock which converted upon the sale to 25,300,000 shares of Wabtec's common stock. On August 9, 2019, GE completed a sale of the remaining shares of Series A Preferred Stock outstanding which converted to approximately 3,515,500 shares of common stock, as well as 16,969,656 shares of common stock owned directly by GE. Finally, on September 12, 2019, GE completed a sale of all of its remaining shares of common stock of Wabtec, approximately 2,048,515 shares. In conjunction with these secondary offerings, the Company waived the requirements under the shareholders agreement for GE to maintain certain ownership levels of Wabtec's stock following the closing date of the Merger. The Company did not receive any proceeds from the sale of any of these shares.

Total future consideration to be paid by Wabtec to GE included a fixed payment of $470 million, of which $99 million and $115 million were paid during 2021 and 2020, respectively, which is directly related to the timing of tax benefits expected to be realized by Wabtec as a result of the acquisition of GE Transportation. This payment is considered contingent consideration because the timing of cash payments to GE is directly related to the future timing of tax benefits received by the Company as a result of the acquisition of GE Transportation. The estimated total value of the consideration to be paid by Wabtec in the acquisition transactions is approximately $10.3 billion, including the cash paid for the Direct Sales Assets, equity transferred for SpinCo, contingent consideration, assumed debt and net of cash acquired. The consideration is based on the Company’s closing share price of $73.36 on February 22, 2019 and the fair value of the contingent consideration.

The fair values of the assets acquired and liabilities assumed were determined using the income, cost and market approaches. Discounted cash flow models were used to estimate the fair values of acquired contract backlog, customer relationships, intellectual property intangibles, and below-market customer contracts liabilities. The fair value measurements were primarily based on significant inputs that are not observable in the market and are considered Level 3. The noncontrolling interest includes equity interests in GE Transportation's Brazil operations held by third parties on the date of acquisition. At the time of acquisition, quotable market prices of the noncontrolling interest existed; therefore, the noncontrolling interest in the GE Transportation Brazil operations were measured using a Level 1 input. In April 2019, the Company acquired the noncontrolling interest in GE Transportation's Brazil operations for $56 million which approximated the fair value assigned to the noncontrolling interest on the date of acquisition. The remaining noncontrolling interest value was determined based on inputs that are not observable in the market and are considered Level 3.

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The following table summarizes the final fair value of the GE Transportation assets acquired and liabilities assumed:

In millions
Assets acquired
Cash and cash equivalents						$	177
Accounts receivable						541
Inventories						1,190
Other current assets						71
Property, plant, and equipment						1,089
Goodwill						5,984
Trade names						55
Customer relationships						550
Intellectual property						1,180
Backlog						1,450
Other noncurrent assets						321
Total assets acquired						12,608
Liabilities assumed
Current liabilities						1,594
Contingent consideration						440
Other noncurrent liabilities						667
Total liabilities assumed						2,701
Net assets acquired						9,907
Noncontrolling interest						$	88

The revisions to the initial estimates were based on information that existed at the date of the acquisition. Trade names, customer relationships, patents and backlog intangible assets are subject to amortization. Customer relationship and backlog intangible assets are amortized using the straight-line method of amortization using a shortened estimated useful life then the projected future cash flow benefits of the intangible assets. Contingent liabilities assumed as part of the transaction were not material and are related to legal and tax matters. Contingent liabilities are recorded at fair value in purchase accounting, aside from those pertaining to uncertainty in income taxes which are an exception to the fair value basis of accounting. Included in other noncurrent liabilities are approximately $525 million of customer contracts whose terms are unfavorable compared to market terms at the date of consummation of the GE Transportation acquisition.

Goodwill was calculated as the difference between the acquisition date fair value of the consideration transferred and the fair value of the net assets acquired, and represents the future economic benefits, including synergies, and assembled workforce, that are expected to be achieved as a result of the consummation of the acquisition of GE Transportation. A majority of the purchased goodwill is expected to be deductible for tax purposes. The goodwill has been allocated to the Freight segment.

Costs related to the acquisition and integration of GE Transportation were approximately $3 million, $48 million and $63 million for the years ended December 31, 2021, 2020 and 2019, respectively, and are included in Selling, general and administrative expenses on the Consolidated Statements of Income.

The following unaudited pro forma consolidated financial information presents income statement results as if the GE Transportation acquisition had occurred January 1, 2018:

In millions, except per share data						Twelve Months Ended December 31, 2019
Net sales						$	8,676
Gross profit						2,343
Net income attributable to Wabtec shareholders						277
Diluted earnings per share
As Reported						$	1.84
Pro forma						$	1.45

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 The historical consolidated financial information of the Company and the GE Transportation acquisition detailed above has been adjusted in the pro forma information to give effect to pro forma events that are (1) directly attributable to the transactions, (2) factually supportable and (3) expected to have a continuing impact on the combined results. Pro forma data may not be indicative of the results that would have been obtained had the GE Transportation acquisition occurred at the beginning of the periods presented, nor is it intended to be a projection of future results.

The Company also made smaller acquisitions not listed above which are individually and collectively immaterial.

4. SUPPLEMENTAL CASH FLOW DISCLOSURES

						Year Ended December 31,
						2021						2020						2019
In millions
Interest paid during the year						$	164					$	174					$	193
Income taxes paid during the year, net of amount refunded						$	123					$	129					$	100
Business acquisitions:
Fair value of assets acquired						$	507					$	70					$	12,613
Liabilities assumed						68						35						2,466
Non-controlling interest (acquired) assumed						(1)						(6)						31
Stock and cash paid						440						41						10,116
Less: Cash acquired						5						1						180
Stock used for acquisition						—						—						6,940
Net cash paid						$	435					$	40					$	2,996

  

5. INVENTORIES

The components of inventory, net of reserves, were:

 

						December 31,
In millions						2021						2020
Raw materials						$	757					$	670
Work-in-progress						316						339
Finished goods						616						633
Total inventories						$	1,689					$	1,642

6. PROPERTY, PLANT & EQUIPMENT

The major classes of depreciable assets are as follows:

						December 31,
In millions						2021						2020
Machinery and equipment						$	1,433					$	1,375
Buildings and improvements						785						801
Land and improvements						96						98
Construction in progress						89						99
Property, plant and equipment						2,403						2,373
Less: accumulated depreciation						(906)						(772)
Total						$	1,497					$	1,601

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 The estimated useful lives of property, plant and equipment are as follows:

						Years
Land improvements						10 to 20
Building and improvements						20 to 40
Machinery and equipment						3 to 15

 Depreciation expense was $198 million, $183 million, and $158 million for 2021, 2020 and 2019, respectively.

7. INTANGIBLES

Goodwill and indefinite lived intangible assets are reviewed annually during the fourth quarter for impairment. For 2021, the Company opted to proceed directly to the quantitative impairment test for all reporting units with goodwill. The discounted cash flow method and the market approach were used to estimate the fair value of each reporting unit using a weighting of 75% and 25%, respectively. The discounted cash flow model requires several assumptions including future sales growth, EBIT (earnings before interest and taxes) margins, capital expenditures, a discount rate and a terminal revenue growth rate (the revenue growth rate for the period beyond the years forecasted by the reporting units) for each reporting unit. The market approach requires several assumptions including EBITDA (earnings before interest, taxes, depreciation and amortization) multiples for comparable companies that operate in the same markets as the Company’s reporting units. For 2021, the discounted cash flow method was given more weight compared to the market approach due to a relatively reduced amount of publicly available data from companies with comparable operations to those of Wabtec; however, both valuations resulted in a conclusion that the estimated fair value of all three of the Company's reporting units was in excess of their respective carrying value, which resulted in a conclusion that no impairment existed.

Additionally, the Company proceeded directly to the quantitative impairment test for some trade names with indefinite lives. The fair value of all material trade names subject to the quantitative impairment test exceeded its respective carrying value, resulting in a conclusion that no material impairment existed. For trade names not subject to the quantitative testing, the Company opted to perform a qualitative trade name impairment assessment and determined from the qualitative assessment that it was not more likely than not that the estimated fair values of the trade names were less than their carrying values; therefore, no further analysis was required. In assessing the qualitative factors to determine whether it is more likely than not that the fair value of a trade name is less than its carrying amount, the Company assessed relevant events and circumstances that may impact the fair value and the carrying amount of the trade name. The identification of relevant events and circumstances and how these may impact a trade name’s fair value or carrying amount involve significant judgments and assumptions. The judgment and assumptions include the identification of macroeconomic conditions, industry and market considerations, cost factors, overall financial performance, Wabtec specific events, share price trends and making the assessment on whether each relevant factor will impact the impairment test positively or negatively and the magnitude of any such impact.

The change in the carrying amount of goodwill by segment is as follows:

In millions						Freight Segment						Transit Segment						Total
Balance at December 31, 2019						$	6,877					$	1,484					$	8,361
Additions						2						—						2
Disposals						(6)						—						(6)
Foreign currency impact						(1)						129						128
Balance at December 31, 2020						$	6,872					$	1,613					$	8,485
Additions						214						15						229
Foreign currency impact						(13)						(114)						(127)
Balance at December 31, 2021						$	7,073					$	1,514					$	8,587

As of December 31, 2021 and 2020, the Company’s trade names had a net carrying amount of $635 million and $651 million, respectively, and the Company believes these intangibles have indefinite lives, with the exception of the right to use the GE Transportation trade name, to which the Company has assigned a useful life of 5 years.

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Intangible assets of the Company, other than goodwill and trade names, consist of the following:

						December 31,
In millions						2021						2020
Intellectual property, patents, and other intangibles, net of accumulated amortization of $334 and $223						$	977					$	1,008
Backlog, net of accumulated amortization of $309 and $206						1,114						1,224
Customer relationships, net of accumulated amortization of $331 and $276						979						986
Total						$	3,070					$	3,218

The remaining weighted average useful lives of backlog, intellectual property, customer relationships, and other intangibles were 10 years, 11 years, 17 years, and 9 years, respectively. The backlog intangible primarily consists of in-place long-term service agreements acquired by the Company in conjunction with the acquisition of GE Transportation. Amortization expense for intangible assets was $287 million, $282 million, and $238 million for the years ended December 31, 2021, 2020, and 2019, respectively.

Estimated amortization expense for the five succeeding years is as follows (in millions):

2022						$	291
2023						$	290
2024						$	281
2025						$	278
2026						$	274

8. CONTRACT ASSETS AND CONTRACT LIABILITIES

Contract assets include unbilled amounts resulting from sales under long-term contracts where revenue is recognized over time and revenue exceeds the amount that can be billed to the customer based on the terms of the contract. The current portion of the contract assets are classified as current assets under the caption “Unbilled accounts receivable” while the noncurrent contract assets are classified as other assets under the caption "Other noncurrent assets" on the Consolidated Balance Sheets. Noncurrent contract assets were $153 million and $101 million at December 31, 2021 and 2020, respectively. Included in noncurrent contract assets are certain costs that are specifically related to a contract, however, do not directly contribute to the transfer of control of the tangible product being created, such as pre-production costs. The Company has elected to use the practical expedient and not consider unbilled amounts anticipated to be paid within one year as significant financing components.

Contract liabilities include customer deposits that are made prior to the incurrence of costs related to a newly agreed upon contract and advanced customer payments that are in excess of revenue recognized. The current portion of contract liabilities are classified as current liabilities under the caption “Customer deposits” while the noncurrent contract liabilities are classified as noncurrent liabilities under the caption "Other long-term liabilities" on the Consolidated Balance Sheets. Noncurrent contract liabilities were $88 million and $80 million at December 31, 2021 and 2020, respectively. These contract liabilities are not considered a significant financing component because they are used to meet working capital demands that can be higher in the early stages of a contract and revenue associated with the contract liabilities is expected to be recognized within one year. Contract liabilities also include provisions for estimated losses from uncompleted contracts. Provisions for loss contracts were $107 million and $109 million at December 31, 2021 and 2020, respectively. These provisions for estimated losses are classified as current liabilities and included within the caption “Other accrued liabilities” on the Consolidated Balance Sheets.

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The following table reconciles the changes in the Company’s contract assets and liabilities as follows:

						Contract Assets
In millions						2021						2020
Balance at beginning of year						$	544					$	623
Acquisitions						—						4
Recognized in current year						617						850
Reclassified to accounts receivable						(602)						(950)
Foreign currency impact						(14)						17
Balance at end of year						$	545					$	544
						Contract Liabilities
In millions						2021						2020
Balance at beginning of year						$	832					$	800
Acquisitions						2						7
Recognized in current year						740						872
Amounts in beginning balance reclassified to revenue						(463)						(532)
Current year amounts reclassified to revenue						(273)						(326)
Foreign currency impact						(14)						11
Balance at end of year						$	824					$	832

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9. LONG-TERM DEBT

Long-term debt consisted of the following:

																		December 31,
			Effective Interest Rate															2021												2020
In millions									Face Value									Book Value						Fair Value 1						Book Value						Fair Value 1
Senior Credit and 364 Day Facility2:
U.S. dollar-denominated Term Loans3			—		%				N/A									$	—					$	—					$	645					$	645
Multi-Currency Revolving loan facility			1.5		%				N/A									—						—						—						—
Senior Notes:
4.375% Senior Notes, due 2023			4.5		%				$	250								250						260						249						267
4.15% Senior Notes, due 2024			4.6		%				$	750								747						796						746						817
3.20% Senior Notes, due 2025			3.4		%				$	500								497						523						496						533
3.45% Senior Notes, due 2026			3.5		%				$	750								749						795						749						820
1.25% Senior Notes (EUR), due 2027			1.5		%				€	500								560						574						—						—
4.70% Senior Notes, due 2028			5.0		%				$	1,250								1,243						1,423						1,242						1,472
Other Borrowings																		12						12						112						113
Total																		4,058						4,383						4,239						4,667
Less: current portion																		2						2						447						447
Long-term portion																		$	4,056					$	4,381					$	3,792					$	4,220

1. See Note 17 for information on the fair value measurement of the Company's long-term debt.

2. During the second quarter of 2021, the Company repaid all outstanding term loan borrowings and related interest under the Senior Credit Facility and the 364 Day Facility.

3. U.S. dollar-denominated Term Loans includes the total outstanding balance of term loans denominated in U.S. dollars from the Senior Credit Facility and the 364 Day Facility.

Variances between Face Value and Book Value are the result of unamortized discounts and debt issuance fees.

The Company borrows and repays against the Multi-Currency Revolving loan facility for added flexibility in liquidity to manage cash during the operating cycle. The proceeds from borrowing and the repayments are included within the Financing Activities section of the Consolidated Statements of Cash Flows.

As of December 31, 2021, the annual repayment requirements for debt obligations are as follows:

In millions
2022			$	2
2023			250
2024			762
2025			500
2026			750
Thereafter			1,817
Total			$	4,081

For those debt securities that have a premium or discount at the time of issuance, the Company amortizes the amount through interest expense based on the maturity date or the first date the holders may require the Company to repurchase the debt securities, if applicable. A premium would result in a decrease in interest expense, and a discount would result in an increase in interest expense in future periods. Additionally, the Company has debt issuance costs related to certain financing transactions which are also amortized through interest expense. As of December 31, 2021 and 2020, the Company had total unamortized debt issuance costs and discounts of $23 million and $21 million, respectively. At December 31, 2021, the weighted average interest rate on the Company's available variable debt facilities was 1.5%.

Credit Facilities

Senior Credit Facility

On June 8, 2018, the Company entered into a credit agreement ("Senior Credit Facility"), which replaced the Company's then-existing credit agreement. The Senior Credit Facility is with a syndicate of lenders and provides for borrowings consisting of (i) term loans denominated in euros and U.S. dollars ("Term Loans"); and (ii) a multi-currency revolving loan facility, providing for an equivalent in U.S. dollars of up to $1,200 million in multi-currency revolving loans (inclusive of swingline

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loans of up to $75 million and letters of credit of up to $450 million (the "Revolving Credit Facility")). The Revolving Credit Facility will mature on June 8, 2023.

Under the Senior Credit Facility, we can elect to receive advances bearing interest based on either the ABR rate, the LIBOR rate or the adjusted risk free rate (each as defined in the Senior Credit Facility) plus applicable margin that is determined based on our credit ratings or the Company's Leverage. The agreement contains affirmative, negative and financial covenants, and events of default customary for facilities of this type. The obligations under the Senior Credit Facility are guaranteed by Wabtec and certain of Wabtec's U.S. subsidiaries, as guarantors.

The Company has agreed that, so long as any lender has any commitment under the Senior Credit Facility, any letter of credit is outstanding under the Senior Credit Facility, or any loan or other obligation is outstanding under the Senior Credit Facility, it will maintain the following as of the end of each fiscal quarter or the period of four quarters the ended:

Interest Coverage Ratio 1						3.0x
Leverage Ratio 2						3.25x

1. The interest coverage ratio is defined as EBITDA (earnings before interest, taxes, depreciation, and amortization), as defined in the Senior Credit Facility, to net interest expense for the four quarters then ended.

2. The leverage ratio is defined as net debt as of the last day of such fiscal quarter to EBITDA, as defined in the Senior Credit Facility for the four quarters then ended.

The Senior Credit Facility was amended in the second quarter of 2021 so the Company may increase the maximum leverage ratio to (x) 3.75 to 1.00 at the end of the fiscal quarter in which the Nordco acquisition was consummated and each of the three fiscal quarters immediately following such fiscal quarter and (y) 3.50 to 1.00 at the end of each of the fourth and fifth full fiscal quarters after the consummation of the Nordco acquisition upon the Company's request. The Company has not requested any increase in the leverage ratio at this time.

The Company was in compliance with all covenants in the Senior Credit Facility as of December 31, 2021.

The following table presents availability under the Revolving Facilities:

(in millions)						Revolving Credit Facility
Maximum Availability						$	1,200
Letters of Credit Under Credit Agreement						(3)
Current Availability						$	1,197

364-Day Facility

On April 10, 2020 the Company entered into a new $600 million 364 day credit facility ("364 Day Facility") maturing April 2021 with a group of banks which included a $144 million revolving credit facility ("364 Day Revolver") and a $456 million term loan ("364 Term Loan"). The agreement called for interest at either a LIBOR-based rate, or a rate based on the prime lending rate of the agent bank, at the Company's option. The agreement contained affirmative, negative and financial covenants, and events of default customary for facilities of this type and substantially similar to our existing Senior Credit Facility. The obligations under the 364 Day Facility were guaranteed by certain of the Company's U.S. subsidiaries, as guarantors. On June 12, 2020, the Company amended the 364 Day Facility maturity to July 9, 2021. On June 3, 2021, the Company repaid all outstanding borrowings and related interest, effectively retiring the facility.

Senior Notes

The Company or its subsidiaries may issue senior notes from time to time. These notes are comprised of our 4.375% Senior Notes due 2023 (the "2023 Notes"), 4.15% Senior Notes due 2024 (the "2024 Notes"), 3.20% Senior Notes due 2025 (the "2025 Notes"), 3.45% Senior Notes due 2026 (the "2026 Notes"), 1.25% Senior Notes (EUR) due 2027 (the "Euro Notes" discussed below), and 4.70% Senior Notes due 2028 (the "2028 Notes"). The 2023 Notes, 2024 Notes, 2025 Notes, 2026 Notes and 2028 Notes are the “US Notes”, and collectively with the Euro Notes, the “Senior Notes.” Interest on the US Notes is payable semi-annually and interest on the Euro Notes is paid annually. Each series of the Senior Notes may be redeemed any time in whole or from time to time in part in accordance with the provisions of the indenture, under which such series of notes was issued. Each of the Senior Notes may be redeemed at a redemption price of 100% of the principal amount plus a specified make-whole premium and accrued interest. The US Notes and the Company's guarantee of the Euro Notes are senior unsecured obligations of the Company and rank pari passu with all existing and future senior debt and senior to all existing and future subordinated indebtedness of the Company.

On June 3, 2021, Wabtec Transportation Netherlands B.V. ("Wabtec Netherlands") issued €500 million of 1.25% Senior Notes due in 2027, which are fully and unconditionally guaranteed by the Company. The Euro Notes were issued at 99.267% of face value. Interest on the Euro Notes accrues at a rate of 1.25% per annum and is payable annually beginning December 3,

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2021. The Company incurred approximately $4 million of deferred financing costs related to the issuance of the Euro Notes for total net proceeds of approximately $599 million after consideration of the discount.

On June 29, 2020, the Company issued $500 million of 3.20% Senior Notes due in 2025 (the "2025 Notes"). The 2025 Notes were issued at 99.892% of face value. Interest on the 2025 Notes accrues at a rate of 3.20% per annum and is payable semi-annually on June 15 and December 15 of each year beginning December 15, 2020. The proceeds were used to redeem outstanding variable rate debt. The Company incurred $2 million of deferred financing costs related to the issuance of the 2025 Notes.

The indentures under which the Senior Notes were issued contain covenants and restrictions which limit, subject to certain exceptions, certain sale and leaseback transactions with respect to principal properties, the incurrence of secured debt without equally and ratably securing the Senior Notes, and certain merger and consolidation transactions. The covenants do not require the Company to maintain any financial ratios or specified levels of net worth or liquidity. The US Notes are fully and unconditionally guaranteed, jointly and severally, on an unsecured basis by each of the Company's subsidiaries that is a guarantor under the Senior Credit Facility.

The Company is in compliance with the restrictions and covenants in the indentures under which the Senior Notes were issued and expects that these restrictions and covenants will not be any type of limiting factor in executing our operating activities.

Cash Pooling

Wabtec aggregates the Company's domestic cash position on a daily basis. Outside the United States, the Company uses cash pooling arrangements with banks to help manage our liquidity requirements. In these pooling arrangements, Wabtec subsidiary “Participants” agree with a single bank that the cash balances of any of the pool Participants with the bank will be subject to a full right of set-off against amounts other Participants owe the bank, and the bank provides for overdrafts as long as the net balance for all Participants does not exceed an agreed-upon level. Typically, each Participant pays interest on outstanding overdrafts and receives interest on cash balances. The Company's Consolidated Balance Sheets reflect cash, net of bank overdrafts, under all pooling arrangements.

Letters of Credit and Bank Guarantees

In the ordinary course of its business, the Company arranges for certain types of bank guarantees and letters of credit, such as performance bonds, bid bonds and financial guarantees, that are issued by certain banks and insurance companies to support customer contracts. The outstanding amount, including the letters of credit issued under the credit facility, were $791 million and $737 million at December 31, 2021 and 2020, respectively.

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10. EMPLOYEE BENEFIT PLANS

Defined Benefit Pension Plans

The Company sponsors defined benefit pension plans that cover certain U.S., Canadian, German, and United Kingdom employees and which provide benefits of stated amounts for each year of service of the employee. The Company uses a December 31 measurement date for the plans.

The following tables provide information regarding the Company’s significant defined benefit pension plans summarized by U.S. and international components.

Obligations and Funded Status

						U.S.												International
In millions						2021						2020						2021						2020
Change in projected benefit obligation
Obligation at beginning of year						$	(43)					$	(41)					$	(385)					$	(347)
Service cost						—						—						(4)						(4)
Interest cost						(1)						(1)						(4)						(6)
Employee contributions						—						—						(1)						—
Plan settlements and amendments						—						—						1						(2)
Benefits paid						3						3						13						14
Actuarial gain (loss)						2						(4)						15						(22)
Effect of currency rate changes						—						—						9						(18)
Obligation at end of year						$	(39)					$	(43)					$	(356)					$	(385)
Change in plan assets
Fair value of plan assets at beginning of year						$	36					$	34					$	305					$	270
Actual return on plan assets						2						4						11						25
Employer contributions						5						1						11						10
Employee contributions						—						—						1						1
Benefits paid						(3)						(3)						(13)						(14)
Settlements and other						—						—						(3)						2
Effect of currency rate changes						—						—						(5)						11
Fair value of plan assets at end of year						$	40					$	36					$	307					$	305
Funded status
Fair value of plan assets						$	40					$	36					$	307					$	305
Benefit obligations						(39)						(43)						(356)						(385)
Funded status						$	1					$	(7)					$	(49)					$	(80)
Amounts recognized in the statement of financial position consist of:
Noncurrent assets						$	1					$	—					$	17					$	14
Current liabilities						—						—						(2)						(3)
Noncurrent liabilities						—						(7)						(64)						(91)
Net amount recognized						$	1					$	(7)					$	(49)					$	(80)
Amounts recognized in Accumulated other comprehensive loss, before tax consist of:
Prior service cost						—						—						(1)						(1)
Net actuarial loss						(16)						(19)						(70)						(90)
Net amount recognized						$	(16)					$	(19)					$	(71)					$	(91)

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The aggregate accumulated benefit obligation for the U.S. pension plans was $38 million and $42 million as of December 31, 2021 and 2020, respectively. The aggregate accumulated benefit obligation for the international pension plans was $345 million and $372 million as of December 31, 2021 and 2020, respectively.

						U.S.												International
In millions						2021						2020						2021						2020
Information for pension plans with accumulated benefit obligations in excess of Plan assets:
Projected benefit obligation						N/A						$	(43)					$	(107)					$	(316)
Accumulated benefit obligation						N/A						(42)						(97)						(304)
Fair value of plan assets						N/A						36						41						222
Information for pension plans with projected benefit obligations in excess of plan assets:
Projected benefit obligation						N/A						$	(43)					$	(112)					$	(317)
Accumulated benefit obligation						N/A						(42)						(101)						(305)
Fair value of plan assets						N/A						36						45						224

Components of Net Periodic Benefit Costs

						U.S.																		International
In millions						2021						2020						2019						2021						2020						2019
Service cost						$	—					$	—					$	—					$	4					$	4					$	3
Interest cost						1						1						2						4						6						7
Expected return on plan assets						(1)						(1)						(2)						(13)						(12)						(12)
Amortization of net loss						1						1						1						4						3						3
Settlement and curtailment losses recognized						—						—						—						1						—						—
Net periodic benefit cost						$	1					$	1					$	1					$	—					$	1					$	1

Interest cost is recorded in Interest expense, net on the Consolidated Statements of Income. Expected return on plan assets, Amortization of net loss, and Settlement and curtailment losses recognized are recorded within Other expense, net on the Consolidated Statements of Income.

Other Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income during 2021 are as follows:

In millions						U.S.						International
Net gain arising during the year						$	2					$	13
Effect of exchange rates and other						—						2
Total benefit recognized in Other comprehensive income						$	2					$	15
Total benefit recognized in Net periodic benefit cost and Other comprehensive income						$	1					$	15

The weighted average assumptions in the following table represent the rates used to develop the actuarial present value of the projected benefit obligation for the year listed.

						U.S.																		International
						2021						2020						2019						2021						2020						2019
Discount rate						2.87		%				2.47		%				3.27		%				1.97		%				1.39		%				1.84		%
Expected return on plan assets						5.00		%				5.35		%				5.35		%				4.27		%				4.43		%				5.01		%
Rate of compensation increase						3.00		%				3.00		%				3.00		%				2.70		%				2.65		%				2.64		%

The discount rate is based on settling the pension obligation with high grade, high yield corporate bonds, and the rate of compensation increase is based on actual experience. The expected return on plan assets is based on historical performance as well as expected future rates of return on plan assets considering the current investment portfolio mix and the long-term investment strategy.

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The amounts of net actuarial loss and prior service cost included in other comprehensive loss expected to be recognized as components of periodic benefit costs in 2022 are not material.

Pension Plan Assets

The Company has established formal investment policies for the assets associated with our pension plans. Objectives include maximizing long-term return at acceptable risk levels and diversifying among asset classes. Asset allocation targets are based on periodic asset liability study results which help determine the appropriate investment strategies. The investment policies permit variances from the targets within certain parameters. The plan assets consist primarily of equity security funds, debt security funds, insurance contracts, and temporary cash and cash equivalent investments. The assets held in these funds are generally actively managed and are valued at the net asset value per share multiplied by the number of shares held as of the measurement date. (See Note 17 “Fair Value Measurement” included herein). Plan assets by asset category at December 31, 2021 and 2020 are as follows:

						U.S.												International
In millions						2021						2020						2021						2020
Pension Plan Assets
Equity security funds						$	10					$	19					$	87					$	75
Debt security funds						27						16						194						198
Insurance Contracts						—						—						15						15
Cash and cash equivalents and other						3						1						11						17
Fair value of plan assets						$	40					$	36					$	307					$	305

The U.S. plan has a target asset allocation of 75% equity securities and 25% debt securities. The International plan has a target asset allocation of 10% equity securities, 22% debt securities and 68% in other investments. Investment policies are determined by the respective Plan’s Pension Committee and set forth in its Investment Policy. Rebalancing of the asset allocation occurs on a quarterly basis.

The following tables summarize our pension plan assets measured at fair value on a recurring basis by fair value hierarchy level (See Note 17):

						December 31, 2021
In millions						NAV						Level 1						Level 2						Level 3						Total
US:
Equity						$	—					$	10					$	—					$	—					$	10
Debt Securities						—						15						12						—						27
Cash and cash equivalents						—						3						—						—						3
International:
Equity						7						20						60						—						87
Debt Securities						—						4						190						—						194
Insurance Contracts						—						—						5						10						15
Cash and cash equivalents and other						—						6						5						—						11
Total						$	7					$	58					$	272					$	10					$	347

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						December 31, 2020
In millions						NAV						Level 1						Level 2						Level 3						Total
US:
Equity						$	—					$	19					$	—					$	—					$	19
Debt Securities						—						6						10						—						16
Cash and cash equivalents						—						1						—						—						1
International:
Equity						6						22						47						—						75
Debt Securities						—						3						195						—						198
Insurance Contracts						—						—						5						10						15
Cash and cash equivalents and other						—						9						8						—						17
Total						$	6					$	60					$	265					$	10					$	341

There were no material changes to the Level 3 assets during 2020 and 2021.

Cash Flows

The Company’s funding methods are based on governmental requirements and differ from those methods used to recognize pension expense. The Company expects to contribute $3 million to the international pension plan and does not expect to make a contribution to the U.S. pension plan during 2022.

Benefit payments expected to be paid to plan participants are as follows:

In millions						U.S.						International
Year ended December 31,
2022						$	3					$	14
2023						$	3					$	15
2024						$	3					$	15
2025						$	3					$	16
2026						$	3					$	16
2027 through 2031						$	12					$	90

Defined Contribution Plans

The Company participates in certain defined contribution plans. Costs recognized during 2021, 2020, and 2019 were approximately $55 million each year. The 401(k) savings plan is a participant directed defined contribution plan that holds shares of the Company’s stock as one of the investment options. At December 31, 2021 and 2020, the plan held on behalf of its participants approximately 387,000 shares with a market value of $36 million, and approximately 409,000 shares with a market value of $30 million, respectively.

11. INCOME TAXES

The Company is responsible for filing consolidated U.S., foreign and combined, unitary or separate state income tax returns. The Company is responsible for paying the taxes relating to such returns, including any subsequent adjustments resulting from the redetermination of such tax liabilities by the applicable taxing authorities.

The components of the income before income taxes for the Company’s domestic and foreign operations for the years ended December 31 are provided below:

						For the year ended December 31,
In millions						2021						2020						2019
Domestic						$	253					$	78					$	118
Foreign						484						479						329
Income before income taxes						$	737					$	557					$	447

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The consolidated provision for income taxes included in the Consolidated Statements of Income consisted of the following:

						For the year ended December 31,
In millions						2021						2020						2019
Current tax expense (benefit)
Federal						$	(81)					$	6					$	5
State						27						17						1
Foreign						138						93						141
						84						116						147
Deferred tax expense (benefit)
Federal						87						36						20
State						10						(2)						3
Foreign						(9)						(5)						(50)
						88						29						(27)
Total provision						$	172					$	145					$	120

A reconciliation of the United States federal statutory income tax rate to the effective income tax rate on operations for the years ended December 31 is provided below:

						For the year ended December 31,
In millions						2021						2020						2019
U.S. federal statutory rate						21.0		%				21.0		%				21.0		%
State taxes						0.3						2.6						0.8
Foreign						3.3						4.4						(0.4)
Research and development credit						(0.8)						(1.3)						(1.7)
U.S. net operating loss carryback						(3.4)						—						—
Changes in valuation allowance						3.0						(2.0)						3.5
U.S. tax reform provision						0.7						1.3						2.0
Transaction costs related to acquisitions						0.1						—						1.0
Other, net						(1.0)						—						0.7
Effective rate						23.2		%				26.0		%				26.9		%

The decrease in the effective tax rate is primarily the result of filing amended federal and state income tax returns in 2021. The Company amended the 2019 federal tax return to incorporate changes in tax regulations which generated a net operating loss that was carried back to tax years 2014 to 2016, which were at a higher federal tax rate. Other, net includes the impact of amended state returns reflecting changes in apportioned state income. These amendments resulted in a current year tax benefit. In addition, there was a decrease in the US tax reform provision resulting from the provisions of the Tax Cut and Jobs Act, a decrease in state tax expense and a decrease in foreign tax expense due to mix of taxable income which were partially offset by an increase in valuation allowances.

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Components of deferred tax assets and liabilities were as follows:

						December 31,
In millions						2021						2020
Deferred income tax assets:
Accrued expenses and reserves						$	44					$	39
Warranty reserve						53						51
Deferred compensation/employee benefits						62						43
Right-of-use asset						76						70
Pension and postretirement obligations						24						26
Property, plant & equipment						—						48
Inventory						46						45
Net operating loss carry forwards						102						83
Other						102						46
Gross deferred income tax assets						509						451
Less: Valuation allowance						(64)						(42)
Total deferred income tax assets						445						409
Deferred income tax liabilities:
Property, plant & equipment						85						—
Right-of-use liability						78						69
Intangibles						503						444
Total deferred income tax liabilities						666						513
Net deferred income tax liability						$	221					$	104

A valuation allowance is recorded when it is more likely than not that some portion or all of the deferred tax assets will not be realized.  As of December 31, 2021, the valuation allowance for certain foreign deferred tax asset carryforwards was $(64) million primarily in China, Denmark, France, the Netherlands, South Africa, and the United States. The increase in valuation allowance in 2021 is primarily related to state net operating loss carry-forwards that are not expected to be realized.

The Company has net operating loss carry-forwards in the amount of $311 million, of which $192 million are indefinite lived, $66 million expire within ten years and $53 million expire in various periods between December 31, 2032 to December 31, 2041.

As of December 31, 2021, the liability for income taxes associated with unrecognized tax benefits was $32 million, of which $18 million, if recognized, would favorably affect the Company’s effective income tax rate. As of December 31, 2020, the liability for income taxes associated with unrecognized tax benefits was $16 million, of which $15 million, if recognized, would favorably affect the Company’s effective income tax rate. A reconciliation of the beginning and ending amount of the liability for income taxes associated with unrecognized tax benefits follows:

In millions						2021						2020						2019
Gross liability for unrecognized tax benefits at beginning of year						$	16					$	17					$	9
Gross increases - unrecognized tax benefits in prior periods						19						4						10
Gross decreases - audit settlement during year						(1)						(5)						—
Gross decreases - expiration of audit statute of limitations						(2)						—						(2)
Gross liability for unrecognized tax benefits at end of year						$	32					$	16					$	17

The Company includes interest and penalties related to unrecognized tax benefits in income tax expense. As of December 31, 2021 and 2020, the total interest and penalties accrued was approximately $5 million.

With limited exception, the Company is no longer subject to examination by various U.S. and foreign taxing authorities for years before 2016. At this time, the Company believes that it is reasonably possible that unrecognized tax benefits of approximately $5 million may change within the next 12 months due to the expiration of statutory review periods and current examinations.

 

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12. EARNINGS PER SHARE

The computation of earnings per share from operations is as follows:

						For the Year Ended December 31,
In millions, except per share data						2021						2020						2019
Numerator
Net income attributable to Wabtec common shareholders - basic						$	556					$	413					$	325
Add: dividends declared - preferred shares						—						—						1
Net income attributable to Wabtec common shareholders - diluted						$	556					$	413					$	326
Denominator
Weighted average shares outstanding - basic						187.7						189.9						170.5
Effect of dilutive securities:
Assumed conversion of preferred shares						—						—						6.4
Assumed conversion of dilutive stock-based compensation plans						0.4						0.5						0.4
Weighted average shares outstanding - diluted						188.1						190.4						177.3
Net income per common share attributable to Wabtec shareholders
Basic						$	2.96					$	2.18					$	1.91
Diluted						$	2.96					$	2.17					$	1.84

The Company’s non-vested restricted stock contains rights to receive non-forfeitable dividends, and thus are participating securities requiring the two-class method of computing earnings per share. The calculation of earnings per share for common stock shown above excludes the income attributable to the non-vested restricted stock from the numerator resulting in a variance between net income used in the numerator and Net income attributable to Wabtec shareholders shown within the Consolidated Statements of Income. Additionally, the weighted average share counts in the denominator excludes the dilutive impact of the respective non-vested restricted stock.

Approximately 0.4 million, and 0.3 million outstanding shares of Common Stock for the years ended December 31, 2020 and 2019, respectively, were not included in the computation of year-to-date diluted earnings per share because their exercise price exceeded the average market price of the Company's common stock.

13. STOCK-BASED COMPENSATION PLANS

As of December 31, 2021, the Company maintains employee stock-based compensation plans for stock options, restricted stock, and incentive stock units as governed by the 2011 Stock Incentive Compensation Plan, as amended and restated (the “2011 Plan”) and the 2000 Stock Incentive Plan, as amended (the “2000 Plan”).  The 2011 Plan has a term through May 10, 2027 and as of December 31, 2021 the number of shares available for future grants under the 2011 Plan was 6,399,200 shares, which includes remaining shares to grant under the 2000 Plan. The Company also maintains a 1995 Non-Employee Directors’ Fee and Stock Option Plan as amended and restated (“the Directors Plan”). The Directors Plan, as amended, authorizes a total of 1,000,000 shares of Common Stock to be issued. Under the Directors Plan options issued become exercisable over a three-year vesting period and expire ten years from the date of grant, and restricted stock issued under the plan vests one year from the date of grant. The amount of restricted stock issued to non-employee directors as compensation for directors’ fees was as follows: 18,142 shares for 2021; 23,152 shares for 2020; and 15,729 shares for 2019. The total number of shares issued under the Directors Plan as of December 31, 2021 was 951,175 shares. 

Stock-based compensation expense for all of the plans was $46 million, $20 million and $50 million for the years ended December 31, 2021, 2020 and 2019, respectively. The Company recognized associated tax benefits related to the stock-based compensation plans of $1 million, $2 million and $1 million for the respective periods. Included in the stock-based compensation expense for 2021 above is $3 million of expense related to stock options, $13 million related to non-vested restricted stock, $6 million related to restricted stock units, $1 million related to units issued for Directors’ fees and $23 million of expense related to incentive stock units. At December 31, 2021, unamortized compensation expense related to those stock options, non-vested restricted shares and incentive stock units expected to vest totaled $38 million and will be recognized over a weighted period of 1.3 years.

Stock Options Stock options are granted to eligible employees and directors at the fair market value, which is the average of the high and low Wabtec stock price on the date of grant. Under the 2011 Plan and the 2000 Plan, options become exercisable over a three year vesting period and expire 10 years from the date of grant.  

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The following table summarizes the Company’s stock option activity and related information for the 2011 Plan, the 2000 Plan and Directors Plan for the years ended December 31: 

						Options						Weighted Average Exercise Price						Weighted Average Remaining Contractual Life						Aggregate Intrinsic value (in millions)
Outstanding at December 31, 2018						466,677						$	61.04					5.7						$	4
Granted						134,450						$	70.44											$	1
Exercised						(4,868)						$	22.45											—
Canceled						(8,235)						$	73.00											—
Outstanding at December 31, 2019						588,024						$	63.36					5.7						$	9
Granted						136,506						$	77.75											—
Exercised						(86,145)						$	35.47											—
Canceled						(85,716)						$	73.73											—
Outstanding at December 31, 2020						552,669						$	69.82					6.1						$	4
Granted						126,794						$	81.21											—
Exercised						(113,728)						$	50.38											—
Canceled						(33,820)						$	73.53											—
Outstanding at December 31, 2021						531,915						$	75.40					6.5						$	9
Exercisable at December 31, 2021						308,591						$	73.39					6.1						$	6

Options outstanding at December 31, 2021 were as follows:

 

Range of exercise prices						Number of Options Outstanding						Weighted Average Exercise Price of Options Outstanding						Weighted Average Remaining Contractual Life						Number of Options Currently Exercisable						Weighted Average Exercise Price of Options Currently Exercisable
35.00 - 50.00						35,002						$	47.80					1.1						35,002						$	47.80
50.00 - 65.00						40,317						$	59.09					4.6						37,217						$	60.52
65.00 - 80.00						248,483						$	74.43					6.9						143,862						$	73.37
Over 80.00						208,113						$	84.36					7.3						92,510						$	88.28
						531,915						$	75.40					6.5						308,591						$	73.39

 The fair value of each option grant is estimated on the date of grant using the Black-Scholes option-pricing model with the following weighted-average assumptions:

						For the year ended December 31,
						2021						2020						2019
Dividend yield						0.60		%				0.60		%				0.66		%
Risk-free interest rate						0.8		%				1.5		%				2.6		%
Stock price volatility						36.1		%				28.1		%				25.8		%
Expected life (years)						5.0						5.0						5.0
Weighted average fair value of options granted during the year						$	25.01					$	21.05					$	19.54

The dividend yield is based on the Company’s dividend rate and the current market price of the underlying common stock at the date of grant. Expected life in years is determined from historical stock option exercise data. Expected volatility is based on the historical volatility of the Company’s stock. The risk-free interest rate is based on the 7 years U.S. Treasury bond rates for the expected life of the option.

Restricted Stock and Incentive Stock  Beginning in 2006 the Company adopted a restricted stock program. As provided for under the 2011 and 2000 Plans, eligible employees are granted restricted stock that generally vests over three years from the date of grant. Under the Directors Plan, restricted stock units vest one year from the date of grant.

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In addition, the Company has issued incentive stock units to eligible employees that vest upon attainment of certain cumulative three-year performance goals. Based on the Company’s performance for each three year period then ended, the incentive stock units can vest and be awarded ranging from 0% to 200% of the initial incentive stock units granted. The incentive stock units included in the table below represent the number of shares that are expected to vest based on the Company’s estimate for meeting those established performance targets. As of December 31, 2021, the Company estimates that it will achieve 33%, 121% and 117% for the incentive stock awards expected to vest based on performance for the three year periods ending December 31, 2021, 2022, and 2023, respectively, and has recorded incentive compensation expense accordingly. If estimates of the number of these stock units expected to vest changes in a future accounting period, cumulative compensation expense could increase or decrease and will be recognized in the current period for the elapsed portion of the vesting period and would change future expense for the remaining vesting period.

Compensation expense for the non-vested restricted stock and incentive stock units is based on the closing price of the Company’s common stock on the date of grant and recognized over the applicable vesting period.

The following table summarizes the restricted stock activity and related information for the 2011 Plan, the 2000 Plan, and Directors Plan, and incentive stock units activity and related information for the 2011 Plan and the 2000 Plan with related information for the years ended December 31:

						Restricted Stock and Units						Incentive Stock Awards						Weighted Average Grant Date Fair Value
Outstanding at December 31, 2018						445,089						415,242						$	75.51
Granted						608,813						259,950						$	70.61
Vested						(235,406)						(119,835)						$	71.65
Adjustment for incentive stock awards expected to vest						—						80,403						$	78.04
Canceled						(27,465)						(63,758)						$	74.04
Outstanding at December 31, 2019						791,031						572,002						$	73.64
Granted						283,587						250,197						$	75.68
Vested						(345,859)						(147,069)						$	77.45
Adjustment for incentive stock awards expected to vest						—						(331,004)						$	71.32
Canceled						(72,753)						(73,481)						$	72.83
Outstanding at December 31, 2020						656,006						270,645						$	73.80
Granted						235,902						241,467						$	81.64
Vested						(350,955)						(37,672)						$	71.82
Adjustment for incentive stock awards expected to vest						—						180,767						$	76.26
Canceled						(33,255)						(48,106)						$	76.24
Outstanding at December 31, 2021						507,698						607,101						$	78.06

 

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14. ACCUMULATED OTHER COMPREHENSIVE LOSS

Comprehensive income comprises both net income and the change in equity from transactions and other events and circumstances from non-owner sources.

The changes in Accumulated other comprehensive loss by component, net of tax, for the years ended December 31, 2021, 2020, and 2019 are as follows:

In millions						Foreign currency translation						Derivative contracts						Pension and post retirement benefit plans						Total
Balance at December 31, 2018						$	(202)					$	—					$	(55)					$	(257)
Other comprehensive loss before reclassifications						(106)						(3)						(19)						(128)
Amounts reclassified from Accumulated other comprehensive loss						—						—						2						2
Other comprehensive loss, net						(106)						(3)						(17)						(126)
Balance at December 31, 2019						$	(308)					$	(3)					$	(72)					$	(383)
Other comprehensive income (loss) before reclassifications						48						6						(13)						41
Amounts reclassified from Accumulated other comprehensive loss						—						—						3						3
Other comprehensive income (loss), net						48						6						(10)						44
Balance at December 31, 2020						$	(260)					$	3					$	(82)					$	(339)
Other comprehensive (loss) income before reclassifications						(136)						(8)						13						(131)
Amounts reclassified from Accumulated other comprehensive loss						—						—						4						4
Other comprehensive (loss) income, net						(136)						(8)						17						(127)
Balance at December 31, 2021						$	(396)					$	(5)					$	(65)					$	(466)

Amounts reclassified from Accumulated other comprehensive loss are recognized in "Other income, net" with the tax impact recognized in "Income tax expense" on the Consolidated Statements of Income.

 

15. LEASES

The Company leases certain, property, buildings and equipment. For leases with terms greater than 12 months, the Company records the related asset and obligation at the present value of lease payments. Many of the Company's leases include rental escalation clauses, renewal options, and/or termination options that are factored into our determination of lease payments when appropriate. The Company does not separate lease and non-lease components. Operating lease expense for the years ended December 31, 2021, 2020, and 2019 were $59 million, $57 million, and $54 million, respectively. New operating leases of $80 million and $68 million were added during the years ended December 31, 2021 and 2020, respectively. Wabtec does not have material financing leases, short-term or variable leases or sublease income.

As most of the Company's leases do not provide a readily stated discount rate, the Company must estimate the rate to discount lease payments using its incremental borrowing rate. The Company has established discount rates by geographic region ranging from 1% to 9%.

Scheduled payments of Operating lease liabilities are as follows:

In millions			Operating Leases
2022			$	60
2023			52
2024			47
2025			40
2026			33
Thereafter			113
Total lease payments			345
Less: Present value discount			(27)
Present value lease liabilities			$	318

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The following table summarizes the remaining lease term and discount rate assumptions used to develop the present value of lease liabilities:

			December 31, 2021						December 31, 2020
Weighted-average remaining lease term (years)
Operating leases			8.2						7.4
Weighted-average discount rate
Operating leases			2.3		%				2.7		%

16. WARRANTIES

The following table reconciles the changes in the Company’s product warranty reserve as follows:

In millions						2021						2020
Balance at beginning of year						$	279					$	268
Acquisitions						2						4
Warranty expense						116						130
Warranty claim payments						(124)						(131)
Foreign currency impact						(14)						8
Balance at end of year						$	259					$	279

 

17. FAIR VALUE MEASUREMENT AND DERIVATIVE INSTRUMENTS

ASC 820 “Fair Value Measurements and Disclosures” defines fair value, establishes a framework for measuring fair value and explains the related disclosure requirements. ASC 820 indicates, among other things, that a fair value measurement assumes that the transaction to sell an asset or transfer a liability occurs in the principal market for the asset or liability or, in the absence of a principal market, the most advantageous market for the asset or liability and defines fair value based upon an exit price model.

Valuation Hierarchy. ASC 820 establishes a valuation hierarchy for disclosure of the inputs to valuation used to measure fair value. This hierarchy prioritizes the inputs into three broad levels as follows. Level 1 inputs are quoted prices (unadjusted) in active markets for identical assets or liabilities. Level 2 inputs are quoted prices for similar assets and liabilities in active markets or inputs that are observable for the asset or liability, either directly or indirectly through market corroboration, for substantially the full term of the financial instrument. Level 3 inputs are unobservable inputs based on the Company’s assumptions used to measure assets and liabilities at fair value. A financial asset or liability’s classification within the hierarchy is determined based on the lowest level input that is significant to the fair value measurement.

The Company’s cash and cash equivalents are highly liquid investments purchased with an original maturity of three months or less and are considered Level 1 on the fair value valuation hierarchy. The fair value of cash and cash equivalents approximated the carrying value at December 31, 2021 and December 31, 2020. The Company’s defined benefit pension plan assets consist primarily of equity security funds, debt security funds, insurance contracts, and temporary cash and cash equivalent investments. These investments are comprised of a number of investment funds that invest in a diverse portfolio of assets including equity securities, corporate and governmental bonds, and money markets.  Trusts are valued at the net asset value (“NAV”) as determined by their custodian.  NAV represents the accumulation of the unadjusted quoted close prices on the reporting date for the underlying investments divided by the total shares outstanding at the reporting dates (see Note 10).  The Senior Notes are considered Level 2 based on the fair value valuation hierarchy. Contingent consideration related to the GE Transportation acquisition is considered Level 3 based on the fair value valuation hierarchy. At December 31, 2021 and 2020, $110 million and $130 million, respectively, were classified as "Other accrued liabilities" on the Company's Consolidated Balance Sheets and $141 million and $218 million, respectively, were included within long-term liabilities shown as "Contingent consideration" on the Company's Consolidated Balance Sheets. The fair value approximates the carrying value at December 31, 2021 and 2020.

Hedging Activities In the normal course of business, the Company is exposed to market risks related to interest rates, commodity prices and foreign currency exchange rate fluctuations, which may adversely affect our operating results and financial position. At times, we limit these risks through the use of derivatives such as cross-currency swaps, foreign currency forward contracts, interest rate swaps, commodity swaps and options. These hedging contracts are valued using broker quotations, or market transactions in either the listed or over-the counter markets. As such, these derivative instruments are classified within level 2. In accordance with our policy, derivatives are only used for hedging purposes. We do not use derivatives for trading or speculative purposes.

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Foreign Currency Exchange Risk

The Company uses forward contracts to hedge forecasted foreign currency denominated sales of finished goods and future settlement of foreign currency denominated assets and liabilities. Derivatives used to hedge firm commitments relevant to sales and purchases and forecasted transactions to be realized with high probability that meet the criteria for hedge accounting are designated as cash flow hedges. The effective portion of gains and losses is deferred as a component of Accumulated other comprehensive loss and is recognized in earnings at the time the hedged item affects earnings, in the same line item as the underlying hedged item. For the years ended December 31, 2021, 2020 and 2019, the amounts reclassified into income were not material.

The Company has also established balance sheet risk management and net investment hedging programs to protect its balance sheet against foreign currency exchange rate volatility. We conduct our business worldwide in U.S. dollars and the functional currencies of our foreign subsidiaries, including euro, Indian rupee, British pound sterling, Australian dollars and several other foreign currencies. Changes in these foreign currency exchange rates could have a material adverse impact on our financial results that are reported in U.S. dollars. We are also exposed to foreign currency exchange rate risk related to our foreign subsidiaries, including intercompany loans denominated in non-functional currencies. We hedge these exposures using foreign currency swap contracts and cross-currency swaps to offset the potential income statement effects on intercompany loans denominated in non-functional currencies. These programs reduce but do not eliminate foreign currency exchange rate risk entirely.

The Company enters into certain derivative contracts in accordance with its risk management strategy that do not meet the criteria for hedge accounting, but which have the impact of largely mitigating foreign currency exposure. These foreign exchange contracts are accounted for on a full mark to market basis through earnings, with gains and losses recorded as a component of Other income, net. The net (loss) gain related to these contracts were $(5), $(1) and $2 million for the years ended December 31, 2021, 2020 and 2019, respectively. These contracts typically mature within one year.

The following table summarizes the assets, liabilities, gross notional amounts, fair values, and fair value hierarchy classification of the designated and non-designated hedges discussed in the above sections as of December 31, 2021, which are included in other current assets and liabilities on the Consolidated Balance Sheets:

									Fair Value												Gross Notional Amount
In millions			Level						Designated						Non-Designated						Designated						Non-Designated
Foreign Exchange Contracts
Other current assets			2						$	8					$	—					$	627					$	—
Other current liabilities			2						(1)						(2)						613						289
Cross-currency Swaps
Other current assets			2						—						—						14						—
Total									$	7					$	(2)					$	1,254					$	289

The following table summarizes the assets, liabilities, gross notional amounts, fair values, and fair value hierarchy classification of the designated and non-designated hedges discussed in the above sections as of December 31, 2020, which are included in other current assets and liabilities on the Consolidated Balance Sheets:

									Fair Value												Gross Notional Amount
In millions			Level						Designated						Non-Designated						Designated						Non-Designated
Foreign Exchange Contracts
Other current assets			2						$	9					$	1					$	794					$	1
Other current liabilities			2						(4)						(2)						928						320
Cross-currency Swaps
Other current liabilities			2						(26)						—						613						—
Total									$	(21)					$	(1)					$	2,335					$	321

Interest Rate Risk

The Company may use interest rate swap contracts on certain investing and borrowing transactions to manage its net exposure to interest rate changes and to reduce its overall cost of borrowing. The Company does not use leveraged swaps and, in general, does not leverage any of its investment activities that would put principal capital at risk. For the years ended December 31, 2021, 2020 and 2019, the amounts reclassified into income were not material.

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Commodity Price Risk

The Company may use commodity forward swaps to manage its exposure to commodity price changes and to reduce its overall cost of manufacturing. For the years ended December 31, 2021, 2020 and 2019, the amounts reclassified into income were not material.

18. COMMITMENTS AND CONTINGENCIES

The Company is subject to a variety of environmental laws and regulations governing discharges to air and water, the handling, storage and disposal of hazardous or solid waste materials and the remediation of contamination associated with releases of hazardous substances. The Company believes its operations currently comply in all material respects with all of the various environmental laws and regulations applicable to our business; however, there can be no assurance that environmental requirements will not change in the future or that we will not incur significant costs to comply with such requirements.

Claims have been filed against the Company and certain of its affiliates in various jurisdictions across the United States by persons alleging bodily injury as a result of exposure to asbestos-containing products. The vast majority of the claims are submitted to insurance carriers for defense and indemnity, or to non-affiliated companies that retain the liabilities for the asbestos-containing products at issue. We cannot, however, assure that all of these claims will be fully covered by insurance, or that the indemnitors or insurers will remain financially viable. Our ultimate legal and financial liability with respect to these claims, as is the case with other pending litigation, cannot be estimated. A limited number of claims are not covered by insurance, nor are they subject to indemnity from non-affiliated parties. Management believes that the costs of the Company’s asbestos-related cases will not be material to the Company’s overall financial position, results of operations and cash flows.

Xorail, Inc., a wholly owned subsidiary of the Company (“Xorail”), has received notices from Denver Transit Constructors (“DTC”) alleging breach of contract related to the operating of constant warning wireless crossings, and late delivery of the Train Management & Dispatch System (“TMDS”) for the Denver Eagle P3 Project, which is owned by the Denver Regional Transit District ("RTD"). No damages have been asserted for the alleged late delivery of the TMDS, and no formal claim has been filed; Xorail has successfully completed a remediation plan concerning the TMDS issues. With regard to the wireless crossing issue, as of September 8, 2017, DTC alleged that total damages were $37 million through July 31, 2017 and are continuing to accumulate. The majority of the damages stems from a delay in approval of the wireless crossing system by the Federal Railway Administration ("FRA") and the Public Utility Commission ("PUC"), resulting in the use of flaggers at all of the crossings pending approval of the wireless crossing system and certification of the crossings. DTC has alleged that the delay is due to Xorail's failure to achieve constant warning times for the crossings in accordance with the approval requirements imposed by the FRA and PUC. Xorail has denied DTC's assertions, stating that its system satisfied the contractual requirements. Xorail has worked with DTC to modify its system and implement the FRA's and PUC's previously undefined approval requirements; the FRA and PUC have both approved modified wireless crossing system, and as of August 2018, DTC completed the process of certifying the crossings and eliminated the use of flaggers. DTC has not updated its notices against Xorail, nor have they filed any formal claim against Xorail. On September 21, 2018, DTC filed a complaint against RTD in Colorado state court for breach of contract related to non-payments and the costs for the flaggers, asserting a change-in-law arising from the FRA/PUC’s new certification requirements. DTC’s complaint generally supports Xorail’s position and does not name or implicate Xorail. DTC's claim against RTD proceeded to trial on September 21, 2020; the trial has been completed, included post-trial submission.

From time to time the Company is involved in litigation relating to claims arising out of its operations in the ordinary course of business. As of the date hereof, the Company is involved in no litigation that the Company believes will have a material adverse effect on its financial condition, results of operations or liquidity.

19. SEGMENT INFORMATION

The Company has two reportable segments—the Freight Segment and the Transit Segment. The key factors used to identify these reportable segments are the organization and alignment of the Company’s internal operations, the nature of the products and services, and customer type. Initiatives to integrate GE Transportation operations into Wabtec including recent restructuring programs announced in late 2019 resulted in changes to the Company's organizational structure and the financial reporting utilized by the Company's chief operating decision maker to assess performance and allocate resources; as a result, certain asset groups were reorganized from the Freight Segment to the Transit Segment and vice versa. The change in the Company’s reportable segments was effective in the fourth quarter of 2019 and is reflected below. The Company believes these changes better present Management's view of the business. The Company’s business segments are:

Freight Segment primarily builds new locomotives, manufactures and services components for new and existing freight cars and locomotives, rebuilds freight locomotives, supplies railway electronics, positive train control equipment, signal design and engineering services, and provides related heat exchange and cooling systems. Customers include large, publicly traded railroads, leasing companies, manufacturers of original equipment such as locomotives and freight cars, and utilities. We refer

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to sales of both goods, such as spare parts and equipment upgrades, and related services, such as monitoring, maintenance and repairs, as sales in our Services product line.

Transit Segment primarily manufactures and services components for new and existing passenger transit vehicles, typically regional trains, high speed trains, subway cars, light-rail vehicles and buses. It also refurbishes subway cars and provides heating, ventilation, and air conditioning equipment, and doors for buses and subways. Customers include public transit authorities and municipalities, leasing companies, and manufacturers of subway cars and buses around the world.

The Company evaluates its business segments’ operating results based on income from operations. Intersegment sales are accounted for at prices that are generally established by reference to similar transactions with unaffiliated customers. Corporate activities include general corporate expenses, elimination of intersegment transactions, interest income and expense and other unallocated charges.

Segment financial information for 2021 is as follows:
In million						Freight Segment						Transit Segment						Corporate Activities and Elimination						Total
Sales to external customers						$	5,239					$	2,583					$	—					$	7,822
Intersegment sales/(elimination)						48						33						(81)						—
Total sales						$	5,287					$	2,616					$	(81)					$	7,822
Income (loss) from operations						$	717					$	238					$	(79)					$	876
Interest expense and other, net						—						—						(139)						(139)
Income (loss) before income taxes						$	717					$	238					$	(218)					$	737
Depreciation and amortization						$	405					$	70					$	16					$	491
Capital expenditures						$	79					$	48					$	3					$	130
Segment assets						$	18,291					$	5,768					$	(5,605)					$	18,454

Segment financial information for 2020 is as follows:
In millions						Freight Segment						Transit Segment						Corporate Activities and Elimination						Total
Sales to external customers						$	5,082					$	2,474					$	—					$	7,556
Intersegment sales/(elimination)						49						37						(86)						—
Total sales						$	5,131					$	2,511					$	(86)					$	7,556
Income (loss) from operations						$	584					$	230					$	(69)					$	745
Interest expense and other, net						—						—						(188)						(188)
Income (loss) from operations before income taxes						$	584					$	230					$	(257)					$	557
Depreciation and amortization						$	393					$	67					$	13					$	473
Capital expenditures						$	70					$	40					$	26					$	136
Segment assets						$	15,393					$	6,395					$	(3,334)					$	18,454

Segment financial information for 2019 is as follows:
In millions						Freight Segment						Transit Segment						Corporate Activities and Elimination						Total
Sales to external customers						$	5,441					$	2,759					$	—					$	8,200
Intersegment sales/(elimination)						60						23						(83)						—
Total sales						$	5,501					$	2,782					$	(83)					$	8,200
Income (loss) from operations						$	643					$	214					$	(194)					$	663
Interest expense and other, net						—						—						(216)						(216)
Income (loss) before income taxes						$	643					$	214					$	(410)					$	447
Depreciation and amortization						$	330					$	62					$	9					$	401
Capital expenditures						$	105					$	64					$	17					$	186

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The following geographic area data as of and for the years ended December 31, 2021, 2020 and 2019, respectively, includes net sales based on product shipment destination and long-lived assets, which consist of plant, property and equipment, net of depreciation, resident in their respective countries:

						Net Sales																		Long-Lived Assets
In millions						2021						2020						2019						2021						2020
United States						$	3,321					$	3,161					$	3,381					$	983					$	1,039
Canada						462						372						733						6						9
Mexico						220						187						357						22						23
North America						4,003						3,720						4,471						1,011						1,071
South America						301						217						218						32						32
United Kingdom						300						314						376						45						51
Germany						383						351						340						70						82
France						286						252						294						54						59
Italy						196						172						206						29						31
Switzerland						88						83						89						2						2
Other Europe						427						405						387						55						60
Europe						1,680						1,577						1,692						255						285
India						531						441						504						151						164
Australia / New Zealand						386						366						301						9						12
China						228						225						290						32						30
Other Asia / Middle East						177						199						216						—						1
Egypt						32						360						228						—						—
Other Africa						72						138						105						4						4
Russia / CIS						412						313						175						3						2
Total						$	7,822					$	7,556					$	8,200					$	1,497					$	1,601

Net sales to external customers by product line are as follows:

In millions						2021						2020						2019
Freight Segment:
Services						$	2,430					$	2,068					$	1,991
Equipment						1,302						1,531						1,700
Components						867						819						1,073
Digital Electronics						640						664						677
Total Freight Segment sales						$	5,239					$	5,082					$	5,441
Transit Segment:
Original Equipment Manufacturer						1,193						1,139						1,287
Aftermarket						1,390						1,335						1,472
Total Transit Segment sales						$	2,583					$	2,474					$	2,759

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20. OTHER INCOME, NET

The components of Other income, net are as follows:

						For the year ended December 31,
In millions						2021						2020						2019
Foreign currency gain (loss)						$	8					$	(8)					$	(14)
Equity income						20						10						8
Expected return on pension assets/amortization						9						10						10
Other miscellaneous income (expense)						1						(1)						(1)
Total Other income, net						$	38					$	11					$	3

 

89

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SCHEDULE II

WESTINGHOUSE AIR BRAKE TECHNOLOGIES CORPORATION

VALUATION AND QUALIFYING ACCOUNTS

For each of the three years ended December 31 

In millions						Balance at beginning of period						Charged/ (credited) to expense						Charged/ (credited) to other accounts (1)						Deductions from reserves (2)						Balance at end of period
2021
Allowance for doubtful accounts						$	37					$	3					$	(1)					$	7					$	32
Valuation allowance-taxes						$	42					$	22					$	—					$	—					$	64
2020
Allowance for doubtful accounts						$	20					$	18					$	—					$	1					$	37
Valuation allowance-taxes						$	58					$	(16)					$	—					$	—					$	42
2019
Allowance for doubtful accounts						$	17					$	7					$	—					$	4					$	20
Valuation allowance-taxes						$	42					$	16					$	—					$	—					$	58

 

(1)Reserves of acquired/(sold) companies; valuation allowances for state and foreign deferred tax assets; impact of fluctuations in foreign currency exchange rates.

(2)Actual disbursements and/or charges.

Item 16.			FORM 10-K SUMMARY

Not applicable.

90

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SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Company has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

 

						WESTINGHOUSE AIR BRAKE TECHNOLOGIES CORPORATION
Date:			February 17, 2022			By:			/S/    RAFAEL SANTANA
									Rafael Santana,
									President and Chief Executive Officer, and Director

91

---

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the Company and in the capacities and on the dates indicated.

			Signature and Title			Date
By			/S/    ALBERT J. NEUPAVER			February 17, 2022
			Albert J. Neupaver, Chairman of the Board
By			/S/    RAFAEL SANTANA			February 17, 2022
			Rafael Santana, President and Chief Executive Officer and Director (Principal Executive Officer)
By			/S/    JOHN A. OLIN			February 17, 2022
			John A. Olin, Executive Vice President and Chief Financial Officer (Principal Financial Officer)
By			/S/    JOHN A. MASTALERZ			February 17, 2022
			John A. Mastalerz, Senior Vice President and Principal Accounting Officer
By			/S/    WILLIAM E. KASSLING			February 17, 2022
			William E. Kassling, Lead Director
By			/S/    LEE BANKS			February 17, 2022
			Lee Banks, Director
By			/S/    BYRON FOSTER			February 17, 2022
			Byron Foster, Director
By			/S/    LEE B. FOSTER, II			February 17, 2022
			Lee B. Foster, II, Director
By			/S/    LINDA A. HARTY			February 17, 2022
			Linda A. Harty, Director
By			/S/    BRIAN P. HEHIR			February 17, 2022
			Brian P. Hehir, Director
By			/S/    MICHAEL W. D. HOWELL			February 17, 2022
			Michael W. D. Howell, Director
By			/S/    ANN R. KLEE			February 17, 2022
			Ann R. Klee, Director

92

Exhibit 21.0

SUBSIDIARIES AND AFFILIATES

Company												Ownership Interest
A and M Signalling Services Private Limited						India						100		%
Aero Transportation Products, Inc						Independence, Missouri						100		%
AM General Contractors SpA						Genova, Italy						100		%
A M Rail Group Limited						Burton-on-Trent, UK						100		%
A M Signalling Design Limited						Burton-on-Trent, UK						100		%
Annax GmbH						Brunnthal, Germany						100		%
Annax Scheiz AG						Bern, Switzerland						100		%
Annax (Suzhou) Rail Systems Co., Ltd						Suzhou, China						100		%
Ateliers Hubert Gerken S.A.						Belgium						100		%
Austbreck Pty, Ltd.						Hallam, Victoria, Australia						100		%
Barber Steel Foundry Corp.						Rothbury, Michigan						100		%
Barber Tian Rui Railway Supply LLC						Park Ridge, Illinois						50		%
Bearward Engineering Limited						Northampton, UK						100		%
Becorit GmbH						Recklinghausen,Germany						100		%
Beijing Wabtec Huaxia Technology Company Ltd.						Beijing, China						100		%
Brecknell Willis & Co., Ltd.						Char, Somerset, UK						100		%
Brecknell Willis (Tianjin) Electrification Systems, Co., Ltd.						TianJin, China						100		%
Cambridge Forming and Cutting Ltd						Ontario, Canada						100		%
Changzhou CRRC Wabtec Diesel Engine Company Limited.						Changzhou, China						50		%
CoFren S.A.S.						Vierzon, France						100		%
CoFren S.r.l.						Avellino, Italy						100		%
Coleman Hydraulics Limited						Burton-on-Trent, UK						100		%
CZ-Carbon Prodcuts s.r.o.						Czech Republic						100		%
Datong Faiveley Railway Vehicle Equipment Co. Ltd.						Datong City, China						50		%
Deptol Limited						Dublin, Ireland						100		%
Durox Company						Strongville, Ohio						100		%
East Erie Commercial Railroad						Erie, Pennsylvania						100		%
E-Carbon Asia Sdn. Bhd.						China						50		%
E-Carbon Far East Limited						Hong Kong						100		%
E-Carbon S.A.						Belgium						100		%
Electrical Carbon UK Limited						United Kingdom						100		%
Evand Pty Ltd.						Wetherill Park, Australia						100		%
Faiveley Rail Engineering Singapore Pte Ltd						Singapore						50		%
Faiveley Transport Amiens						Amiens, France						100		%
Faiveley Transport Asia Pacific Ltd.						Hong Kong						100		%
Faiveley Transport Australia Ltd.						Rosehill, Australia						100		%
Faiveley Transport Birkenhead Ltd.						Birkenhead, UK						100		%
Faiveley Transport Bochum GmbH						Bochum, Germany						100		%
Faiveley Transport Canada Inc.						Montreal, Canada						100		%
Faiveley Transport Czech a.s.						Plzen, Czech Republic						100		%
Faiveley Transport Chile SpA.						Santiago, Chile						100		%
Faiveley Transport Far East Ltd						Hong Kong						100		%
Faiveley Transport Holding Gmbh & co KG						Whitten, Germany						100		%
Faiveley Transport Iberica SA						La Selva del Camp, Spain						100		%
Faiveley Transport Italia Spa						Turin, Italy						98.7		%
Faiveley Transport Korea Ltd						Seoul, Korea						100		%
Faiveley Transport Leipzig GmbH & Co-KG						Scheuditz, Germany						100		%
Faiveley Transport Metro Technology Shanghai Co Ltd.						Shanghai, China						100		%

---

Exhibit 21.0

Faiveley Transport Metro Technology Taiwan Ltd.						Taipei, Taiwan						100		%
Faiveley Transport Metro Technology Thailand Co Ltd.						Bangkok, Thailand						100		%
Faiveley Transport Nordic AB						Landskrona, Sweden						100		%
Faiveley Transport North America Inc.						Greenville, South Carolina						100		%
Faiveley Transport Nowe GmbH						Elze, Germany						100		%
Faiveley Transport NSF						Neuville en Ferrain, France						100		%
Faiveley Transport Plezn s.r.o.						Nyrany, Czech Republic						100		%
Faiveley Transport Polska zoo						Poznan, Poland						100		%
Faiveley Transport Rail Technologies India Private Limited						Himachal Pradesh, India						100		%
Faiveley Transport Railway Trading Co. Ltd						Shanghai, China						100		%
Faiveley Transport SAS.						Gennevilliers, France						100		%
Faiveley Transport Schwab AG						Schaffhausen, Switzerland						100		%
Faiveley Transport Schweiz AG						Hagendorf, Switzerland						100		%
Faiveley Transport Service Maroc						Casablanca, Morocco						100		%
Faiveley Transport Systems Technology (Beijing) Co. Ltd.						Beijing, China						100		%
Faiveley Transport Tamworth Ltd.						Tamworth, Staffordshire, UK						100		%
Faiveley Transport Tours						Saint Pierre des Corps, France						100		%
Faiveley Transport Tremosnice s.r.o.						Treomsnice, Czech Republic						100		%
Faiveley Transport USA Inc.						Greenville, South Carolina						100		%
Faiveley Transport Verwaltungs GmbH						Scheuditz, Germany						100		%
F.I.P. Pty Ltd.						Sydney, Australia						100		%
FIP Brakes South Africa (Proprietary) Limited						Kempton Park, South Africa						100		%
Fandstan Electric Group, Ltd.						London, UK						100		%
Fandstan Electric, Ltd.						London, UK						100		%
F.T.M.T. Singapore Pte Ltd						Singapore						100		%
G&B Specialties, Inc.						Berwick, Pennsylvania						100		%
Gerken Group S.A.						Belgium						100		%
Gerken Nordiska Karma Aktiebolag						Sweden						49		%
Gerken SAS						France						100		%
GE (Shijiazhuang) Mining Equipment Co., Ltd.						Shijiazhuang, China						100		%
GE Transportation, A Wabtec Company						Wilmington, Delaware						100		%
GE Transportation Deutschland, a Wabtec Company, GmbH						Frankfurt am Main, Germany						100		%
Graham White Manufacturing Company						Salem, Virginia						100		%
Huatie Wabtec Faiveley (Qingdao) Transport Equipment Co., Ltd.						Beijing, China						49		%
Hunan Times Wabtec Transportation Equipment Co., Ltd..						Changsha, Hunan, China						50		%
Industrea Chile S.A..						Chile						100		%
Industrea Hong Kong YL Limited..						Hong Kong, China						100		%
Industrea Mining Equipment Pty Ltd.						Springfield Central, Australia						100		%
Industrea Mining Technology Pty Ltd.						Fountaindale, Australia						100		%
Industrea Pty Ltd						North Sydney, Australia						100		%
Industrea Wadam (Beijing) Mining Equipment Technical Services Co., Ltd						Beijing, China						100		%
Industrea Wadam Pty Ltd.						Burnley, Australia						100		%
InTrans Engineering Limited						Kolkata, West Bengal, India						100		%
Jiaxiang HK Smart Technology Co. Ltd.						Hong Kong, China						100		%
JSC Lokomotiv Kurastyru Zauyty						Kazakhstan						50		%
Keelex 351 Limited						Barton Under Needwood, England						100		%
Komatsu Wabtec Mining Systems, LLC.						Wilmington, Delaware						50		%
LH Access Technology Limited						Barton Under Needwood, England						100		%
LH Group Services Limited						Barton Under Needwood, England						100		%
LH Group Wheelsets Limited						Barton Under Needwood, England						100		%

---

Exhibit 21.0

Limited Liability Company Transportation Ukraine						Ukraine						100		%
Locomotive Manufacturing and Services, S.A. de C.V						Mexico City, Mexico						100		%
Longwood Elastomers, Inc.						Wytheville, Virginia						100		%
Longwood Elastomers, S.A.						Soria, Spain						100		%
Longwood Engineered Products, Inc.						Greensboro, North Carolina						100		%
Longwood Industries, Inc.						Brenham, Texas						100		%
Longwood International, Inc.						Greensboro, North Carolina						100		%
LWI Elastomers International, S.L.						Madrid, Spain						100		%
LWI International B.V.						Amsterdam, Netherlands						100		%
Manufacturas Del Noreste S.A. de C.V						Portillo Saltillo, Mexico						100		%
Medagao (Suzhou) Rubber-Metal Components Co., Ltd						Suzhou, Jiangsu, China						100		%
Melett (Changzhou) Precision Machinery Co. Limited						Jiangsu, China						100		%
Melett Limited						South Yorkshire, England						100		%
Melett North America, Inc						Memphis, Tennessee						100		%
Melett Polska Spolka z Ograniczona odpowiedzialnoscia						Bydgos, Poland						100		%
Merz Industrietechnik GmbH						Österreich, Austria						100		%
Metalocaucho, S.L.						Urnieta, Gipuzkoa, Spain						100		%
Mors Smitt France S.A.S.						Sable sur Sarthe, France						100		%
Mors Smitt Holding S.A.S.						Utrecht, Netherlands						100		%
Mors Smitt Technologies, Inc.						Buffalo Grove, Illinois						100		%
Mors Smitt UK Ltd.						West Midlands UK						100		%
MorsSmitt Asia, Ltd.						Kwun Tong, Hong Kong						100		%
Motive Equipment, Inc						Milwaukee, Wisconsin						100		%
MotivePower, LLC						Boise, Idaho						100		%
MTC India Rubber Metal Components Private Limited						Bangalore, India						100		%
Napier Turbochargers Australia Pty Ltd.						Sydney, Australia						100		%
Napier Turbochargers Limited						Lincoln, Lincolnshire, UK						100		%
Nordco Enterprises, Inc.						Wilmington, DE						100		%
Nordco Holdings Company.						Wilmington, DE						100		%
Nordco Holdings Inc.						Wilmington, DE						100		%
Nordco Inc.						Wilmington, DE						100		%
Nordco Rail Services, LLC						Hartford, CT						100		%
o.o.o. Faiveley Transport						Leningrad Region, Russia						100		%
Orion Engineering Ltd						Hong Kong, China						100		%
Pantrac GmbH						Germany						100		%
Parts Supply Limited						Leicestershire, England						100		%
Poli S.r.l.						Camisano, Italy						100		%
Pride Bodies Ltd						Ontario, Canada						100		%
PT Transportation Solutions Indonesia.						Indonesia						100		%
Qingdao Faiveley Sri Rail Brake Co. Ltd.						Qingdao, Shadong, China						50		%
Railcar Management, LLC						Atlanta, Georgia						100		%
Railroad Controls Construction, Inc.						Benbrook, Texas						100		%
Railroad Friction Products Corporation						Maxton, North Carolina						100		%
RCLP Acquisition LLC						Benbrook, Texas						100		%
Relay Monitoring Systems Pty Ltd						Mulgrave, Australia						100		%
Relco Land Holdings of Cedar Rapids, LLC						Albia, Iowa						100		%

---

Exhibit 21.0

Relco Locomotives, Inc						Albia, Iowa						100		%
RFPC Holding Corp						Wilmington, Delaware						100		%
Ricon Corp.						San Fernando, California						100		%
SAB Wabco (Investments) Ltd.						Birkenhead, UK						100		%
SAB Wabco UK Ltd.						Birkenhead, UK						100		%
Schaefer Equipment, Inc.						Warren, Ohio						100		%
SCT Europe Ltd.						Kirkcaldy, Fife, UK						100		%
SCT Technology LLC						Wilmington, Delaware						100		%
Semvac A/S						Odense, Denmark						100		%
Shenyang CRRC Wabtec Railway Brake Technology Company, Ltd.						Shenyang, China						50		%
Shijiazhuang Jiaxiang Precision Machinery Co. Ltd.						Shijiazhuang, China						100		%
ShipXpress Technologies (Private) Limited						Nugegoda, Sri Lanka						100		%
Shuttlewagon, Inc.						Wilmington, DE						100		%
Standard Car Truck Company						Park Ridge, Illinois						100		%
Standard Car Truck-Asia, Inc.						Chaoyang District, Beijing						100		%
Stemmann Technik France SAS						Buchelay, France						100		%
Stemmann-Technik GmbH						Schüttorf, Germany						100		%
Stemmann-Technik Hong Kong Company Limited						Hong Kong, China						100		%
Stemmann Polska SP Zoo						Katy Wroclawskie, Poland						100		%
Stemmann-Technik (Shanghai) Ltd.						Shanghai, China						100		%
Thermal Transfer Acquisition Corporation						Duquesne, Pennsylvania						100		%
TMT Holding AB						Stockholm, Sweden						50.5		%
Transportation Eastern Europe S.r.l						Chisinau, Moldova						100		%
Transportation Global Egypt L.L.C						Egypt						100		%
Transportation Global LLC						Wilmington, Delaware						100		%
Transportation Holdings UK Limited						Altrincham, England						100		%
Transportation IP Holdings, LLC						Wilmington, Delaware						100		%
Transportation Kazakhstan Limited Liability Partnership						Kazakhstan						100		%
Transportation Poland sp. z o.o.						Poland						100		%
Transportation Rus Limited Liability Company						Moscow, Russia						100		%
Transportation Services and Technologies Nigeria Ltd						Lagos, Nigeria						100		%
Transportation Systems and Services Cameroon Ltd						Cameroon						100		%
Transportation Systems Pakistan (Private) Limited						Lahore, Pakistan						100		%
Transportation Systems Services Operations Inc						Carson City, Nevada						100		%
TransTech of South Carolina, Inc						Piedmont, South Carolina						100		%
TRSP Systems and Services Kenya Ltd						Kenya						100		%
TRSP Systems (Malaysia) SDN. BHD						Malaysia						100		%
Turbonetics Holdings, Inc.						Moorpark, California						100		%
Vapor Europe S.r.l.						Sassuolo, Modena, Italy						100		%
Vapor Ricon Europe Ltd.						Loughborough, Leicestershire, UK						100		%
Wabtec Assembly Services S. de R.L. de C.V.						San Luis Potosi, Mexico						100		%
Wabtec Australia Pty. Limited						Rydalmere, Australia						100		%
Wabtec (Beijing) Investment Co. Ltd.						Beijing, Fengtai District, China						100		%
Wabtec Brasil Fabricacao e Manutencao de Equipamentos Ltda						Belo Horizonte, Brazil						100		%
Wabtec Corporation						Wilmerding, Pennsylvania						100		%
Wabtec Canada, Inc.						Ontario, Canada						100		%
Wabtec China Friction Holding Limited						Hong Kong, China						100		%

---

Exhibit 21.0

Wabtec China Rail Products & Services Holding Limited						Hong Kong, China						100		%
Wabtec Control Systems Pty Ltd						Osborne Park, Australia						100		%
Wabtec de Mexico, S. de R.L. de C.V.						San Luis Potosi, Mexico						100		%
Wabtec Economic and Trading (Shanghai) Co., Ltd.						Shanghai, China						100		%
Wabtec Egypt for Commercial Agencies.						New Cairo, Egypt						100		%
Wabtec Europe GmbH						Brunn am Gebirge, Austria						100		%
Wabtec Faiveley Rayli Sistemleri Ltd. Sti						Istanbul, Turkey						100		%
Wabtec Faiveley Turkey Ulaşım Sistemleri ve Hizmetleri A.Ş						Istanbul, Turkey						100		%
Wabtec France S.A.S.						Paris, France						100		%
Wabtec FRG GmbH						Recklinghausen, Germany						100		%
Wabtec FRG Holdings GmbH & Co. KG						Recklinghausen, Germany						100		%
Wabtec Finance LLC						Wilmington, Delaware						100		%
Wabtec Golden Bridge Transportation Technology (Hangzhou) Company, Ltd.						Xinwan Town, China						100		%
Wabtec Greenville Real Estate LLC						Greenville, South Carolina						100		%
Wabtec Holding LLC						Wilmington, Delaware						100		%
Wabtec Holdings South Africa (Pty) Ltd						Johannesburg, South Africa						75		%
Wabtec India Industrial Private Limited						New Delhi, India						100		%
Wabtec India Transportation Private Limited						Kolkata, India						100		%
Wabtec International, Inc.						Wilmington, Delaware						100		%
Wabtec Locomotive Private Limited..						New Delhi, India						75		%
Wabtec Manufacturing, LLC						Wilmington, Delaware						100		%
Wabtec Manufacturing Mexico S. de R.L. de C.V.						San Luis Potosí, Mexico						100		%
Wabtec Manufacturing Solutions, LLC						Wilmington, Delaware						100		%
Wabtec Mozambique Limitada						Nacala, Mozambique						100		%
Wabtec MZT AD Skopje						Skopje, Macedonia						87		%
Wabtec Poland Sp. z.o.o.						Poznan, Poland						100		%
Wabtec Netherlands BV						Amsterdam, Netherlands						100		%
Wabtec Netherlands Holdings BV						Amsterdam, Netherlands						100		%
Wabtec Railway Electronics Corporation						Halifax, Nova Scotia, Canada						100		%
Wabtec Railway Electronics Holdings, LLC						Wilmington, Delaware						100		%
Wabtec Railway Electronics Manufacturing, Inc						Wilmington, Delaware						100		%
Wabtec Railway Electronics, Inc						Wilmington, Delaware						100		%
Wabtec Receivables LLC						Wilmington, Delaware						100		%
Wabtec Rus LLC						Moscow, Russia						100		%
Wabtec Servicios Administrativos, S.A. de C.V.						San Luis Potosi, Mexico						100		%
Wabtec South Africa Proprietary Limited						Kempton Park, South Africa						100		%
Wabtec South Africa Technologies (Pty) Ltd						Johannesburg, South Africa						100		%
Wabtec Switzerland IP Holdings GmbH						Zug, Switzerland						100		%
Wabtec Texmaco Rail Private Limited						Kolkata, India						60		%
Wabtec Transportation Canada Inc.						Ontario, Canada						100		%
Wabtec Transportation Egypt Services LLC.						New Cairo, Egypt						100		%
Wabtec Transportation Engines Holding B.V. .						Breda, Netherlands						100		%
Wabtec Transportation Global Holdings, LLC						Wilmington, Delaware						100		%
Wabtec Transportation Group Holdings Pty Ltd.						Richmond, Australia						100		%
Wabtec Transportation Holding GmbH						Zug, Switzerland						100		%
Wabtec Transportation Netherlands B.V..						Amsterdam, Netherlands						100		%
Wabtec Transportation Netherlands Holdings B.V..						Amsterdam, Netherlands						100		%
Wabtec Transportation System (Shenyang) Co. Ltd.						Shenyang, China						100		%

---

Exhibit 21.0

Wabtec Transportation Systems Co. Ltd.						Beijing, China						100		%
Wabtec Transportation Systems Limited.						Altrincham, England						100		%
Wabtec Transportation Systems, LLC.						Wilmington, Delaware						100		%
Wabtec UK Holdings Limited						Staffordshire, England						100		%
Wabtec UK Investments Limited						Manchester, England						100		%
Wabtec UK Limited						Doncaster, S.Yorkshire, UK						100		%
Wabtec US Rail Holdings, Inc.						Wilmington, Delaware						100		%
Wabtec US Rail, Inc.						Wilmington, Delaware						100		%
Wabtec-UWC Ltd						Limassol, Cyprus						51		%
Westinghouse Railway Holdings (Canada) Inc.						Toronto, Ontario, Canada						100		%
Workhorse Rail, LLC						Pittsburgh, Pennsylvania						100		%
Xorail, Inc.						Jacksonville, Florida						100		%
Young Touchstone Company						Oak Creek, Wisconsin						100		%
Zhongshan MorsSmitt Relay Ltd.						Zhongshan, China						100		%

 

Exhibit 22.0

Guarantor Subsidiaries of Westinghouse Air Brake Technologies

The obligations under the Company's US Notes, the Senior Credit Facility, and 364 Day Facility have been fully and unconditionally guaranteed by certain of the Company's U.S. subsidiaries. Each guarantor is 100% owned by the parent company, with the exception of GE Transportation, a Wabtec Company, which has 15,000 shares outstanding of Class A Non-Voting Preferred Stock held by General Electric Company. The Euro Notes are issued by Wabtec Netherlands and are fully and unconditionally guaranteed by the Company.

As of December 31, 2021:

The US Notes and Senior Credit Facility

Issuer:    Westinghouse Air Brake Technologies Corporation

Guarantors:    GE Transportation, a Wabtec Company

RFPC Holding Corp.

Schaefer Equipment, Inc.

Standard Car Truck Company

Transportation IP Holdings, LLC

Transportation Systems Services Operations Inc.

Wabtec Holding Corp.

Wabtec Railway Electronics Holdings, LLC

Wabtec Transportation Systems, LLC

Workhorse Rail, LLC

The Euro Notes

Issuer:        Wabtec Transportation Netherlands B.V.

Guarantor:    Westinghouse Air Brake Technologies Corporation

Exhibit 23.1

Consent of Independent Registered Public Accounting Firm

We consent to the incorporation by reference in the following Registration Statements:

(1)Registration Statement (Form S-8 No. 333-53753) pertaining to the 1998 Employee Stock Purchase Plan of Westinghouse Air Brake Technologies Corporation,

(2)Registration Statement (Form S-8 No. 333-39159) pertaining to the 1997 Executive Retirement Plan of Westinghouse Air Brake Technologies Corporation,

(3)Registration Statement (Form S-8 No. 333-02979) pertaining to the 1995 Non-Employee Directors’ Fee and Stock Option Plan of Westinghouse Air Brake Technologies Corporation,

(4)Registration Statement (Form S-8 No. 333-115014) pertaining to the 2004 Bonus Plan Agreements of Westinghouse Air Brake Technologies Corporation,

(5)Registration Statement (Form S-8 No. 333-137985) pertaining to the 2000 Stock Incentive Plan of Westinghouse Air Brake Technologies Corporation,

(6)Registration Statement (Form S-8 No. 333-41840) pertaining to the 2000 Stock Inventive Plan of Westinghouse Air Brake Technologies Corporation,

(7)Registration Statement (Form S-8 No. 333-40468) pertaining to the 1995 Non-Employee Directors’ Fee and Stock Option Plan of Westinghouse Air Brake Technologies Corporation,

(8)Registration Statement (Form S-8 No. 333-35744) pertaining to the 2000 Savings Plan of Westinghouse Air Brake Technologies Corporation,

(9)Registration Statement (Form S-8 No. 333-89086) pertaining to the 2002 Employee Stock Ownership Plan of Westinghouse Air Brake Technologies Corporation,

(10)Registration Statement (Form S-8 No. 333-179857) pertaining to the 2011 Stock Incentive Plan of Westinghouse Air Brake Technologies Corporation,

(11)Registration Statement (Form S-8 No. 219662) pertaining to the 1995 Non-Employee Directors' Fee and Stock Option Plan of Westinghouse Air Brake Technologies Corporation,

(12)Registration Statement (Form S-8 No. 219663) pertaining to the 2011 Stock Incentive Plan of Westinghouse Air Brake Technologies Corporation,

(13)Registration Statement (Form S-3 No. 333-231125) of Westinghouse Air Brake Technologies Corporation,

(14)Registration Statement (Form S-3 No. 333-240166) of Westinghouse Air Brake Technologies Corporation,

(15)Registration Statement (Form S-3 No. 333-248731) of Westinghouse Air Brake Technologies Corporation,

(16)Registration Statement (Form S-8 No. 333-253256) pertaining to the 2011 Stock Incentive Plan (as Amended and Restated effective May 15, 2020) (as amended by Amendment Number One dated January 14, 2021) of Westinghouse Air Brake Technologies Corporation, and

(17)Registration Statement (Form S-3 No. 333-256296) of Westinghouse Air Brake Technologies Corporation;

of our reports dated February 17, 2022, with respect to the consolidated financial statements and schedule of Westinghouse Air Brake Technologies Corporation and the effectiveness of internal control over financial reporting of Westinghouse Air Brake Technologies Corporation included in this Annual Report (Form 10-K) of Westinghouse Air Brake Technologies Corporation for the year ended December 31, 2021.

/s/ Ernst & Young LLP

Pittsburgh, Pennsylvania

February 17, 2022

Exhibit 31.1

CERTIFICATION

I, Rafael Santana, certify that:

1. I have reviewed this annual report on Form 10-K of Westinghouse Air Brake Technologies Corporation.

2. Based on my knowledge, this annual report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this annual report;

3. Based on my knowledge, the financial statements, and other financial information included in this annual report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this annual report;

4. The registrant’s other certifying officers and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and we have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this annual report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this annual report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this annual report based on such evaluation; and

(d) Disclosed in this annual report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officers and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of registrant’s board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: February 17, 2022

 

By:			/S/    RAFAEL SANTANA
Name:			Rafael Santana
Title:			President and Chief Executive Officer

Exhibit 31.2

CERTIFICATION

I, John A. Olin, certify that:

1. I have reviewed this annual report on Form 10-K of Westinghouse Air Brake Technologies Corporation.

2. Based on my knowledge, this annual report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this annual report;

3. Based on my knowledge, the financial statements, and other financial information included in this annual report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this annual report;

4. The registrant’s other certifying officers and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and we have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this annual report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this annual report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this annual report based on such evaluation; and

(d) Disclosed in this annual report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officers and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of registrant’s board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: February 17, 2022

 

By:			/S/    JOHN A. OLIN
Name:			John A. Olin
Title:			Executive Vice President and Chief Financial Officer

Exhibit 32.1

CERTIFICATION

Pursuant to 18 U.S.C. § 1350, the undersigned officers of Westinghouse Air Brake Technologies Corporation (the “Company”), hereby certify, to the best of their knowledge, that the Company’s Annual Report on Form 10-K for the year ended December 31, 2021 (the “Report”) fully complies with the requirements of Section 13(a) or 15(d), as applicable, of the Securities Exchange Act of 1934 and that the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

 

By:						/s/    RAFAEL SANTANA
						Rafael Santana President and Chief Executive Officer
Date:						February 17, 2022
By:						/s/   JOHN A. OLIN
						John A. Olin Executive Vice President and Chief Financial Officer
Date:						February 17, 2022

v3.22.0.1

COVER PAGE - USD ($) $ in Billions	12 Months Ended
	Dec. 31, 2021	Feb. 11, 2022	Jun. 30, 2021
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Current Fiscal Year End Date	--12-31
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Entity Registrant Name	WESTINGHOUSE AIR BRAKE TECHNOLOGIES CORP
Entity Incorporation, State or Country Code	DE
EIN	25-1615902
Entity Address, Address Line One	30 Isabella Street
Entity Address, City or Town	Pittsburgh
Entity Address, State or Province	PA
Entity Address, Postal Zip Code	15212
City Area Code	412
Local Phone Number	825-1000
Title of 12(b) Security	Common Stock, par value $.01 per share
Trading Symbol	WAB
Security Exchange Name	NYSE
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Emerging Growth Company	false
Entity Small Business	false
ICFR Auditor Attestation Flag	true
Entity Shell Company	false
Entity Public Float			$ 15.4
Entity Common Stock, Shares Outstanding (in shares)		185,290,114
Documents Incorporated by Reference	Portions of the Proxy Statement for the registrant’s Annual Meeting of Stockholders to be held on May 18, 2022 are incorporated by reference into Part III of this Form 10-K.
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Document Fiscal Year Focus	2021
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v3.22.0.1

Audit Information	12 Months Ended
	Dec. 31, 2021
Auditor Information [Abstract]
Auditor Name	Ernst & Young LLP
Auditor Location	Pittsburgh, Pennsylvania
Auditor Firm ID	42

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v3.22.0.1

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Assets
Cash and cash equivalents	$ 473	$ 599
Accounts receivable	1,085	969
Unbilled accounts receivable	392	443
Inventories	1,689	1,642
Other current assets	193	227
Total current assets	3,832	3,880
Property, plant and equipment, net	1,497	1,601
Goodwill	8,587	8,485
Other intangible assets, net	3,705	3,869
Other noncurrent assets	833	619
Total noncurrent assets	14,622	14,574
Total Assets	18,454	18,454
Liabilities
Accounts payable	1,012	909
Customer deposits	629	643
Accrued compensation	335	242
Accrued warranty	228	240
Current portion of long-term debt	2	447
Other accrued liabilities	704	745
Total current liabilities	2,910	3,226
Long-term debt	4,056	3,792
Accrued postretirement and pension benefits	77	114
Deferred income taxes	288	168
Contingent consideration	141	218
Other long term liabilities	743	783
Total Liabilities	8,215	8,301
Commitments and Contingencies (Note 18)
Equity
Common stock, $.01 par value; 500.0 shares authorized: 226.9 and 226.9 shares issued and 185.8 and 188.9 outstanding at December 31, 2021 and 2020, respectively	2	2
Additional paid-in capital	7,916	7,881
Treasury stock, at cost, 41.1 and 38.0 shares, at December 31, 2021 and 2020, respectively	(1,306)	(1,010)
Retained earnings	4,055	3,589
Accumulated other comprehensive loss	(466)	(339)
Total Westinghouse Air Brake Technologies Corporation shareholders’ equity	10,201	10,123
Noncontrolling interest	38	30
Total Equity	10,239	10,153
Total Liabilities and Equity	$ 18,454	$ 18,454

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- Definition The amount allocated to treasury stock. Treasury stock is common and preferred shares of an entity that were issued, repurchased by the entity, and are held in its treasury. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6405834&loc=d3e23315-112656 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.29,30) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655 + Details Name: us-gaap_TreasuryStockValue Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

v3.22.0.1

CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Dec. 31, 2021	Dec. 31, 2020
Statement of Financial Position [Abstract]
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	500,000,000.0	500,000,000.0
Common stock, shares issued (in shares)	226,900,000	226,900,000
Common stock, shares outstanding (in shares)	185,800,000	188,900,000
Treasury stock, shares (in shares)	41,100,000	38,000,000.0

X

- Definition Face amount or stated value per share of common stock. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details Name: us-gaap_CommonStockParOrStatedValuePerShare Namespace Prefix: us-gaap_ Data Type: dtr-types:perShareItemType Balance Type: na Period Type: instant

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- Definition The maximum number of common shares permitted to be issued by an entity's charter and bylaws. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details Name: us-gaap_CommonStockSharesAuthorized Namespace Prefix: us-gaap_ Data Type: xbrli:sharesItemType Balance Type: na Period Type: instant

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- Definition Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details Name: us-gaap_CommonStockSharesIssued Namespace Prefix: us-gaap_ Data Type: xbrli:sharesItemType Balance Type: na Period Type: instant

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- Definition Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=123467817&loc=d3e21463-112644 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details Name: us-gaap_CommonStockSharesOutstanding Namespace Prefix: us-gaap_ Data Type: xbrli:sharesItemType Balance Type: na Period Type: instant

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- Definition Number of common and preferred shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. This stock has no voting rights and receives no dividends. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.29,30) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655 + Details Name: us-gaap_TreasuryStockShares Namespace Prefix: us-gaap_ Data Type: xbrli:sharesItemType Balance Type: na Period Type: instant

v3.22.0.1

CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Net sales:
Total net sales	$ 7,822	$ 7,556	$ 8,200
Cost of sales:
Total cost of sales	(5,453)	(5,419)	(5,922)
Gross profit	2,369	2,137	2,278
Operating expenses:
Selling, general and administrative expenses	(1,030)	(948)	(1,167)
Engineering expenses	(176)	(162)	(210)
Amortization expense	(287)	(282)	(238)
Total operating expenses	(1,493)	(1,392)	(1,615)
Income from operations	876	745	663
Other income and expenses:
Interest expense, net	(177)	(199)	(219)
Other income, net	38	11	3
Income before income taxes	737	557	447
Income tax expense	(172)	(145)	(120)
Net income	565	412	327
Less: Net (income) loss attributable to noncontrolling interest	(7)	2	0
Net income attributable to Wabtec shareholders	$ 558	$ 414	$ 327
Basic
Net income attributable to Wabtec shareholders (in dollars per share)	$ 2.96	$ 2.18	$ 1.91
Diluted
Net income attributable to Wabtec shareholders (in dollars per share)	$ 2.96	$ 2.17	$ 1.84
Weighted average shares outstanding
Basic (in shares)	187.7	189.9	170.5
Diluted (in shares)	188.1	190.4	177.3
Product
Net sales:
Total net sales	$ 6,205	$ 6,233	$ 6,908
Cost of sales:
Total cost of sales	(4,545)	(4,629)	(5,128)
Services
Net sales:
Total net sales	1,617	1,323	1,292
Cost of sales:
Total cost of sales	$ (908)	$ (790)	$ (794)

X

- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 + Details Name: us-gaap_AmortizationOfIntangibleAssets Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

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v3.22.0.1

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Statement of Comprehensive Income [Abstract]
Net income attributable to Wabtec shareholders	$ 558	$ 414	$ 327
Foreign currency translation (loss) gain	(136)	48	(106)
Unrealized (loss) gain on derivative contracts	(10)	8	(4)
Unrealized gain (loss) on pension benefit plans and post-retirement benefit plans	21	(14)	(22)
Other comprehensive (loss) income before tax	(125)	42	(132)
Income tax (expense) benefit related to components of other comprehensive (loss) income	(2)	2	6
Other comprehensive (loss) income, net of tax	(127)	44	(126)
Comprehensive income attributable to Wabtec shareholders	$ 431	$ 458	$ 201

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v3.22.0.1

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Operating Activities
Net income	$ 565	$ 412	$ 327
Adjustments to reconcile net income to net cash provided by operations:
Depreciation and amortization	491	473	401
Stock-based compensation expense	46	20	50
Below market intangible amortization	(50)	(88)	(82)
Deferred income taxes	88	29	(27)
(Gain) Loss on disposal of property, plant and equipment	(4)	10	16
Changes in operating assets and liabilities, net of acquisitions
Accounts receivable and unbilled accounts receivable	(76)	315	(6)
Inventories	(41)	181	256
Accounts payable	109	(269)	(144)
Accrued income taxes	(4)	57	11
Accrued liabilities and customer deposits	84	(91)	(12)
Other assets and liabilities	(135)	(265)	226
Net cash provided by operating activities	1,073	784	1,016
Investing Activities
Purchase of property, plant and equipment	(130)	(136)	(186)
Proceeds from disposal of property, plant and equipment	25	21	4
Acquisitions of business, net of cash acquired	(435)	(40)	(2,996)
Net cash used for investing activities	(540)	(155)	(3,178)
Financing Activities
Proceeds from debt, net of issuance costs	5,391	3,878	3,982
Payments of debt	(5,552)	(4,077)	(3,424)
Repurchase of stock	(300)	(207)	0
Payment of contingent consideration on acquisitions	(99)	(115)	(10)
Cash dividends	(92)	(93)	(82)
Other financing activities	(1)	(5)	(5)
Net cash (used for) provided by financing activities	(653)	(619)	461
Effect of changes in currency exchange rates	(6)	(15)	(37)
Decrease in cash	(126)	(5)	(1,738)
Cash and cash equivalents, beginning of year	599	604	2,342
Cash and cash equivalents, end of year	$ 473	$ 599	$ 604

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- Definition Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 6.I.7) -URI http://asc.fasb.org/extlink&oid=122134291&loc=d3e330036-122817 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 6.I.Fact.1) -URI http://asc.fasb.org/extlink&oid=122134291&loc=d3e330036-122817 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(h)(1)(Note 1)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 6.I.Fact.2) -URI http://asc.fasb.org/extlink&oid=122134291&loc=d3e330036-122817 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32639-109319 + Details Name: us-gaap_DeferredIncomeTaxExpenseBenefit Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

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- Definition The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585 + Details Name: us-gaap_DepreciationAndAmortization Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

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- Definition Amount of increase (decrease) from effect of exchange rate changes on cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage; held in foreign currencies; including, but not limited to, disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 230 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=123444420&loc=d3e33268-110906 + Details Name: us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

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- Definition Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585 + Details Name: us-gaap_GainLossOnSaleOfPropertyPlantEquipment Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

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- Definition The increase (decrease) during the reporting period in the aggregate amount of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585 + Details Name: us-gaap_IncreaseDecreaseInAccountsPayable Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

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- Definition The increase (decrease) during the reporting period in amount due within one year (or one business cycle) from customers for the credit sale of goods and services. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585 + Details Name: us-gaap_IncreaseDecreaseInAccountsReceivable Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

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- Definition The increase (decrease) during the period in the amount due for taxes based on the reporting entity's earnings or attributable to the entity's income earning process (business presence) within a given jurisdiction. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585 + Details Name: us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

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- Definition The increase (decrease) during the reporting period in the aggregate value of all inventory held by the reporting entity, associated with underlying transactions that are classified as operating activities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585 + Details Name: us-gaap_IncreaseDecreaseInInventories Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

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- Definition Amount of increase (decrease) in operating assets after deduction of operating liabilities classified as other. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585 + Details Name: us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

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- Definition Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3521-108585 + Details Name: us-gaap_NetCashProvidedByUsedInFinancingActivities Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

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- References No definition available. + Details Name: us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

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- Definition Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3521-108585 + Details Name: us-gaap_NetCashProvidedByUsedInInvestingActivities Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

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- Definition Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3536-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3521-108585 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585 + Details Name: us-gaap_NetCashProvidedByUsedInOperatingActivities Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: na Period Type: duration

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- Definition Amount of cash outflow, not made soon after acquisition date of business combination, to settle contingent consideration liability up to amount recognized at acquisition date, including, but not limited to, measurement period adjustment and less amount paid soon after acquisition date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3291-108585 + Details Name: us-gaap_PaymentForContingentConsiderationLiabilityFinancingActivities Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

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- Definition The cash outflow to reacquire common stock during the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3291-108585 + Details Name: us-gaap_PaymentsForRepurchaseOfCommonStock Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

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- Definition Amount of cash outflow in the form of ordinary dividends to common shareholders of the parent entity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3291-108585 + Details Name: us-gaap_PaymentsOfDividendsCommonStock Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

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- Definition The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3213-108585 + Details Name: us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

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- Definition The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3213-108585 + Details Name: us-gaap_PaymentsToAcquirePropertyPlantAndEquipment Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

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- Definition The cash inflow associated with security instrument that either represents a creditor or an ownership relationship with the holder of the investment security with a maturity of beyond one year or normal operating cycle, if longer. Includes proceeds from (a) debt, (b) capital lease obligations, (c) mandatory redeemable capital securities, and (d) any combination of (a), (b), or (c). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a),(b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3255-108585 + Details Name: us-gaap_ProceedsFromIssuanceOfLongTermDebtAndCapitalSecuritiesNet Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

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- Definition The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3179-108585 + Details Name: us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

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v3.22.0.1

CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) $ in Millions	Total	Common Stock	Additional Paid-in Capital	Treasury Stock	Retained Earnings	Accumulated Other Comprehensive Loss	Non-controlling Interest
Beginning balance (in shares) at Dec. 31, 2018		132,349,534		(35,734,588)
Balance beginning of period at Dec. 31, 2018	$ 2,870	$ 1	$ 915	$ (816)	$ 3,023	$ (257)	$ 4
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividends	(82)				(82)
Proceeds from treasury stock issued from the exercise of stock options and other benefit plans, net of tax	(6)		(15)	$ 9
Proceeds from treasury stock issued from the exercise of stock options and other benefit plans, net of tax, shares (in shares)				486,601
Stock based compensation	38		38
Net income (loss)	327				327
Other comprehensive income (loss), net of tax	(126)					(126)
Acquisition of GE Transportation (in shares)		94,597,646
Acquisition of GE Transportation	6,971	$ 1	6,939				31
Other	2						2
Ending balance (in shares) at Dec. 31, 2019		226,947,180		(35,247,987)
Balance end of period at Dec. 31, 2019	9,994	$ 2	7,877	$ (807)	3,268	(383)	37
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividends	(93)				(93)
Proceeds from treasury stock issued from the exercise of stock options and other benefit plans, net of tax	(5)		(9)	$ 4
Proceeds from treasury stock issued from the exercise of stock options and other benefit plans, net of tax, shares (in shares)				315,988
Stock based compensation	17		17
Net income (loss)	412				414		(2)
Other comprehensive income (loss), net of tax	43					44	(1)
Stock repurchase (in shares)				(3,127,698)
Stock repurchase	(207)			$ (207)
Other	(8)		(4)				(4)
Ending balance (in shares) at Dec. 31, 2020		226,947,180		(38,059,697)
Balance end of period at Dec. 31, 2020	10,153	$ 2	7,881	$ (1,010)	3,589	(339)	30
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividends	(92)				(92)
Proceeds from treasury stock issued from the exercise of stock options and other benefit plans, net of tax	(2)		(6)	$ 4
Proceeds from treasury stock issued from the exercise of stock options and other benefit plans, net of tax, shares (in shares)				244,541
Stock based compensation	41		41
Net income (loss)	565				558		7
Other comprehensive income (loss), net of tax	(127)					(127)
Stock repurchase (in shares)				(3,329,003)
Stock repurchase	(300)			$ (300)
Other	1						1
Ending balance (in shares) at Dec. 31, 2021		226,947,180		(41,144,159)
Balance end of period at Dec. 31, 2021	$ 10,239	$ 2	$ 7,916	$ (1,306)	$ 4,055	$ (466)	$ 38

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v3.22.0.1

CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Statement of Stockholders' Equity [Abstract]
Cash dividends, per share (in dollars per share)	$ 0.48	$ 0.48	$ 0.48

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v3.22.0.1

BUSINESS	12 Months Ended
	Dec. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
BUSINESS	BUSINESS Wabtec is one of the world’s largest providers of locomotives, value-added, technology-based equipment, systems and services for the global freight rail and passenger transit industries. Our highly engineered products, which are intended to enhance safety, improve productivity and reduce maintenance costs for customers, can be found on most locomotives, freight cars, passenger transit cars and buses around the world. Our core products and services are essential in the safe and efficient operation of freight rail and passenger transit vehicles. Wabtec is a global company with operations in over 50 countries and our products can be found in more than 100 countries throughout the world. In 2021, approximately 60% of the Company’s net sales came from customers outside the U.S. The COVID-19 pandemic had a materially adverse impact on our operations and business results for the years ended December 31, 2021, and 2020 which is discussed in more detail in the Results of Operations section in Part II, Item 7 of this report. COVID-19 has continued to impact our sales channels, supply chain, manufacturing operations, workforce, and other key aspects of our operations. Our top concern is, and remains, the health and well-being of our employees around the world. The outbreak and preventive measures taken to help curb the spread, including temporary plant closures during 2020 in China, India, Italy and other countries where outbreaks and stay-at-home orders were most prevalent, had an adverse impact on our operations and business results. Supply chain disruptions and labor availability have caused component and chip shortages resulting in an adverse effect on the timing of the Company’s revenue generation. Additionally, broad-based inflation, escalation of metals and commodities costs, transportation and logistics costs and labor costs have all resulted from the COVID-19 pandemic. The Company has implemented various mitigating actions to lessen the impact of supply chain disruptions caused by the COVID-19 pandemic. These actions include price escalations in long-term contracts, implementing price surcharges, driving operational efficiencies through various cost mitigation efforts and discretionary spend management, strategic sourcing alignments, and accelerating integration synergies where possible. The Company expects to continue to realize these increased costs over the next few quarters.

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v3.22.0.1

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	12 Months Ended
	Dec. 31, 2021
Accounting Policies [Abstract]
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Principles of Consolidation The consolidated financial statements include the accounts of the Company and all subsidiaries that it controls. For consolidated subsidiaries in which the Company's ownership is less than 100%, the outside shareholders' interests are shown as noncontrolling interests. These statements have been prepared in accordance with U.S. generally accepted accounting principles. Sales between subsidiaries are billed at prices consistent with sales to third parties and are eliminated in consolidation. Cash Equivalents Cash equivalents are highly liquid investments purchased with an original maturity of three months or less. Allowance for Doubtful Accounts The allowance for doubtful accounts receivable reflects our best estimate of expected losses inherent in our receivable portfolio determined on the basis of historical experience, relevant credit forecast information, changes to customer's solvency and other currently available evidence. The allowance for doubtful accounts was $32 million and $37 million as of December 31, 2021 and 2020, respectively. Inventories Inventories are stated at the lower of cost or net realizable value. Cost is determined under the first-in, first-out (FIFO) method. Inventory costs include material, labor and overhead. Property, Plant and Equipment Property, plant and equipment additions are stated at cost. Expenditures for renewals and improvements are capitalized. Expenditures for ordinary maintenance and repairs are expensed as incurred. The Company computes book depreciation principally on the straight-line method. Accelerated depreciation methods are utilized for income tax purposes. Leasing Arrangements The Company conducts a portion of its operations from leased facilities and finances certain equipment purchases through lease agreements. In those cases in which the lease term approximates the useful life of the leased asset or the lease meets certain other prerequisites, the leasing arrangement is classified as a financing lease. The remaining arrangements are treated as operating leases. Right-of-use lease assets are classified as long-term assets under the caption "Other noncurrent assets" and lease liabilities are classified under the captions "Other accrued liabilities" and "Other long-term liabilities" on the Consolidated Balance Sheets. Goodwill and Intangible Assets Goodwill and other intangible assets with indefinite lives are not amortized. Other intangibles (with definite lives) are amortized on a straight-line basis over their estimated economic lives. Amortizable intangible assets are reviewed for impairment when indicators of impairment are present. The Company tests goodwill and indefinite-lived intangible assets for impairment at the reporting unit level and at least annually. The Company performs its annual impairment test during the fourth quarter after the annual forecasting process is completed, and also tests for impairment whenever events or changes in circumstances indicate that the carrying value may not be recoverable. Periodically, Management of the Company assesses whether or not an indicator of impairment is present that would necessitate an impairment analysis be performed. Equity Method Investments The Company invests in privately-held companies which are accounted for using the equity method. The equity method is applied in situations where the Company has the ability to exercise significant influence, but not control, over the investee. Equity method investments are classified as other assets under the caption "Other noncurrent assets" on the Consolidated Balance Sheets. Equity method investments were $96 million and $100 million at December 31, 2021 and 2020, respectively. Depreciation Expense Depreciation of property, plant and equipment related to the manufacturing of products or services provided is included in Cost of goods or Cost of services. Depreciation of other property, plant and equipment that is not attributable to the manufacturing of products or services provided is included in Selling, general and administrative expenses or Engineering expense to the extent the property, plant, and equipment is used for research and development purposes. Warranty Costs Warranty costs are accrued based on Management’s estimates of repair or upgrade costs per unit and historical experience. Income Taxes Income taxes are accounted for under the liability method. Deferred tax assets and liabilities are determined based on differences between financial reporting and tax basis of assets and liabilities and are measured using the enacted tax rates and laws. The provision for income taxes includes federal, state and foreign income taxes. Stock-Based Compensation The Company recognizes compensation expense for stock-based compensation based on the grant date fair value amortized ratably over the requisite service period following the date of grant. Financial Derivatives and Hedging Activities In the normal course of business, the Company is exposed to interest rate, commodity price and foreign currency exchange rate fluctuations. At times, the Company limits these risks through the use of derivatives such as cross-currency swaps, foreign currency forward contracts, interest rate swaps, commodity swaps and options. In accordance with the Company's policy, derivatives are only used for hedging purposes. The Company does not use derivatives for trading or speculative purposes. Foreign currency forward contracts are agreements with a counterparty to exchange two distinct currencies at a set exchange rate for delivery on a set date at some point in the future. There is no exchange of funds until the delivery date. At the delivery date, the Company can either take delivery of the currency or settle on a net basis. For further information regarding the foreign currency forward contracts see Note 17. Foreign Currency Translation Certain of our international operations have determined that the local currency is the functional currency whereas others have determined the U.S. dollar is their functional currency. Assets and liabilities of foreign subsidiaries where the functional currency is the local currency are translated at the rate of exchange in effect on the balance sheet date while income and expenses are translated at the average rates of exchange prevailing during the period. Foreign currency gains and losses resulting from transactions and the translation of financial statements are recorded in the Company’s consolidated financial statements based upon the provisions of ASC 830 “Foreign Currency Matters.” The effects of currency exchange rate changes on intercompany transactions and balances of a long-term investment nature are accumulated and carried as a component of Accumulated other comprehensive loss. The effects of currency exchange rate changes on intercompany transactions that are denominated in a currency other than an entity’s functional currency are charged or credited to earnings. Foreign exchange transaction gains (losses) recognized in Other income, net were $8 million, $(8) million and $(14) million for 2021, 2020 and 2019, respectively. Noncontrolling Interests In accordance with ASC 810, the Company has classified noncontrolling interests as equity on our consolidated balance sheets as of December 31, 2021 and 2020. Net (income) loss attributable to noncontrolling interests was not material for the years ended December 31, 2021, 2020 and 2019. Revenue Recognition The Company accounts for Revenue under ASC 606 Revenue from Contracts with Customers. This guidance provides a five-step analysis of transactions to determine when and how revenue is recognized and requires entities to recognize revenue at an amount that reflects the consideration to which the Company expects to be entitled in exchange for transferring goods or services to a customer. A majority of the Company’s revenues are derived from performance obligations that are satisfied at a point in time when control passes to the customer which is generally at the time of shipment in accordance with agreed upon delivery terms. The remaining revenues are earned over time. All fees billed to the customer for shipping and handling are classified as a component of Net sales. All costs associated with shipping and handling are classified as a component of Cost of sales. The Company also has long-term customer agreements involving the design and production of highly engineered products that require revenue to be recognized over time because these products have no alternative use without significant economic loss, and the agreements contain an enforceable right to payment including a reasonable profit margin from the customer in the event of contract termination. Additionally, the Company has customer agreements involving the creation or enhancement of an asset that the customer controls which also require revenue to be recognized over time. Generally, the Company uses an input method for determining the amount of revenue, cost and gross margin to recognize over time for these customer agreements. The input methods used for these agreements include costs of material and labor, both of which give an accurate representation of the progress made toward complete satisfaction of a particular performance obligation. Contract revenues and cost estimates are reviewed and revised periodically throughout the year and adjustments are reflected in the accounting period as such amounts are determined. Additional information with respect to contract assets and liabilities is included in Note 8. Due to the nature of work required to be performed on the Company’s long-term projects, the estimation of total revenue and cost at completion is subject to many variables and requires significant judgment. Contract estimates related to long-term projects are based on various assumptions to project the outcome of future events that could span several years. These assumptions include cost of materials; labor availability and productivity; complexity of the work to be performed; and the performance of suppliers, customers and subcontractors that may be associated with the contract. We have a disciplined process where management reviews the progress of long term-projects periodically throughout the year. As part of this process, management reviews information including key contract matters, progress towards completion, identified risks and opportunities and any other information that could impact the Company’s estimates of revenue and costs. After completing this analysis, any adjustments to net sales, cost of goods sold, and the related impact to operating income are recognized as necessary in the period they become known. Generally, the Company’s revenue contains a single performance obligation for each distinct good or service; however, a single contract may have multiple performance obligations comprising multiple promises to customers. When there are multiple performance obligations, revenue is allocated based on the relative stand-alone selling price. Pricing is defined in our contracts on a line item basis and includes an estimate of variable consideration when required by the terms of the individual customer contract. Types of variable consideration the Company typically has include volume discounts, prompt payment discounts, price escalation clauses, liquidating damages, and performance bonuses. Sales returns and allowances are also estimated and recognized in the same period the related revenue is recognized, based upon the Company’s experience and future expectations. Remaining performance obligations represent the allocated transaction price of unsatisfied or partially unsatisfied performance obligations. As of December 31, 2021, the Company's remaining performance obligations were approximately $22 billion. The Company expects to recognize revenue of approximately 25% of remaining performance obligations over the next 12 months, with the remainder recognized thereafter. Revolving Receivables Program In May 2020, the Company entered into a revolving agreement to transfer up to $150 million of certain receivables of certain subsidiaries of the Company (the "Originators") through our bankruptcy-remote subsidiary to a financial institution on a recurring basis in exchange for cash equal to the gross receivables transferred. The bankruptcy remote subsidiary is a separate legal entity with its own creditors, and its assets are not available to pay creditors of the Company or any other affiliates of the Company. During the first quarter of 2021, the Company amended its revolving agreement to increase the amount of certain receivables that can be transferred from $150 million to $200 million. As customers pay their balances, we transfer additional receivables into the program, resulting in our gross receivables sold exceeding net cash flow impacts (e.g., collect and reinvest). The sold receivables are fully guaranteed by our bankruptcy-remote subsidiary that are pledged as collateral under this agreement. At December 31, 2021, and 2020 the bankruptcy-remote subsidiary held receivables of $324 million and $114 million, respectively. The transfers are recorded at the fair value of the proceeds received and obligations assumed less derecognized receivables. No obligation was recorded at December 31, 2021 or 2020 as the estimated expected credit losses on receivables sold is insignificant. Our maximum exposure to loss related to these receivables transferred is limited to the amount outstanding. The Company has agreed to guarantee the performance of the Originators respective obligations under the revolving agreement. None of the Company (except for the bankruptcy-remote consolidated subsidiary referenced above) nor the Originators guarantees the collectability of the receivables under the revolving agreements. The following table sets forth a summary of receivables sold: In millions Twelve Months Ended December 31, 2021 Twelve Months Ended December 31, 2020 Gross receivables sold/cash proceeds received $ 1,319  $ 852  Collections reinvested under revolving agreement 1,372  779  Net cash proceeds (remitted) received (53) 73  Pre-Production Costs Certain pre-production costs relating to long-term production and supply contracts have been deferred and will be recognized over the life of the contracts. Deferred pre-production costs were $86 million and $87 million at December 31, 2021 and 2020, respectively. Preferred Stock The Company’s authorized capital stock includes 1,000,000 shares of preferred stock. The Board of Directors has the authority to issue the preferred stock and to fix the designations, powers, preferences and rights of the shares of each such class or series, including dividend rates, conversion rights, voting rights, terms of redemption and liquidation preferences, without any further vote or action by the Company’s shareholders. The rights and preferences of the preferred stock would be superior to those of the common stock. At December 31, 2021 and 2020 there was no preferred stock issued or outstanding. Significant Customers and Concentrations of Credit Risk The Company’s trade receivables are primarily from rail and transit industry original equipment manufacturers, Class I railroads, railroad carriers and commercial companies that utilize rail cars in their operations, such as utility and chemical companies. No one customer accounted for more than 10% of the Company’s consolidated net sales in 2021, 2020 or 2019. Reclassifications Certain prior year amounts have been reclassified, where necessary, to conform to the current year presentation. Use of Estimates The preparation of financial statements in conformity with generally accepted accounting principles in the United States requires the Company to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the financial statements and reported amounts of revenues and expenses during the reporting period. Actual amounts could differ materially from the estimates. On an ongoing basis, Management reviews its estimates based on currently available information. Changes in facts and circumstances may result in revised estimates. Accounting Standards Adopted in 2021 In December 2019, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2019-12, Income Taxes: Simplifying the Accounting for Income Taxes. The amendments in this update simplify the accounting for certain income tax transactions by removing specific exceptions to the general principles in Accounting Standards Codification ("ASC") 740, "Income Taxes." This guidance was effective for fiscal years beginning after December 15, 2020 with early adoption permitted. The adoption of this standard did not have a material impact on the Company's consolidated financial statements. Accounting Standards Issued in 2021 In October 2021, the FASB issued ASU 2021-08, Business Combinations (Topic 805): Accounting for Contract Assets and Contract Liabilities from Contracts with Customers. The amendments in this update provide specific guidance on how to recognize and measure acquired contract assets and contract liabilities from revenue contracts in a business combination and address how to determine whether a contract liability is recognized by the acquirer in a business combination. The amendments in this update will be effective for Wabtec on January 1, 2023 and will be applied prospectively to business combinations occurring on or after the effective date.

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ACQUISITIONS	12 Months Ended
	Dec. 31, 2021
Business Combination and Asset Acquisition [Abstract]
ACQUISITIONS	ACQUISITIONS Nordco On March 31, 2021, the Company acquired Nordco, a leading North American supplier of new, rebuilt and used maintenance of way equipment. Nordco's products and services portfolio includes mobile railcar movers and ultrasonic rail flaw detection technologies. The purchase price paid for 100% ownership of Nordco was approximately $410 million. The following table summarizes the preliminary fair value of the Nordco assets acquired and liabilities assumed: In millions Assets acquired Cash and cash equivalents $ 5  Accounts receivable 23  Inventory 34  Other current assets 2  Property, plant and equipment 17  Goodwill 214  Other intangible assets 168  Other noncurrent assets 12  Total assets acquired 475  Liabilities assumed Current liabilities 19  Noncurrent liabilities 46  Total liabilities assumed 65  Net assets acquired $ 410  The fair values of the assets acquired and liabilities assumed were determined using the income, cost and market approaches. Discounted cash flow models were used to estimate the fair values of acquired intangibles. The fair value measurements were primarily based on significant inputs that are not observable in the market and are considered Level 3 in the fair value hierarchy. These estimates are preliminary in nature and subject to adjustments, which could be material. Any necessary adjustments will be finalized within one year from the date of acquisition; adjustments to date have not been significant. Intangible assets acquired include customer relationships and intellectual property that are subject to amortization, and trade names that were assigned an indefinite life and are not subject to amortization. Contingent liabilities assumed as part of the transaction were not material. Goodwill was calculated as the difference between the acquisition date fair value of the consideration transferred and the fair value of the net assets acquired, and represents the assembled workforce and the future economic benefits, including synergies, that are expected to be achieved as a result of the acquisition. The purchased goodwill is not expected to be deductible for tax purposes. The results of this business since the date of acquisition are reported within the Freight segment and the Services product line. The pro forma impact on Wabtec’s sales and results of operations, including the pro forma effect of events that are directly attributable to the acquisition, was not significant. General Electric Transportation Wabtec, General Electric Company ("GE"), GE Transportation, a Wabtec company formerly known as Transportation System Holdings Inc. ("SpinCo"), which was a newly formed wholly owned subsidiary of GE, and Wabtec US Rail Holdings, Inc. ("Merger Sub"), which was a newly formed wholly owned subsidiary of the Company, entered into the Original Merger Agreement on May 20, 2018, and GE, SpinCo, Wabtec and Wabtec US Rail, Inc. ("Direct Sale Purchaser") entered into the Original Separation Agreement on May 20, 2018, which together provided for the combination of Wabtec and GE Transportation. The Original Merger Agreement and Original Separation Agreement were subsequently amended on January 25, 2019 and the Merger was completed on February 25, 2019. As part of the Merger, certain assets of GE Transportation, including the equity interests of certain pre-Transaction subsidiaries of GE that compose part of GE Transportation, were sold to Direct Sale Purchaser for a cash payment of $2.875 billion, and Direct Sale Purchaser assumed certain liabilities of GE Transportation in connection with this purchase (the "Direct Sale"). Thereafter, GE transferred the SpinCo business to SpinCo and its subsidiaries (to the extent not already held by SpinCo and its subsidiaries), and SpinCo issued to GE shares of SpinCo Class A preferred stock, SpinCo Class B preferred stock, SpinCo Class C preferred stock and additional shares of SpinCo common stock. Following this issuance of additional SpinCo common stock to GE, and immediately prior to the Distribution (as defined below), GE owned 8,700,000,000 shares of SpinCo common stock, 15,000 shares of SpinCo Class A preferred stock, 10,000 shares of SpinCo Class B preferred stock and one share of SpinCo Class C preferred stock, which constituted all of the outstanding stock of SpinCo. Following the Direct Sale, GE distributed the distribution shares of SpinCo in a spin-off transaction to its stockholder (the "Distribution"). Immediately after the Distribution, Merger Sub merged with and into SpinCo (the "Merger"), whereby the separate corporate existence of Merger Sub ceased and SpinCo continued as the surviving company and a wholly owned subsidiary of Wabtec (except with respect to shares of SpinCo Class A preferred stock held by GE). In the Merger, subject to adjustment in accordance with the Merger Agreement, each share of SpinCo common stock converted into the right to receive a number of shares of Wabtec common stock based on the common stock exchange ratio set forth in the Merger Agreement and the share of SpinCo Class C preferred stock was converted into the right to receive (a) 10,000 shares of Wabtec convertible preferred stock and (b) a number of shares of Wabtec common stock equal to 9.9% of the fully-diluted pro forma Wabtec shares. Immediately prior to the Merger, Wabtec paid $10 million in cash to GE in exchange for all of the shares of SpinCo Class B preferred stock. Upon consummation of the Merger, Wabtec issued 46,763,975 shares of common stock to the holders of GE common stock, 19,018,207 shares of common stock to GE and 10,000 shares of preferred stock to GE and made a cash payment to GE of $2.885 billion. As a result and calculated based on Wabtec’s outstanding common stock on a fully-diluted, as-converted and as-exercised basis, as of February 25, 2019, approximately 49.2% of the outstanding shares of Wabtec common stock was held collectively by GE and holders of GE common stock (with 9.9% held by GE directly in shares of Wabtec common stock and 15% underlying the shares of Wabtec convertible preferred stock held by GE) and approximately 50.8% of the outstanding shares of Wabtec common stock would be held by pre-Merger Wabtec stockholders, in each case calculated on a fully-diluted, as-converted and as-exercised basis. Following the Merger, GE also retained 15,000 shares of SpinCo Class A non-voting preferred stock, and Wabtec held 10,000 shares of SpinCo Class B non-voting preferred stock. After the Merger, SpinCo, which is Wabtec’s wholly owned subsidiary (except with respect to shares of SpinCo Class A preferred stock held by GE), and Direct Sale Purchaser, which also is Wabtec’s wholly owned subsidiary, together, SpinCo and Direct Sale Purchaser own and operate the post-transaction GE Transportation. All shares of the Company’s common stock, including those issued in the Merger, are listed on the NYSE under the Company’s current trading symbol “WAB.” On the date of the Distribution, GE and SpinCo, directly or through subsidiaries entered into additional agreements relating to, among other things, intellectual property, employee matters, tax matters, research and development and transition services. On May 6, 2019, GE completed the sale of approximately 8,780 shares of Wabtec's Series A Preferred stock which converted upon the sale to 25,300,000 shares of Wabtec's common stock. On August 9, 2019, GE completed a sale of the remaining shares of Series A Preferred Stock outstanding which converted to approximately 3,515,500 shares of common stock, as well as 16,969,656 shares of common stock owned directly by GE. Finally, on September 12, 2019, GE completed a sale of all of its remaining shares of common stock of Wabtec, approximately 2,048,515 shares. In conjunction with these secondary offerings, the Company waived the requirements under the shareholders agreement for GE to maintain certain ownership levels of Wabtec's stock following the closing date of the Merger. The Company did not receive any proceeds from the sale of any of these shares. Total future consideration to be paid by Wabtec to GE included a fixed payment of $470 million, of which $99 million and $115 million were paid during 2021 and 2020, respectively, which is directly related to the timing of tax benefits expected to be realized by Wabtec as a result of the acquisition of GE Transportation. This payment is considered contingent consideration because the timing of cash payments to GE is directly related to the future timing of tax benefits received by the Company as a result of the acquisition of GE Transportation. The estimated total value of the consideration to be paid by Wabtec in the acquisition transactions is approximately $10.3 billion, including the cash paid for the Direct Sales Assets, equity transferred for SpinCo, contingent consideration, assumed debt and net of cash acquired. The consideration is based on the Company’s closing share price of $73.36 on February 22, 2019 and the fair value of the contingent consideration. The fair values of the assets acquired and liabilities assumed were determined using the income, cost and market approaches. Discounted cash flow models were used to estimate the fair values of acquired contract backlog, customer relationships, intellectual property intangibles, and below-market customer contracts liabilities. The fair value measurements were primarily based on significant inputs that are not observable in the market and are considered Level 3. The noncontrolling interest includes equity interests in GE Transportation's Brazil operations held by third parties on the date of acquisition. At the time of acquisition, quotable market prices of the noncontrolling interest existed; therefore, the noncontrolling interest in the GE Transportation Brazil operations were measured using a Level 1 input. In April 2019, the Company acquired the noncontrolling interest in GE Transportation's Brazil operations for $56 million which approximated the fair value assigned to the noncontrolling interest on the date of acquisition. The remaining noncontrolling interest value was determined based on inputs that are not observable in the market and are considered Level 3. The following table summarizes the final fair value of the GE Transportation assets acquired and liabilities assumed: In millions Assets acquired Cash and cash equivalents $ 177  Accounts receivable 541  Inventories 1,190  Other current assets 71  Property, plant, and equipment 1,089  Goodwill 5,984  Trade names 55  Customer relationships 550  Intellectual property 1,180  Backlog 1,450  Other noncurrent assets 321  Total assets acquired 12,608  Liabilities assumed Current liabilities 1,594  Contingent consideration 440  Other noncurrent liabilities 667  Total liabilities assumed 2,701  Net assets acquired 9,907  Noncontrolling interest $ 88  The revisions to the initial estimates were based on information that existed at the date of the acquisition. Trade names, customer relationships, patents and backlog intangible assets are subject to amortization. Customer relationship and backlog intangible assets are amortized using the straight-line method of amortization using a shortened estimated useful life then the projected future cash flow benefits of the intangible assets. Contingent liabilities assumed as part of the transaction were not material and are related to legal and tax matters. Contingent liabilities are recorded at fair value in purchase accounting, aside from those pertaining to uncertainty in income taxes which are an exception to the fair value basis of accounting. Included in other noncurrent liabilities are approximately $525 million of customer contracts whose terms are unfavorable compared to market terms at the date of consummation of the GE Transportation acquisition. Goodwill was calculated as the difference between the acquisition date fair value of the consideration transferred and the fair value of the net assets acquired, and represents the future economic benefits, including synergies, and assembled workforce, that are expected to be achieved as a result of the consummation of the acquisition of GE Transportation. A majority of the purchased goodwill is expected to be deductible for tax purposes. The goodwill has been allocated to the Freight segment. Costs related to the acquisition and integration of GE Transportation were approximately $3 million, $48 million and $63 million for the years ended December 31, 2021, 2020 and 2019, respectively, and are included in Selling, general and administrative expenses on the Consolidated Statements of Income. The following unaudited pro forma consolidated financial information presents income statement results as if the GE Transportation acquisition had occurred January 1, 2018: In millions, except per share data Twelve Months Ended December 31, 2019 Net sales $ 8,676  Gross profit 2,343  Net income attributable to Wabtec shareholders 277  Diluted earnings per share As Reported $ 1.84  Pro forma $ 1.45   The historical consolidated financial information of the Company and the GE Transportation acquisition detailed above has been adjusted in the pro forma information to give effect to pro forma events that are (1) directly attributable to the transactions, (2) factually supportable and (3) expected to have a continuing impact on the combined results. Pro forma data may not be indicative of the results that would have been obtained had the GE Transportation acquisition occurred at the beginning of the periods presented, nor is it intended to be a projection of future results. The Company also made smaller acquisitions not listed above which are individually and collectively immaterial.

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- Definition The entire disclosure for a business combination (or series of individually immaterial business combinations) completed during the period, including background, timing, and recognized assets and liabilities. The disclosure may include leverage buyout transactions (as applicable). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -URI http://asc.fasb.org/topic&trid=2303972 + Details Name: us-gaap_BusinessCombinationDisclosureTextBlock Namespace Prefix: us-gaap_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

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SUPPLEMENTAL CASH FLOW DISCLOSURES	12 Months Ended
	Dec. 31, 2021
Supplemental Cash Flow Elements [Abstract]
SUPPLEMENTAL CASH FLOW DISCLOSURES	SUPPLEMENTAL CASH FLOW DISCLOSURES   Year Ended December 31,   2021 2020 2019 In millions       Interest paid during the year $ 164  $ 174  $ 193  Income taxes paid during the year, net of amount refunded $ 123  $ 129  $ 100  Business acquisitions:       Fair value of assets acquired $ 507  $ 70  $ 12,613  Liabilities assumed 68  35  2,466  Non-controlling interest (acquired) assumed (1) (6) 31  Stock and cash paid 440  41  10,116  Less: Cash acquired 5  1  180            Stock used for acquisition —  —  6,940  Net cash paid $ 435  $ 40  $ 2,996

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- Definition The entire disclosure for supplemental cash flow activities, including cash, noncash, and part noncash transactions, for the period. Noncash is defined as information about all investing and financing activities of an enterprise during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -URI http://asc.fasb.org/topic&trid=2134446 + Details Name: us-gaap_CashFlowSupplementalDisclosuresTextBlock Namespace Prefix: us-gaap_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

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INVENTORIES	12 Months Ended
	Dec. 31, 2021
Inventory Disclosure [Abstract]
INVENTORIES	INVENTORIES The components of inventory, net of reserves, were:     December 31, In millions 2021 2020 Raw materials $ 757  $ 670  Work-in-progress 316  339  Finished goods 616  633  Total inventories $ 1,689  $ 1,642

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- Definition The entire disclosure for inventory. Includes, but is not limited to, the basis of stating inventory, the method of determining inventory cost, the classes of inventory, and the nature of the cost elements included in inventory. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 330 -URI http://asc.fasb.org/topic&trid=2126998 + Details Name: us-gaap_InventoryDisclosureTextBlock Namespace Prefix: us-gaap_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

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PROPERTY, PLANT & EQUIPMENT	12 Months Ended
	Dec. 31, 2021
Property, Plant and Equipment [Abstract]
PROPERTY, PLANT & EQUIPMENT	PROPERTY, PLANT & EQUIPMENTThe major classes of depreciable assets are as follows:   December 31, In millions 2021 2020 Machinery and equipment $ 1,433  $ 1,375  Buildings and improvements 785  801  Land and improvements 96  98  Construction in progress 89  99  Property, plant and equipment 2,403  2,373  Less: accumulated depreciation (906) (772) Total $ 1,497  $ 1,601   The estimated useful lives of property, plant and equipment are as follows:   Years Land improvements 10 to 20 Building and improvements 20 to 40 Machinery and equipment 3 to 15  Depreciation expense was $198 million, $183 million, and $158 million for 2021, 2020 and 2019, respectively.

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- Definition The entire disclosure for long-lived, physical asset used in normal conduct of business and not intended for resale. Includes, but is not limited to, work of art, historical treasure, and similar asset classified as collections. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=120429125&loc=d3e99893-112916 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -URI http://asc.fasb.org/topic&trid=2155823 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=120429125&loc=SL120174063-112916 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=120429125&loc=d3e99779-112916 + Details Name: us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock Namespace Prefix: us-gaap_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

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INTANGIBLES	12 Months Ended
	Dec. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
INTANGIBLES	INTANGIBLES Goodwill and indefinite lived intangible assets are reviewed annually during the fourth quarter for impairment. For 2021, the Company opted to proceed directly to the quantitative impairment test for all reporting units with goodwill. The discounted cash flow method and the market approach were used to estimate the fair value of each reporting unit using a weighting of 75% and 25%, respectively. The discounted cash flow model requires several assumptions including future sales growth, EBIT (earnings before interest and taxes) margins, capital expenditures, a discount rate and a terminal revenue growth rate (the revenue growth rate for the period beyond the years forecasted by the reporting units) for each reporting unit. The market approach requires several assumptions including EBITDA (earnings before interest, taxes, depreciation and amortization) multiples for comparable companies that operate in the same markets as the Company’s reporting units. For 2021, the discounted cash flow method was given more weight compared to the market approach due to a relatively reduced amount of publicly available data from companies with comparable operations to those of Wabtec; however, both valuations resulted in a conclusion that the estimated fair value of all three of the Company's reporting units was in excess of their respective carrying value, which resulted in a conclusion that no impairment existed. Additionally, the Company proceeded directly to the quantitative impairment test for some trade names with indefinite lives. The fair value of all material trade names subject to the quantitative impairment test exceeded its respective carrying value, resulting in a conclusion that no material impairment existed. For trade names not subject to the quantitative testing, the Company opted to perform a qualitative trade name impairment assessment and determined from the qualitative assessment that it was not more likely than not that the estimated fair values of the trade names were less than their carrying values; therefore, no further analysis was required. In assessing the qualitative factors to determine whether it is more likely than not that the fair value of a trade name is less than its carrying amount, the Company assessed relevant events and circumstances that may impact the fair value and the carrying amount of the trade name. The identification of relevant events and circumstances and how these may impact a trade name’s fair value or carrying amount involve significant judgments and assumptions. The judgment and assumptions include the identification of macroeconomic conditions, industry and market considerations, cost factors, overall financial performance, Wabtec specific events, share price trends and making the assessment on whether each relevant factor will impact the impairment test positively or negatively and the magnitude of any such impact. The change in the carrying amount of goodwill by segment is as follows: In millions Freight Segment Transit Segment Total Balance at December 31, 2019 $ 6,877  $ 1,484  $ 8,361  Additions 2  —  2  Disposals (6) —  (6) Foreign currency impact (1) 129  128  Balance at December 31, 2020 $ 6,872  $ 1,613  $ 8,485  Additions 214  15  229  Foreign currency impact (13) (114) (127) Balance at December 31, 2021 $ 7,073  $ 1,514  $ 8,587  As of December 31, 2021 and 2020, the Company’s trade names had a net carrying amount of $635 million and $651 million, respectively, and the Company believes these intangibles have indefinite lives, with the exception of the right to use the GE Transportation trade name, to which the Company has assigned a useful life of 5 years. Intangible assets of the Company, other than goodwill and trade names, consist of the following:   December 31, In millions 2021 2020 Intellectual property, patents, and other intangibles, net of accumulated amortization of $334 and $223 $ 977  $ 1,008  Backlog, net of accumulated amortization of $309 and $206 1,114  1,224  Customer relationships, net of accumulated amortization of $331 and $276 979  986  Total $ 3,070  $ 3,218  The remaining weighted average useful lives of backlog, intellectual property, customer relationships, and other intangibles were 10 years, 11 years, 17 years, and 9 years, respectively. The backlog intangible primarily consists of in-place long-term service agreements acquired by the Company in conjunction with the acquisition of GE Transportation. Amortization expense for intangible assets was $287 million, $282 million, and $238 million for the years ended December 31, 2021, 2020, and 2019, respectively. Estimated amortization expense for the five succeeding years is as follows (in millions): 2022 $ 291  2023 $ 290  2024 $ 281  2025 $ 278  2026 $ 274

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CONTRACT ASSETS AND CONTRACT LIABILITIES	12 Months Ended
	Dec. 31, 2021
Revenue from Contract with Customer [Abstract]
CONTRACT ASSETS AND CONTRACT LIABILITIES	CONTRACT ASSETS AND CONTRACT LIABILITIES Contract assets include unbilled amounts resulting from sales under long-term contracts where revenue is recognized over time and revenue exceeds the amount that can be billed to the customer based on the terms of the contract. The current portion of the contract assets are classified as current assets under the caption “Unbilled accounts receivable” while the noncurrent contract assets are classified as other assets under the caption "Other noncurrent assets" on the Consolidated Balance Sheets. Noncurrent contract assets were $153 million and $101 million at December 31, 2021 and 2020, respectively. Included in noncurrent contract assets are certain costs that are specifically related to a contract, however, do not directly contribute to the transfer of control of the tangible product being created, such as pre-production costs. The Company has elected to use the practical expedient and not consider unbilled amounts anticipated to be paid within one year as significant financing components. Contract liabilities include customer deposits that are made prior to the incurrence of costs related to a newly agreed upon contract and advanced customer payments that are in excess of revenue recognized. The current portion of contract liabilities are classified as current liabilities under the caption “Customer deposits” while the noncurrent contract liabilities are classified as noncurrent liabilities under the caption "Other long-term liabilities" on the Consolidated Balance Sheets. Noncurrent contract liabilities were $88 million and $80 million at December 31, 2021 and 2020, respectively. These contract liabilities are not considered a significant financing component because they are used to meet working capital demands that can be higher in the early stages of a contract and revenue associated with the contract liabilities is expected to be recognized within one year. Contract liabilities also include provisions for estimated losses from uncompleted contracts. Provisions for loss contracts were $107 million and $109 million at December 31, 2021 and 2020, respectively. These provisions for estimated losses are classified as current liabilities and included within the caption “Other accrued liabilities” on the Consolidated Balance Sheets. The following table reconciles the changes in the Company’s contract assets and liabilities as follows: Contract Assets In millions 2021 2020 Balance at beginning of year $ 544  $ 623  Acquisitions —  4  Recognized in current year 617  850  Reclassified to accounts receivable (602) (950) Foreign currency impact (14) 17  Balance at end of year $ 545  $ 544  Contract Liabilities In millions 2021 2020 Balance at beginning of year $ 832  $ 800  Acquisitions 2  7  Recognized in current year 740  872  Amounts in beginning balance reclassified to revenue (463) (532) Current year amounts reclassified to revenue (273) (326) Foreign currency impact (14) 11  Balance at end of year $ 824  $ 832

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- Definition The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -URI http://asc.fasb.org/topic&trid=49130388 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130551-203045 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 13 -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130556-203045 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 12 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130554-203045 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130550-203045 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 12 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130554-203045 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 12 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130554-203045 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 12 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130554-203045 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130558-203045 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 12 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130554-203045 + Details Name: us-gaap_RevenueFromContractWithCustomerTextBlock Namespace Prefix: us-gaap_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

v3.22.0.1

LONG-TERM DEBT	12 Months Ended
	Dec. 31, 2021
Debt Disclosure [Abstract]
LONG-TERM DEBT	LONG-TERM DEBT Long-term debt consisted of the following:   December 31, Effective Interest Rate 2021 2020 In millions Face Value Book Value Fair Value 1 Book Value Fair Value 1 Senior Credit and 364 Day Facility2: U.S. dollar-denominated Term Loans3 —  % N/A $ —  $ —  $ 645  $ 645  Multi-Currency Revolving loan facility 1.5  % N/A —  —  —  —  Senior Notes: 4.375% Senior Notes, due 2023 4.5  % $ 250  250  260  249  267  4.15% Senior Notes, due 2024 4.6  % $ 750  747  796  746  817  3.20% Senior Notes, due 2025 3.4  % $ 500  497  523  496  533  3.45% Senior Notes, due 2026 3.5  % $ 750  749  795  749  820  1.25% Senior Notes (EUR), due 2027 1.5  % € 500  560  574  —  —  4.70% Senior Notes, due 2028 5.0  % $ 1,250  1,243  1,423  1,242  1,472  Other Borrowings 12  12  112  113  Total 4,058  4,383  4,239  4,667  Less: current portion 2  2  447  447  Long-term portion $ 4,056  $ 4,381  $ 3,792  $ 4,220  1. See Note 17 for information on the fair value measurement of the Company's long-term debt. 2. During the second quarter of 2021, the Company repaid all outstanding term loan borrowings and related interest under the Senior Credit Facility and the 364 Day Facility. 3. U.S. dollar-denominated Term Loans includes the total outstanding balance of term loans denominated in U.S. dollars from the Senior Credit Facility and the 364 Day Facility. Variances between Face Value and Book Value are the result of unamortized discounts and debt issuance fees. The Company borrows and repays against the Multi-Currency Revolving loan facility for added flexibility in liquidity to manage cash during the operating cycle. The proceeds from borrowing and the repayments are included within the Financing Activities section of the Consolidated Statements of Cash Flows. As of December 31, 2021, the annual repayment requirements for debt obligations are as follows: In millions 2022 $ 2  2023 250  2024 762  2025 500  2026 750  Thereafter 1,817  Total $ 4,081  For those debt securities that have a premium or discount at the time of issuance, the Company amortizes the amount through interest expense based on the maturity date or the first date the holders may require the Company to repurchase the debt securities, if applicable. A premium would result in a decrease in interest expense, and a discount would result in an increase in interest expense in future periods. Additionally, the Company has debt issuance costs related to certain financing transactions which are also amortized through interest expense. As of December 31, 2021 and 2020, the Company had total unamortized debt issuance costs and discounts of $23 million and $21 million, respectively. At December 31, 2021, the weighted average interest rate on the Company's available variable debt facilities was 1.5%. Credit Facilities Senior Credit Facility On June 8, 2018, the Company entered into a credit agreement ("Senior Credit Facility"), which replaced the Company's then-existing credit agreement. The Senior Credit Facility is with a syndicate of lenders and provides for borrowings consisting of (i) term loans denominated in euros and U.S. dollars ("Term Loans"); and (ii) a multi-currency revolving loan facility, providing for an equivalent in U.S. dollars of up to $1,200 million in multi-currency revolving loans (inclusive of swingline loans of up to $75 million and letters of credit of up to $450 million (the "Revolving Credit Facility")). The Revolving Credit Facility will mature on June 8, 2023. Under the Senior Credit Facility, we can elect to receive advances bearing interest based on either the ABR rate, the LIBOR rate or the adjusted risk free rate (each as defined in the Senior Credit Facility) plus applicable margin that is determined based on our credit ratings or the Company's Leverage. The agreement contains affirmative, negative and financial covenants, and events of default customary for facilities of this type. The obligations under the Senior Credit Facility are guaranteed by Wabtec and certain of Wabtec's U.S. subsidiaries, as guarantors. The Company has agreed that, so long as any lender has any commitment under the Senior Credit Facility, any letter of credit is outstanding under the Senior Credit Facility, or any loan or other obligation is outstanding under the Senior Credit Facility, it will maintain the following as of the end of each fiscal quarter or the period of four quarters the ended: Interest Coverage Ratio 1 3.0x Leverage Ratio 2 3.25x 1. The interest coverage ratio is defined as EBITDA (earnings before interest, taxes, depreciation, and amortization), as defined in the Senior Credit Facility, to net interest expense for the four quarters then ended. 2. The leverage ratio is defined as net debt as of the last day of such fiscal quarter to EBITDA, as defined in the Senior Credit Facility for the four quarters then ended. The Senior Credit Facility was amended in the second quarter of 2021 so the Company may increase the maximum leverage ratio to (x) 3.75 to 1.00 at the end of the fiscal quarter in which the Nordco acquisition was consummated and each of the three fiscal quarters immediately following such fiscal quarter and (y) 3.50 to 1.00 at the end of each of the fourth and fifth full fiscal quarters after the consummation of the Nordco acquisition upon the Company's request. The Company has not requested any increase in the leverage ratio at this time. The Company was in compliance with all covenants in the Senior Credit Facility as of December 31, 2021. The following table presents availability under the Revolving Facilities: (in millions) Revolving Credit Facility Maximum Availability $ 1,200  Letters of Credit Under Credit Agreement (3) Current Availability $ 1,197  364-Day Facility On April 10, 2020 the Company entered into a new $600 million 364 day credit facility ("364 Day Facility") maturing April 2021 with a group of banks which included a $144 million revolving credit facility ("364 Day Revolver") and a $456 million term loan ("364 Term Loan"). The agreement called for interest at either a LIBOR-based rate, or a rate based on the prime lending rate of the agent bank, at the Company's option. The agreement contained affirmative, negative and financial covenants, and events of default customary for facilities of this type and substantially similar to our existing Senior Credit Facility. The obligations under the 364 Day Facility were guaranteed by certain of the Company's U.S. subsidiaries, as guarantors. On June 12, 2020, the Company amended the 364 Day Facility maturity to July 9, 2021. On June 3, 2021, the Company repaid all outstanding borrowings and related interest, effectively retiring the facility. Senior Notes The Company or its subsidiaries may issue senior notes from time to time. These notes are comprised of our 4.375% Senior Notes due 2023 (the "2023 Notes"), 4.15% Senior Notes due 2024 (the "2024 Notes"), 3.20% Senior Notes due 2025 (the "2025 Notes"), 3.45% Senior Notes due 2026 (the "2026 Notes"), 1.25% Senior Notes (EUR) due 2027 (the "Euro Notes" discussed below), and 4.70% Senior Notes due 2028 (the "2028 Notes"). The 2023 Notes, 2024 Notes, 2025 Notes, 2026 Notes and 2028 Notes are the “US Notes”, and collectively with the Euro Notes, the “Senior Notes.” Interest on the US Notes is payable semi-annually and interest on the Euro Notes is paid annually. Each series of the Senior Notes may be redeemed any time in whole or from time to time in part in accordance with the provisions of the indenture, under which such series of notes was issued. Each of the Senior Notes may be redeemed at a redemption price of 100% of the principal amount plus a specified make-whole premium and accrued interest. The US Notes and the Company's guarantee of the Euro Notes are senior unsecured obligations of the Company and rank pari passu with all existing and future senior debt and senior to all existing and future subordinated indebtedness of the Company. On June 3, 2021, Wabtec Transportation Netherlands B.V. ("Wabtec Netherlands") issued €500 million of 1.25% Senior Notes due in 2027, which are fully and unconditionally guaranteed by the Company. The Euro Notes were issued at 99.267% of face value. Interest on the Euro Notes accrues at a rate of 1.25% per annum and is payable annually beginning December 3, 2021. The Company incurred approximately $4 million of deferred financing costs related to the issuance of the Euro Notes for total net proceeds of approximately $599 million after consideration of the discount. On June 29, 2020, the Company issued $500 million of 3.20% Senior Notes due in 2025 (the "2025 Notes"). The 2025 Notes were issued at 99.892% of face value. Interest on the 2025 Notes accrues at a rate of 3.20% per annum and is payable semi-annually on June 15 and December 15 of each year beginning December 15, 2020. The proceeds were used to redeem outstanding variable rate debt. The Company incurred $2 million of deferred financing costs related to the issuance of the 2025 Notes. The indentures under which the Senior Notes were issued contain covenants and restrictions which limit, subject to certain exceptions, certain sale and leaseback transactions with respect to principal properties, the incurrence of secured debt without equally and ratably securing the Senior Notes, and certain merger and consolidation transactions. The covenants do not require the Company to maintain any financial ratios or specified levels of net worth or liquidity. The US Notes are fully and unconditionally guaranteed, jointly and severally, on an unsecured basis by each of the Company's subsidiaries that is a guarantor under the Senior Credit Facility. The Company is in compliance with the restrictions and covenants in the indentures under which the Senior Notes were issued and expects that these restrictions and covenants will not be any type of limiting factor in executing our operating activities. Cash Pooling Wabtec aggregates the Company's domestic cash position on a daily basis. Outside the United States, the Company uses cash pooling arrangements with banks to help manage our liquidity requirements. In these pooling arrangements, Wabtec subsidiary “Participants” agree with a single bank that the cash balances of any of the pool Participants with the bank will be subject to a full right of set-off against amounts other Participants owe the bank, and the bank provides for overdrafts as long as the net balance for all Participants does not exceed an agreed-upon level. Typically, each Participant pays interest on outstanding overdrafts and receives interest on cash balances. The Company's Consolidated Balance Sheets reflect cash, net of bank overdrafts, under all pooling arrangements. Letters of Credit and Bank Guarantees In the ordinary course of its business, the Company arranges for certain types of bank guarantees and letters of credit, such as performance bonds, bid bonds and financial guarantees, that are issued by certain banks and insurance companies to support customer contracts. The outstanding amount, including the letters of credit issued under the credit facility, were $791 million and $737 million at December 31, 2021 and 2020, respectively.

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- Definition The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -URI http://asc.fasb.org/topic&trid=2208564 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 1B -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 1C -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123466505&loc=SL123495334-112611 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 1I -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123466505&loc=SL123495371-112611 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 1I -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=123466505&loc=SL123495371-112611 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(c)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 1B -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 1C -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123466505&loc=SL123495334-112611 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 1C -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123466505&loc=SL123495334-112611 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 1E -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123466505&loc=SL123495348-112611 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611 Reference 12: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 1I -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123466505&loc=SL123495371-112611 Reference 13: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 1B -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611 + Details Name: us-gaap_DebtDisclosureTextBlock Namespace Prefix: us-gaap_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

v3.22.0.1

EMPLOYEE BENEFIT PLANS	12 Months Ended
	Dec. 31, 2021
Retirement Benefits [Abstract]
EMPLOYEE BENEFIT PLANS	EMPLOYEE BENEFIT PLANS Defined Benefit Pension Plans The Company sponsors defined benefit pension plans that cover certain U.S., Canadian, German, and United Kingdom employees and which provide benefits of stated amounts for each year of service of the employee. The Company uses a December 31 measurement date for the plans. The following tables provide information regarding the Company’s significant defined benefit pension plans summarized by U.S. and international components. Obligations and Funded Status   U.S. International In millions 2021 2020 2021 2020 Change in projected benefit obligation         Obligation at beginning of year $ (43) $ (41) $ (385) $ (347) Service cost —  —  (4) (4) Interest cost (1) (1) (4) (6) Employee contributions —  —  (1) —  Plan settlements and amendments —  —  1  (2) Benefits paid 3  3  13  14  Actuarial gain (loss) 2  (4) 15  (22) Effect of currency rate changes —  —  9  (18) Obligation at end of year $ (39) $ (43) $ (356) $ (385) Change in plan assets         Fair value of plan assets at beginning of year $ 36  $ 34  $ 305  $ 270  Actual return on plan assets 2  4  11  25  Employer contributions 5  1  11  10  Employee contributions —  —  1  1  Benefits paid (3) (3) (13) (14) Settlements and other —  —  (3) 2  Effect of currency rate changes —  —  (5) 11  Fair value of plan assets at end of year $ 40  $ 36  $ 307  $ 305  Funded status         Fair value of plan assets $ 40  $ 36  $ 307  $ 305  Benefit obligations (39) (43) (356) (385) Funded status $ 1  $ (7) $ (49) $ (80) Amounts recognized in the statement of financial position consist of:         Noncurrent assets $ 1  $ —  $ 17  $ 14  Current liabilities —  —  (2) (3) Noncurrent liabilities —  (7) (64) (91) Net amount recognized $ 1  $ (7) $ (49) $ (80) Amounts recognized in Accumulated other comprehensive loss, before tax consist of:         Prior service cost —  —  (1) (1) Net actuarial loss (16) (19) (70) (90) Net amount recognized $ (16) $ (19) $ (71) $ (91) The aggregate accumulated benefit obligation for the U.S. pension plans was $38 million and $42 million as of December 31, 2021 and 2020, respectively. The aggregate accumulated benefit obligation for the international pension plans was $345 million and $372 million as of December 31, 2021 and 2020, respectively.   U.S. International In millions 2021 2020 2021 2020 Information for pension plans with accumulated benefit obligations in excess of Plan assets:         Projected benefit obligation N/A $ (43) $ (107) $ (316) Accumulated benefit obligation N/A (42) (97) (304) Fair value of plan assets N/A 36  41  222  Information for pension plans with projected benefit obligations in excess of plan assets:       Projected benefit obligation N/A $ (43) $ (112) $ (317) Accumulated benefit obligation N/A (42) (101) (305) Fair value of plan assets N/A 36  45  224  Components of Net Periodic Benefit Costs   U.S. International In millions 2021 2020 2019 2021 2020 2019 Service cost $ —  $ —  $ —  $ 4  $ 4  $ 3  Interest cost 1  1  2  4  6  7  Expected return on plan assets (1) (1) (2) (13) (12) (12) Amortization of net loss 1  1  1  4  3  3  Settlement and curtailment losses recognized —  —  —  1  —  —  Net periodic benefit cost $ 1  $ 1  $ 1  $ —  $ 1  $ 1  Interest cost is recorded in Interest expense, net on the Consolidated Statements of Income. Expected return on plan assets, Amortization of net loss, and Settlement and curtailment losses recognized are recorded within Other expense, net on the Consolidated Statements of Income. Other Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income during 2021 are as follows: In millions U.S. International Net gain arising during the year $ 2  $ 13  Effect of exchange rates and other —  2  Total benefit recognized in Other comprehensive income $ 2  $ 15  Total benefit recognized in Net periodic benefit cost and Other comprehensive income $ 1  $ 15  The weighted average assumptions in the following table represent the rates used to develop the actuarial present value of the projected benefit obligation for the year listed.   U.S. International   2021 2020 2019 2021 2020 2019 Discount rate 2.87  % 2.47  % 3.27  % 1.97  % 1.39  % 1.84  % Expected return on plan assets 5.00  % 5.35  % 5.35  % 4.27  % 4.43  % 5.01  % Rate of compensation increase 3.00  % 3.00  % 3.00  % 2.70  % 2.65  % 2.64  % The discount rate is based on settling the pension obligation with high grade, high yield corporate bonds, and the rate of compensation increase is based on actual experience. The expected return on plan assets is based on historical performance as well as expected future rates of return on plan assets considering the current investment portfolio mix and the long-term investment strategy. The amounts of net actuarial loss and prior service cost included in other comprehensive loss expected to be recognized as components of periodic benefit costs in 2022 are not material. Pension Plan Assets The Company has established formal investment policies for the assets associated with our pension plans. Objectives include maximizing long-term return at acceptable risk levels and diversifying among asset classes. Asset allocation targets are based on periodic asset liability study results which help determine the appropriate investment strategies. The investment policies permit variances from the targets within certain parameters. The plan assets consist primarily of equity security funds, debt security funds, insurance contracts, and temporary cash and cash equivalent investments. The assets held in these funds are generally actively managed and are valued at the net asset value per share multiplied by the number of shares held as of the measurement date. (See Note 17 “Fair Value Measurement” included herein). Plan assets by asset category at December 31, 2021 and 2020 are as follows:   U.S. International In millions 2021 2020 2021 2020 Pension Plan Assets         Equity security funds $ 10  $ 19  $ 87  $ 75  Debt security funds 27  16  194  198  Insurance Contracts —  —  15  15  Cash and cash equivalents and other 3  1  11  17  Fair value of plan assets $ 40  $ 36  $ 307  $ 305  The U.S. plan has a target asset allocation of 75% equity securities and 25% debt securities. The International plan has a target asset allocation of 10% equity securities, 22% debt securities and 68% in other investments. Investment policies are determined by the respective Plan’s Pension Committee and set forth in its Investment Policy. Rebalancing of the asset allocation occurs on a quarterly basis. The following tables summarize our pension plan assets measured at fair value on a recurring basis by fair value hierarchy level (See Note 17): December 31, 2021 In millions NAV Level 1 Level 2 Level 3 Total US:           Equity $ —  $ 10  $ —  $ —  $ 10  Debt Securities —  15  12  —  27  Cash and cash equivalents —  3  —  —  3  International:           Equity 7  20  60  —  87  Debt Securities —  4  190  —  194  Insurance Contracts —  —  5  10  15  Cash and cash equivalents and other —  6  5  —  11  Total $ 7  $ 58  $ 272  $ 10  $ 347  December 31, 2020 In millions NAV Level 1 Level 2 Level 3 Total US:           Equity $ —  $ 19  $ —  $ —  $ 19  Debt Securities —  6  10  —  16  Cash and cash equivalents —  1  —  —  1  International:           Equity 6  22  47  —  75  Debt Securities —  3  195  —  198  Insurance Contracts —  —  5  10  15  Cash and cash equivalents and other —  9  8  —  17  Total $ 6  $ 60  $ 265  $ 10  $ 341  There were no material changes to the Level 3 assets during 2020 and 2021. Cash Flows The Company’s funding methods are based on governmental requirements and differ from those methods used to recognize pension expense. The Company expects to contribute $3 million to the international pension plan and does not expect to make a contribution to the U.S. pension plan during 2022. Benefit payments expected to be paid to plan participants are as follows: In millions U.S. International Year ended December 31,     2022 $ 3  $ 14  2023 $ 3  $ 15  2024 $ 3  $ 15  2025 $ 3  $ 16  2026 $ 3  $ 16  2027 through 2031 $ 12  $ 90  Defined Contribution Plans The Company participates in certain defined contribution plans. Costs recognized during 2021, 2020, and 2019 were approximately $55 million each year. The 401(k) savings plan is a participant directed defined contribution plan that holds shares of the Company’s stock as one of the investment options. At December 31, 2021 and 2020, the plan held on behalf of its participants approximately 387,000 shares with a market value of $36 million, and approximately 409,000 shares with a market value of $30 million, respectively.

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- Definition The entire disclosure for retirement benefits. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=123450688&loc=d3e4179-114921 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section S99 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=21916913&loc=d3e273930-122802 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(i) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (o) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (p) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 70 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -URI http://asc.fasb.org/topic&trid=2235017 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 60 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6414203&loc=d3e39689-114964 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(iv)(03) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (q) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (r)(1) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 12: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(iii) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 13: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (l) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 14: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (r)(2) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details Name: us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock Namespace Prefix: us-gaap_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

v3.22.0.1

INCOME TAXES	12 Months Ended
	Dec. 31, 2021
Income Tax Disclosure [Abstract]
INCOME TAXES	INCOME TAXES The Company is responsible for filing consolidated U.S., foreign and combined, unitary or separate state income tax returns. The Company is responsible for paying the taxes relating to such returns, including any subsequent adjustments resulting from the redetermination of such tax liabilities by the applicable taxing authorities. The components of the income before income taxes for the Company’s domestic and foreign operations for the years ended December 31 are provided below: For the year ended December 31, In millions 2021 2020 2019 Domestic $ 253  $ 78  $ 118  Foreign 484  479  329  Income before income taxes $ 737  $ 557  $ 447  The consolidated provision for income taxes included in the Consolidated Statements of Income consisted of the following: For the year ended December 31, In millions 2021 2020 2019 Current tax expense (benefit)       Federal $ (81) $ 6  $ 5  State 27  17  1  Foreign 138  93  141    84  116  147  Deferred tax expense (benefit)       Federal 87  36  20  State 10  (2) 3  Foreign (9) (5) (50)   88  29  (27) Total provision $ 172  $ 145  $ 120  A reconciliation of the United States federal statutory income tax rate to the effective income tax rate on operations for the years ended December 31 is provided below: For the year ended December 31, In millions 2021 2020 2019 U.S. federal statutory rate 21.0  % 21.0  % 21.0  % State taxes 0.3  2.6  0.8  Foreign 3.3  4.4  (0.4) Research and development credit (0.8) (1.3) (1.7) U.S. net operating loss carryback (3.4) —  —  Changes in valuation allowance 3.0  (2.0) 3.5  U.S. tax reform provision 0.7  1.3  2.0  Transaction costs related to acquisitions 0.1  —  1.0  Other, net (1.0) —  0.7  Effective rate 23.2  % 26.0  % 26.9  % The decrease in the effective tax rate is primarily the result of filing amended federal and state income tax returns in 2021. The Company amended the 2019 federal tax return to incorporate changes in tax regulations which generated a net operating loss that was carried back to tax years 2014 to 2016, which were at a higher federal tax rate. Other, net includes the impact of amended state returns reflecting changes in apportioned state income. These amendments resulted in a current year tax benefit. In addition, there was a decrease in the US tax reform provision resulting from the provisions of the Tax Cut and Jobs Act, a decrease in state tax expense and a decrease in foreign tax expense due to mix of taxable income which were partially offset by an increase in valuation allowances. Components of deferred tax assets and liabilities were as follows:   December 31, In millions 2021 2020 Deferred income tax assets:     Accrued expenses and reserves $ 44  $ 39  Warranty reserve 53  51  Deferred compensation/employee benefits 62  43  Right-of-use asset 76  70  Pension and postretirement obligations 24  26  Property, plant & equipment —  48  Inventory 46  45  Net operating loss carry forwards 102  83  Other 102  46  Gross deferred income tax assets 509  451  Less: Valuation allowance (64) (42) Total deferred income tax assets 445  409  Deferred income tax liabilities:     Property, plant & equipment 85  —  Right-of-use liability 78  69  Intangibles 503  444  Total deferred income tax liabilities 666  513  Net deferred income tax liability $ 221  $ 104  A valuation allowance is recorded when it is more likely than not that some portion or all of the deferred tax assets will not be realized.  As of December 31, 2021, the valuation allowance for certain foreign deferred tax asset carryforwards was $(64) million primarily in China, Denmark, France, the Netherlands, South Africa, and the United States. The increase in valuation allowance in 2021 is primarily related to state net operating loss carry-forwards that are not expected to be realized. The Company has net operating loss carry-forwards in the amount of $311 million, of which $192 million are indefinite lived, $66 million expire within ten years and $53 million expire in various periods between December 31, 2032 to December 31, 2041. As of December 31, 2021, the liability for income taxes associated with unrecognized tax benefits was $32 million, of which $18 million, if recognized, would favorably affect the Company’s effective income tax rate. As of December 31, 2020, the liability for income taxes associated with unrecognized tax benefits was $16 million, of which $15 million, if recognized, would favorably affect the Company’s effective income tax rate. A reconciliation of the beginning and ending amount of the liability for income taxes associated with unrecognized tax benefits follows: In millions 2021 2020 2019 Gross liability for unrecognized tax benefits at beginning of year $ 16  $ 17  $ 9  Gross increases - unrecognized tax benefits in prior periods 19  4  10  Gross decreases - audit settlement during year (1) (5) —  Gross decreases - expiration of audit statute of limitations (2) —  (2) Gross liability for unrecognized tax benefits at end of year $ 32  $ 16  $ 17  The Company includes interest and penalties related to unrecognized tax benefits in income tax expense. As of December 31, 2021 and 2020, the total interest and penalties accrued was approximately $5 million. With limited exception, the Company is no longer subject to examination by various U.S. and foreign taxing authorities for years before 2016. At this time, the Company believes that it is reasonably possible that unrecognized tax benefits of approximately $5 million may change within the next 12 months due to the expiration of statutory review periods and current examinations.

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- Definition The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 21 -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32857-109319 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 11.C) -URI http://asc.fasb.org/extlink&oid=122134291&loc=d3e330215-122817 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 17 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32809-109319 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 6.I.5.Q1) -URI http://asc.fasb.org/extlink&oid=122134291&loc=d3e330036-122817 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32705-109319 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 270 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6424409&loc=d3e44925-109338 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -URI http://asc.fasb.org/topic&trid=2144680 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6424122&loc=d3e41874-109331 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(h)(2)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 + Details Name: us-gaap_IncomeTaxDisclosureTextBlock Namespace Prefix: us-gaap_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

v3.22.0.1

EARNINGS PER SHARE	12 Months Ended
	Dec. 31, 2021
Earnings Per Share [Abstract]
EARNINGS PER SHARE	EARNINGS PER SHARE The computation of earnings per share from operations is as follows: For the Year Ended December 31, In millions, except per share data 2021 2020 2019 Numerator Net income attributable to Wabtec common shareholders - basic $ 556  $ 413  $ 325  Add: dividends declared - preferred shares —  —  1  Net income attributable to Wabtec common shareholders - diluted $ 556  $ 413  $ 326  Denominator Weighted average shares outstanding - basic 187.7  189.9  170.5  Effect of dilutive securities: Assumed conversion of preferred shares —  —  6.4  Assumed conversion of dilutive stock-based compensation plans 0.4  0.5  0.4  Weighted average shares outstanding - diluted 188.1  190.4  177.3  Net income per common share attributable to Wabtec shareholders Basic $ 2.96  $ 2.18  $ 1.91  Diluted $ 2.96  $ 2.17  $ 1.84  The Company’s non-vested restricted stock contains rights to receive non-forfeitable dividends, and thus are participating securities requiring the two-class method of computing earnings per share. The calculation of earnings per share for common stock shown above excludes the income attributable to the non-vested restricted stock from the numerator resulting in a variance between net income used in the numerator and Net income attributable to Wabtec shareholders shown within the Consolidated Statements of Income. Additionally, the weighted average share counts in the denominator excludes the dilutive impact of the respective non-vested restricted stock. Approximately 0.4 million, and 0.3 million outstanding shares of Common Stock for the years ended December 31, 2020 and 2019, respectively, were not included in the computation of year-to-date diluted earnings per share because their exercise price exceeded the average market price of the Company's common stock.

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=109243012&loc=SL65017193-207537 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3630-109257 + Details Name: us-gaap_EarningsPerShareTextBlock Namespace Prefix: us-gaap_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

v3.22.0.1

STOCK-BASED COMPENSATION PLANS	12 Months Ended
	Dec. 31, 2021
Share-based Payment Arrangement [Abstract]
STOCK-BASED COMPENSATION PLANS	STOCK-BASED COMPENSATION PLANS As of December 31, 2021, the Company maintains employee stock-based compensation plans for stock options, restricted stock, and incentive stock units as governed by the 2011 Stock Incentive Compensation Plan, as amended and restated (the “2011 Plan”) and the 2000 Stock Incentive Plan, as amended (the “2000 Plan”).  The 2011 Plan has a term through May 10, 2027 and as of December 31, 2021 the number of shares available for future grants under the 2011 Plan was 6,399,200 shares, which includes remaining shares to grant under the 2000 Plan. The Company also maintains a 1995 Non-Employee Directors’ Fee and Stock Option Plan as amended and restated (“the Directors Plan”). The Directors Plan, as amended, authorizes a total of 1,000,000 shares of Common Stock to be issued. Under the Directors Plan options issued become exercisable over a three-year vesting period and expire ten years from the date of grant, and restricted stock issued under the plan vests one year from the date of grant. The amount of restricted stock issued to non-employee directors as compensation for directors’ fees was as follows: 18,142 shares for 2021; 23,152 shares for 2020; and 15,729 shares for 2019. The total number of shares issued under the Directors Plan as of December 31, 2021 was 951,175 shares.  Stock-based compensation expense for all of the plans was $46 million, $20 million and $50 million for the years ended December 31, 2021, 2020 and 2019, respectively. The Company recognized associated tax benefits related to the stock-based compensation plans of $1 million, $2 million and $1 million for the respective periods. Included in the stock-based compensation expense for 2021 above is $3 million of expense related to stock options, $13 million related to non-vested restricted stock, $6 million related to restricted stock units, $1 million related to units issued for Directors’ fees and $23 million of expense related to incentive stock units. At December 31, 2021, unamortized compensation expense related to those stock options, non-vested restricted shares and incentive stock units expected to vest totaled $38 million and will be recognized over a weighted period of 1.3 years. Stock Options Stock options are granted to eligible employees and directors at the fair market value, which is the average of the high and low Wabtec stock price on the date of grant. Under the 2011 Plan and the 2000 Plan, options become exercisable over a three year vesting period and expire 10 years from the date of grant.   The following table summarizes the Company’s stock option activity and related information for the 2011 Plan, the 2000 Plan and Directors Plan for the years ended December 31:  Options Weighted Average Exercise Price Weighted Average Remaining Contractual Life Aggregate Intrinsic value (in millions) Outstanding at December 31, 2018 466,677  $ 61.04  5.7 $ 4  Granted 134,450  $ 70.44    $ 1  Exercised (4,868) $ 22.45    —  Canceled (8,235) $ 73.00    —  Outstanding at December 31, 2019 588,024  $ 63.36  5.7 $ 9  Granted 136,506  $ 77.75    —  Exercised (86,145) $ 35.47    —  Canceled (85,716) $ 73.73    —  Outstanding at December 31, 2020 552,669  $ 69.82  6.1 $ 4  Granted 126,794  $ 81.21    —  Exercised (113,728) $ 50.38    —  Canceled (33,820) $ 73.53    —  Outstanding at December 31, 2021 531,915  $ 75.40  6.5 $ 9  Exercisable at December 31, 2021 308,591  $ 73.39  6.1 $ 6  Options outstanding at December 31, 2021 were as follows:   Range of exercise prices Number of Options Outstanding Weighted Average Exercise Price of Options Outstanding Weighted Average Remaining Contractual Life Number of Options Currently Exercisable Weighted Average Exercise Price of Options Currently Exercisable 35.00 - 50.00 35,002  $ 47.80  1.1 35,002  $ 47.80  50.00 - 65.00 40,317  $ 59.09  4.6 37,217  $ 60.52  65.00 - 80.00 248,483  $ 74.43  6.9 143,862  $ 73.37  Over 80.00 208,113  $ 84.36  7.3 92,510  $ 88.28    531,915  $ 75.40  6.5 308,591  $ 73.39   The fair value of each option grant is estimated on the date of grant using the Black-Scholes option-pricing model with the following weighted-average assumptions: For the year ended December 31,   2021 2020 2019 Dividend yield 0.60  % 0.60  % 0.66  % Risk-free interest rate 0.8  % 1.5  % 2.6  % Stock price volatility 36.1  % 28.1  % 25.8  % Expected life (years) 5.0 5.0 5.0 Weighted average fair value of options granted during the year $ 25.01  $ 21.05  $ 19.54  The dividend yield is based on the Company’s dividend rate and the current market price of the underlying common stock at the date of grant. Expected life in years is determined from historical stock option exercise data. Expected volatility is based on the historical volatility of the Company’s stock. The risk-free interest rate is based on the 7 years U.S. Treasury bond rates for the expected life of the option. Restricted Stock and Incentive Stock  Beginning in 2006 the Company adopted a restricted stock program. As provided for under the 2011 and 2000 Plans, eligible employees are granted restricted stock that generally vests over three years from the date of grant. Under the Directors Plan, restricted stock units vest one year from the date of grant. In addition, the Company has issued incentive stock units to eligible employees that vest upon attainment of certain cumulative three-year performance goals. Based on the Company’s performance for each three year period then ended, the incentive stock units can vest and be awarded ranging from 0% to 200% of the initial incentive stock units granted. The incentive stock units included in the table below represent the number of shares that are expected to vest based on the Company’s estimate for meeting those established performance targets. As of December 31, 2021, the Company estimates that it will achieve 33%, 121% and 117% for the incentive stock awards expected to vest based on performance for the three year periods ending December 31, 2021, 2022, and 2023, respectively, and has recorded incentive compensation expense accordingly. If estimates of the number of these stock units expected to vest changes in a future accounting period, cumulative compensation expense could increase or decrease and will be recognized in the current period for the elapsed portion of the vesting period and would change future expense for the remaining vesting period. Compensation expense for the non-vested restricted stock and incentive stock units is based on the closing price of the Company’s common stock on the date of grant and recognized over the applicable vesting period. The following table summarizes the restricted stock activity and related information for the 2011 Plan, the 2000 Plan, and Directors Plan, and incentive stock units activity and related information for the 2011 Plan and the 2000 Plan with related information for the years ended December 31: Restricted Stock and Units Incentive Stock Awards Weighted Average Grant Date Fair Value Outstanding at December 31, 2018 445,089  415,242  $ 75.51  Granted 608,813  259,950  $ 70.61  Vested (235,406) (119,835) $ 71.65  Adjustment for incentive stock awards expected to vest —  80,403  $ 78.04  Canceled (27,465) (63,758) $ 74.04  Outstanding at December 31, 2019 791,031  572,002  $ 73.64  Granted 283,587  250,197  $ 75.68  Vested (345,859) (147,069) $ 77.45  Adjustment for incentive stock awards expected to vest —  (331,004) $ 71.32  Canceled (72,753) (73,481) $ 72.83  Outstanding at December 31, 2020 656,006  270,645  $ 73.80  Granted 235,902  241,467  $ 81.64  Vested (350,955) (37,672) $ 71.82  Adjustment for incentive stock awards expected to vest —  180,767  $ 76.26  Canceled (33,255) (48,106) $ 76.24  Outstanding at December 31, 2021 507,698  607,101  $ 78.06

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v3.22.0.1

ACCUMULATED OTHER COMPREHENSIVE LOSS	12 Months Ended
	Dec. 31, 2021
Equity [Abstract]
ACCUMULATED OTHER COMPREHENSIVE LOSS	ACCUMULATED OTHER COMPREHENSIVE LOSS Comprehensive income comprises both net income and the change in equity from transactions and other events and circumstances from non-owner sources. The changes in Accumulated other comprehensive loss by component, net of tax, for the years ended December 31, 2021, 2020, and 2019 are as follows: In millions Foreign currency translation Derivative contracts Pension and post retirement benefit plans Total Balance at December 31, 2018 $ (202) $ —  $ (55) $ (257) Other comprehensive loss before reclassifications (106) (3) (19) (128) Amounts reclassified from Accumulated other comprehensive loss —  —  2  2  Other comprehensive loss, net (106) (3) (17) (126) Balance at December 31, 2019 $ (308) $ (3) $ (72) $ (383) Other comprehensive income (loss) before reclassifications 48  6  (13) 41  Amounts reclassified from Accumulated other comprehensive loss —  —  3  3  Other comprehensive income (loss), net 48  6  (10) 44  Balance at December 31, 2020 $ (260) $ 3  $ (82) $ (339) Other comprehensive (loss) income before reclassifications (136) (8) 13  (131) Amounts reclassified from Accumulated other comprehensive loss —  —  4  4  Other comprehensive (loss) income, net (136) (8) 17  (127) Balance at December 31, 2021 $ (396) $ (5) $ (65) $ (466) Amounts reclassified from Accumulated other comprehensive loss are recognized in "Other income, net" with the tax impact recognized in "Income tax expense" on the Consolidated Statements of Income.

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- Definition The entire disclosure for comprehensive income, which includes, but is not limited to, 1) the amount of income tax expense or benefit allocated to each component of other comprehensive income, including reclassification adjustments, 2) the reclassification adjustments for each classification of other comprehensive income and 3) the ending accumulated balances for each component of comprehensive income. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -URI http://asc.fasb.org/topic&trid=2134417 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(21)) -URI http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(23)) -URI http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(19)) -URI http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263 + Details Name: us-gaap_ComprehensiveIncomeNoteTextBlock Namespace Prefix: us-gaap_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

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v3.22.0.1

LEASES	12 Months Ended
	Dec. 31, 2021
Leases [Abstract]
LEASES	LEASES The Company leases certain, property, buildings and equipment. For leases with terms greater than 12 months, the Company records the related asset and obligation at the present value of lease payments. Many of the Company's leases include rental escalation clauses, renewal options, and/or termination options that are factored into our determination of lease payments when appropriate. The Company does not separate lease and non-lease components. Operating lease expense for the years ended December 31, 2021, 2020, and 2019 were $59 million, $57 million, and $54 million, respectively. New operating leases of $80 million and $68 million were added during the years ended December 31, 2021 and 2020, respectively. Wabtec does not have material financing leases, short-term or variable leases or sublease income. As most of the Company's leases do not provide a readily stated discount rate, the Company must estimate the rate to discount lease payments using its incremental borrowing rate. The Company has established discount rates by geographic region ranging from 1% to 9%. Scheduled payments of Operating lease liabilities are as follows: In millions Operating Leases 2022 $ 60  2023 52  2024 47  2025 40  2026 33  Thereafter 113  Total lease payments 345  Less: Present value discount (27) Present value lease liabilities $ 318  The following table summarizes the remaining lease term and discount rate assumptions used to develop the present value of lease liabilities: December 31, 2021 December 31, 2020 Weighted-average remaining lease term (years) Operating leases 8.2 7.4 Weighted-average discount rate Operating leases 2.3  % 2.7  %

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- Definition The entire disclosure for operating leases of lessee. Includes, but is not limited to, description of operating lease and maturity analysis of operating lease liability. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -URI http://asc.fasb.org/subtopic&trid=77888251 + Details Name: us-gaap_LesseeOperatingLeasesTextBlock Namespace Prefix: us-gaap_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

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WARRANTIES	12 Months Ended
	Dec. 31, 2021
Product Warranties Disclosures [Abstract]
WARRANTIES	WARRANTIESThe following table reconciles the changes in the Company’s product warranty reserve as follows: In millions 2021 2020 Balance at beginning of year $ 279  $ 268  Acquisitions 2  4  Warranty expense 116  130  Warranty claim payments (124) (131) Foreign currency impact (14) 8  Balance at end of year $ 259  $ 279

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- Definition The entire disclosure for standard and extended product warranties and other product guarantee contracts, including a tabular reconciliation of the changes in the guarantor's aggregate product warranty liability for the reporting period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -URI http://asc.fasb.org/topic&trid=2155896 + Details Name: us-gaap_ProductWarrantyDisclosureTextBlock Namespace Prefix: us-gaap_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

v3.22.0.1

FAIR VALUE MEASUREMENT AND DERIVATIVE INSTRUMENTS	12 Months Ended
	Dec. 31, 2021
Fair Value Disclosures [Abstract]
FAIR VALUE MEASUREMENT AND DERIVATIVE INSTRUMENTS	FAIR VALUE MEASUREMENT AND DERIVATIVE INSTRUMENTS ASC 820 “Fair Value Measurements and Disclosures” defines fair value, establishes a framework for measuring fair value and explains the related disclosure requirements. ASC 820 indicates, among other things, that a fair value measurement assumes that the transaction to sell an asset or transfer a liability occurs in the principal market for the asset or liability or, in the absence of a principal market, the most advantageous market for the asset or liability and defines fair value based upon an exit price model. Valuation Hierarchy. ASC 820 establishes a valuation hierarchy for disclosure of the inputs to valuation used to measure fair value. This hierarchy prioritizes the inputs into three broad levels as follows. Level 1 inputs are quoted prices (unadjusted) in active markets for identical assets or liabilities. Level 2 inputs are quoted prices for similar assets and liabilities in active markets or inputs that are observable for the asset or liability, either directly or indirectly through market corroboration, for substantially the full term of the financial instrument. Level 3 inputs are unobservable inputs based on the Company’s assumptions used to measure assets and liabilities at fair value. A financial asset or liability’s classification within the hierarchy is determined based on the lowest level input that is significant to the fair value measurement. The Company’s cash and cash equivalents are highly liquid investments purchased with an original maturity of three months or less and are considered Level 1 on the fair value valuation hierarchy. The fair value of cash and cash equivalents approximated the carrying value at December 31, 2021 and December 31, 2020. The Company’s defined benefit pension plan assets consist primarily of equity security funds, debt security funds, insurance contracts, and temporary cash and cash equivalent investments. These investments are comprised of a number of investment funds that invest in a diverse portfolio of assets including equity securities, corporate and governmental bonds, and money markets.  Trusts are valued at the net asset value (“NAV”) as determined by their custodian.  NAV represents the accumulation of the unadjusted quoted close prices on the reporting date for the underlying investments divided by the total shares outstanding at the reporting dates (see Note 10).  The Senior Notes are considered Level 2 based on the fair value valuation hierarchy. Contingent consideration related to the GE Transportation acquisition is considered Level 3 based on the fair value valuation hierarchy. At December 31, 2021 and 2020, $110 million and $130 million, respectively, were classified as "Other accrued liabilities" on the Company's Consolidated Balance Sheets and $141 million and $218 million, respectively, were included within long-term liabilities shown as "Contingent consideration" on the Company's Consolidated Balance Sheets. The fair value approximates the carrying value at December 31, 2021 and 2020. Hedging Activities In the normal course of business, the Company is exposed to market risks related to interest rates, commodity prices and foreign currency exchange rate fluctuations, which may adversely affect our operating results and financial position. At times, we limit these risks through the use of derivatives such as cross-currency swaps, foreign currency forward contracts, interest rate swaps, commodity swaps and options. These hedging contracts are valued using broker quotations, or market transactions in either the listed or over-the counter markets. As such, these derivative instruments are classified within level 2. In accordance with our policy, derivatives are only used for hedging purposes. We do not use derivatives for trading or speculative purposes. Foreign Currency Exchange Risk The Company uses forward contracts to hedge forecasted foreign currency denominated sales of finished goods and future settlement of foreign currency denominated assets and liabilities. Derivatives used to hedge firm commitments relevant to sales and purchases and forecasted transactions to be realized with high probability that meet the criteria for hedge accounting are designated as cash flow hedges. The effective portion of gains and losses is deferred as a component of Accumulated other comprehensive loss and is recognized in earnings at the time the hedged item affects earnings, in the same line item as the underlying hedged item. For the years ended December 31, 2021, 2020 and 2019, the amounts reclassified into income were not material. The Company has also established balance sheet risk management and net investment hedging programs to protect its balance sheet against foreign currency exchange rate volatility. We conduct our business worldwide in U.S. dollars and the functional currencies of our foreign subsidiaries, including euro, Indian rupee, British pound sterling, Australian dollars and several other foreign currencies. Changes in these foreign currency exchange rates could have a material adverse impact on our financial results that are reported in U.S. dollars. We are also exposed to foreign currency exchange rate risk related to our foreign subsidiaries, including intercompany loans denominated in non-functional currencies. We hedge these exposures using foreign currency swap contracts and cross-currency swaps to offset the potential income statement effects on intercompany loans denominated in non-functional currencies. These programs reduce but do not eliminate foreign currency exchange rate risk entirely. The Company enters into certain derivative contracts in accordance with its risk management strategy that do not meet the criteria for hedge accounting, but which have the impact of largely mitigating foreign currency exposure. These foreign exchange contracts are accounted for on a full mark to market basis through earnings, with gains and losses recorded as a component of Other income, net. The net (loss) gain related to these contracts were $(5), $(1) and $2 million for the years ended December 31, 2021, 2020 and 2019, respectively. These contracts typically mature within one year. The following table summarizes the assets, liabilities, gross notional amounts, fair values, and fair value hierarchy classification of the designated and non-designated hedges discussed in the above sections as of December 31, 2021, which are included in other current assets and liabilities on the Consolidated Balance Sheets: Fair Value Gross Notional Amount In millions Level Designated Non-Designated Designated Non-Designated Foreign Exchange Contracts Other current assets 2 $ 8  $ —  $ 627  $ —  Other current liabilities 2 (1) (2) 613  289  Cross-currency Swaps Other current assets 2 —  —  14  —  Total $ 7  $ (2) $ 1,254  $ 289  The following table summarizes the assets, liabilities, gross notional amounts, fair values, and fair value hierarchy classification of the designated and non-designated hedges discussed in the above sections as of December 31, 2020, which are included in other current assets and liabilities on the Consolidated Balance Sheets: Fair Value Gross Notional Amount In millions Level Designated Non-Designated Designated Non-Designated Foreign Exchange Contracts Other current assets 2 $ 9  $ 1  $ 794  $ 1  Other current liabilities 2 (4) (2) 928  320  Cross-currency Swaps Other current liabilities 2 (26) —  613  —  Total $ (21) $ (1) $ 2,335  $ 321  Interest Rate Risk The Company may use interest rate swap contracts on certain investing and borrowing transactions to manage its net exposure to interest rate changes and to reduce its overall cost of borrowing. The Company does not use leveraged swaps and, in general, does not leverage any of its investment activities that would put principal capital at risk. For the years ended December 31, 2021, 2020 and 2019, the amounts reclassified into income were not material. Commodity Price Risk The Company may use commodity forward swaps to manage its exposure to commodity price changes and to reduce its overall cost of manufacturing. For the years ended December 31, 2021, 2020 and 2019, the amounts reclassified into income were not material.

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- Definition The entire disclosure of the fair value measurement of assets and liabilities, which includes financial instruments measured at fair value that are classified in shareholders' equity, which may be measured on a recurring or nonrecurring basis. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -URI http://asc.fasb.org/topic&trid=2155941 + Details Name: us-gaap_FairValueMeasurementInputsDisclosureTextBlock Namespace Prefix: us-gaap_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

v3.22.0.1

COMMITMENTS AND CONTINGENCIES	12 Months Ended
	Dec. 31, 2021
Commitments and Contingencies Disclosure [Abstract]
COMMITMENTS AND CONTINGENCIES	COMMITMENTS AND CONTINGENCIES The Company is subject to a variety of environmental laws and regulations governing discharges to air and water, the handling, storage and disposal of hazardous or solid waste materials and the remediation of contamination associated with releases of hazardous substances. The Company believes its operations currently comply in all material respects with all of the various environmental laws and regulations applicable to our business; however, there can be no assurance that environmental requirements will not change in the future or that we will not incur significant costs to comply with such requirements. Claims have been filed against the Company and certain of its affiliates in various jurisdictions across the United States by persons alleging bodily injury as a result of exposure to asbestos-containing products. The vast majority of the claims are submitted to insurance carriers for defense and indemnity, or to non-affiliated companies that retain the liabilities for the asbestos-containing products at issue. We cannot, however, assure that all of these claims will be fully covered by insurance, or that the indemnitors or insurers will remain financially viable. Our ultimate legal and financial liability with respect to these claims, as is the case with other pending litigation, cannot be estimated. A limited number of claims are not covered by insurance, nor are they subject to indemnity from non-affiliated parties. Management believes that the costs of the Company’s asbestos-related cases will not be material to the Company’s overall financial position, results of operations and cash flows. Xorail, Inc., a wholly owned subsidiary of the Company (“Xorail”), has received notices from Denver Transit Constructors (“DTC”) alleging breach of contract related to the operating of constant warning wireless crossings, and late delivery of the Train Management & Dispatch System (“TMDS”) for the Denver Eagle P3 Project, which is owned by the Denver Regional Transit District ("RTD"). No damages have been asserted for the alleged late delivery of the TMDS, and no formal claim has been filed; Xorail has successfully completed a remediation plan concerning the TMDS issues. With regard to the wireless crossing issue, as of September 8, 2017, DTC alleged that total damages were $37 million through July 31, 2017 and are continuing to accumulate. The majority of the damages stems from a delay in approval of the wireless crossing system by the Federal Railway Administration ("FRA") and the Public Utility Commission ("PUC"), resulting in the use of flaggers at all of the crossings pending approval of the wireless crossing system and certification of the crossings. DTC has alleged that the delay is due to Xorail's failure to achieve constant warning times for the crossings in accordance with the approval requirements imposed by the FRA and PUC. Xorail has denied DTC's assertions, stating that its system satisfied the contractual requirements. Xorail has worked with DTC to modify its system and implement the FRA's and PUC's previously undefined approval requirements; the FRA and PUC have both approved modified wireless crossing system, and as of August 2018, DTC completed the process of certifying the crossings and eliminated the use of flaggers. DTC has not updated its notices against Xorail, nor have they filed any formal claim against Xorail. On September 21, 2018, DTC filed a complaint against RTD in Colorado state court for breach of contract related to non-payments and the costs for the flaggers, asserting a change-in-law arising from the FRA/PUC’s new certification requirements. DTC’s complaint generally supports Xorail’s position and does not name or implicate Xorail. DTC's claim against RTD proceeded to trial on September 21, 2020; the trial has been completed, included post-trial submission. From time to time the Company is involved in litigation relating to claims arising out of its operations in the ordinary course of business. As of the date hereof, the Company is involved in no litigation that the Company believes will have a material adverse effect on its financial condition, results of operations or liquidity.

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- Definition The entire disclosure for commitments and contingencies. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -URI http://asc.fasb.org/topic&trid=2127136 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 440 -URI http://asc.fasb.org/topic&trid=2144648 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 954 -SubTopic 440 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6491277&loc=d3e6429-115629 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 440 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123406679&loc=d3e25336-109308 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 440 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123406679&loc=d3e25336-109308 + Details Name: us-gaap_CommitmentsAndContingenciesDisclosureTextBlock Namespace Prefix: us-gaap_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

v3.22.0.1

SEGMENT INFORMATION	12 Months Ended
	Dec. 31, 2021
Segment Reporting [Abstract]
SEGMENT INFORMATION	SEGMENT INFORMATION The Company has two reportable segments—the Freight Segment and the Transit Segment. The key factors used to identify these reportable segments are the organization and alignment of the Company’s internal operations, the nature of the products and services, and customer type. Initiatives to integrate GE Transportation operations into Wabtec including recent restructuring programs announced in late 2019 resulted in changes to the Company's organizational structure and the financial reporting utilized by the Company's chief operating decision maker to assess performance and allocate resources; as a result, certain asset groups were reorganized from the Freight Segment to the Transit Segment and vice versa. The change in the Company’s reportable segments was effective in the fourth quarter of 2019 and is reflected below. The Company believes these changes better present Management's view of the business. The Company’s business segments are: Freight Segment primarily builds new locomotives, manufactures and services components for new and existing freight cars and locomotives, rebuilds freight locomotives, supplies railway electronics, positive train control equipment, signal design and engineering services, and provides related heat exchange and cooling systems. Customers include large, publicly traded railroads, leasing companies, manufacturers of original equipment such as locomotives and freight cars, and utilities. We refer to sales of both goods, such as spare parts and equipment upgrades, and related services, such as monitoring, maintenance and repairs, as sales in our Services product line. Transit Segment primarily manufactures and services components for new and existing passenger transit vehicles, typically regional trains, high speed trains, subway cars, light-rail vehicles and buses. It also refurbishes subway cars and provides heating, ventilation, and air conditioning equipment, and doors for buses and subways. Customers include public transit authorities and municipalities, leasing companies, and manufacturers of subway cars and buses around the world. The Company evaluates its business segments’ operating results based on income from operations. Intersegment sales are accounted for at prices that are generally established by reference to similar transactions with unaffiliated customers. Corporate activities include general corporate expenses, elimination of intersegment transactions, interest income and expense and other unallocated charges. Segment financial information for 2021 is as follows:         In million Freight Segment Transit Segment Corporate Activities and Elimination Total Sales to external customers $ 5,239  $ 2,583  $ —  $ 7,822  Intersegment sales/(elimination) 48  33  (81) —  Total sales $ 5,287  $ 2,616  $ (81) $ 7,822  Income (loss) from operations $ 717  $ 238  $ (79) $ 876  Interest expense and other, net —  —  (139) (139) Income (loss) before income taxes $ 717  $ 238  $ (218) $ 737  Depreciation and amortization $ 405  $ 70  $ 16  $ 491  Capital expenditures $ 79  $ 48  $ 3  $ 130  Segment assets $ 18,291  $ 5,768  $ (5,605) $ 18,454  Segment financial information for 2020 is as follows: In millions Freight Segment Transit Segment Corporate Activities and Elimination Total Sales to external customers $ 5,082  $ 2,474  $ —  $ 7,556  Intersegment sales/(elimination) 49  37  (86) —  Total sales $ 5,131  $ 2,511  $ (86) $ 7,556  Income (loss) from operations $ 584  $ 230  $ (69) $ 745  Interest expense and other, net —  —  (188) (188) Income (loss) from operations before income taxes $ 584  $ 230  $ (257) $ 557  Depreciation and amortization $ 393  $ 67  $ 13  $ 473  Capital expenditures $ 70  $ 40  $ 26  $ 136  Segment assets $ 15,393  $ 6,395  $ (3,334) $ 18,454  Segment financial information for 2019 is as follows:         In millions Freight Segment Transit Segment Corporate Activities and Elimination Total Sales to external customers $ 5,441  $ 2,759  $ —  $ 8,200  Intersegment sales/(elimination) 60  23  (83) —  Total sales $ 5,501  $ 2,782  $ (83) $ 8,200  Income (loss) from operations $ 643  $ 214  $ (194) $ 663  Interest expense and other, net —  —  (216) (216) Income (loss) before income taxes $ 643  $ 214  $ (410) $ 447  Depreciation and amortization $ 330  $ 62  $ 9  $ 401  Capital expenditures $ 105  $ 64  $ 17  $ 186  The following geographic area data as of and for the years ended December 31, 2021, 2020 and 2019, respectively, includes net sales based on product shipment destination and long-lived assets, which consist of plant, property and equipment, net of depreciation, resident in their respective countries: Net Sales Long-Lived Assets In millions 2021 2020 2019 2021 2020 United States $ 3,321  $ 3,161  $ 3,381  $ 983  $ 1,039  Canada 462  372  733  6  9  Mexico 220  187  357  22  23  North America 4,003  3,720  4,471  1,011  1,071  South America 301  217  218  32  32  United Kingdom 300  314  376  45  51  Germany 383  351  340  70  82  France 286  252  294  54  59  Italy 196  172  206  29  31  Switzerland 88  83  89  2  2  Other Europe 427  405  387  55  60  Europe 1,680  1,577  1,692  255  285  India 531  441  504  151  164  Australia / New Zealand 386  366  301  9  12  China 228  225  290  32  30  Other Asia / Middle East 177  199  216  —  1  Egypt 32  360  228  —  —  Other Africa 72  138  105  4  4  Russia / CIS 412  313  175  3  2  Total $ 7,822  $ 7,556  $ 8,200  $ 1,497  $ 1,601  Net sales to external customers by product line are as follows: In millions 2021 2020 2019 Freight Segment: Services $ 2,430  $ 2,068  $ 1,991  Equipment 1,302  1,531  1,700  Components 867  819  1,073  Digital Electronics 640  664  677  Total Freight Segment sales $ 5,239  $ 5,082  $ 5,441  Transit Segment: Original Equipment Manufacturer 1,193  1,139  1,287  Aftermarket 1,390  1,335  1,472  Total Transit Segment sales $ 2,583  $ 2,474  $ 2,759

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- Definition The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 31 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8924-108599 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 34 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8981-108599 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8721-108599 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 40 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9031-108599 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 26 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8844-108599 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9038-108599 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 42 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9054-108599 Reference 12: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8657-108599 Reference 13: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8721-108599 Reference 14: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -URI http://asc.fasb.org/topic&trid=2134510 + Details Name: us-gaap_SegmentReportingDisclosureTextBlock Namespace Prefix: us-gaap_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

v3.22.0.1

OTHER INCOME, NET	12 Months Ended
	Dec. 31, 2021
Other Income and Expenses [Abstract]
OTHER INCOME, NET	OTHER INCOME, NETThe components of Other income, net are as follows: For the year ended December 31, In millions 2021 2020 2019 Foreign currency gain (loss) $ 8  $ (8) $ (14) Equity income 20  10  8  Expected return on pension assets/amortization 9  10  10  Other miscellaneous income (expense) 1  (1) (1) Total Other income, net $ 38  $ 11  $ 3

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- Definition The entire disclosure for other income or other expense items (both operating and nonoperating). Sources of nonoperating income or nonoperating expense that may be disclosed, include amounts earned from dividends, interest on securities, profits (losses) on securities, net and miscellaneous other income or income deductions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 720 -URI http://asc.fasb.org/topic&trid=2122503 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 610 -URI http://asc.fasb.org/topic&trid=49130413 + Details Name: us-gaap_OtherIncomeAndOtherExpenseDisclosureTextBlock Namespace Prefix: us-gaap_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

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SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS	12 Months Ended
	Dec. 31, 2021
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]
VALUATION AND QUALIFYING ACCOUNTS	SCHEDULE II WESTINGHOUSE AIR BRAKE TECHNOLOGIES CORPORATION VALUATION AND QUALIFYING ACCOUNTS For each of the three years ended December 31  In millions Balance at beginning of period Charged/ (credited) to expense Charged/ (credited) to other accounts (1) Deductions from reserves (2) Balance at end of period 2021           Allowance for doubtful accounts $ 37  $ 3  $ (1) $ 7  $ 32  Valuation allowance-taxes $ 42  $ 22  $ —  $ —  $ 64  2020           Allowance for doubtful accounts $ 20  $ 18  $ —  $ 1  $ 37  Valuation allowance-taxes $ 58  $ (16) $ —  $ —  $ 42  2019           Allowance for doubtful accounts $ 17  $ 7  $ —  $ 4  $ 20  Valuation allowance-taxes $ 42  $ 16  $ —  $ —  $ 58    (1)Reserves of acquired/(sold) companies; valuation allowances for state and foreign deferred tax assets; impact of fluctuations in foreign currency exchange rates. (2)Actual disbursements and/or charges.

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- Definition The entire disclosure for valuation and qualifying accounts and reserves. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 12 -Subsection 09 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690 + Details Name: srt_ScheduleOfValuationAndQualifyingAccountsDisclosureTextBlock Namespace Prefix: srt_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

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- References No definition available. + Details Name: srt_ValuationAndQualifyingAccountsAbstract Namespace Prefix: srt_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	12 Months Ended
	Dec. 31, 2021
Accounting Policies [Abstract]
Principles of Consolidation	Principles of Consolidation The consolidated financial statements include the accounts of the Company and all subsidiaries that it controls. For consolidated subsidiaries in which the Company's ownership is less than 100%, the outside shareholders' interests are shown as noncontrolling interests. These statements have been prepared in accordance with U.S. generally accepted accounting principles. Sales between subsidiaries are billed at prices consistent with sales to third parties and are eliminated in consolidation.
Cash Equivalents	Cash Equivalents Cash equivalents are highly liquid investments purchased with an original maturity of three months or less.
Allowance for Doubtful Accounts	Allowance for Doubtful Accounts The allowance for doubtful accounts receivable reflects our best estimate of expected losses inherent in our receivable portfolio determined on the basis of historical experience, relevant credit forecast information, changes to customer's solvency and other currently available evidence.
Inventories	Inventories Inventories are stated at the lower of cost or net realizable value. Cost is determined under the first-in, first-out (FIFO) method. Inventory costs include material, labor and overhead.
Property, Plant and Equipment	Property, Plant and Equipment Property, plant and equipment additions are stated at cost. Expenditures for renewals and improvements are capitalized. Expenditures for ordinary maintenance and repairs are expensed as incurred. The Company computes book depreciation principally on the straight-line method. Accelerated depreciation methods are utilized for income tax purposes.
Leasing Arrangements	Leasing Arrangements The Company conducts a portion of its operations from leased facilities and finances certain equipment purchases through lease agreements. In those cases in which the lease term approximates the useful life of the leased asset or the lease meets certain other prerequisites, the leasing arrangement is classified as a financing lease. The remaining arrangements are treated as operating leases. Right-of-use lease assets are classified as long-term assets under the caption "Other noncurrent assets" and lease liabilities are classified under the captions "Other accrued liabilities" and "Other long-term liabilities" on the Consolidated Balance Sheets.
Goodwill and Intangible Assets	Goodwill and Intangible Assets Goodwill and other intangible assets with indefinite lives are not amortized. Other intangibles (with definite lives) are amortized on a straight-line basis over their estimated economic lives. Amortizable intangible assets are reviewed for impairment when indicators of impairment are present. The Company tests goodwill and indefinite-lived intangible assets for impairment at the reporting unit level and at least annually. The Company performs its annual impairment test during the fourth quarter after the annual forecasting process is completed, and also tests for impairment whenever events or changes in circumstances indicate that the carrying value may not be recoverable. Periodically, Management of the Company assesses whether or not an indicator of impairment is present that would necessitate an impairment analysis be performed.
Equity Method Investments	Equity Method Investments The Company invests in privately-held companies which are accounted for using the equity method. The equity method is applied in situations where the Company has the ability to exercise significant influence, but not control, over the investee. Equity method investments are classified as other assets under the caption "Other noncurrent assets" on the Consolidated Balance Sheets
Depreciation Expense	Depreciation Expense Depreciation of property, plant and equipment related to the manufacturing of products or services provided is included in Cost of goods or Cost of services. Depreciation of other property, plant and equipment that is not attributable to the manufacturing of products or services provided is included in Selling, general and administrative expenses or Engineering expense to the extent the property, plant, and equipment is used for research and development purposes.
Warranty Costs	Warranty Costs Warranty costs are accrued based on Management’s estimates of repair or upgrade costs per unit and historical experience.
Income Taxes	Income Taxes Income taxes are accounted for under the liability method. Deferred tax assets and liabilities are determined based on differences between financial reporting and tax basis of assets and liabilities and are measured using the enacted tax rates and laws. The provision for income taxes includes federal, state and foreign income taxes.
Stock-Based Compensation	Stock-Based Compensation The Company recognizes compensation expense for stock-based compensation based on the grant date fair value amortized ratably over the requisite service period following the date of grant.
Financial Derivatives and Hedging Activities	Financial Derivatives and Hedging Activities In the normal course of business, the Company is exposed to interest rate, commodity price and foreign currency exchange rate fluctuations. At times, the Company limits these risks through the use of derivatives such as cross-currency swaps, foreign currency forward contracts, interest rate swaps, commodity swaps and options. In accordance with the Company's policy, derivatives are only used for hedging purposes. The Company does not use derivatives for trading or speculative purposes. Foreign currency forward contracts are agreements with a counterparty to exchange two distinct currencies at a set exchange rate for delivery on a set date at some point in the future. There is no exchange of funds until the delivery date. At the delivery date, the Company can either take delivery of the currency or settle on a net basis. For further information regarding the foreign currency forward contracts see Note 17.
Foreign Currency Translation	Foreign Currency Translation Certain of our international operations have determined that the local currency is the functional currency whereas others have determined the U.S. dollar is their functional currency. Assets and liabilities of foreign subsidiaries where the functional currency is the local currency are translated at the rate of exchange in effect on the balance sheet date while income and expenses are translated at the average rates of exchange prevailing during the period. Foreign currency gains and losses resulting from transactions and the translation of financial statements are recorded in the Company’s consolidated financial statements based upon the provisions of ASC 830 “Foreign Currency Matters.” The effects of currency exchange rate changes on intercompany transactions and balances of a long-term investment nature are accumulated and carried as a component of Accumulated other comprehensive loss. The effects of currency exchange rate changes on intercompany transactions that are denominated in a currency other than an entity’s functional currency are charged or credited to earnings.
Noncontrolling Interests	Noncontrolling Interests In accordance with ASC 810, the Company has classified noncontrolling interests as equity on our consolidated balance sheets as of December 31, 2021 and 2020.
Revenue Recognition and Shipping and Handling Fees and Costs	Revenue Recognition The Company accounts for Revenue under ASC 606 Revenue from Contracts with Customers. This guidance provides a five-step analysis of transactions to determine when and how revenue is recognized and requires entities to recognize revenue at an amount that reflects the consideration to which the Company expects to be entitled in exchange for transferring goods or services to a customer. A majority of the Company’s revenues are derived from performance obligations that are satisfied at a point in time when control passes to the customer which is generally at the time of shipment in accordance with agreed upon delivery terms. The remaining revenues are earned over time. All fees billed to the customer for shipping and handling are classified as a component of Net sales. All costs associated with shipping and handling are classified as a component of Cost of sales. The Company also has long-term customer agreements involving the design and production of highly engineered products that require revenue to be recognized over time because these products have no alternative use without significant economic loss, and the agreements contain an enforceable right to payment including a reasonable profit margin from the customer in the event of contract termination. Additionally, the Company has customer agreements involving the creation or enhancement of an asset that the customer controls which also require revenue to be recognized over time. Generally, the Company uses an input method for determining the amount of revenue, cost and gross margin to recognize over time for these customer agreements. The input methods used for these agreements include costs of material and labor, both of which give an accurate representation of the progress made toward complete satisfaction of a particular performance obligation. Contract revenues and cost estimates are reviewed and revised periodically throughout the year and adjustments are reflected in the accounting period as such amounts are determined. Additional information with respect to contract assets and liabilities is included in Note 8. Due to the nature of work required to be performed on the Company’s long-term projects, the estimation of total revenue and cost at completion is subject to many variables and requires significant judgment. Contract estimates related to long-term projects are based on various assumptions to project the outcome of future events that could span several years. These assumptions include cost of materials; labor availability and productivity; complexity of the work to be performed; and the performance of suppliers, customers and subcontractors that may be associated with the contract. We have a disciplined process where management reviews the progress of long term-projects periodically throughout the year. As part of this process, management reviews information including key contract matters, progress towards completion, identified risks and opportunities and any other information that could impact the Company’s estimates of revenue and costs. After completing this analysis, any adjustments to net sales, cost of goods sold, and the related impact to operating income are recognized as necessary in the period they become known. Generally, the Company’s revenue contains a single performance obligation for each distinct good or service; however, a single contract may have multiple performance obligations comprising multiple promises to customers. When there are multiple performance obligations, revenue is allocated based on the relative stand-alone selling price. Pricing is defined in our contracts on a line item basis and includes an estimate of variable consideration when required by the terms of the individual customer contract. Types of variable consideration the Company typically has include volume discounts, prompt payment discounts, price escalation clauses, liquidating damages, and performance bonuses. Sales returns and allowances are also estimated and recognized in the same period the related revenue is recognized, based upon the Company’s experience and future expectations. Remaining performance obligations represent the allocated transaction price of unsatisfied or partially unsatisfied performance obligations.
Revolving Receivables Program	Revolving Receivables Program The bankruptcy remote subsidiary is a separate legal entity with its own creditors, and its assets are not available to pay creditors of the Company or any other affiliates of the Company.As customers pay their balances, we transfer additional receivables into the program, resulting in our gross receivables sold exceeding net cash flow impacts (e.g., collect and reinvest). The transfers are recorded at the fair value of the proceeds received and obligations assumed less derecognized receivables. No obligation was recorded at December 31, 2021 or 2020 as the estimated expected credit losses on receivables sold is insignificant. Our maximum exposure to loss related to these receivables transferred is limited to the amount outstanding. The Company has agreed to guarantee the performance of the Originators respective obligations under the revolving agreement. None of the Company (except for the bankruptcy-remote consolidated subsidiary referenced above) nor the Originators guarantees the collectability of the receivables under the revolving agreements.
Pre-Production Costs	Pre-Production Costs Certain pre-production costs relating to long-term production and supply contracts have been deferred and will be recognized over the life of the contracts.
Preferred Stock	Preferred Stock The Company’s authorized capital stock includes 1,000,000 shares of preferred stock. The Board of Directors has the authority to issue the preferred stock and to fix the designations, powers, preferences and rights of the shares of each such class or series, including dividend rates, conversion rights, voting rights, terms of redemption and liquidation preferences, without any further vote or action by the Company’s shareholders. The rights and preferences of the preferred stock would be superior to those of the common stock.
Significant Customers and Concentrations of Credit Risk	Significant Customers and Concentrations of Credit Risk The Company’s trade receivables are primarily from rail and transit industry original equipment manufacturers, Class I railroads, railroad carriers and commercial companies that utilize rail cars in their operations, such as utility and chemical companies. No one customer accounted for more than 10% of the Company’s consolidated net sales in 2021, 2020 or 2019.
Reclassifications	Reclassifications Certain prior year amounts have been reclassified, where necessary, to conform to the current year presentation.
Use of Estimates	Use of Estimates The preparation of financial statements in conformity with generally accepted accounting principles in the United States requires the Company to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the financial statements and reported amounts of revenues and expenses during the reporting period. Actual amounts could differ materially from the estimates. On an ongoing basis, Management reviews its estimates based on currently available information. Changes in facts and circumstances may result in revised estimates.
Accounting Standards Adopted and Issued in 2021	Accounting Standards Adopted in 2021 In December 2019, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2019-12, Income Taxes: Simplifying the Accounting for Income Taxes. The amendments in this update simplify the accounting for certain income tax transactions by removing specific exceptions to the general principles in Accounting Standards Codification ("ASC") 740, "Income Taxes." This guidance was effective for fiscal years beginning after December 15, 2020 with early adoption permitted. The adoption of this standard did not have a material impact on the Company's consolidated financial statements. Accounting Standards Issued in 2021 In October 2021, the FASB issued ASU 2021-08, Business Combinations (Topic 805): Accounting for Contract Assets and Contract Liabilities from Contracts with Customers. The amendments in this update provide specific guidance on how to recognize and measure acquired contract assets and contract liabilities from revenue contracts in a business combination and address how to determine whether a contract liability is recognized by the acquirer in a business combination. The amendments in this update will be effective for Wabtec on January 1, 2023 and will be applied prospectively to business combinations occurring on or after the effective date.

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- Definition Disclosure of accounting policy for intangible assets. This accounting policy may address both intangible assets subject to amortization and those that are not. The following also may be disclosed: (1) a description of intangible assets (2) the estimated useful lives of those assets (3) the amortization method used (4) how the entity assesses and measures impairment of such assets (5) how future cash flows are estimated (6) how the fair values of such asset are determined. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details Name: us-gaap_GoodwillAndIntangibleAssetsIntangibleAssetsPolicy Namespace Prefix: us-gaap_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

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- Definition Disclosure of accounting policy for income taxes, which may include its accounting policies for recognizing and measuring deferred tax assets and liabilities and related valuation allowances, recognizing investment tax credits, operating loss carryforwards, tax credit carryforwards, and other carryforwards, methodologies for determining its effective income tax rate and the characterization of interest and penalties in the financial statements. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 25 -URI http://asc.fasb.org/extlink&oid=123427490&loc=d3e32247-109318 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32847-109319 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 19 -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32840-109319 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=124431353&loc=SL116659661-227067 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32639-109319 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=123427490&loc=d3e32280-109318 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 17 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32809-109319 + Details Name: us-gaap_IncomeTaxPolicyTextBlock Namespace Prefix: us-gaap_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

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- Definition Disclosure of accounting policy for long-lived, physical asset used in normal conduct of business and not intended for resale. Includes, but is not limited to, work of art, historical treasure, and similar asset classified as collections. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=120429125&loc=d3e99779-112916 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.13(a)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=120429125&loc=d3e99893-112916 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 + Details Name: us-gaap_PropertyPlantAndEquipmentPolicyTextBlock Namespace Prefix: us-gaap_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

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- Definition Disclosure of accounting policy for receivable. Includes, but is not limited to, accounts receivable and financing receivable. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=123577603&loc=d3e5033-111524 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 20 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=84159169&loc=d3e10178-111534 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=84159169&loc=d3e10149-111534 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=84159169&loc=d3e10133-111534 + Details Name: us-gaap_ReceivablesPolicyTextBlock Namespace Prefix: us-gaap_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

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- Definition Disclosure of accounting policy for revenue from contract with customer. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130561-203045 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 20 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130566-203045 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 18 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130563-203045 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -URI http://asc.fasb.org/topic&trid=49130388 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 20 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130566-203045 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 18 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130563-203045 Reference 7: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=123372394&loc=d3e18823-107790 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 20 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130566-203045 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 19 -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130564-203045 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 20 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130566-203045 + Details Name: us-gaap_RevenueFromContractWithCustomerPolicyTextBlock Namespace Prefix: us-gaap_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

X

- Definition Disclosure of accounting policy for standard warranties including the methodology for measuring the liability. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123368208&loc=d3e12565-110249 + Details Name: us-gaap_StandardProductWarrantyPolicy Namespace Prefix: us-gaap_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

X

- Definition Disclosure of accounting policy for redeemable preferred stock issued. This disclosure may include the accounting treatment for the difference, if there is any, between the carrying value and redemption amount. For example, describe whether the issuer accretes changes in the redemption value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 05 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=123467743&loc=d3e20905-112640 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(27)(b)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(27)(c)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details Name: us-gaap_StockholdersEquityNoteRedeemablePreferredStockIssuePolicy Namespace Prefix: us-gaap_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

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- Definition Disclosure of accounting policy for the use of estimates in the preparation of financial statements in conformity with generally accepted accounting principles. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6191-108592 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6161-108592 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6143-108592 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e5967-108592 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6061-108592 Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6132-108592 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e5967-108592 + Details Name: us-gaap_UseOfEstimates Namespace Prefix: us-gaap_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

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- Definition Accounts Receivable Securitization, Policy + References No definition available. + Details Name: wab_AccountsReceivableSecuritizationPolicyPolicyTextBlock Namespace Prefix: wab_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

X

- Definition Non controlling interests policy. + References No definition available. + Details Name: wab_NoncontrollingInterestsPolicyPolicyTextBlock Namespace Prefix: wab_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

v3.22.0.1

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)	12 Months Ended
	Dec. 31, 2021
Accounting Policies [Abstract]
Summary of Receivables Sold	The following table sets forth a summary of receivables sold: In millions Twelve Months Ended December 31, 2021 Twelve Months Ended December 31, 2020 Gross receivables sold/cash proceeds received $ 1,319  $ 852  Collections reinvested under revolving agreement 1,372  779  Net cash proceeds (remitted) received (53) 73

X

- References No definition available. + Details Name: us-gaap_AccountingPoliciesAbstract Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

X

- Definition Tabular disclosure of derecognized financial assets from transactions which comprise an initial transfer and an agreement entered into in contemplation of the initial transfer resulting in retention of substantially all of the exposure to the economic return throughout the term of the transaction. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 20 -Section 50 -Paragraph 4D -URI http://asc.fasb.org/extlink&oid=121570589&loc=SL51823488-111719 + Details Name: us-gaap_TransferOfFinancialAssetsAccountedForAsSalesTableTextBlock Namespace Prefix: us-gaap_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

v3.22.0.1

ACQUISITIONS (Tables)	12 Months Ended
	Dec. 31, 2021
Business Combination and Asset Acquisition [Abstract]
Summary of Fair Value of Assets Acquired and Liabilities Assumed	The following table summarizes the preliminary fair value of the Nordco assets acquired and liabilities assumed: In millions Assets acquired Cash and cash equivalents $ 5  Accounts receivable 23  Inventory 34  Other current assets 2  Property, plant and equipment 17  Goodwill 214  Other intangible assets 168  Other noncurrent assets 12  Total assets acquired 475  Liabilities assumed Current liabilities 19  Noncurrent liabilities 46  Total liabilities assumed 65  Net assets acquired $ 410  The following table summarizes the final fair value of the GE Transportation assets acquired and liabilities assumed: In millions Assets acquired Cash and cash equivalents $ 177  Accounts receivable 541  Inventories 1,190  Other current assets 71  Property, plant, and equipment 1,089  Goodwill 5,984  Trade names 55  Customer relationships 550  Intellectual property 1,180  Backlog 1,450  Other noncurrent assets 321  Total assets acquired 12,608  Liabilities assumed Current liabilities 1,594  Contingent consideration 440  Other noncurrent liabilities 667  Total liabilities assumed 2,701  Net assets acquired 9,907  Noncontrolling interest $ 88
Pro Forma Financial Information	The following unaudited pro forma consolidated financial information presents income statement results as if the GE Transportation acquisition had occurred January 1, 2018: In millions, except per share data Twelve Months Ended December 31, 2019 Net sales $ 8,676  Gross profit 2,343  Net income attributable to Wabtec shareholders 277  Diluted earnings per share As Reported $ 1.84  Pro forma $ 1.45

X

- Definition Tabular disclosure of pro forma results of operations for a material business acquisition or series of individually immaterial business acquisitions that are material in the aggregate. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(2) -URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(3) -URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463 + Details Name: us-gaap_BusinessAcquisitionProFormaInformationTextBlock Namespace Prefix: us-gaap_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

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- References No definition available. + Details Name: us-gaap_BusinessCombinationAndAssetAcquisitionAbstract Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

X

- Definition Tabular disclosure of the amounts recognized as of the acquisition date for each major class of assets acquired and liabilities assumed. May include but not limited to the following: (a) acquired receivables; (b) contingencies recognized at the acquisition date; and (c) the fair value of noncontrolling interests in the acquiree. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=123413009&loc=d3e4845-128472 + Details Name: us-gaap_ScheduleOfRecognizedIdentifiedAssetsAcquiredAndLiabilitiesAssumedTableTextBlock Namespace Prefix: us-gaap_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

v3.22.0.1

SUPPLEMENTAL CASH FLOW DISCLOSURES (Tables)	12 Months Ended
	Dec. 31, 2021
Supplemental Cash Flow Elements [Abstract]
Schedule of Cash Flow Disclosures	Year Ended December 31,   2021 2020 2019 In millions       Interest paid during the year $ 164  $ 174  $ 193  Income taxes paid during the year, net of amount refunded $ 123  $ 129  $ 100  Business acquisitions:       Fair value of assets acquired $ 507  $ 70  $ 12,613  Liabilities assumed 68  35  2,466  Non-controlling interest (acquired) assumed (1) (6) 31  Stock and cash paid 440  41  10,116  Less: Cash acquired 5  1  180            Stock used for acquisition —  —  6,940  Net cash paid $ 435  $ 40  $ 2,996

X

- Definition Tabular disclosure of supplemental cash flow information for the periods presented. + References No definition available. + Details Name: us-gaap_ScheduleOfCashFlowSupplementalDisclosuresTableTextBlock Namespace Prefix: us-gaap_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

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- References No definition available. + Details Name: us-gaap_SupplementalCashFlowElementsAbstract Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

v3.22.0.1

INVENTORIES (Tables)	12 Months Ended
	Dec. 31, 2021
Inventory Disclosure [Abstract]
Components of Inventory, Net of Reserves	The components of inventory, net of reserves, were:     December 31, In millions 2021 2020 Raw materials $ 757  $ 670  Work-in-progress 316  339  Finished goods 616  633  Total inventories $ 1,689  $ 1,642

X

- References No definition available. + Details Name: us-gaap_InventoryDisclosureAbstract Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

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- Definition Tabular disclosure of the carrying amount as of the balance sheet date of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(6)(c)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(6)(b)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(6)(a)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6361739&loc=d3e7789-107766 + Details Name: us-gaap_ScheduleOfInventoryCurrentTableTextBlock Namespace Prefix: us-gaap_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

v3.22.0.1

PROPERTY, PLANT & EQUIPMENT (Tables)	12 Months Ended
	Dec. 31, 2021
Property, Plant and Equipment [Abstract]
Major Classes of Depreciable Assets	The major classes of depreciable assets are as follows:   December 31, In millions 2021 2020 Machinery and equipment $ 1,433  $ 1,375  Buildings and improvements 785  801  Land and improvements 96  98  Construction in progress 89  99  Property, plant and equipment 2,403  2,373  Less: accumulated depreciation (906) (772) Total $ 1,497  $ 1,601   The estimated useful lives of property, plant and equipment are as follows:   Years Land improvements 10 to 20 Building and improvements 20 to 40 Machinery and equipment 3 to 15

X

- References No definition available. + Details Name: us-gaap_PropertyPlantAndEquipmentAbstract Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

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- Definition Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(13)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 + Details Name: us-gaap_PropertyPlantAndEquipmentTextBlock Namespace Prefix: us-gaap_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

v3.22.0.1

INTANGIBLES (Tables)	12 Months Ended
	Dec. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Change in the Carrying Amount of Goodwill by Segment	The change in the carrying amount of goodwill by segment is as follows: In millions Freight Segment Transit Segment Total Balance at December 31, 2019 $ 6,877  $ 1,484  $ 8,361  Additions 2  —  2  Disposals (6) —  (6) Foreign currency impact (1) 129  128  Balance at December 31, 2020 $ 6,872  $ 1,613  $ 8,485  Additions 214  15  229  Foreign currency impact (13) (114) (127) Balance at December 31, 2021 $ 7,073  $ 1,514  $ 8,587
Intangible Assets of the Company, Other Than Goodwill and Trademarks	Intangible assets of the Company, other than goodwill and trade names, consist of the following:   December 31, In millions 2021 2020 Intellectual property, patents, and other intangibles, net of accumulated amortization of $334 and $223 $ 977  $ 1,008  Backlog, net of accumulated amortization of $309 and $206 1,114  1,224  Customer relationships, net of accumulated amortization of $331 and $276 979  986  Total $ 3,070  $ 3,218
Estimated Amortization Expense Five Succeeding Years	Estimated amortization expense for the five succeeding years is as follows (in millions): 2022 $ 291  2023 $ 290  2024 $ 281  2025 $ 278  2026 $ 274

X

- References No definition available. + Details Name: us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

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- Definition Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details Name: us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock Namespace Prefix: us-gaap_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

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- Definition Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13854-109267 + Details Name: us-gaap_ScheduleOfGoodwillTextBlock Namespace Prefix: us-gaap_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

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- Definition Tabular disclosure of the amount of amortization expense expected to be recorded in succeeding fiscal years for finite-lived intangible assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details Name: us-gaap_ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock Namespace Prefix: us-gaap_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

v3.22.0.1

CONTRACT ASSETS AND CONTRACT LIABILITIES (Tables)	12 Months Ended
	Dec. 31, 2021
Revenue from Contract with Customer [Abstract]
Contract with Customer, Asset and Liability	The following table reconciles the changes in the Company’s contract assets and liabilities as follows: Contract Assets In millions 2021 2020 Balance at beginning of year $ 544  $ 623  Acquisitions —  4  Recognized in current year 617  850  Reclassified to accounts receivable (602) (950) Foreign currency impact (14) 17  Balance at end of year $ 545  $ 544  Contract Liabilities In millions 2021 2020 Balance at beginning of year $ 832  $ 800  Acquisitions 2  7  Recognized in current year 740  872  Amounts in beginning balance reclassified to revenue (463) (532) Current year amounts reclassified to revenue (273) (326) Foreign currency impact (14) 11  Balance at end of year $ 824  $ 832

X

- Definition Tabular disclosure of receivable, contract asset, and contract liability from contract with customer. Includes, but is not limited to, change in contract asset and contract liability. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130551-203045 + Details Name: us-gaap_ContractWithCustomerAssetAndLiabilityTableTextBlock Namespace Prefix: us-gaap_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

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- References No definition available. + Details Name: us-gaap_RevenueFromContractWithCustomerAbstract Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

v3.22.0.1

LONG-TERM DEBT (Tables)	12 Months Ended
	Dec. 31, 2021
Debt Disclosure [Abstract]
Schedule of Long-Term Debt	Long-term debt consisted of the following:   December 31, Effective Interest Rate 2021 2020 In millions Face Value Book Value Fair Value 1 Book Value Fair Value 1 Senior Credit and 364 Day Facility2: U.S. dollar-denominated Term Loans3 —  % N/A $ —  $ —  $ 645  $ 645  Multi-Currency Revolving loan facility 1.5  % N/A —  —  —  —  Senior Notes: 4.375% Senior Notes, due 2023 4.5  % $ 250  250  260  249  267  4.15% Senior Notes, due 2024 4.6  % $ 750  747  796  746  817  3.20% Senior Notes, due 2025 3.4  % $ 500  497  523  496  533  3.45% Senior Notes, due 2026 3.5  % $ 750  749  795  749  820  1.25% Senior Notes (EUR), due 2027 1.5  % € 500  560  574  —  —  4.70% Senior Notes, due 2028 5.0  % $ 1,250  1,243  1,423  1,242  1,472  Other Borrowings 12  12  112  113  Total 4,058  4,383  4,239  4,667  Less: current portion 2  2  447  447  Long-term portion $ 4,056  $ 4,381  $ 3,792  $ 4,220  1. See Note 17 for information on the fair value measurement of the Company's long-term debt. 2. During the second quarter of 2021, the Company repaid all outstanding term loan borrowings and related interest under the Senior Credit Facility and the 364 Day Facility. 3. U.S. dollar-denominated Term Loans includes the total outstanding balance of term loans denominated in U.S. dollars from the Senior Credit Facility and the 364 Day Facility. Variances between Face Value and Book Value are the result of unamortized discounts and debt issuance fees. The Company borrows and repays against the Multi-Currency Revolving loan facility for added flexibility in liquidity to manage cash during the operating cycle. The proceeds from borrowing and the repayments are included within the Financing Activities section of the Consolidated Statements of Cash Flows. As of December 31, 2021, the annual repayment requirements for debt obligations are as follows: In millions 2022 $ 2  2023 250  2024 762  2025 500  2026 750  Thereafter 1,817  Total $ 4,081
Interest Coverage Ratio & Leverage Ratio	The Company has agreed that, so long as any lender has any commitment under the Senior Credit Facility, any letter of credit is outstanding under the Senior Credit Facility, or any loan or other obligation is outstanding under the Senior Credit Facility, it will maintain the following as of the end of each fiscal quarter or the period of four quarters the ended: Interest Coverage Ratio 1 3.0x Leverage Ratio 2 3.25x 1. The interest coverage ratio is defined as EBITDA (earnings before interest, taxes, depreciation, and amortization), as defined in the Senior Credit Facility, to net interest expense for the four quarters then ended. 2. The leverage ratio is defined as net debt as of the last day of such fiscal quarter to EBITDA, as defined in the Senior Credit Facility for the four quarters then ended.
Schedule of Line of Credit Facilities	The following table presents availability under the Revolving Facilities: (in millions) Revolving Credit Facility Maximum Availability $ 1,200  Letters of Credit Under Credit Agreement (3) Current Availability $ 1,197

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- Definition Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-04(a)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e24072-122690 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=124435984&loc=d3e28541-108399 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=123467817&loc=d3e21506-112644 Reference 5: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 55 -Paragraph 69B -URI http://asc.fasb.org/extlink&oid=123466577&loc=SL123495735-112612 Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=124435984&loc=d3e28551-108399 Reference 7: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 55 -Paragraph 69E -URI http://asc.fasb.org/extlink&oid=123466577&loc=SL123495743-112612 Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=123467817&loc=d3e21521-112644 Reference 9: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=123467817&loc=d3e21538-112644 Reference 10: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=123599511&loc=d3e64711-112823 Reference 11: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400 Reference 12: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=123467817&loc=d3e21475-112644 + Details Name: us-gaap_ScheduleOfDebtInstrumentsTextBlock Namespace Prefix: us-gaap_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

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- Definition Tabular disclosure of short-term or long-term contractual arrangements with lenders, including letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details Name: us-gaap_ScheduleOfLineOfCreditFacilitiesTextBlock Namespace Prefix: us-gaap_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

v3.22.0.1

EMPLOYEE BENEFIT PLANS (Tables)	12 Months Ended
	Dec. 31, 2021
Retirement Benefits [Abstract]
Obligations and Funded Status	The following tables provide information regarding the Company’s significant defined benefit pension plans summarized by U.S. and international components. Obligations and Funded Status   U.S. International In millions 2021 2020 2021 2020 Change in projected benefit obligation         Obligation at beginning of year $ (43) $ (41) $ (385) $ (347) Service cost —  —  (4) (4) Interest cost (1) (1) (4) (6) Employee contributions —  —  (1) —  Plan settlements and amendments —  —  1  (2) Benefits paid 3  3  13  14  Actuarial gain (loss) 2  (4) 15  (22) Effect of currency rate changes —  —  9  (18) Obligation at end of year $ (39) $ (43) $ (356) $ (385) Change in plan assets         Fair value of plan assets at beginning of year $ 36  $ 34  $ 305  $ 270  Actual return on plan assets 2  4  11  25  Employer contributions 5  1  11  10  Employee contributions —  —  1  1  Benefits paid (3) (3) (13) (14) Settlements and other —  —  (3) 2  Effect of currency rate changes —  —  (5) 11  Fair value of plan assets at end of year $ 40  $ 36  $ 307  $ 305  Funded status         Fair value of plan assets $ 40  $ 36  $ 307  $ 305  Benefit obligations (39) (43) (356) (385) Funded status $ 1  $ (7) $ (49) $ (80) Amounts recognized in the statement of financial position consist of:         Noncurrent assets $ 1  $ —  $ 17  $ 14  Current liabilities —  —  (2) (3) Noncurrent liabilities —  (7) (64) (91) Net amount recognized $ 1  $ (7) $ (49) $ (80) Amounts recognized in Accumulated other comprehensive loss, before tax consist of:         Prior service cost —  —  (1) (1) Net actuarial loss (16) (19) (70) (90) Net amount recognized $ (16) $ (19) $ (71) $ (91)
Schedule of U.S. and International Pension Plans with Accumulated Benefit Obligations and with Projected Benefit Obligations in Excess of Plan Assets	U.S. International In millions 2021 2020 2021 2020 Information for pension plans with accumulated benefit obligations in excess of Plan assets:         Projected benefit obligation N/A $ (43) $ (107) $ (316) Accumulated benefit obligation N/A (42) (97) (304) Fair value of plan assets N/A 36  41  222  Information for pension plans with projected benefit obligations in excess of plan assets:       Projected benefit obligation N/A $ (43) $ (112) $ (317) Accumulated benefit obligation N/A (42) (101) (305) Fair value of plan assets N/A 36  45  224
Components of Net Periodic Benefit Costs	Components of Net Periodic Benefit Costs   U.S. International In millions 2021 2020 2019 2021 2020 2019 Service cost $ —  $ —  $ —  $ 4  $ 4  $ 3  Interest cost 1  1  2  4  6  7  Expected return on plan assets (1) (1) (2) (13) (12) (12) Amortization of net loss 1  1  1  4  3  3  Settlement and curtailment losses recognized —  —  —  1  —  —  Net periodic benefit cost $ 1  $ 1  $ 1  $ —  $ 1  $ 1
Other Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income	Other Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income during 2021 are as follows: In millions U.S. International Net gain arising during the year $ 2  $ 13  Effect of exchange rates and other —  2  Total benefit recognized in Other comprehensive income $ 2  $ 15  Total benefit recognized in Net periodic benefit cost and Other comprehensive income $ 1  $ 15
Weighted Average Assumptions Used to Develop Actuarial Present Value of Projected Benefit Obligation	The weighted average assumptions in the following table represent the rates used to develop the actuarial present value of the projected benefit obligation for the year listed.   U.S. International   2021 2020 2019 2021 2020 2019 Discount rate 2.87  % 2.47  % 3.27  % 1.97  % 1.39  % 1.84  % Expected return on plan assets 5.00  % 5.35  % 5.35  % 4.27  % 4.43  % 5.01  % Rate of compensation increase 3.00  % 3.00  % 3.00  % 2.70  % 2.65  % 2.64  %
Pension Plan Assets by Asset Category	Plan assets by asset category at December 31, 2021 and 2020 are as follows:   U.S. International In millions 2021 2020 2021 2020 Pension Plan Assets         Equity security funds $ 10  $ 19  $ 87  $ 75  Debt security funds 27  16  194  198  Insurance Contracts —  —  15  15  Cash and cash equivalents and other 3  1  11  17  Fair value of plan assets $ 40  $ 36  $ 307  $ 305
Schedule of Pension Plan Assets Measured at Fair Value	The following tables summarize our pension plan assets measured at fair value on a recurring basis by fair value hierarchy level (See Note 17): December 31, 2021 In millions NAV Level 1 Level 2 Level 3 Total US:           Equity $ —  $ 10  $ —  $ —  $ 10  Debt Securities —  15  12  —  27  Cash and cash equivalents —  3  —  —  3  International:           Equity 7  20  60  —  87  Debt Securities —  4  190  —  194  Insurance Contracts —  —  5  10  15  Cash and cash equivalents and other —  6  5  —  11  Total $ 7  $ 58  $ 272  $ 10  $ 347  December 31, 2020 In millions NAV Level 1 Level 2 Level 3 Total US:           Equity $ —  $ 19  $ —  $ —  $ 19  Debt Securities —  6  10  —  16  Cash and cash equivalents —  1  —  —  1  International:           Equity 6  22  47  —  75  Debt Securities —  3  195  —  198  Insurance Contracts —  —  5  10  15  Cash and cash equivalents and other —  9  8  —  17  Total $ 6  $ 60  $ 265  $ 10  $ 341
Benefit Payments Expected to be Paid to Plan Participants	Benefit payments expected to be paid to plan participants are as follows: In millions U.S. International Year ended December 31,     2022 $ 3  $ 14  2023 $ 3  $ 15  2024 $ 3  $ 15  2025 $ 3  $ 16  2026 $ 3  $ 16  2027 through 2031 $ 12  $ 90

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- Definition Tabular disclosure of benefit obligation and plan assets of defined benefit plan with accumulated benefit obligation in excess of plan assets. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e2417-114920 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e2417-114920 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=123450688&loc=d3e4179-114921 + Details Name: us-gaap_ScheduleOfAccumulatedBenefitObligationsInExcessOfFairValueOfPlanAssetsTableTextBlock Namespace Prefix: us-gaap_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

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- Definition Tabular disclosure of the major categories of plan assets of pension plans and/or other employee benefit plans. This information may include, but is not limited to, the target allocation of plan assets, the fair value of each major category of plan assets, and the level within the fair value hierarchy in which the fair value measurements fall. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(5) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details Name: us-gaap_ScheduleOfAllocationOfPlanAssetsTableTextBlock Namespace Prefix: us-gaap_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

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- Definition Tabular disclosure of assumption used to determine benefit obligation and net periodic benefit cost of defined benefit plan. Includes, but is not limited to, discount rate, rate of compensation increase, expected long-term rate of return on plan assets and interest crediting rate. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (k) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details Name: us-gaap_ScheduleOfAssumptionsUsedTableTextBlock Namespace Prefix: us-gaap_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

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- Definition Tabular disclosure of the reconciliation of beginning and ending balances of the fair value of plan assets of pension plans and/or other employee benefit plans showing separately, if applicable, the effects during the period attributable to each of the following: actual return on plan assets, foreign currency exchange rate changes, contributions by the employer, contributions by plan participants, benefits paid, business combinations, divestitures, and settlements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details Name: us-gaap_ScheduleOfChangesInFairValueOfPlanAssetsTableTextBlock Namespace Prefix: us-gaap_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

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- Definition Tabular disclosure of one or more of the entity's defined benefit pension plans or one or more other defined benefit postretirement plans, separately for pension plans and other postretirement benefit plans including the entity's schedule of fair value of plan assets for defined benefit or other postretirement plans. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=123450688&loc=d3e4179-114921 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e2439-114920 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e2410-114920 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e2417-114920 + Details Name: us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTextBlock Namespace Prefix: us-gaap_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

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- Definition Tabular disclosure of benefits expected to be paid by pension plans and/or other employee benefit plans in each of the next five fiscal years and in the aggregate for the five fiscal years thereafter. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details Name: us-gaap_ScheduleOfExpectedBenefitPaymentsTableTextBlock Namespace Prefix: us-gaap_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

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- Definition Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details Name: us-gaap_ScheduleOfNetBenefitCostsTableTextBlock Namespace Prefix: us-gaap_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

v3.22.0.1

INCOME TAXES (Tables)	12 Months Ended
	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Components of Income from Operations before Provision for Income Taxes	The components of the income before income taxes for the Company’s domestic and foreign operations for the years ended December 31 are provided below: For the year ended December 31, In millions 2021 2020 2019 Domestic $ 253  $ 78  $ 118  Foreign 484  479  329  Income before income taxes $ 737  $ 557  $ 447
Consolidated Provision for Income Taxes	The consolidated provision for income taxes included in the Consolidated Statements of Income consisted of the following: For the year ended December 31, In millions 2021 2020 2019 Current tax expense (benefit)       Federal $ (81) $ 6  $ 5  State 27  17  1  Foreign 138  93  141    84  116  147  Deferred tax expense (benefit)       Federal 87  36  20  State 10  (2) 3  Foreign (9) (5) (50)   88  29  (27) Total provision $ 172  $ 145  $ 120
Reconciliation of Income Tax Rate	A reconciliation of the United States federal statutory income tax rate to the effective income tax rate on operations for the years ended December 31 is provided below: For the year ended December 31, In millions 2021 2020 2019 U.S. federal statutory rate 21.0  % 21.0  % 21.0  % State taxes 0.3  2.6  0.8  Foreign 3.3  4.4  (0.4) Research and development credit (0.8) (1.3) (1.7) U.S. net operating loss carryback (3.4) —  —  Changes in valuation allowance 3.0  (2.0) 3.5  U.S. tax reform provision 0.7  1.3  2.0  Transaction costs related to acquisitions 0.1  —  1.0  Other, net (1.0) —  0.7  Effective rate 23.2  % 26.0  % 26.9  %
Components of Deferred Tax Assets and Liabilities	Components of deferred tax assets and liabilities were as follows:   December 31, In millions 2021 2020 Deferred income tax assets:     Accrued expenses and reserves $ 44  $ 39  Warranty reserve 53  51  Deferred compensation/employee benefits 62  43  Right-of-use asset 76  70  Pension and postretirement obligations 24  26  Property, plant & equipment —  48  Inventory 46  45  Net operating loss carry forwards 102  83  Other 102  46  Gross deferred income tax assets 509  451  Less: Valuation allowance (64) (42) Total deferred income tax assets 445  409  Deferred income tax liabilities:     Property, plant & equipment 85  —  Right-of-use liability 78  69  Intangibles 503  444  Total deferred income tax liabilities 666  513  Net deferred income tax liability $ 221  $ 104
Liability for Income Taxes Associated with Uncertain Tax Positions	A reconciliation of the beginning and ending amount of the liability for income taxes associated with unrecognized tax benefits follows: In millions 2021 2020 2019 Gross liability for unrecognized tax benefits at beginning of year $ 16  $ 17  $ 9  Gross increases - unrecognized tax benefits in prior periods 19  4  10  Gross decreases - audit settlement during year (1) (5) —  Gross decreases - expiration of audit statute of limitations (2) —  (2) Gross liability for unrecognized tax benefits at end of year $ 32  $ 16  $ 17

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- Definition Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32639-109319 + Details Name: us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock Namespace Prefix: us-gaap_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

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- Definition Tabular disclosure of income before income tax between domestic and foreign jurisdictions. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(h)(1)(Note 1)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 + Details Name: us-gaap_ScheduleOfIncomeBeforeIncomeTaxDomesticAndForeignTableTextBlock Namespace Prefix: us-gaap_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

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- Definition Tabular disclosure for tax positions taken in the tax returns filed or to be filed for which it is more likely than not that the tax position will not be sustained upon examination by taxing authorities and other income tax contingencies. Includes, but is not limited to, interest and penalties, reconciliation of unrecognized tax benefits, unrecognized tax benefits that would affect the effective tax rate, tax years that remain subject to examination by tax jurisdictions, and information about positions for which it is reasonably possible that amounts unrecognized will significantly change within 12 months. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -URI http://asc.fasb.org/extlink&oid=121826272&loc=SL6600010-109319 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32718-109319 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 19 -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32840-109319 + Details Name: us-gaap_SummaryOfIncomeTaxContingenciesTextBlock Namespace Prefix: us-gaap_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

v3.22.0.1

EARNINGS PER SHARE (Tables)	12 Months Ended
	Dec. 31, 2021
Earnings Per Share [Abstract]
Computation of Earnings Per Share	The computation of earnings per share from operations is as follows: For the Year Ended December 31, In millions, except per share data 2021 2020 2019 Numerator Net income attributable to Wabtec common shareholders - basic $ 556  $ 413  $ 325  Add: dividends declared - preferred shares —  —  1  Net income attributable to Wabtec common shareholders - diluted $ 556  $ 413  $ 326  Denominator Weighted average shares outstanding - basic 187.7  189.9  170.5  Effect of dilutive securities: Assumed conversion of preferred shares —  —  6.4  Assumed conversion of dilutive stock-based compensation plans 0.4  0.5  0.4  Weighted average shares outstanding - diluted 188.1  190.4  177.3  Net income per common share attributable to Wabtec shareholders Basic $ 2.96  $ 2.18  $ 1.91  Diluted $ 2.96  $ 2.17  $ 1.84

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- References No definition available. + Details Name: us-gaap_EarningsPerShareAbstract Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 + Details Name: us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock Namespace Prefix: us-gaap_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

v3.22.0.1

STOCK-BASED COMPENSATION PLANS (Tables)	12 Months Ended
	Dec. 31, 2021
Share-based Payment Arrangement [Abstract]
Stock Option Activity	The following table summarizes the Company’s stock option activity and related information for the 2011 Plan, the 2000 Plan and Directors Plan for the years ended December 31:  Options Weighted Average Exercise Price Weighted Average Remaining Contractual Life Aggregate Intrinsic value (in millions) Outstanding at December 31, 2018 466,677  $ 61.04  5.7 $ 4  Granted 134,450  $ 70.44    $ 1  Exercised (4,868) $ 22.45    —  Canceled (8,235) $ 73.00    —  Outstanding at December 31, 2019 588,024  $ 63.36  5.7 $ 9  Granted 136,506  $ 77.75    —  Exercised (86,145) $ 35.47    —  Canceled (85,716) $ 73.73    —  Outstanding at December 31, 2020 552,669  $ 69.82  6.1 $ 4  Granted 126,794  $ 81.21    —  Exercised (113,728) $ 50.38    —  Canceled (33,820) $ 73.53    —  Outstanding at December 31, 2021 531,915  $ 75.40  6.5 $ 9  Exercisable at December 31, 2021 308,591  $ 73.39  6.1 $ 6
Stock Options Outstanding	Options outstanding at December 31, 2021 were as follows:   Range of exercise prices Number of Options Outstanding Weighted Average Exercise Price of Options Outstanding Weighted Average Remaining Contractual Life Number of Options Currently Exercisable Weighted Average Exercise Price of Options Currently Exercisable 35.00 - 50.00 35,002  $ 47.80  1.1 35,002  $ 47.80  50.00 - 65.00 40,317  $ 59.09  4.6 37,217  $ 60.52  65.00 - 80.00 248,483  $ 74.43  6.9 143,862  $ 73.37  Over 80.00 208,113  $ 84.36  7.3 92,510  $ 88.28    531,915  $ 75.40  6.5 308,591  $ 73.39
Share-Based Fair Value of Each Option Grant Weighted-Average Assumptions	The fair value of each option grant is estimated on the date of grant using the Black-Scholes option-pricing model with the following weighted-average assumptions: For the year ended December 31,   2021 2020 2019 Dividend yield 0.60  % 0.60  % 0.66  % Risk-free interest rate 0.8  % 1.5  % 2.6  % Stock price volatility 36.1  % 28.1  % 25.8  % Expected life (years) 5.0 5.0 5.0 Weighted average fair value of options granted during the year $ 25.01  $ 21.05  $ 19.54
Restricted Stock Activity and Incentive Stock Awards Activity	The following table summarizes the restricted stock activity and related information for the 2011 Plan, the 2000 Plan, and Directors Plan, and incentive stock units activity and related information for the 2011 Plan and the 2000 Plan with related information for the years ended December 31: Restricted Stock and Units Incentive Stock Awards Weighted Average Grant Date Fair Value Outstanding at December 31, 2018 445,089  415,242  $ 75.51  Granted 608,813  259,950  $ 70.61  Vested (235,406) (119,835) $ 71.65  Adjustment for incentive stock awards expected to vest —  80,403  $ 78.04  Canceled (27,465) (63,758) $ 74.04  Outstanding at December 31, 2019 791,031  572,002  $ 73.64  Granted 283,587  250,197  $ 75.68  Vested (345,859) (147,069) $ 77.45  Adjustment for incentive stock awards expected to vest —  (331,004) $ 71.32  Canceled (72,753) (73,481) $ 72.83  Outstanding at December 31, 2020 656,006  270,645  $ 73.80  Granted 235,902  241,467  $ 81.64  Vested (350,955) (37,672) $ 71.82  Adjustment for incentive stock awards expected to vest —  180,767  $ 76.26  Canceled (33,255) (48,106) $ 76.24  Outstanding at December 31, 2021 507,698  607,101  $ 78.06

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- References No definition available. + Details Name: us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

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- Definition Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details Name: us-gaap_ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTextBlock Namespace Prefix: us-gaap_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details Name: us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock Namespace Prefix: us-gaap_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details Name: us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock Namespace Prefix: us-gaap_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

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- Definition Schedule of restricted stock activity and incentive stock awards activity. + References No definition available. + Details Name: wab_ScheduleOfRestrictedStockActivityAndIncentiveStockAwardsActivityTableTableTextBlock Namespace Prefix: wab_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

v3.22.0.1

ACCUMULATED OTHER COMPREHENSIVE LOSS (Tables)	12 Months Ended
	Dec. 31, 2021
Equity [Abstract]
Changes in Accumulated Other Comprehensive Loss by Component, Net of Tax	The changes in Accumulated other comprehensive loss by component, net of tax, for the years ended December 31, 2021, 2020, and 2019 are as follows: In millions Foreign currency translation Derivative contracts Pension and post retirement benefit plans Total Balance at December 31, 2018 $ (202) $ —  $ (55) $ (257) Other comprehensive loss before reclassifications (106) (3) (19) (128) Amounts reclassified from Accumulated other comprehensive loss —  —  2  2  Other comprehensive loss, net (106) (3) (17) (126) Balance at December 31, 2019 $ (308) $ (3) $ (72) $ (383) Other comprehensive income (loss) before reclassifications 48  6  (13) 41  Amounts reclassified from Accumulated other comprehensive loss —  —  3  3  Other comprehensive income (loss), net 48  6  (10) 44  Balance at December 31, 2020 $ (260) $ 3  $ (82) $ (339) Other comprehensive (loss) income before reclassifications (136) (8) 13  (131) Amounts reclassified from Accumulated other comprehensive loss —  —  4  4  Other comprehensive (loss) income, net (136) (8) 17  (127) Balance at December 31, 2021 $ (396) $ (5) $ (65) $ (466) Amounts reclassified from Accumulated other comprehensive loss are recognized in "Other income, net" with the tax impact recognized in "Income tax expense" on the Consolidated Statements of Income.

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- References No definition available. + Details Name: us-gaap_EquityAbstract Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6450520&loc=d3e32583-110901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=124509347&loc=SL7669686-108580 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 45 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900 + Details Name: us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock Namespace Prefix: us-gaap_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

v3.22.0.1

LEASES (Tables)	12 Months Ended
	Dec. 31, 2021
Leases [Abstract]
Maturity of Operating Lease Liabilities	Scheduled payments of Operating lease liabilities are as follows: In millions Operating Leases 2022 $ 60  2023 52  2024 47  2025 40  2026 33  Thereafter 113  Total lease payments 345  Less: Present value discount (27) Present value lease liabilities $ 318
Lease Expense and Lease Term and Discount Rate	The following table summarizes the remaining lease term and discount rate assumptions used to develop the present value of lease liabilities: December 31, 2021 December 31, 2020 Weighted-average remaining lease term (years) Operating leases 8.2 7.4 Weighted-average discount rate Operating leases 2.3  % 2.7  %

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- Definition Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980 + Details Name: us-gaap_LeaseCostTableTextBlock Namespace Prefix: us-gaap_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

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- References No definition available. + Details Name: us-gaap_LeasesAbstract Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

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- Definition Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918701-209980 + Details Name: us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock Namespace Prefix: us-gaap_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

v3.22.0.1

WARRANTIES (Tables)	12 Months Ended
	Dec. 31, 2021
Product Warranties Disclosures [Abstract]
Changes in Product Warranty Reserve	The following table reconciles the changes in the Company’s product warranty reserve as follows: In millions 2021 2020 Balance at beginning of year $ 279  $ 268  Acquisitions 2  4  Warranty expense 116  130  Warranty claim payments (124) (131) Foreign currency impact (14) 8  Balance at end of year $ 259  $ 279

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- References No definition available. + Details Name: us-gaap_ProductWarrantiesDisclosuresAbstract Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

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- Definition Tabular disclosure of the changes in the guarantor's aggregate product warranty liability, including the beginning balance of the aggregate product warranty liability, the aggregate reductions in that liability for payments made (in cash or in kind) under the warranty, the aggregate changes in the liability for accruals related to product warranties issued during the reporting period, the aggregate changes in the liability for accruals related to preexisting warranties (including adjustments related to changes in estimates), and the ending balance of the aggregate product warranty liability. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=123368208&loc=d3e12565-110249 + Details Name: us-gaap_ScheduleOfProductWarrantyLiabilityTableTextBlock Namespace Prefix: us-gaap_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

v3.22.0.1

FAIR VALUE MEASUREMENT AND DERIVATIVE INSTRUMENTS (Tables)	12 Months Ended
	Dec. 31, 2021
Fair Value Disclosures [Abstract]
Liabilities Carried at Fair Value Measured on Recurring Basis	The following table summarizes the assets, liabilities, gross notional amounts, fair values, and fair value hierarchy classification of the designated and non-designated hedges discussed in the above sections as of December 31, 2021, which are included in other current assets and liabilities on the Consolidated Balance Sheets: Fair Value Gross Notional Amount In millions Level Designated Non-Designated Designated Non-Designated Foreign Exchange Contracts Other current assets 2 $ 8  $ —  $ 627  $ —  Other current liabilities 2 (1) (2) 613  289  Cross-currency Swaps Other current assets 2 —  —  14  —  Total $ 7  $ (2) $ 1,254  $ 289  The following table summarizes the assets, liabilities, gross notional amounts, fair values, and fair value hierarchy classification of the designated and non-designated hedges discussed in the above sections as of December 31, 2020, which are included in other current assets and liabilities on the Consolidated Balance Sheets: Fair Value Gross Notional Amount In millions Level Designated Non-Designated Designated Non-Designated Foreign Exchange Contracts Other current assets 2 $ 9  $ 1  $ 794  $ 1  Other current liabilities 2 (4) (2) 928  320  Cross-currency Swaps Other current liabilities 2 (26) —  613  —  Total $ (21) $ (1) $ 2,335  $ 321

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- References No definition available. + Details Name: us-gaap_FairValueDisclosuresAbstract Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

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- Definition Tabular disclosure of liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). Where the quoted price in an active market for the identical liability is not available, the Level 1 input is the quoted price of an identical liability when traded as an asset. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258 + Details Name: us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisTextBlock Namespace Prefix: us-gaap_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

v3.22.0.1

SEGMENT INFORMATION (Tables)	12 Months Ended
	Dec. 31, 2021
Segment Reporting [Abstract]
Segment Financial Information	Segment financial information for 2021 is as follows:         In million Freight Segment Transit Segment Corporate Activities and Elimination Total Sales to external customers $ 5,239  $ 2,583  $ —  $ 7,822  Intersegment sales/(elimination) 48  33  (81) —  Total sales $ 5,287  $ 2,616  $ (81) $ 7,822  Income (loss) from operations $ 717  $ 238  $ (79) $ 876  Interest expense and other, net —  —  (139) (139) Income (loss) before income taxes $ 717  $ 238  $ (218) $ 737  Depreciation and amortization $ 405  $ 70  $ 16  $ 491  Capital expenditures $ 79  $ 48  $ 3  $ 130  Segment assets $ 18,291  $ 5,768  $ (5,605) $ 18,454  Segment financial information for 2020 is as follows: In millions Freight Segment Transit Segment Corporate Activities and Elimination Total Sales to external customers $ 5,082  $ 2,474  $ —  $ 7,556  Intersegment sales/(elimination) 49  37  (86) —  Total sales $ 5,131  $ 2,511  $ (86) $ 7,556  Income (loss) from operations $ 584  $ 230  $ (69) $ 745  Interest expense and other, net —  —  (188) (188) Income (loss) from operations before income taxes $ 584  $ 230  $ (257) $ 557  Depreciation and amortization $ 393  $ 67  $ 13  $ 473  Capital expenditures $ 70  $ 40  $ 26  $ 136  Segment assets $ 15,393  $ 6,395  $ (3,334) $ 18,454  Segment financial information for 2019 is as follows:         In millions Freight Segment Transit Segment Corporate Activities and Elimination Total Sales to external customers $ 5,441  $ 2,759  $ —  $ 8,200  Intersegment sales/(elimination) 60  23  (83) —  Total sales $ 5,501  $ 2,782  $ (83) $ 8,200  Income (loss) from operations $ 643  $ 214  $ (194) $ 663  Interest expense and other, net —  —  (216) (216) Income (loss) before income taxes $ 643  $ 214  $ (410) $ 447  Depreciation and amortization $ 330  $ 62  $ 9  $ 401  Capital expenditures $ 105  $ 64  $ 17  $ 186
Geographic Area Data	The following geographic area data as of and for the years ended December 31, 2021, 2020 and 2019, respectively, includes net sales based on product shipment destination and long-lived assets, which consist of plant, property and equipment, net of depreciation, resident in their respective countries: Net Sales Long-Lived Assets In millions 2021 2020 2019 2021 2020 United States $ 3,321  $ 3,161  $ 3,381  $ 983  $ 1,039  Canada 462  372  733  6  9  Mexico 220  187  357  22  23  North America 4,003  3,720  4,471  1,011  1,071  South America 301  217  218  32  32  United Kingdom 300  314  376  45  51  Germany 383  351  340  70  82  France 286  252  294  54  59  Italy 196  172  206  29  31  Switzerland 88  83  89  2  2  Other Europe 427  405  387  55  60  Europe 1,680  1,577  1,692  255  285  India 531  441  504  151  164  Australia / New Zealand 386  366  301  9  12  China 228  225  290  32  30  Other Asia / Middle East 177  199  216  —  1  Egypt 32  360  228  —  —  Other Africa 72  138  105  4  4  Russia / CIS 412  313  175  3  2  Total $ 7,822  $ 7,556  $ 8,200  $ 1,497  $ 1,601
Sales by Product	Net sales to external customers by product line are as follows: In millions 2021 2020 2019 Freight Segment: Services $ 2,430  $ 2,068  $ 1,991  Equipment 1,302  1,531  1,700  Components 867  819  1,073  Digital Electronics 640  664  677  Total Freight Segment sales $ 5,239  $ 5,082  $ 5,441  Transit Segment: Original Equipment Manufacturer 1,193  1,139  1,287  Aftermarket 1,390  1,335  1,472  Total Transit Segment sales $ 2,583  $ 2,474  $ 2,759

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- Definition Tabular disclosure of entity-wide revenues from external customers for each product or service or each group of similar products or services if the information is not provided as part of the reportable operating segment information. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 40 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9031-108599 + Details Name: us-gaap_ScheduleOfEntityWideInformationRevenueFromExternalCustomersByProductsAndServicesTextBlock Namespace Prefix: us-gaap_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

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- Definition Tabular disclosure of information concerning material long-lived assets (excluding financial instruments, customer relationships with financial institutions, mortgage and other servicing rights, deferred policy acquisition costs, and deferred taxes assets) located in identified geographic areas and/or the amount of revenue from external customers attributed to that country from which revenue is material. An entity may also provide subtotals of geographic information about groups of countries. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9038-108599 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227 + Details Name: us-gaap_ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsByGeographicalAreasTableTextBlock Namespace Prefix: us-gaap_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

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- Definition Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 25 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8813-108599 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8906-108599 + Details Name: us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock Namespace Prefix: us-gaap_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

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- References No definition available. + Details Name: us-gaap_SegmentReportingAbstract Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

v3.22.0.1

OTHER INCOME (EXPENSE), NET (Tables)	12 Months Ended
	Dec. 31, 2021
Other Income and Expenses [Abstract]
Components of Other Income (Expense)	The components of Other income, net are as follows: For the year ended December 31, In millions 2021 2020 2019 Foreign currency gain (loss) $ 8  $ (8) $ (14) Equity income 20  10  8  Expected return on pension assets/amortization 9  10  10  Other miscellaneous income (expense) 1  (1) (1) Total Other income, net $ 38  $ 11  $ 3

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v3.22.0.1

BUSINESS - Narrative (Details)	12 Months Ended
	Dec. 31, 2021 country
Product Information [Line Items]
Number of countries company operates (over)	50
Number of countries where product found (more than)	100
Revenue from Contract with Customer Benchmark | Geographic Concentration Risk | Non-US
Product Information [Line Items]
Revenues from customers outside the U.S.	60.00%

X

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details Name: us-gaap_ProductInformationLineItems Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

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v3.22.0.1

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Mar. 31, 2021	May 31, 2020
Summary Of Significant Accounting Policies [Line Items]
Allowance for doubtful accounts	$ 32,000,000	$ 37,000,000
Equity method investments	96,000,000	100,000,000
Foreign currency gain (loss)	8,000,000	(8,000,000)	$ (14,000,000)
Maximum recurring transfer (up to)				$ 200,000,000	$ 150,000,000
Accounts receivable	1,085,000,000	969,000,000
Deferred pre-production costs	$ 86,000,000	$ 87,000,000
Preferred stock, shares authorized (in shares)	1,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0
Collateral Pledged
Summary Of Significant Accounting Policies [Line Items]
Accounts receivable	$ 324,000,000	$ 114,000,000

X

- Definition Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=124259787&loc=d3e4428-111522 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(3)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=124098289&loc=d3e6676-107765 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=124259787&loc=d3e4531-111522 + Details Name: us-gaap_AccountsReceivableNetCurrent Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

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- Definition This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=109237563&loc=d3e33749-111570 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 25 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8813-108599 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.12) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details Name: us-gaap_EquityMethodInvestments Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

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- Definition The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details Name: us-gaap_PreferredStockSharesAuthorized Namespace Prefix: us-gaap_ Data Type: xbrli:sharesItemType Balance Type: na Period Type: instant

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- Definition Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 13 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496158-112644 + Details Name: us-gaap_PreferredStockSharesIssued Namespace Prefix: us-gaap_ Data Type: xbrli:sharesItemType Balance Type: na Period Type: instant

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- Definition Aggregate share number for all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by stockholders. Does not include preferred shares that have been repurchased. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details Name: us-gaap_PreferredStockSharesOutstanding Namespace Prefix: us-gaap_ Data Type: xbrli:sharesItemType Balance Type: na Period Type: instant

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- Definition The carrying amount as of the balance sheet date of capitalized preproduction costs incurred on long-term supply arrangements, including recoverable costs to design and develop products. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 340 -SubTopic 10 -Section S99 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=122040515&loc=d3e105117-122735 + Details Name: us-gaap_PreproductionCostsRelatedToLongTermSupplyArrangementsCostsCapitalized Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

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- Definition Amount of expense (reversal of expense) for expected credit loss on accounts receivable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(5)) -URI http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227 + Details Name: us-gaap_ProvisionForDoubtfulAccounts Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

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- Definition Accounts Receivable, after Allowance for Credit Loss, Maximum Recurring Transfer + References No definition available. + Details Name: wab_AccountsReceivableAfterAllowanceForCreditLossMaximumRecurringTransfer Namespace Prefix: wab_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

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- Definition Summary of significant accounting policies. + References No definition available. + Details Name: wab_SummaryOfSignificantAccountingPoliciesLineItems Namespace Prefix: wab_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

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v3.22.0.1

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Performance Obligation (Details) $ in Billions	Dec. 31, 2021 USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	$ 22
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue expected to be recognized over next 12 months	25.00%
Performance obligation, term	12 months

X

- Definition Amount of transaction price allocated to performance obligation that has not been recognized as revenue. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 13 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130556-203045 + Details Name: us-gaap_RevenueRemainingPerformanceObligation Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details Name: us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

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- Definition Period in which remaining performance obligation is expected to be recognized as revenue, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 13 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130556-203045 + Details Name: us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1 Namespace Prefix: us-gaap_ Data Type: xbrli:durationItemType Balance Type: na Period Type: instant

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v3.22.0.1

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Summary of Receivables Sold (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Accounting Policies [Abstract]
Gross receivables sold/cash proceeds received	$ 1,319	$ 852
Collections reinvested under revolving agreement	1,372	779
Net cash proceeds (remitted) received	$ (53)	$ 73

X

- References No definition available. + Details Name: us-gaap_AccountingPoliciesAbstract Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

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- Definition Proceeds from securitizations of receivables treated as collateralized borrowings, which are classified as financing transactions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3255-108585 + Details Name: us-gaap_ProceedsFromAccountsReceivableSecuritization Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

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- Definition Proceeds from (repayments of) securitizations of receivables treated as collateralized borrowings, which are classified as financing transactions. + References No definition available. + Details Name: us-gaap_ProceedsFromRepaymentsOfAccountsReceivableSecuritization Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

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v3.22.0.1

ACQUISITIONS - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions					12 Months Ended
	Mar. 31, 2021	Sep. 12, 2019	Aug. 09, 2019	Feb. 25, 2019	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	May 06, 2019	Apr. 30, 2019	Feb. 22, 2019
Business Acquisition [Line Items]
Common stock, shares outstanding (in shares)					185,800,000	188,900,000
Preferred stock, shares outstanding (in shares)					0
Stock and cash paid					$ 440	$ 41	$ 10,116
Common stock, shares issued (in shares)					226,900,000	226,900,000
Preferred stock, shares issued (in shares)					0	0
Common Stock
Business Acquisition [Line Items]
Preferred stock, shares outstanding (in shares)								3,515,500
General Electric Company
Business Acquisition [Line Items]
Stock and cash paid				$ 2,885
Common stock, shares issued (in shares)				19,018,207
Preferred stock, shares issued (in shares)				10,000
General Electric Company | General Electric Company
Business Acquisition [Line Items]
Common stock, shares issued (in shares)				46,763,975
Nordco
Business Acquisition [Line Items]
Percentage of voting interests acquired	100.00%
Business combination, consideration transferred	$ 410
GE Transportation
Business Acquisition [Line Items]
Business combination, consideration transferred				$ 10,300
Consideration transferred				2,875
Stock and cash paid				$ 470	$ 99	$ 115
Purchase price per share (in euros per share)										$ 73.36
Change in estimated fair values for assets acquired					$ 3	$ 48	$ 63
GE Transportation | General Electric Company
Business Acquisition [Line Items]
Percentage of outstanding shares transferred				9.90%
GE Transportation | GE and Pre-Merger Holders
Business Acquisition [Line Items]
Percentage of outstanding shares transferred				49.20%
GE Transportation | SpinCo Class B Preferred Stock
Business Acquisition [Line Items]
Stock and cash paid				$ 10
GE Transportation | Convertible Preferred Stock
Business Acquisition [Line Items]
Shares issuable (in shares)				10,000
GE Transportation | Convertible Preferred Stock | General Electric Company
Business Acquisition [Line Items]
Percentage of outstanding shares transferred				15.00%
GE Transportation | General Electric Company | SpinCo Common Stock
Business Acquisition [Line Items]
Common stock, shares outstanding (in shares)				8,700,000,000
GE Transportation | General Electric Company | SpinCo Class A Preferred Stock
Business Acquisition [Line Items]
Preferred stock, shares outstanding (in shares)				15,000
GE Transportation | General Electric Company | SpinCo Class B Preferred Stock
Business Acquisition [Line Items]
Preferred stock, shares outstanding (in shares)				10,000
GE Transportation | General Electric Company | SpinCo Class C Preferred Stock
Business Acquisition [Line Items]
Preferred stock, shares outstanding (in shares)				1
GE Transportation | General Electric Company | Series A Preferred Stock
Business Acquisition [Line Items]
Preferred stock, shares outstanding (in shares)								8,780
GE Transportation | General Electric Company | Common Stock
Business Acquisition [Line Items]
Preferred stock, shares outstanding (in shares)								25,300,000
Number of shares issued in transaction (in shares)		2,048,515	16,969,656
GE Transportation | Pre-merger Wabtec Stockholders
Business Acquisition [Line Items]
Percentage of outstanding shares transferred				50.80%
GE Transportation | Wabtec | SpinCo Class B Preferred Stock
Business Acquisition [Line Items]
Preferred stock, shares outstanding (in shares)				10,000
GET Brazil
Business Acquisition [Line Items]
Noncontrolling interest acquired									$ 56
General Electric Company
Business Acquisition [Line Items]
Noncontrolling interest acquired				$ 88
Other noncurrent liabilities				667
General Electric Company | Customer Contracts
Business Acquisition [Line Items]
Other noncurrent liabilities				$ 525

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- Definition Number of shares of equity interests issued or issuable to acquire entity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b)(4) -URI http://asc.fasb.org/extlink&oid=120321790&loc=d3e6927-128479 + Details Name: us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued Namespace Prefix: us-gaap_ Data Type: xbrli:sharesItemType Balance Type: na Period Type: duration

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v3.22.0.1

ACQUISITIONS - Summary of Fair Value of Nordco Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Millions	Dec. 31, 2021	Mar. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Assets acquired
Goodwill	$ 8,587		$ 8,485	$ 8,361
Nordco
Assets acquired
Cash and cash equivalents		$ 5
Accounts receivable		23
Inventories		34
Other current assets		2
Property, plant, and equipment		17
Goodwill		214
Other intangible assets		168
Other noncurrent assets		12
Total assets acquired		475
Liabilities assumed
Current liabilities		19
Noncurrent liabilities		46
Total liabilities assumed		65
Net assets acquired		$ 410

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- Definition Amount of liabilities due within one year or within the normal operating cycle, if longer, assumed at the acquisition date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123413009&loc=d3e4845-128472 + Details Name: us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilities Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

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- Definition The amount of inventory recognized as of the acquisition date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123413009&loc=d3e4845-128472 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 55 -Paragraph 37 -URI http://asc.fasb.org/extlink&oid=123455525&loc=d3e2207-128464 + Details Name: us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

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- Definition Amount of liabilities assumed at the acquisition date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123413009&loc=d3e4845-128472 + Details Name: us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

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- Definition The amount of property, plant, and equipment recognized as of the acquisition date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 55 -Paragraph 37 -URI http://asc.fasb.org/extlink&oid=123455525&loc=d3e2207-128464 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123413009&loc=d3e4845-128472 + Details Name: us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

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- Definition Amount recognized for assets, including goodwill, in excess of (less than) the aggregate liabilities assumed. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123413009&loc=d3e4845-128472 + Details Name: us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(10)(1)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=120320667&loc=SL49117168-202975 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 852 -SubTopic 10 -Section 55 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=84165509&loc=d3e56426-112766 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=99380562&loc=d3e13770-109266 + Details Name: us-gaap_Goodwill Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

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v3.22.0.1

ACQUISITIONS - Summary of Fair Value of GE Transportation Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Feb. 25, 2019
Assets acquired
Goodwill	$ 8,587	$ 8,485	$ 8,361
General Electric Company
Assets acquired
Cash and cash equivalents				$ 177
Accounts receivable				541
Inventories				1,190
Other current assets				71
Property, plant, and equipment				1,089
Goodwill				5,984
Other noncurrent assets				321
Total assets acquired				12,608
Liabilities assumed
Current liabilities				1,594
Contingent consideration				440
Other noncurrent liabilities				667
Total liabilities assumed				2,701
Net assets acquired				9,907
Noncontrolling interest				88
General Electric Company | Trade names
Assets acquired
Acquired intangible assets				55
General Electric Company | Customer relationships
Assets acquired
Acquired intangible assets				550
General Electric Company | Intellectual property
Assets acquired
Acquired intangible assets				1,180
General Electric Company | Backlog
Assets acquired
Acquired intangible assets				$ 1,450

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- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions, acquired at the acquisition date. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123413009&loc=d3e4845-128472 + Details Name: us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

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- Definition Amount due from customers or clients for goods or services, including trade receivables, that have been delivered or sold in the normal course of business, and amounts due from others, including related parties expected to be converted to cash, sold or exchanged within one year or the normal operating cycle, if longer, acquired at the acquisition date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123413009&loc=d3e4845-128472 + Details Name: us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

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- Definition Amount of liabilities due within one year or within the normal operating cycle, if longer, assumed at the acquisition date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123413009&loc=d3e4845-128472 + Details Name: us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilities Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

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- Definition The amount of identifiable intangible assets recognized as of the acquisition date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 55 -Paragraph 37 -URI http://asc.fasb.org/extlink&oid=123455525&loc=d3e2207-128464 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123413009&loc=d3e4845-128472 + Details Name: us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

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- Definition The amount of inventory recognized as of the acquisition date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123413009&loc=d3e4845-128472 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 55 -Paragraph 37 -URI http://asc.fasb.org/extlink&oid=123455525&loc=d3e2207-128464 + Details Name: us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

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- Definition Amount of liabilities assumed at the acquisition date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123413009&loc=d3e4845-128472 + Details Name: us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

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- References No definition available. + Details Name: us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilitiesAbstract Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

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- Definition Amount of other assets expected to be realized or consumed after one year or the normal operating cycle, if longer, acquired at the acquisition date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123413009&loc=d3e4845-128472 + Details Name: us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

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- Definition Amount recognized as of the acquisition date for the assets, including goodwill, in excess of (less than) the aggregate liabilities assumed, less the noncontrolling interest in the acquiree. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123413009&loc=d3e4845-128472 + Details Name: us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedLessNoncontrollingInterest Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

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v3.22.0.1

ACQUISITIONS - Pro Forma Financial Information (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Business Combination and Asset Acquisition [Abstract]
Net sales			$ 8,676
Gross profit			2,343
Net income attributable to Wabtec shareholders			$ 277
Diluted earnings per share
As Reported (in dollars per share)	$ 2.96	$ 2.17	$ 1.84
Pro forma (in dollars per share)			$ 1.45

X

- Definition The pro forma diluted net income per share for a period as if the business combination or combinations had been completed at the beginning of a period. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(3) -URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(2) -URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463 + Details Name: us-gaap_BusinessAcquisitionProFormaEarningsPerShareDiluted Namespace Prefix: us-gaap_ Data Type: dtr-types:perShareItemType Balance Type: na Period Type: duration

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- Definition The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(3) -URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(2) -URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463 + Details Name: us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

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- Definition The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(2) -URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(3) -URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463 + Details Name: us-gaap_BusinessAcquisitionsProFormaRevenue Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

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- Definition The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 55 -Paragraph 52 -URI http://asc.fasb.org/extlink&oid=125512782&loc=d3e4984-109258 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 7 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=124431687&loc=d3e22644-107794 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 55 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=125512782&loc=d3e3842-109258 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=125511455&loc=d3e1252-109256 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 11 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=124431687&loc=d3e22694-107794 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=124431687&loc=d3e22595-107794 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=124431687&loc=d3e22583-107794 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 60B -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=125511455&loc=SL5780133-109256 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 40 -Section 65 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=123482062&loc=SL123482106-238011 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(27)) -URI http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 Reference 12: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(23)) -URI http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263 Reference 13: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 11 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=124431687&loc=d3e22694-107794 Reference 14: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=125511455&loc=d3e1337-109256 Reference 15: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 40 -Section 65 -Paragraph 1 -Subparagraph (e)(4) -URI http://asc.fasb.org/extlink&oid=123482062&loc=SL123482106-238011 Reference 16: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(25)) -URI http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227 + Details Name: us-gaap_EarningsPerShareDiluted Namespace Prefix: us-gaap_ Data Type: dtr-types:perShareItemType Balance Type: na Period Type: duration

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- References No definition available. + Details Name: us-gaap_EarningsPerShareDilutedAbstract Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

X

- Definition The pro forma gross profit for a period as if the business combination or combinations had been completed at the beginning of the period. + References No definition available. + Details Name: wab_BusinessAcquisitionProFormaGrossProfit Namespace Prefix: wab_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

v3.22.0.1

SUPPLEMENTAL CASH FLOW DISCLOSURES (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Supplemental Cash Flow Elements [Abstract]
Interest paid during the year	$ 164	$ 174	$ 193
Income taxes paid during the year, net of amount refunded	123	129	100
Business acquisitions:
Fair value of assets acquired	507	70	12,613
Liabilities assumed	68	35	2,466
Non-controlling interest (acquired) assumed	(1)	(6)
Non-controlling interest (acquired) assumed			31
Stock and cash paid	440	41	10,116
Less: Cash acquired	5	1	180
Stock used for acquisition	0	0	6,940
Net cash paid	$ 435	$ 40	$ 2,996

X

- Definition Amount of equity interests of the acquirer, including instruments or interests issued or issuable in consideration for the business combination. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=116859721&loc=d3e6613-128477 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=116859721&loc=d3e6578-128477 + Details Name: us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

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- Definition The cash inflow associated with the acquisition of business during the period (for example, cash that was held by the acquired business). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3179-108585 + Details Name: us-gaap_CashAcquiredFromAcquisition Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

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- Definition The fair value of assets acquired in noncash investing or financing activities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=123431023&loc=d3e4313-108586 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=123431023&loc=d3e4332-108586 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=123431023&loc=d3e4304-108586 + Details Name: us-gaap_FairValueOfAssetsAcquired Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

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- Definition The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=123431023&loc=d3e4297-108586 + Details Name: us-gaap_IncomeTaxesPaidNet Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

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- Definition The fair value of liabilities assumed in noncash investing or financing activities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=123431023&loc=d3e4304-108586 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=123431023&loc=d3e4332-108586 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=123431023&loc=d3e4313-108586 + Details Name: us-gaap_LiabilitiesAssumed1 Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

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- Definition The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=120321790&loc=d3e6927-128479 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3213-108585 + Details Name: us-gaap_PaymentsToAcquireBusinessesGross Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

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- Definition The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3213-108585 + Details Name: us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

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- Definition Amount of cash outflow to a noncontrolling interest. Includes, but not limited to, reduction of noncontrolling interest ownership. Excludes dividends paid to the noncontrolling interest. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3291-108585 + Details Name: us-gaap_PaymentsToMinorityShareholders Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

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v3.22.0.1

INVENTORIES (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Inventory Disclosure [Abstract]
Raw materials	$ 757	$ 670
Work-in-progress	316	339
Finished goods	616	633
Total inventories	$ 1,689	$ 1,642

X

- References No definition available. + Details Name: us-gaap_InventoryDisclosureAbstract Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

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- Definition Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of merchandise or goods held by the company that are readily available for sale. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 330 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.BB) -URI http://asc.fasb.org/extlink&oid=27011343&loc=d3e100047-122729 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(6)(a)(1)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details Name: us-gaap_InventoryFinishedGoodsNetOfReserves Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

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- Definition Carrying amount, net of reserves and adjustments, as of the balance sheet date of merchandise or goods which are partially completed. This inventory is generally comprised of raw materials, labor and factory overhead costs, which require further materials, labor and overhead to be converted into finished goods, and which generally require the use of estimates to determine percentage complete and pricing. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 330 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.BB) -URI http://asc.fasb.org/extlink&oid=27011343&loc=d3e100047-122729 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(6)(a)(3)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details Name: us-gaap_InventoryWorkInProcessNetOfReserves Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

v3.22.0.1

PROPERTY, PLANT & EQUIPMENT - Major Classes of Depreciable Assets (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Property, Plant and Equipment [Abstract]
Machinery and equipment	$ 1,433	$ 1,375
Buildings and improvements	785	801
Land and improvements	96	98
Construction in progress	89	99
Property, plant and equipment	2,403	2,373
Less: accumulated depreciation	(906)	(772)
Other intangible assets, net	$ 1,497	$ 1,601

X

- Definition Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.14) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details Name: us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

X

- Definition Amount before accumulated depreciation of building structures held for productive use including addition, improvement, or renovation to the structure, including, but not limited to, interior masonry, interior flooring, electrical, and plumbing. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 4 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=124098289&loc=d3e6812-107765 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 + Details Name: us-gaap_BuildingsAndImprovementsGross Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

X

- Definition Amount of structure or a modification to a structure under construction. Includes recently completed structures or modifications to structures that have not been placed into service. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 + Details Name: us-gaap_ConstructionInProgressGross Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

X

- Definition Amount before accumulated deprecation and depletion of real estate held for productive use and additions or improvements to real estate held for productive use, examples include, but are not limited to, walkways, driveways, fences, and parking lots. Excludes land held for sale. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=124098289&loc=d3e6812-107765 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(13)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details Name: us-gaap_LandAndLandImprovements Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

X

- Definition Amount before accumulated depreciation of tangible personal property used to produce goods and services, including, but is not limited to, tools, dies and molds, computer and office equipment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 4 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=124098289&loc=d3e6812-107765 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 + Details Name: us-gaap_MachineryAndEquipmentGross Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

X

- References No definition available. + Details Name: us-gaap_PropertyPlantAndEquipmentAbstract Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

X

- Definition Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.13) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details Name: us-gaap_PropertyPlantAndEquipmentGross Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

X

- Definition Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(14)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(8)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 360 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=124429447&loc=SL124453093-239630 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(13)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 6: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 852 -SubTopic 10 -Section 55 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=84165509&loc=d3e56426-112766 + Details Name: us-gaap_PropertyPlantAndEquipmentNet Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

v3.22.0.1

PROPERTY, PLANT & EQUIPMENT - Estimated Useful Lives of Property Plant and Equipment (Details)	12 Months Ended
	Dec. 31, 2021
Land improvements | Minimum
Property Plant And Equipment [Line Items]
Estimated useful lives in years	10 years
Land improvements | Maximum
Property Plant And Equipment [Line Items]
Estimated useful lives in years	20 years
Building and improvements | Minimum
Property Plant And Equipment [Line Items]
Estimated useful lives in years	20 years
Building and improvements | Maximum
Property Plant And Equipment [Line Items]
Estimated useful lives in years	40 years
Machinery and equipment | Minimum
Property Plant And Equipment [Line Items]
Estimated useful lives in years	3 years
Machinery and equipment | Maximum
Property Plant And Equipment [Line Items]
Estimated useful lives in years	15 years

X

- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details Name: us-gaap_PropertyPlantAndEquipmentLineItems Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

X

- Definition Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. + References No definition available. + Details Name: us-gaap_PropertyPlantAndEquipmentUsefulLife Namespace Prefix: us-gaap_ Data Type: xbrli:durationItemType Balance Type: na Period Type: duration

X

- Details Name: us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_LandImprovementsMember Namespace Prefix: Data Type: na Balance Type: Period Type:

X

- Details Name: srt_RangeAxis=srt_MinimumMember Namespace Prefix: Data Type: na Balance Type: Period Type:

X

- Details Name: srt_RangeAxis=srt_MaximumMember Namespace Prefix: Data Type: na Balance Type: Period Type:

X

- Details Name: us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_BuildingAndBuildingImprovementsMember Namespace Prefix: Data Type: na Balance Type: Period Type:

X

- Details Name: us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_MachineryAndEquipmentMember Namespace Prefix: Data Type: na Balance Type: Period Type:

v3.22.0.1

PROPERTY, PLANT & EQUIPMENT - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment [Abstract]
Depreciation expense	$ 198	$ 183	$ 158

X

- Definition The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585 + Details Name: us-gaap_Depreciation Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

X

- References No definition available. + Details Name: us-gaap_PropertyPlantAndEquipmentAbstract Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

v3.22.0.1

INTANGIBLES - Narrative (Details) $ in Millions	12 Months Ended
	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Intangible Assets Disclosure [Line Items]
Trade names	$ 635	$ 651
Intangible assets, amortization expense	$ 287	$ 282	$ 238
Valuation Technique, Discounted Cash Flow
Intangible Assets Disclosure [Line Items]
Goodwill impairment test, weight of approach	0.75
Valuation, Market Approach
Intangible Assets Disclosure [Line Items]
Goodwill impairment test, weight of approach	0.25
Trade names
Intangible Assets Disclosure [Line Items]
Useful life (in years)	5 years
Backlog
Intangible Assets Disclosure [Line Items]
Intangible assets, weighted average useful life (years)	10 years
Intellectual property
Intangible Assets Disclosure [Line Items]
Intangible assets, weighted average useful life (years)	11 years
Customer relationships
Intangible Assets Disclosure [Line Items]
Intangible assets, weighted average useful life (years)	17 years
Other intangible assets
Intangible Assets Disclosure [Line Items]
Intangible assets, weighted average useful life (years)	9 years

X

- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 + Details Name: us-gaap_AmortizationOfIntangibleAssets Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

X

- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details Name: us-gaap_FiniteLivedIntangibleAssetUsefulLife Namespace Prefix: us-gaap_ Data Type: xbrli:durationItemType Balance Type: na Period Type: duration

X

- Definition Remaining amortization period of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 926 -SubTopic 20 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=120154696&loc=d3e54445-107959 + Details Name: us-gaap_FiniteLivedIntangibleAssetsRemainingAmortizationPeriod1 Namespace Prefix: us-gaap_ Data Type: xbrli:durationItemType Balance Type: na Period Type: duration

X

- Definition Carrying amount (original costs adjusted for previously recognized amortization and impairment) as of the balance sheet date for the rights acquired through registration of a trade name to gain or protect exclusive use thereof for a projected indefinite period of benefit. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details Name: us-gaap_IndefiniteLivedTradeNames Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

X

- Definition Goodwill Impairment Test, Weight of Approach + References No definition available. + Details Name: wab_GoodwillImpairmentTestWeightOfApproach Namespace Prefix: wab_ Data Type: xbrli:pureItemType Balance Type: na Period Type: duration

X

- Definition Intangible assets disclosure. + References No definition available. + Details Name: wab_IntangibleAssetsDisclosureLineItems Namespace Prefix: wab_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

X

- Details Name: us-gaap_ValuationTechniqueAxis=us-gaap_ValuationTechniqueDiscountedCashFlowMember Namespace Prefix: Data Type: na Balance Type: Period Type:

X

- Details Name: us-gaap_ValuationTechniqueAxis=us-gaap_MarketApproachValuationTechniqueMember Namespace Prefix: Data Type: na Balance Type: Period Type:

X

- Details Name: us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_TradeNamesMember Namespace Prefix: Data Type: na Balance Type: Period Type:

X

- Details Name: us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_OrderOrProductionBacklogMember Namespace Prefix: Data Type: na Balance Type: Period Type:

X

- Details Name: us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_IntellectualPropertyMember Namespace Prefix: Data Type: na Balance Type: Period Type:

X

- Details Name: us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_CustomerRelationshipsMember Namespace Prefix: Data Type: na Balance Type: Period Type:

X

- Details Name: us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_OtherIntangibleAssetsMember Namespace Prefix: Data Type: na Balance Type: Period Type:

v3.22.0.1

INTANGIBLES - Change in the Carrying Amount of Goodwill by Segment (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Goodwill [Roll Forward]
Balance beginning of period	$ 8,485	$ 8,361
Additions	229	2
Disposals		(6)
Foreign currency impact	(127)	128
Balance end of period	8,587	8,485
Freight Segment
Goodwill [Roll Forward]
Balance beginning of period	6,872	6,877
Additions	214	2
Disposals		(6)
Foreign currency impact	(13)	(1)
Balance end of period	7,073	6,872
Transit Segment
Goodwill [Roll Forward]
Balance beginning of period	1,613	1,484
Additions	15	0
Disposals		0
Foreign currency impact	(114)	129
Balance end of period	$ 1,514	$ 1,613

X

- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(10)(1)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=120320667&loc=SL49117168-202975 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 852 -SubTopic 10 -Section 55 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=84165509&loc=d3e56426-112766 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=99380562&loc=d3e13770-109266 + Details Name: us-gaap_Goodwill Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

X

- Definition Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 + Details Name: us-gaap_GoodwillAcquiredDuringPeriod Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

X

- Definition Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 + Details Name: us-gaap_GoodwillForeignCurrencyTranslationGainLoss Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

X

- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details Name: us-gaap_GoodwillRollForward Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

X

- Definition Amount of divestiture of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 + Details Name: us-gaap_GoodwillWrittenOffRelatedToSaleOfBusinessUnit Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

X

- Details Name: us-gaap_StatementBusinessSegmentsAxis=wab_FreightSegmentMember Namespace Prefix: Data Type: na Balance Type: Period Type:

X

- Details Name: us-gaap_StatementBusinessSegmentsAxis=wab_TransitSegmentMember Namespace Prefix: Data Type: na Balance Type: Period Type:

v3.22.0.1

INTANGIBLES - Intangible Assets Other Than Goodwill and Trademarks (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Finite Lived Intangible Assets [Line Items]
Intangible assets, net of accumulated amortization	$ 3,070	$ 3,218
Intellectual property, patents, and other intangibles, net of accumulated amortization of $334 and $223
Finite Lived Intangible Assets [Line Items]
Intangible assets, accumulated amortization	334	223
Intangible assets, net of accumulated amortization	977	1,008
Backlog, net of accumulated amortization of $309 and $206
Finite Lived Intangible Assets [Line Items]
Intangible assets, accumulated amortization	309	206
Intangible assets, net of accumulated amortization	1,114	1,224
Customer relationships, net of accumulated amortization of $331 and $276
Finite Lived Intangible Assets [Line Items]
Intangible assets, accumulated amortization	331	276
Intangible assets, net of accumulated amortization	$ 979	$ 986

X

- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details Name: us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

X

- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details Name: us-gaap_FiniteLivedIntangibleAssetsLineItems Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

X

- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 926 -SubTopic 20 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=120154696&loc=d3e54445-107959 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details Name: us-gaap_FiniteLivedIntangibleAssetsNet Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

X

- Details Name: us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=wab_IntellectualPropertyPatentsAndOtherMember Namespace Prefix: Data Type: na Balance Type: Period Type:

X

- Details Name: us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_OrderOrProductionBacklogMember Namespace Prefix: Data Type: na Balance Type: Period Type:

X

- Details Name: us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_CustomerRelationshipsMember Namespace Prefix: Data Type: na Balance Type: Period Type:

v3.22.0.1

INTANGIBLES - Estimated Amortization Expense Five Succeeding Years (Details) $ in Millions	Dec. 31, 2021 USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
2022	$ 291
2023	290
2024	281
2025	278
2026	$ 274

X

- Definition Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details Name: us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

X

- Definition Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details Name: us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

X

- Definition Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details Name: us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

X

- Definition Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details Name: us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

X

- Definition Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details Name: us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

X

- References No definition available. + Details Name: us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

v3.22.0.1

CONTRACT ASSETS AND CONTRACT LIABILITIES - Narrative (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Revenue from Contract with Customer [Abstract]
Noncurrent contract assets	$ 153	$ 101
Noncurrent contract liabilities	88	80
Provisions for loss contracts	$ 107	$ 109

X

- Definition Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time, classified as noncurrent. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=123360276&loc=SL49130533-203044 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130549-203045 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=123360276&loc=SL49130531-203044 + Details Name: us-gaap_ContractWithCustomerAssetNetNoncurrent Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

X

- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as noncurrent. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=123360276&loc=SL49130532-203044 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=123360276&loc=SL49130531-203044 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130549-203045 + Details Name: us-gaap_ContractWithCustomerLiabilityNoncurrent Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

X

- Definition Cumulative provision for contract losses not offset against related costs accumulated on the balance sheet. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 605 -SubTopic 35 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=123355788&loc=d3e57777-111642 + Details Name: us-gaap_ProvisionForLossOnContracts Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

X

- References No definition available. + Details Name: us-gaap_RevenueFromContractWithCustomerAbstract Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

v3.22.0.1

CONTRACT ASSETS AND CONTRACT LIABILITIES - Contract with Customer, Asset and Liability (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Contract Assets
Balance at beginning of year	$ 544	$ 623
Acquisitions	0	4
Recognized in current year	617	850
Reclassified to accounts receivable	(602)	(950)
Foreign currency impact	(14)	17
Balance at end of year	545	544
Contract Liabilities
Balance at beginning of year	832	800
Acquisitions	2	7
Recognized in current year	740	872
Amounts in beginning balance reclassified to revenue	(463)	(532)
Current year amounts reclassified to revenue	(273)	(326)
Foreign currency impact	(14)	11
Balance at end of year	$ 824	$ 832

X

- Definition Amount of increase (decrease) in right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time, from business combination. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130551-203045 + Details Name: us-gaap_ContractWithCustomerAssetIncreaseDecreaseForContractAcquiredInBusinessCombination Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

X

- Definition Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130549-203045 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=123360276&loc=SL49130531-203044 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=123360276&loc=SL49130533-203044 + Details Name: us-gaap_ContractWithCustomerAssetNet Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

X

- Definition Amount of decrease in right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time from transfer to receivable due to right to consideration becoming unconditional. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130551-203045 + Details Name: us-gaap_ContractWithCustomerAssetReclassifiedToReceivable Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

X

- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=123360276&loc=SL49130531-203044 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130549-203045 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=123360276&loc=SL49130532-203044 + Details Name: us-gaap_ContractWithCustomerLiability Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

X

- Definition Amount of increase (decrease) in obligation to transfer good or service to customer for which consideration from customer has been received or is due, from business combination. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130551-203045 + Details Name: us-gaap_ContractWithCustomerLiabilityIncreaseDecreaseForContractAcquiredInBusinessCombination Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

X

- Definition Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130549-203045 + Details Name: us-gaap_ContractWithCustomerLiabilityRevenueRecognized Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

X

- Definition Change in Contract with Customer Asset [Roll Forward] + References No definition available. + Details Name: wab_ChangeinContractwithCustomerAssetRollForward Namespace Prefix: wab_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

X

- Definition Change in Contract with Customer Liability [Roll Forward] + References No definition available. + Details Name: wab_ChangeinContractwithCustomerLiabilityRollForward Namespace Prefix: wab_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

X

- Definition Contract With Customer Asset Increase (Decrease) Foreign Currency Translation Adjustment + References No definition available. + Details Name: wab_ContractWithCustomerAssetIncreaseDecreaseForeignCurrencyTranslationAdjustment Namespace Prefix: wab_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

X

- Definition Contract With Customer Asset New Contract Additions + References No definition available. + Details Name: wab_ContractWithCustomerAssetNewContractAdditions Namespace Prefix: wab_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

X

- Definition Contract With Customer Liability New Contract Additions + References No definition available. + Details Name: wab_ContractWithCustomerLiabilityNewContractAdditions Namespace Prefix: wab_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

X

- Definition Contract with Customer Liability Increase (Decrease) Foreign Currency Translation Adjustment + References No definition available. + Details Name: wab_ContractwithCustomerLiabilityIncreaseDecreaseForeignCurrencyTranslationAdjustment Namespace Prefix: wab_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

X

- Definition Contract with Customer Liability Revenue Recognized from Current Year Additions + References No definition available. + Details Name: wab_ContractwithCustomerLiabilityRevenueRecognizedfromCurrentYearAdditions Namespace Prefix: wab_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

v3.22.0.1

LONG-TERM DEBT - Schedule of Long-term Debt (Details)		12 Months Ended
	Apr. 10, 2020	Dec. 31, 2021 USD ($)	Dec. 31, 2021 EUR (€)	Jun. 03, 2021 EUR (€)	Dec. 31, 2020 USD ($)	Jun. 29, 2020 USD ($)
Debt Instrument [Line Items]
Total		$ 4,058,000,000			$ 4,239,000,000
Current portion of long-term debt		2,000,000			447,000,000
Long-term debt		4,056,000,000			3,792,000,000
Fair Value
Debt Instrument [Line Items]
Total		4,383,000,000			4,667,000,000
Current portion of long-term debt		2,000,000			447,000,000
Long-term debt		$ 4,381,000,000			4,220,000,000
Line of Credit
Debt Instrument [Line Items]
Debt instrument, term	364 days	364 days
Other Borrowings
Debt Instrument [Line Items]
Total		$ 12,000,000			112,000,000
Other Borrowings | Fair Value
Debt Instrument [Line Items]
Total		$ 12,000,000			113,000,000
U.S. dollar-denominated Term Loans | Line of Credit | Revolving Credit Facility
Debt Instrument [Line Items]
Effective interest rate (as a percent)		0.00%	0.00%
Total		$ 0			645,000,000
U.S. dollar-denominated Term Loans | Line of Credit | Revolving Credit Facility | Fair Value
Debt Instrument [Line Items]
Total		$ 0			645,000,000
Multi-Currency Revolving loan facility | Line of Credit | Revolving Credit Facility
Debt Instrument [Line Items]
Effective interest rate (as a percent)		1.50%	1.50%
Total		$ 0			0
Multi-Currency Revolving loan facility | Line of Credit | Revolving Credit Facility | Fair Value
Debt Instrument [Line Items]
Total		$ 0			0
4.375% Senior Notes, due 2023 | Senior Notes
Debt Instrument [Line Items]
Stated interest rate (as a percent)		4.375%	4.375%
Effective interest rate (as a percent)		4.50%	4.50%
Face Value		$ 250,000,000
Total		250,000,000			249,000,000
4.375% Senior Notes, due 2023 | Senior Notes | Fair Value
Debt Instrument [Line Items]
Total		$ 260,000,000			267,000,000
4.15% Senior Notes, due 2024 | Senior Notes
Debt Instrument [Line Items]
Stated interest rate (as a percent)		4.15%	4.15%
Effective interest rate (as a percent)		4.60%	4.60%
Face Value		$ 750,000,000
Total		747,000,000			746,000,000
4.15% Senior Notes, due 2024 | Senior Notes | Fair Value
Debt Instrument [Line Items]
Total		$ 796,000,000			817,000,000
3.20% Senior Notes, due 2025 | Senior Notes
Debt Instrument [Line Items]
Stated interest rate (as a percent)		3.20%	3.20%			3.20%
Effective interest rate (as a percent)		3.40%	3.40%
Face Value		$ 500,000,000				$ 500,000,000
Total		497,000,000			496,000,000
3.20% Senior Notes, due 2025 | Senior Notes | Fair Value
Debt Instrument [Line Items]
Total		$ 523,000,000			533,000,000
3.45% Senior Notes, due 2026 | Senior Notes
Debt Instrument [Line Items]
Stated interest rate (as a percent)		3.45%	3.45%
Effective interest rate (as a percent)		3.50%	3.50%
Face Value		$ 750,000,000
Total		749,000,000			749,000,000
3.45% Senior Notes, due 2026 | Senior Notes | Fair Value
Debt Instrument [Line Items]
Total		$ 795,000,000			820,000,000
1.25% Senior Notes (EUR), due 2027 | Senior Notes
Debt Instrument [Line Items]
Stated interest rate (as a percent)		1.25%	1.25%
Effective interest rate (as a percent)		1.50%	1.50%
Face Value | €			€ 500,000,000	€ 500,000,000
Total		$ 560,000,000			0
1.25% Senior Notes (EUR), due 2027 | Senior Notes | Fair Value
Debt Instrument [Line Items]
Total		$ 574,000,000			0
4.70% Senior Notes, due 2028 | Senior Notes
Debt Instrument [Line Items]
Stated interest rate (as a percent)		4.70%	4.70%
Effective interest rate (as a percent)		5.00%	5.00%
Face Value		$ 1,250,000,000
Total		1,243,000,000			1,242,000,000
4.70% Senior Notes, due 2028 | Senior Notes | Fair Value
Debt Instrument [Line Items]
Total		$ 1,423,000,000			$ 1,472,000,000

X

- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 1B -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=124435984&loc=d3e28551-108399 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=124429444&loc=SL124452920-239629 Reference 5: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 55 -Paragraph 69C -URI http://asc.fasb.org/extlink&oid=123466577&loc=SL123495737-112612 Reference 6: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 55 -Paragraph 69B -URI http://asc.fasb.org/extlink&oid=123466577&loc=SL123495735-112612 + Details Name: us-gaap_DebtInstrumentFaceAmount Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

X

- Definition Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 6 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123466204&loc=SL6036836-161870 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=124435984&loc=d3e28551-108399 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=124429444&loc=SL124452920-239629 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details Name: us-gaap_DebtInstrumentInterestRateEffectivePercentage Namespace Prefix: us-gaap_ Data Type: dtr-types:percentItemType Balance Type: na Period Type: instant

X

- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 1B -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details Name: us-gaap_DebtInstrumentInterestRateStatedPercentage Namespace Prefix: us-gaap_ Data Type: dtr-types:percentItemType Balance Type: na Period Type: instant

X

- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details Name: us-gaap_DebtInstrumentLineItems Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

X

- Definition Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details Name: us-gaap_DebtInstrumentTerm Namespace Prefix: us-gaap_ Data Type: xbrli:durationItemType Balance Type: na Period Type: duration

X

- Definition Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b)(3) -URI http://asc.fasb.org/extlink&oid=123466204&loc=SL6031897-161870 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 55 -Paragraph 69C -URI http://asc.fasb.org/extlink&oid=123466577&loc=SL123495737-112612 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 Reference 4: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 55 -Paragraph 69B -URI http://asc.fasb.org/extlink&oid=123466577&loc=SL123495735-112612 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 1D -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123466505&loc=SL123495340-112611 Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details Name: us-gaap_LongTermDebt Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

X

- Definition Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19,20) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details Name: us-gaap_LongTermDebtCurrent Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

X

- Definition Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details Name: us-gaap_LongTermDebtNoncurrent Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

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- Details Name: us-gaap_FairValueByMeasurementBasisAxis=us-gaap_EstimateOfFairValueFairValueDisclosureMember Namespace Prefix: Data Type: na Balance Type: Period Type:

X

- Details Name: us-gaap_LongtermDebtTypeAxis=us-gaap_LineOfCreditMember Namespace Prefix: Data Type: na Balance Type: Period Type:

X

- Details Name: us-gaap_LongtermDebtTypeAxis=us-gaap_OtherDebtSecuritiesMember Namespace Prefix: Data Type: na Balance Type: Period Type:

X

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v3.22.0.1

LONG-TERM DEBT - Annual Repayment Requirements for Debt Obligations (Details) $ in Millions	Dec. 31, 2021 USD ($)
Debt Disclosure [Abstract]
2022	$ 2
2023	250
2024	762
2025	500
2026	750
Thereafter	1,817
Total	$ 4,081

X

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X

- Definition Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=123466204&loc=SL6031897-161870 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 + Details Name: us-gaap_DebtInstrumentCarryingAmount Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

X

- Definition Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=123465755&loc=d3e1835-112601 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 1E -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=123466505&loc=SL123495348-112611 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-04(a)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e24072-122690 + Details Name: us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

X

- Definition Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 1E -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=123466505&loc=SL123495348-112611 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-04(a)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e24072-122690 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=123465755&loc=d3e1835-112601 + Details Name: us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

X

- Definition Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 1E -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=123466505&loc=SL123495348-112611 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=123465755&loc=d3e1835-112601 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-04(a)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e24072-122690 + Details Name: us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

X

- Definition Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 1E -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=123466505&loc=SL123495348-112611 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=123465755&loc=d3e1835-112601 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-04(a)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e24072-122690 + Details Name: us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

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- Definition Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 1E -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=123466505&loc=SL123495348-112611 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-04(a)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e24072-122690 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=123465755&loc=d3e1835-112601 + Details Name: us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

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- Definition Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 1E -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=123466505&loc=SL123495348-112611 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-04(a)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e24072-122690 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=123465755&loc=d3e1835-112601 + Details Name: us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

v3.22.0.1

LONG-TERM DEBT - Narrative (Details)				3 Months Ended	12 Months Ended
	Jun. 03, 2021 USD ($)	Jun. 29, 2020 USD ($)	Apr. 10, 2020 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2021 EUR (€)	Jun. 03, 2021 EUR (€)	Dec. 31, 2020 USD ($)	Jun. 08, 2018 USD ($)
Debt Instrument [Line Items]
Total unamortized debt issuance costs				$ 23,000,000	$ 23,000,000			$ 21,000,000
Weighted average interest rate on variable rate debt				1.50%	1.50%	1.50%
Long-term debt				$ 4,058,000,000	$ 4,058,000,000			4,239,000,000
Letters of credit outstanding				$ 791,000,000	$ 791,000,000			737,000,000
2018 Refinancing Credit Agreement
Debt Instrument [Line Items]
Leverage ratio (at most)					3.25
2018 Refinancing Credit Agreement | Debt Instrument, Covenant, Period One
Debt Instrument [Line Items]
Leverage ratio (at most)				3.75
2018 Refinancing Credit Agreement | Debt Instrument, Covenant, Period Two
Debt Instrument [Line Items]
Leverage ratio (at most)				3.50
2018 Refinancing Credit Agreement | Revolving Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity				$ 1,200,000,000	$ 1,200,000,000
Line of Credit
Debt Instrument [Line Items]
Maximum borrowing capacity			$ 600,000,000
Debt instrument, term			364 days		364 days
Line of Credit | Revolving Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity			$ 144,000,000
Line of Credit | 2018 Refinancing Credit Agreement | Revolving Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity									$ 1,200,000,000
Letters of credit outstanding				3,000,000	$ 3,000,000
Line of Credit | 2018 Refinancing Credit Agreement | Swing Line Sub Facility
Debt Instrument [Line Items]
Maximum borrowing capacity									75,000,000
Line of Credit | 2018 Refinancing Credit Agreement | Letter of Credit
Debt Instrument [Line Items]
Maximum borrowing capacity									$ 450,000,000
Line of Credit | Term Loan
Debt Instrument [Line Items]
Long-term debt			$ 456,000,000
Senior Notes
Debt Instrument [Line Items]
Debt issuance face value (as a percent)					100.00%
Senior Notes | 4.375% Senior Notes, due 2023
Debt Instrument [Line Items]
Long-term debt				$ 250,000,000	$ 250,000,000			249,000,000
Stated interest rate (as a percent)				4.375%	4.375%	4.375%
Face Value				$ 250,000,000	$ 250,000,000
Senior Notes | 4.15% Senior Notes, due 2024
Debt Instrument [Line Items]
Long-term debt				$ 747,000,000	$ 747,000,000			746,000,000
Stated interest rate (as a percent)				4.15%	4.15%	4.15%
Face Value				$ 750,000,000	$ 750,000,000
Senior Notes | 3.20% Senior Notes, due 2025
Debt Instrument [Line Items]
Long-term debt				$ 497,000,000	$ 497,000,000			496,000,000
Stated interest rate (as a percent)		3.20%		3.20%	3.20%	3.20%
Debt issuance face value (as a percent)		99.892%
Face Value		$ 500,000,000		$ 500,000,000	$ 500,000,000
Debt issuance costs, gross		$ 2,000,000
Senior Notes | 3.45% Senior Notes, due 2026
Debt Instrument [Line Items]
Long-term debt				$ 749,000,000	$ 749,000,000			749,000,000
Stated interest rate (as a percent)				3.45%	3.45%	3.45%
Face Value				$ 750,000,000	$ 750,000,000
Senior Notes | 1.25% Senior Notes (EUR), due 2027
Debt Instrument [Line Items]
Long-term debt				$ 560,000,000	$ 560,000,000			0
Stated interest rate (as a percent)				1.25%	1.25%	1.25%
Debt issuance face value (as a percent)	99.267%
Face Value | €						€ 500,000,000	€ 500,000,000
Debt issuance costs, gross	$ 4,000,000
Proceeds from issuance of debt	$ 599,000,000
Senior Notes | 4.70% Senior Notes, due 2028
Debt Instrument [Line Items]
Long-term debt				$ 1,243,000,000	$ 1,243,000,000			$ 1,242,000,000
Stated interest rate (as a percent)				4.70%	4.70%	4.70%
Face Value				$ 1,250,000,000	$ 1,250,000,000

X

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X

- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 1B -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details Name: us-gaap_DebtInstrumentInterestRateStatedPercentage Namespace Prefix: us-gaap_ Data Type: dtr-types:percentItemType Balance Type: na Period Type: instant

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details Name: us-gaap_DebtInstrumentLineItems Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

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- Definition Percentage price of original principal amount of debt at which debt can be redeemed by the issuer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -Subparagraph e -URI http://asc.fasb.org/extlink&oid=123599511&loc=d3e64711-112823 + Details Name: us-gaap_DebtInstrumentRedemptionPricePercentage Namespace Prefix: us-gaap_ Data Type: dtr-types:percentItemType Balance Type: na Period Type: duration

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- Definition Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details Name: us-gaap_DebtInstrumentTerm Namespace Prefix: us-gaap_ Data Type: xbrli:durationItemType Balance Type: na Period Type: duration

X

- Definition Amount, before accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=124435984&loc=d3e28555-108399 + Details Name: us-gaap_DeferredFinanceCostsGross Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

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- Definition Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.17) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 1D -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123466505&loc=SL123495340-112611 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=124435984&loc=d3e28555-108399 + Details Name: us-gaap_DeferredFinanceCostsNet Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

X

- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. + References No definition available. + Details Name: us-gaap_LettersOfCreditOutstandingAmount Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

X

- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details Name: us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

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- Definition Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b)(3) -URI http://asc.fasb.org/extlink&oid=123466204&loc=SL6031897-161870 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 55 -Paragraph 69C -URI http://asc.fasb.org/extlink&oid=123466577&loc=SL123495737-112612 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 Reference 4: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 55 -Paragraph 69B -URI http://asc.fasb.org/extlink&oid=123466577&loc=SL123495735-112612 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 1D -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123466505&loc=SL123495340-112611 Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details Name: us-gaap_LongTermDebt Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

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- Definition Weighted average interest rate of long-term debt outstanding calculated at point in time. + References No definition available. + Details Name: us-gaap_LongtermDebtWeightedAverageInterestRate Namespace Prefix: us-gaap_ Data Type: dtr-types:percentItemType Balance Type: na Period Type: instant

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- Details Name: us-gaap_CreditFacilityAxis=wab_SwingLineSubFacilityMember Namespace Prefix: Data Type: na Balance Type: Period Type:

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v3.22.0.1

LONG-TERM DEBT - Interest Coverage Ratio & Leverage Ratio (Details) - 2018 Refinancing Credit Agreement	12 Months Ended
	Dec. 31, 2021
Debt Instrument [Line Items]
Interest Coverage Ratio	3.0
Leverage Ratio	3.25

X

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v3.22.0.1

LONG-TERM DEBT - Schedule of Line of Credit Facilities (Details) - USD ($)	Dec. 31, 2021	Dec. 31, 2020	Apr. 10, 2020	Jun. 08, 2018
Debt Instrument [Line Items]
Letters of Credit Under Credit Agreement	$ (791,000,000)	$ (737,000,000)
Revolving Credit Facility | 2018 Refinancing Credit Agreement
Debt Instrument [Line Items]
Maximum Availability	1,200,000,000
Current Availability	1,197,000,000
Line of Credit
Debt Instrument [Line Items]
Maximum Availability			$ 600,000,000
Line of Credit | Revolving Credit Facility
Debt Instrument [Line Items]
Maximum Availability			$ 144,000,000
Line of Credit | Revolving Credit Facility | 2018 Refinancing Credit Agreement
Debt Instrument [Line Items]
Maximum Availability				$ 1,200,000,000
Letters of Credit Under Credit Agreement	$ (3,000,000)

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v3.22.0.1

EMPLOYEE BENEFIT PLANS - Obligations and Funded Status (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Change in plan assets
Fair value of plan assets at beginning of year	$ 341
Fair value of plan assets at end of year	347	$ 341
Fair value of plan assets	347	341
Amounts recognized in the statement of financial position consist of:
Noncurrent liabilities	(77)	(114)
U.S. | Defined Benefit Pension Plans
Change in projected benefit obligation
Obligation at beginning of year	(43)	(41)
Service cost	0	0	$ 0
Interest cost	(1)	(1)	(2)
Employee contributions	0	0
Plan settlements and amendments	0	0
Benefits paid	3	3
Actuarial gain (loss)	2	(4)
Effect of currency rate changes	0	0
Obligation at end of year	(39)	(43)	(41)
Change in plan assets
Fair value of plan assets at beginning of year	36	34
Actual return on plan assets	2	4
Employer contributions	5	1
Employee contributions	0	0
Benefits paid	(3)	(3)
Settlements and other	0	0
Effect of currency rate changes	0	0
Fair value of plan assets at end of year	40	36	34
Fair value of plan assets	40	36	34
Benefit obligations	(39)	(43)	(41)
Funded status	1	(7)
Amounts recognized in the statement of financial position consist of:
Noncurrent assets	1	0
Current liabilities	0	0
Noncurrent liabilities	0	(7)
Net amount recognized	1	(7)
Amounts recognized in Accumulated other comprehensive loss, before tax consist of:
Prior service cost	0	0
Net actuarial loss	(16)	(19)
Net amount recognized	(16)	(19)
International | Defined Benefit Pension Plans
Change in projected benefit obligation
Obligation at beginning of year	(385)	(347)
Service cost	(4)	(4)	(3)
Interest cost	(4)	(6)	(7)
Employee contributions	(1)	0
Plan settlements and amendments	1	(2)
Benefits paid	13	14
Actuarial gain (loss)	15	(22)
Effect of currency rate changes	9	(18)
Obligation at end of year	(356)	(385)	(347)
Change in plan assets
Fair value of plan assets at beginning of year	305	270
Actual return on plan assets	11	25
Employer contributions	11	10
Employee contributions	1	1
Benefits paid	(13)	(14)
Settlements and other	(3)	2
Effect of currency rate changes	(5)	11
Fair value of plan assets at end of year	307	305	270
Fair value of plan assets	307	305	270
Benefit obligations	(356)	(385)	$ (347)
Funded status	(49)	(80)
Amounts recognized in the statement of financial position consist of:
Noncurrent assets	17	14
Current liabilities	(2)	(3)
Noncurrent liabilities	(64)	(91)
Net amount recognized	(49)	(80)
Amounts recognized in Accumulated other comprehensive loss, before tax consist of:
Prior service cost	(1)	(1)
Net actuarial loss	(70)	(90)
Net amount recognized	$ (71)	$ (91)

X

- Definition Amount, before tax, of accumulated other comprehensive (income) loss for defined benefit plan, that has not been recognized in net periodic benefit cost (credit). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (i-k) -URI http://asc.fasb.org/extlink&oid=124509347&loc=SL7669646-108580 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=124509347&loc=SL7669686-108580 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (j) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details Name: us-gaap_DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

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- Definition Amount, before tax, of accumulated other comprehensive income (loss) for gain (loss) of defined benefit plan, that has not been recognized in net periodic benefit (cost) credit. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (j) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=124509347&loc=SL7669686-108580 + Details Name: us-gaap_DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

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- Definition Amount, before tax, of accumulated other comprehensive (income) loss for cost (credit) of benefit change attributable to participants' prior service from plan amendment or plan initiation of defined benefit plan, that has not been recognized in net periodic benefit cost (credit). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (j) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=124509347&loc=SL7669686-108580 + Details Name: us-gaap_DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

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- Definition Amount of gain (loss) from change in actuarial assumptions which (increases) decreases benefit obligation of defined benefit plan. Assumptions include, but are not limited to, interest, mortality, employee turnover, salary, and temporary deviation from substantive plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a)(4) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details Name: us-gaap_DefinedBenefitPlanActuarialGainLoss Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

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- Definition Amount of actuarial present value of benefits attributed to service rendered by employee for defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details Name: us-gaap_DefinedBenefitPlanBenefitObligation Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

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- Definition Amount of payment to participant of defined benefit plan which decreases benefit obligation. For pension plan, payment includes, but is not limited to, pension benefits and death benefits. For other postretirement plan, payment includes, but is not limited to, prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a)(6) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 60 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6414203&loc=d3e39716-114964 + Details Name: us-gaap_DefinedBenefitPlanBenefitObligationBenefitsPaid Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

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- Definition Amount of contributions received by defined benefit plan from participant which increase benefit obligation. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details Name: us-gaap_DefinedBenefitPlanBenefitObligationContributionsByPlanParticipant Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details Name: us-gaap_DefinedBenefitPlanChangeInBenefitObligationRollForward Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

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- Definition Amount of funded (unfunded) status of defined benefit plan, measured as difference between fair value of plan assets and benefit obligation. Includes, but is not limited to, overfunded (underfunded) status. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=123453770&loc=d3e1703-114919 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=123450688&loc=d3e4179-114921 + Details Name: us-gaap_DefinedBenefitPlanFundedStatusOfPlan Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

X

- Definition Amount of cost recognized for passage of time related to defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h)(2) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 45 -Paragraph 3A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123453770&loc=SL108413299-114919 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=123450688&loc=d3e4179-114921 Reference 4: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=123450688&loc=d3e4587-114921 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 6 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e2709-114920 + Details Name: us-gaap_DefinedBenefitPlanInterestCost Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

X

- Definition Amount of payment to participant under defined benefit plan which decreases plan assets. For pension plan, payment includes, but is not limited to, pension benefits and death benefits. For other postretirement plan, payment includes, but is not limited to, prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b)(5) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 60 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6414203&loc=d3e39716-114964 + Details Name: us-gaap_DefinedBenefitPlanPlanAssetsBenefitsPaid Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

X

- Definition Amount of contributions received by defined benefit plan from participant which increases plan assets. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b)(4) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details Name: us-gaap_DefinedBenefitPlanPlanAssetsContributionsByPlanParticipant Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

X

- Definition Amount of foreign currency translation gain (loss) which increases (decreases) plan assets of defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details Name: us-gaap_DefinedBenefitPlanPlanAssetsForeignCurrencyTranslationGainLoss Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

X

- Definition Amount of cost for actuarial present value of benefits attributed to service rendered by employee for defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=123450688&loc=d3e4179-114921 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 6 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e2709-114920 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 5: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=123450688&loc=d3e4587-114921 + Details Name: us-gaap_DefinedBenefitPlanServiceCost Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

X

- Definition Amount of liability, recognized in statement of financial position, for defined benefit pension and other postretirement plans, classified as current. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=123453770&loc=d3e1731-114919 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=123450688&loc=d3e4179-114921 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(20)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=123453770&loc=d3e1703-114919 + Details Name: us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

X

- Definition Amount of liability, recognized in statement of financial position, for defined benefit pension and other postretirement plans, classified as noncurrent. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=123453770&loc=d3e1703-114919 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=123453770&loc=d3e1731-114919 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 4: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=123450688&loc=d3e4179-114921 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(24)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details Name: us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

X

- Definition Defined benefit plan curtailments and amendments. + References No definition available. + Details Name: wab_DefinedBenefitPlanCurtailmentsAndAmendments Namespace Prefix: wab_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

X

- Definition Defined Benefit Plan, Plan Assets, Payment For Settlement And Other + References No definition available. + Details Name: wab_DefinedBenefitPlanPlanAssetsPaymentForSettlementAndOther Namespace Prefix: wab_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

X

- Details Name: us-gaap_RetirementPlanSponsorLocationAxis=country_US Namespace Prefix: Data Type: na Balance Type: Period Type:

X

- Details Name: us-gaap_RetirementPlanTypeAxis=us-gaap_PensionPlansDefinedBenefitMember Namespace Prefix: Data Type: na Balance Type: Period Type:

X

- Details Name: us-gaap_RetirementPlanSponsorLocationAxis=us-gaap_ForeignPlanMember Namespace Prefix: Data Type: na Balance Type: Period Type:

v3.22.0.1

EMPLOYEE BENEFIT PLANS - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Defined Benefit Plans And Other Postretirement Benefit Plans [Line Items]
Costs recognized under defined contribution plans	$ 55	$ 55	$ 55
Number of shares held on behalf of participants (in shares)	387,000	409,000
Market value of the shares held on behalf of participants	$ 36	$ 30
U.S. | Defined Benefit Pension Plans
Defined Benefit Plans And Other Postretirement Benefit Plans [Line Items]
Aggregate accumulated benefit obligation	$ 38	42
U.S. | Defined Benefit Pension Plans | Equity security funds
Defined Benefit Plans And Other Postretirement Benefit Plans [Line Items]
Target asset allocation (as a percent)	75.00%
U.S. | Defined Benefit Pension Plans | Debt security funds
Defined Benefit Plans And Other Postretirement Benefit Plans [Line Items]
Target asset allocation (as a percent)	25.00%
International | Defined Benefit Pension Plans
Defined Benefit Plans And Other Postretirement Benefit Plans [Line Items]
Aggregate accumulated benefit obligation	$ 345	$ 372
Contribution to the plan	$ 3
International | Defined Benefit Pension Plans | Equity security funds
Defined Benefit Plans And Other Postretirement Benefit Plans [Line Items]
Target asset allocation (as a percent)	10.00%
International | Defined Benefit Pension Plans | Debt security funds
Defined Benefit Plans And Other Postretirement Benefit Plans [Line Items]
Target asset allocation (as a percent)	22.00%
International | Defined Benefit Pension Plans | Other Investments
Defined Benefit Plans And Other Postretirement Benefit Plans [Line Items]
Target asset allocation (as a percent)	68.00%

X

- Definition Amount of actuarial present value of benefits attributed to employee service rendered, excluding assumptions about future compensation level. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details Name: us-gaap_DefinedBenefitPlanAccumulatedBenefitObligation Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

X

- Definition Amount of contribution expected to be received by defined benefit plan from employer in next fiscal year following current fiscal year. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=123450688&loc=d3e4587-114921 + Details Name: us-gaap_DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

X

- Definition Percentage of target investment allocation to total plan assets. Includes, but is not limited to, percentage on weighted-average basis if more than one plan. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=123450688&loc=d3e4179-114921 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(i) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details Name: us-gaap_DefinedBenefitPlanPlanAssetsTargetAllocationPercentage Namespace Prefix: us-gaap_ Data Type: dtr-types:percentItemType Balance Type: na Period Type: instant

X

- Definition Amount of cost for defined contribution plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 70 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942 + Details Name: us-gaap_DefinedContributionPlanCostRecognized Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

X

- Definition Defined Benefit Plans And Other Postretirement Benefit Plans [ Line Items ] + References No definition available. + Details Name: wab_DefinedBenefitPlansAndOtherPostretirementBenefitPlansLineItems Namespace Prefix: wab_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

X

- Definition Defined Contribution Plan, Market value of the shares held on behalf of participants + References No definition available. + Details Name: wab_DefinedContributionPlanMarketValueOfSharesHeldOnBehalfOfParticipants Namespace Prefix: wab_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

X

- Definition Defined Contribution Plan, Number of shares held on behalf of participants. + References No definition available. + Details Name: wab_DefinedContributionPlanNumberOfSharesHeldOnBehalfOfParticipants Namespace Prefix: wab_ Data Type: xbrli:sharesItemType Balance Type: na Period Type: duration

X

- Details Name: us-gaap_RetirementPlanSponsorLocationAxis=country_US Namespace Prefix: Data Type: na Balance Type: Period Type:

X

- Details Name: us-gaap_RetirementPlanTypeAxis=us-gaap_PensionPlansDefinedBenefitMember Namespace Prefix: Data Type: na Balance Type: Period Type:

X

- Details Name: us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=us-gaap_DefinedBenefitPlanEquitySecuritiesMember Namespace Prefix: Data Type: na Balance Type: Period Type:

X

- Details Name: us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=us-gaap_DefinedBenefitPlanDebtSecurityMember Namespace Prefix: Data Type: na Balance Type: Period Type:

X

- Details Name: us-gaap_RetirementPlanSponsorLocationAxis=us-gaap_ForeignPlanMember Namespace Prefix: Data Type: na Balance Type: Period Type:

X

- Details Name: us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=us-gaap_OtherInvestmentsMember Namespace Prefix: Data Type: na Balance Type: Period Type:

v3.22.0.1

EMPLOYEE BENEFIT PLANS - Schedule of U.S. and International Pension Plans with Accumulated Benefit Obligations and with Projected Benefit Obligations in Excess of Plan Assets (Details) - Defined Benefit Pension Plans - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
U.S.
Information for pension plans with accumulated benefit obligations in excess of Plan assets:
Projected benefit obligation		$ (43)
Accumulated benefit obligation		(42)
Fair value of plan assets		36
Information for pension plans with projected benefit obligations in excess of plan assets:
Projected benefit obligation		(43)
Accumulated benefit obligation		(42)
Fair value of plan assets		36
International
Information for pension plans with accumulated benefit obligations in excess of Plan assets:
Projected benefit obligation	$ (107)	(316)
Accumulated benefit obligation	(97)	(304)
Fair value of plan assets	41	222
Information for pension plans with projected benefit obligations in excess of plan assets:
Projected benefit obligation	(112)	(317)
Accumulated benefit obligation	(101)	(305)
Fair value of plan assets	$ 45	$ 224

X

- Definition Amount of accumulated benefit obligation for defined benefit pension plan with projected benefit obligation in excess of plan assets. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e2417-114920 + Details Name: us-gaap_DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsAccumulatedBenefitObligation Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

X

- Definition Amount of plan asset for defined benefit pension plan with projected benefit obligation in excess of plan assets. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e2417-114920 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=123450688&loc=d3e4179-114921 + Details Name: us-gaap_DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsPlanAssets Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

X

- Definition Amount of projected benefit obligation for defined benefit pension plan with projected benefit obligation in excess of plan assets. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e2417-114920 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=123450688&loc=d3e4179-114921 + Details Name: us-gaap_DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsProjectedBenefitObligation Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

X

- References No definition available. + Details Name: us-gaap_DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAbstract Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

X

- Definition Amount of accumulated benefit obligation for defined benefit plan with accumulated benefit obligation in excess of plan assets. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e2417-114920 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=123450688&loc=d3e4179-114921 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e2417-114920 + Details Name: us-gaap_DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

X

- Definition Amount of plan asset for defined benefit plan with accumulated benefit obligation in excess of plan assets. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e2417-114920 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=123450688&loc=d3e4179-114921 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e2417-114920 + Details Name: us-gaap_DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

X

- Definition Amount of projected benefit obligation for defined benefit pension plan with accumulated benefit obligation in excess of plan assets. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e2417-114920 + Details Name: us-gaap_DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

X

- References No definition available. + Details Name: us-gaap_DefinedBenefitPlanPlansWithBenefitObligationsInExcessOfPlanAssetsAbstract Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

X

- Details Name: us-gaap_RetirementPlanSponsorLocationAxis=country_US Namespace Prefix: Data Type: na Balance Type: Period Type:

X

- Details Name: us-gaap_RetirementPlanTypeAxis=us-gaap_PensionPlansDefinedBenefitMember Namespace Prefix: Data Type: na Balance Type: Period Type:

X

- Details Name: us-gaap_RetirementPlanSponsorLocationAxis=us-gaap_ForeignPlanMember Namespace Prefix: Data Type: na Balance Type: Period Type:

v3.22.0.1

EMPLOYEE BENEFIT PLANS - Components of Net Periodic Benefit Costs (Details) - Defined Benefit Pension Plans - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
U.S.
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 0	$ 0	$ 0
Interest cost	1	1	2
Expected return on plan assets	(1)	(1)	(2)
Amortization of net loss	1	1	1
Settlement and curtailment losses recognized	0	0	0
Net periodic benefit cost	1	1	1
International
Defined Benefit Plan Disclosure [Line Items]
Service cost	4	4	3
Interest cost	4	6	7
Expected return on plan assets	(13)	(12)	(12)
Amortization of net loss	4	3	3
Settlement and curtailment losses recognized	1	0	0
Net periodic benefit cost	$ 0	$ 1	$ 1

X

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X

- Definition Amount of expected return (loss) recognized in net periodic benefit (cost) credit, calculated based on expected long-term rate of return and market-related value of plan assets of defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=123450688&loc=d3e4179-114921 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=123450688&loc=d3e4587-114921 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h)(3) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 45 -Paragraph 3A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123453770&loc=SL108413299-114919 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 6 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e2709-114920 + Details Name: us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

X

- Definition Amount of cost recognized for passage of time related to defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h)(2) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 45 -Paragraph 3A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123453770&loc=SL108413299-114919 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=123450688&loc=d3e4179-114921 Reference 4: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=123450688&loc=d3e4587-114921 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 6 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e2709-114920 + Details Name: us-gaap_DefinedBenefitPlanInterestCost Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

X

- Definition Amount of net periodic benefit cost (credit) for defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 6 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e2709-114920 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=123450688&loc=d3e4179-114921 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=123450688&loc=d3e4587-114921 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details Name: us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

X

- Definition Amount of gain (loss) recognized in net periodic benefit (cost) credit from settlement and curtailment. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 6 -Subparagraph (a)(7) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e2709-114920 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h)(7) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 45 -Paragraph 3A -URI http://asc.fasb.org/extlink&oid=123453770&loc=SL108413299-114919 + Details Name: us-gaap_DefinedBenefitPlanRecognizedNetGainLossDueToSettlementsAndCurtailments1 Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

X

- Definition Amount of cost for actuarial present value of benefits attributed to service rendered by employee for defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=123450688&loc=d3e4179-114921 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 6 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e2709-114920 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 5: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=123450688&loc=d3e4587-114921 + Details Name: us-gaap_DefinedBenefitPlanServiceCost Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

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v3.22.0.1

EMPLOYEE BENEFIT PLANS - Other Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income (Details) - Defined Benefit Pension Plans $ in Millions	12 Months Ended
	Dec. 31, 2021 USD ($)
U.S.
Defined Benefit Plan Disclosure [Line Items]
Net gain arising during the year	$ 2
Effect of exchange rates and other	0
Total benefit recognized in Other comprehensive income	2
Total benefit recognized in Net periodic benefit cost and Other comprehensive income	1
International
Defined Benefit Plan Disclosure [Line Items]
Net gain arising during the year	13
Effect of exchange rates and other	2
Total benefit recognized in Other comprehensive income	15
Total benefit recognized in Net periodic benefit cost and Other comprehensive income	$ 15

X

- Definition Amount, before tax, after reclassification adjustment, of increase (decrease) in accumulated other comprehensive income from gain (loss) of defined benefit plan. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=124509347&loc=d3e637-108580 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=124509347&loc=SL7669646-108580 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details Name: us-gaap_DefinedBenefitPlanAmountsRecognizedInOtherComprehensiveIncomeLossNetGainLossBeforeTax Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

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- Definition Amount, after tax and reclassification adjustment, of (increase) decrease in accumulated other comprehensive income for defined benefit plan, attributable to parent. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=124509347&loc=d3e637-108580 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 19 -URI http://asc.fasb.org/extlink&oid=123454820&loc=SL4569616-111683 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (i-k) -URI http://asc.fasb.org/extlink&oid=124509347&loc=SL7669646-108580 + Details Name: us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

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X

- Definition The effect of exchange rates on other comprehensive income related to defined benefit plans. + References No definition available. + Details Name: wab_OtherComprehensiveIncomeDefinedBenefitPlansEffectOfExchangeRates Namespace Prefix: wab_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

X

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v3.22.0.1

EMPLOYEE BENEFIT PLANS - Weighted Average Assumptions Used to Develop Actuarial Present Value of Projected Benefit Obligation (Details) - Defined Benefit Pension Plans	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
U.S.
Defined Benefit Plan Disclosure [Line Items]
Discount rate (as a percent)	2.87%	2.47%	3.27%
Expected return on plan assets (as a percent)	5.00%	5.35%	5.35%
Rate of compensation increase (as a percent)	3.00%	3.00%	3.00%
International
Defined Benefit Plan Disclosure [Line Items]
Discount rate (as a percent)	1.97%	1.39%	1.84%
Expected return on plan assets (as a percent)	4.27%	4.43%	5.01%
Rate of compensation increase (as a percent)	2.70%	2.65%	2.64%

X

- Definition Weighted average rate for present value of future retirement benefits cash flows, used to determine net periodic benefit cost of defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (k)(1) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details Name: us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate Namespace Prefix: us-gaap_ Data Type: dtr-types:percentItemType Balance Type: na Period Type: duration

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- Definition Weighted average rate of return on plan assets, reflecting average rate of earnings expected on existing plan assets and expected contributions, used to determine net periodic benefit cost of defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (k)(3) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e2919-114920 + Details Name: us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets Namespace Prefix: us-gaap_ Data Type: dtr-types:percentItemType Balance Type: na Period Type: duration

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- Definition Weighted average rate of compensation increase used to determine net periodic benefit cost of defined benefit plan. Plan includes, but is not limited to, pay-related defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (k)(2) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details Name: us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostRateOfCompensationIncrease Namespace Prefix: us-gaap_ Data Type: dtr-types:percentItemType Balance Type: na Period Type: duration

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v3.22.0.1

EMPLOYEE BENEFIT PLANS - Pension Plan Assets by Asset Category (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 347	$ 341
U.S. | Defined Benefit Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	40	36	$ 34
U.S. | Defined Benefit Pension Plans | Equity security funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	10	19
U.S. | Defined Benefit Pension Plans | Debt security funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	27	16
U.S. | Defined Benefit Pension Plans | Insurance Contracts
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
U.S. | Defined Benefit Pension Plans | Cash and cash equivalents and other
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	3	1
International | Insurance Contracts
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	15	15
International | Defined Benefit Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	307	305	$ 270
International | Defined Benefit Pension Plans | Equity security funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	87	75
International | Defined Benefit Pension Plans | Debt security funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	194	198
International | Defined Benefit Pension Plans | Insurance Contracts
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	15	15
International | Defined Benefit Pension Plans | Cash and cash equivalents and other
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 11	$ 17

X

- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details Name: us-gaap_DefinedBenefitPlanDisclosureLineItems Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

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X

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X

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v3.22.0.1

EMPLOYEE BENEFIT PLANS - Schedule of Pension Plan Assets Measured at Fair Value (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 347	$ 341
NAV
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	7	6
Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	58	60
Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	272	265
Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	10	10
Equity | U.S.
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	10	19
Equity | NAV | U.S.
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Equity | Level 1 | U.S.
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	10	19
Equity | Level 2 | U.S.
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Equity | Level 3 | U.S.
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Debt Securities | U.S.
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	27	16
Debt Securities | NAV | U.S.
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Debt Securities | Level 1 | U.S.
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	15	6
Debt Securities | Level 2 | U.S.
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	12	10
Debt Securities | Level 3 | U.S.
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Cash and cash equivalents | U.S.
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	3	1
Cash and cash equivalents | NAV | U.S.
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Cash and cash equivalents | Level 1 | U.S.
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	3	1
Cash and cash equivalents | Level 2 | U.S.
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Cash and cash equivalents | Level 3 | U.S.
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Equity | International
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	87	75
Equity | NAV | International
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	7	6
Equity | Level 1 | International
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	20	22
Equity | Level 2 | International
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	60	47
Equity | Level 3 | International
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Debt Securities | International
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	194	198
Debt Securities | NAV | International
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Debt Securities | Level 1 | International
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	4	3
Debt Securities | Level 2 | International
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	190	195
Debt Securities | Level 3 | International
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Insurance Contracts | International
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	15	15
Insurance Contracts | NAV | International
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Insurance Contracts | Level 1 | International
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Insurance Contracts | Level 2 | International
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	5	5
Insurance Contracts | Level 3 | International
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	10	10
Cash and cash equivalents and other | International
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	11	17
Cash and cash equivalents and other | NAV | International
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Cash and cash equivalents and other | Level 1 | International
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	6	9
Cash and cash equivalents and other | Level 2 | International
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	5	8
Cash and cash equivalents and other | Level 3 | International
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 0	$ 0

X

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v3.22.0.1

EMPLOYEE BENEFIT PLANS - Benefit Payments Expected to be Paid to Plan Participants (Details) - Defined Benefit Pension Plans $ in Millions	Dec. 31, 2021 USD ($)
U.S.
Defined Benefit Plan Disclosure [Line Items]
2022	$ 3
2023	3
2024	3
2025	3
2026	3
2027 through 2031	12
International
Defined Benefit Plan Disclosure [Line Items]
2022	14
2023	15
2024	15
2025	16
2026	16
2027 through 2031	$ 90

X

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- Definition Amount of benefit for defined benefit plan expected to be paid in five fiscal years after fifth fiscal year following current fiscal year. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details Name: us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

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v3.22.0.1

INCOME TAXES - Components of Income from Operations before Provision for Income Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Domestic	$ 253	$ 78	$ 118
Foreign	484	479	329
Income before income taxes	$ 737	$ 557	$ 447

X

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v3.22.0.1

INCOME TAXES - Consolidated Provision for Income Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Current tax expense (benefit)
Federal	$ (81)	$ 6	$ 5
State	27	17	1
Foreign	138	93	141
Current taxes	84	116	147
Deferred tax expense (benefit)
Federal	87	36	20
State	10	(2)	3
Foreign	(9)	(5)	(50)
Deferred taxes	88	29	(27)
Total provision	$ 172	$ 145	$ 120

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v3.22.0.1

INCOME TAXES - Reconciliation of Income Tax Rate (Details)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
U.S. federal statutory rate	21.00%	21.00%	21.00%
State taxes	0.30%	2.60%	0.80%
Foreign	3.30%	4.40%	(0.40%)
Research and development credit	(0.80%)	(1.30%)	(1.70%)
U.S. net operating loss carryback	(3.40%)	0.00%	0.00%
Changes in valuation allowance	3.00%	(2.00%)	3.50%
U.S. tax reform provision	0.70%	1.30%	2.00%
Transaction costs related to acquisitions	0.10%	0.00%	1.00%
Other, net	(1.00%)	0.00%	0.70%
Effective rate	23.20%	26.00%	26.90%

X

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v3.22.0.1

INCOME TAXES - Components of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Deferred income tax assets:
Accrued expenses and reserves	$ 44	$ 39
Warranty reserve	53	51
Deferred compensation/employee benefits	62	43
Right-of-use asset	76	70
Pension and postretirement obligations	24	26
Property, plant & equipment	0	48
Inventory	46	45
Net operating loss carry forwards	102	83
Other	102	46
Gross deferred income tax assets	509	451
Less: Valuation allowance	(64)	(42)
Total deferred income tax assets	445	409
Deferred income tax liabilities:
Property, plant & equipment	85	0
Right-of-use liability	78	69
Intangibles	503	444
Total deferred income tax liabilities	666	513
Total deferred income tax liabilities	$ 221	$ 104

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X

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- Definition Amount of deferred tax liability attributable to taxable temporary differences from property, plant, and equipment. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32621-109319 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32632-109319 + Details Name: us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

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- Definition Pension and post-retirement obligation component of Deferred income tax asset. + References No definition available. + Details Name: wab_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensionAndPostretirementBenefits Namespace Prefix: wab_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

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v3.22.0.1

INCOME TAXES - Narrative (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Valuation allowance	$ 64	$ 42
Unrecognized tax benefits	32	16	$ 17	$ 9
Unrecognized tax benefits if recognized that would affect effective tax rate	18	15
Accrued interest	5	$ 5
Unrecognized tax benefits subject to change within the next 12 months	5
Operating Loss Carryforwards [Line Items]
Net operating loss carry-forwards	311
Indefinite
Operating Loss Carryforwards [Line Items]
Net operating loss carry-forwards	192
Within Ten Years
Operating Loss Carryforwards [Line Items]
Net operating loss carry-forwards	66
Between December 31, 2032 To December 31, 2041
Operating Loss Carryforwards [Line Items]
Net operating loss carry-forwards	$ 53

X

- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32537-109319 + Details Name: us-gaap_DeferredTaxAssetsValuationAllowance Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

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v3.22.0.1

INCOME TAXES - Liability for Income Taxes Associated with Uncertain Tax Positions (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Gross liability for unrecognized tax benefits at beginning of year	$ 16	$ 17	$ 9
Gross increases - unrecognized tax benefits in prior periods	19	4	10
Gross decreases - audit settlement during year	(1)	(5)	0
Gross decreases - expiration of audit statute of limitations	(2)	0	(2)
Gross liability for unrecognized tax benefits at end of year	$ 32	$ 16	$ 17

X

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v3.22.0.1

EARNINGS PER SHARE - Computation of Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Numerator
Net income attributable to Wabtec common shareholders - basic	$ 556	$ 413	$ 325
Add: dividends declared - preferred shares	0	0	1
Net income attributable to Wabtec common shareholders - diluted	$ 556	$ 413	$ 326
Denominator
Basic weighted average shares outstanding (in shares)	187.7	189.9	170.5
Assumed conversion of preferred shares (in shares)	0.0	0.0	6.4
Assumed conversion of dilutive stock-based compensation plans (in shares)	0.4	0.5	0.4
Weighted average shares outstanding - diluted (in shares)	188.1	190.4	177.3
Net income per common share attributable to Wabtec shareholders
Basic (in dollars per share)	$ 2.96	$ 2.18	$ 1.91
Diluted (in dollars per share)	$ 2.96	$ 2.17	$ 1.84

X

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- Definition Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities; of income (loss) available to common shareholders. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=124431687&loc=d3e22595-107794 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=125511455&loc=d3e1448-109256 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 11 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=124431687&loc=d3e22694-107794 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=125511455&loc=d3e1377-109256 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 11 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=124431687&loc=d3e22694-107794 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 60B -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=125511455&loc=SL5780133-109256 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599 Reference 10: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 31 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8924-108599 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8906-108599 Reference 12: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=124431687&loc=d3e22583-107794 Reference 13: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599 + Details Name: us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

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- Definition Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities, and addition from assumption of issuance of common shares for dilutive potential common shares; of income (loss) available to common shareholders. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 40 -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=125511455&loc=d3e1930-109256 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 40 -Subparagraph (b)(3) -URI http://asc.fasb.org/extlink&oid=125511455&loc=d3e1930-109256 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 60B -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=125511455&loc=SL5780133-109256 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 40 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=125511455&loc=d3e1930-109256 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=125511455&loc=d3e1505-109256 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 40 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=125511455&loc=d3e1930-109256 + Details Name: us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

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- Definition The aggregate value of preferred stock dividends and other adjustments necessary to derive net income apportioned to common stockholders. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=125511455&loc=d3e1377-109256 + Details Name: us-gaap_PreferredStockDividendsAndOtherAdjustments Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

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- Definition The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=125511455&loc=d3e1505-109256 + Details Name: us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding Namespace Prefix: us-gaap_ Data Type: xbrli:sharesItemType Balance Type: na Period Type: duration

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- Definition Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=125511455&loc=d3e1448-109256 + Details Name: us-gaap_WeightedAverageNumberOfSharesOutstandingBasic Namespace Prefix: us-gaap_ Data Type: xbrli:sharesItemType Balance Type: na Period Type: duration

v3.22.0.1

EARNINGS PER SHARE - Narrative (Details) - shares shares in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Earnings Per Share [Abstract]
Shares not included in computation of diluted earnings per share	0.4	0.3

X

- Definition Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 + Details Name: us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount Namespace Prefix: us-gaap_ Data Type: xbrli:sharesItemType Balance Type: na Period Type: duration

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v3.22.0.1

STOCK-BASED COMPENSATION PLANS - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation expense			$ 46	$ 20	$ 50
Tax benefits related to stock-based compensation plans			1	$ 2	$ 1
Unamortized compensation expense expected to be vested			$ 38
Unamortized compensation expense expected to be vested, period for recognition			1 year 3 months 18 days
Risk-free interest rate, year			7 years
Employee Stock Option
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation expense			$ 3
Non-Vested Restricted Stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation expense			13
Restricted Stock Units (RSUs)
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation expense			$ 6
Incentive Stock Awards
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award vesting period			3 years
Stock-based compensation expense			$ 23
Percentage of incentive stock awards expected to be vested and awarded of stocks granted			33.00%
Incentive Stock Awards | Scenario Forecast
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percentage of incentive stock awards expected to be vested and awarded of stocks granted	117.00%	121.00%
Incentive Stock Awards | Minimum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percentage of incentive stock awards expected to be vested and awarded of stocks granted			0.00%
Incentive Stock Awards | Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percentage of incentive stock awards expected to be vested and awarded of stocks granted			200.00%
Plan 2011
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares available for grant			6,399,200
Plan 2011 | Employee Stock Option
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award vesting period			3 years
Plan term, years			10 years
Plan 2011 | Restricted Stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award vesting period			3 years
Directors Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares issued			951,175
Stock-based compensation expense			$ 1
Directors Plan | Employee Stock Option
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares authorized for grants			1,000,000
Award vesting period			3 years
Plan term, years			10 years
Directors Plan | Restricted Stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award vesting period			1 year
Shares issued			18,142	23,152	15,729
Directors Plan | Restricted Stock Units (RSUs)
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award vesting period			1 year
Plan 2000 | Employee Stock Option
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award vesting period			3 years
Plan term, years			10 years
Plan 2000 | Restricted Stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award vesting period			3 years

X

- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5047-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14.F) -URI http://asc.fasb.org/extlink&oid=122041274&loc=d3e301413-122809 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details Name: us-gaap_AllocatedShareBasedCompensationExpense Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

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- Definition Amount of cost not yet recognized for nonvested award under share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details Name: us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

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- Definition Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details Name: us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1 Namespace Prefix: us-gaap_ Data Type: xbrli:durationItemType Balance Type: na Period Type: duration

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- Definition Amount of tax benefit from exercise of option under share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=120381028&loc=SL79508275-113901 + Details Name: us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

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v3.22.0.1

STOCK-BASED COMPENSATION PLANS - Stock Option Activity (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Options
Outstanding, beginning of period (in shares)	552,669	588,024	466,677
Granted (in shares)	126,794	136,506	134,450
Exercised (in shares)	(113,728)	(86,145)	(4,868)
Canceled (in shares)	(33,820)	(85,716)	(8,235)
Outstanding, end of period (in shares)	531,915	552,669	588,024	466,677
Exercisable, end of period (in shares)	308,591
Weighted Average Exercise Price
Outstanding, beginning of period (in dollars per share)	$ 69.82	$ 63.36	$ 61.04
Granted (in dollars per share)	81.21	77.75	70.44
Exercised (in dollars per share)	50.38	35.47	22.45
Canceled (in dollars per share)	73.53	73.73	73.00
Outstanding, end of period (in dollars per share)	75.40	$ 69.82	$ 63.36	$ 61.04
Exercisable, end of period (in dollars per share)	$ 73.39
Weighted Average Remaining Contractual Life
Outstanding (in years)	6 years 6 months	6 years 1 month 6 days	5 years 8 months 12 days	5 years 8 months 12 days
Exercisable, end of period (in years)	6 years 1 month 6 days
Aggregate Intrinsic Value
Outstanding, beginning of period	$ 4	$ 9	$ 4
Granted	0	0	1
Exercised	0	0	0
Canceled	0	0	0
Outstanding, end of period	9	$ 4	$ 9	$ 4
Exercisable, end of period	$ 6

X

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- Definition The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(3) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details Name: us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod Namespace Prefix: us-gaap_ Data Type: xbrli:sharesItemType Balance Type: na Period Type: duration

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- Definition Net number of share options (or share units) granted during the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details Name: us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod Namespace Prefix: us-gaap_ Data Type: xbrli:sharesItemType Balance Type: na Period Type: duration

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- Definition Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details Name: us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

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- Definition Number of options outstanding, including both vested and non-vested options. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details Name: us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber Namespace Prefix: us-gaap_ Data Type: xbrli:sharesItemType Balance Type: na Period Type: instant

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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details Name: us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

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- Definition Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details Name: us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice Namespace Prefix: us-gaap_ Data Type: dtr-types:perShareItemType Balance Type: na Period Type: instant

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- Definition Weighted average price at which option holders acquired shares when converting their stock options into shares. + References No definition available. + Details Name: us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice Namespace Prefix: us-gaap_ Data Type: dtr-types:perShareItemType Balance Type: na Period Type: duration

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- Definition Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated. + References No definition available. + Details Name: us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice Namespace Prefix: us-gaap_ Data Type: dtr-types:perShareItemType Balance Type: na Period Type: duration

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- Definition Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options. + References No definition available. + Details Name: us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice Namespace Prefix: us-gaap_ Data Type: dtr-types:perShareItemType Balance Type: na Period Type: duration

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- Definition Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details Name: us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1 Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

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- Definition Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details Name: us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1 Namespace Prefix: us-gaap_ Data Type: xbrli:durationItemType Balance Type: na Period Type: duration

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- Definition Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details Name: us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2 Namespace Prefix: us-gaap_ Data Type: xbrli:durationItemType Balance Type: na Period Type: duration

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- Definition Number of share options (or share units) exercised during the current period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(2) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=123467817&loc=d3e21463-112644 + Details Name: us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised Namespace Prefix: us-gaap_ Data Type: xbrli:sharesItemType Balance Type: na Period Type: duration

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v3.22.0.1

STOCK-BASED COMPENSATION PLANS - Stock Options Outstanding (Details)	12 Months Ended
	Dec. 31, 2021 $ / shares shares
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]
Number of Options Outstanding (in shares) | shares	531,915
Weighted Average Exercise Price of Options Outstanding (in dollars per share)	$ 75.40
Number of Options Currently Exercisable (in shares) | shares	308,591
Weighted Average Exercise Price of Options Currently Exercisable (in dollars per share)	$ 73.39
35.00 - 50.00
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]
Exercise price, low range (in dollars per share)	35.00
Exercise price, high range (in dollars per share)	$ 50.00
Number of Options Outstanding (in shares) | shares	35,002
Weighted Average Exercise Price of Options Outstanding (in dollars per share)	$ 47.80
Weighted Average Remaining Contractual Life (in years)	1 year 1 month 6 days
Number of Options Currently Exercisable (in shares) | shares	35,002
Weighted Average Exercise Price of Options Currently Exercisable (in dollars per share)	$ 47.80
50.00 - 65.00
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]
Exercise price, low range (in dollars per share)	50.00
Exercise price, high range (in dollars per share)	$ 65.00
Number of Options Outstanding (in shares) | shares	40,317
Weighted Average Exercise Price of Options Outstanding (in dollars per share)	$ 59.09
Weighted Average Remaining Contractual Life (in years)	4 years 7 months 6 days
Number of Options Currently Exercisable (in shares) | shares	37,217
Weighted Average Exercise Price of Options Currently Exercisable (in dollars per share)	$ 60.52
65.00 - 80.00
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]
Exercise price, low range (in dollars per share)	65.00
Exercise price, high range (in dollars per share)	$ 80.00
Number of Options Outstanding (in shares) | shares	248,483
Weighted Average Exercise Price of Options Outstanding (in dollars per share)	$ 74.43
Weighted Average Remaining Contractual Life (in years)	6 years 10 months 24 days
Number of Options Currently Exercisable (in shares) | shares	143,862
Weighted Average Exercise Price of Options Currently Exercisable (in dollars per share)	$ 73.37
Over 80.00
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]
Exercise price, low range (in dollars per share)	$ 80.00
Number of Options Outstanding (in shares) | shares	208,113
Weighted Average Exercise Price of Options Outstanding (in dollars per share)	$ 84.36
Weighted Average Remaining Contractual Life (in years)	7 years 3 months 18 days
Number of Options Currently Exercisable (in shares) | shares	92,510
Weighted Average Exercise Price of Options Currently Exercisable (in dollars per share)	$ 88.28

X

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- Definition The number of shares reserved for issuance pertaining to the outstanding exercisable stock options as of the balance sheet date in the customized range of exercise prices for which the market and performance vesting condition has been satisfied. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(iii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details Name: us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions Namespace Prefix: us-gaap_ Data Type: xbrli:sharesItemType Balance Type: na Period Type: instant

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- Definition The number of shares reserved for issuance pertaining to the outstanding stock options as of the balance sheet date for all option plans in the customized range of exercise prices. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details Name: us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions Namespace Prefix: us-gaap_ Data Type: xbrli:sharesItemType Balance Type: na Period Type: instant

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- Definition The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details Name: us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit Namespace Prefix: us-gaap_ Data Type: dtr-types:perShareItemType Balance Type: na Period Type: duration

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- Definition Weighted average exercise price as of the balance sheet date for those equity-based payment arrangements exercisable and outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details Name: us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1 Namespace Prefix: us-gaap_ Data Type: dtr-types:perShareItemType Balance Type: na Period Type: instant

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- Definition Weighted average remaining contractual term of outstanding stock options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details Name: us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2 Namespace Prefix: us-gaap_ Data Type: xbrli:durationItemType Balance Type: na Period Type: duration

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v3.22.0.1

STOCK-BASED COMPENSATION PLANS - Schedule of Share-Based Fair Value of Each Option Grant Weighted-Average Assumptions (Details) - $ / shares	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Share-based Payment Arrangement [Abstract]
Dividend yield	0.60%	0.60%	0.66%
Risk-free interest rate	0.80%	1.50%	2.60%
Stock price volatility	36.10%	28.10%	25.80%
Expected life (years)	5 years	5 years	5 years
Weighted average fair value of options granted during the year (in dollars per share)	$ 25.01	$ 21.05	$ 19.54

X

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- Definition The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2)(iii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details Name: us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate Namespace Prefix: us-gaap_ Data Type: dtr-types:percentItemType Balance Type: na Period Type: duration

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- Definition The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2)(ii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details Name: us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate Namespace Prefix: us-gaap_ Data Type: dtr-types:percentItemType Balance Type: na Period Type: duration

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- Definition The risk-free interest rate assumption that is used in valuing an option on its own shares. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2)(iv) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details Name: us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate Namespace Prefix: us-gaap_ Data Type: dtr-types:percentItemType Balance Type: na Period Type: duration

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- Definition The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details Name: us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue Namespace Prefix: us-gaap_ Data Type: dtr-types:perShareItemType Balance Type: na Period Type: duration

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- Definition Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2)(i) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14.D.2) -URI http://asc.fasb.org/extlink&oid=122041274&loc=d3e301413-122809 + Details Name: us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1 Namespace Prefix: us-gaap_ Data Type: xbrli:durationItemType Balance Type: na Period Type: duration

v3.22.0.1

STOCK-BASED COMPENSATION PLANS - Restricted Stock Activity and Incentive Stock Awards Activity (Details) - $ / shares	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Weighted Average Grant Date Fair Value
Outstanding, beginning of period (in dollars per share)	$ 73.80	$ 73.64	$ 75.51
Granted (in dollars per share)	81.64	75.68	70.61
Vested (in dollars per share)	71.82	77.45	71.65
Adjustment for incentive stock awards expected to vest (in dollars per share)	76.26	71.32	78.04
Canceled (in dollars per share)	76.24	72.83	74.04
Outstanding, end of period (in dollars per share)	$ 78.06	$ 73.80	$ 73.64
Restricted Stock and Units
Number of Shares
Outstanding, beginning of period (in shares)	656,006	791,031	445,089
Granted (in shares)	235,902	283,587	608,813
Vested (in shares)	(350,955)	(345,859)	(235,406)
Adjustment for incentive stock awards expected to vest (in shares)	0	0	0
Canceled (in shares)	(33,255)	(72,753)	(27,465)
Outstanding, end of period (in shares)	507,698	656,006	791,031
Incentive Stock Awards
Number of Shares
Outstanding, beginning of period (in shares)	270,645	572,002	415,242
Granted (in shares)	241,467	250,197	259,950
Vested (in shares)	(37,672)	(147,069)	(119,835)
Adjustment for incentive stock awards expected to vest (in shares)	180,767	(331,004)	80,403
Canceled (in shares)	(48,106)	(73,481)	(63,758)
Outstanding, end of period (in shares)	607,101	270,645	572,002

X

- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(3) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details Name: us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod Namespace Prefix: us-gaap_ Data Type: xbrli:sharesItemType Balance Type: na Period Type: duration

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- Definition Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(3) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details Name: us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue Namespace Prefix: us-gaap_ Data Type: dtr-types:perShareItemType Balance Type: na Period Type: duration

X

- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details Name: us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod Namespace Prefix: us-gaap_ Data Type: xbrli:sharesItemType Balance Type: na Period Type: duration

X

- Definition The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details Name: us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue Namespace Prefix: us-gaap_ Data Type: dtr-types:perShareItemType Balance Type: na Period Type: duration

X

- Definition The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details Name: us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber Namespace Prefix: us-gaap_ Data Type: xbrli:sharesItemType Balance Type: na Period Type: instant

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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details Name: us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

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X

- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details Name: us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

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- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(2) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details Name: us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod Namespace Prefix: us-gaap_ Data Type: xbrli:sharesItemType Balance Type: na Period Type: duration

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- Definition Share based compensation arrangement by share based payment award equity instruments other than options nonvested number expected to vest. + References No definition available. + Details Name: wab_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumberExpectedToVest Namespace Prefix: wab_ Data Type: xbrli:sharesItemType Balance Type: na Period Type: duration

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v3.22.0.1

ACCUMULATED OTHER COMPREHENSIVE LOSS (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance beginning of period	$ 10,153	$ 9,994	$ 2,870
Other comprehensive (loss) income, net	(127)	43	(126)
Balance end of period	10,239	10,153	9,994
Foreign currency translation
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance beginning of period	(260)	(308)	(202)
Other comprehensive (loss) income before reclassifications	(136)	48	(106)
Amounts reclassified from Accumulated other comprehensive loss	0	0	0
Other comprehensive (loss) income, net	(136)	48	(106)
Balance end of period	(396)	(260)	(308)
Derivative contracts
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance beginning of period	3	(3)	0
Other comprehensive (loss) income before reclassifications	(8)	6	(3)
Amounts reclassified from Accumulated other comprehensive loss	0	0	0
Other comprehensive (loss) income, net	(8)	6	(3)
Balance end of period	(5)	3	(3)
Pension and post retirement benefit plans
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance beginning of period	(82)	(72)	(55)
Other comprehensive (loss) income before reclassifications	13	(13)	(19)
Amounts reclassified from Accumulated other comprehensive loss	4	3	2
Other comprehensive (loss) income, net	17	(10)	(17)
Balance end of period	(65)	(82)	(72)
Accumulated Other Comprehensive Loss
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance beginning of period	(339)	(383)	(257)
Other comprehensive (loss) income before reclassifications	(131)	41	(128)
Amounts reclassified from Accumulated other comprehensive loss	4	3	2
Other comprehensive (loss) income, net	(127)	44	(126)
Balance end of period	$ (466)	$ (339)	$ (383)

X

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- Definition Amount after tax and reclassification adjustments of other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=124509347&loc=SL7669619-108580 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=124431353&loc=SL124442407-227067 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=123467817&loc=d3e21463-112644 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 45 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=118261656&loc=d3e32136-110900 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(21)) -URI http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227 Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 55 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=124507222&loc=d3e1436-108581 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 45 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6450520&loc=d3e32583-110901 Reference 9: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=124431353&loc=SL124442411-227067 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1B -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=124509347&loc=SL7669625-108580 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(23)) -URI http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260 Reference 12: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(19)) -URI http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263 + Details Name: us-gaap_OtherComprehensiveIncomeLossNetOfTax Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

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v3.22.0.1

LEASES - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Operating Leased Assets [Line Items]
Operating lease expense	$ 59	$ 57	$ 54
New operating leases	$ 80	$ 68
Minimum
Operating Leased Assets [Line Items]
Discount rate (as a percent)	1.00%
Maximum
Operating Leased Assets [Line Items]
Discount rate (as a percent)	9.00%

X

- Definition Amount of increase in lease obligation from new lease. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=123431023&loc=d3e4313-108586 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=123431023&loc=d3e4304-108586 + Details Name: us-gaap_CapitalLeaseObligationsIncurred Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

X

- Definition Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 55 -Paragraph 53 -URI http://asc.fasb.org/extlink&oid=123414884&loc=SL77918982-209971 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980 + Details Name: us-gaap_OperatingLeaseCost Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

X

- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details Name: us-gaap_OperatingLeasedAssetsLineItems Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

X

- Definition Lessee, Weighted Average Discount Rate, Percent + References No definition available. + Details Name: wab_LesseeWeightedAverageDiscountRatePercent Namespace Prefix: wab_ Data Type: dtr-types:percentItemType Balance Type: na Period Type: instant

X

- Details Name: srt_RangeAxis=srt_MinimumMember Namespace Prefix: Data Type: na Balance Type: Period Type:

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- Details Name: srt_RangeAxis=srt_MaximumMember Namespace Prefix: Data Type: na Balance Type: Period Type:

v3.22.0.1

LEASES - Maturity of Lease Liabilities (Details) $ in Millions	Dec. 31, 2021 USD ($)
Operating Leases
2022	$ 60
2023	52
2024	47
2025	40
2026	33
Thereafter	113
Total lease payments	345
Less: Present value discount	$ (27)
Operating Lease, Liability, Statement of Financial Position [Extensible List]	Other accrued liabilities
Present value lease liabilities	$ 318

X

- References No definition available. + Details Name: us-gaap_LeasesOperatingAbstract Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

X

- Definition Amount of lessee's undiscounted obligation for lease payment for operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918701-209980 + Details Name: us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

X

- Definition Amount of lessee's undiscounted obligation for lease payment for operating lease due after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918701-209980 + Details Name: us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

X

- Definition Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918701-209980 + Details Name: us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

X

- Definition Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918701-209980 + Details Name: us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFive Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

X

- Definition Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918701-209980 + Details Name: us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

X

- Definition Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918701-209980 + Details Name: us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

X

- Definition Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918701-209980 + Details Name: us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

X

- Definition Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments for operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918701-209980 + Details Name: us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

X

- Definition Present value of lessee's discounted obligation for lease payments from operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977 + Details Name: us-gaap_OperatingLeaseLiability Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

X

- Definition Indicates line item in statement of financial position that includes operating lease liability. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=123391704&loc=SL77918631-209977 + Details Name: us-gaap_OperatingLeaseLiabilityStatementOfFinancialPositionExtensibleList Namespace Prefix: us-gaap_ Data Type: enum2:enumerationSetItemType Balance Type: na Period Type: instant

v3.22.0.1

LEASES - Lease Term and Discount Rate (Details)	Dec. 31, 2021	Dec. 31, 2020
Weighted-average remaining lease term (years)
Operating leases	8 years 2 months 12 days	7 years 4 months 24 days
Weighted-average discount rate
Operating leases	2.30%	2.70%

X

- Definition Weighted average discount rate for operating lease calculated at point in time. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (g)(4) -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 55 -Paragraph 53 -URI http://asc.fasb.org/extlink&oid=123414884&loc=SL77918982-209971 + Details Name: us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent Namespace Prefix: us-gaap_ Data Type: dtr-types:percentItemType Balance Type: na Period Type: instant

X

- Definition Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 55 -Paragraph 53 -URI http://asc.fasb.org/extlink&oid=123414884&loc=SL77918982-209971 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (g)(3) -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980 + Details Name: us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1 Namespace Prefix: us-gaap_ Data Type: xbrli:durationItemType Balance Type: na Period Type: instant

X

- Definition Weighted-Average Discount Rate + References No definition available. + Details Name: wab_WeightedAverageDiscountRateAbstract Namespace Prefix: wab_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

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- Definition Weighted-Average Remaining Lease Term + References No definition available. + Details Name: wab_WeightedAverageRemainingLeaseTermAbstract Namespace Prefix: wab_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

v3.22.0.1

WARRANTIES (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Movement in Standard and Extended Product Warranty, Increase (Decrease) [Roll Forward]
Balance at beginning of year	$ 279	$ 268
Acquisitions	2	4
Warranty expense	116	130
Warranty claim payments	(124)	(131)
Foreign currency impact	(14)	8
Balance at end of year	$ 259	$ 279

X

- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details Name: us-gaap_MovementInStandardAndExtendedProductWarrantyIncreaseDecreaseRollForward Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

X

- Definition Carrying value as of the balance sheet date of obligations incurred through that date and payable for estimated claims under standard and extended warranty protection rights granted to customers. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.15(5)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=123368208&loc=d3e12565-110249 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph (c)(5) -URI http://asc.fasb.org/extlink&oid=123368208&loc=d3e12565-110249 + Details Name: us-gaap_ProductWarrantyAccrual Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

X

- Definition Amount of increase in the standard and extended product warranty accrual from a business acquisition. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123368208&loc=d3e12565-110249 + Details Name: us-gaap_ProductWarrantyAccrualAdditionsFromBusinessAcquisition Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

X

- Definition Amount of decrease in the standard and extended product warranty accrual from payments made in cash or in kind to satisfy claims under the terms of the standard and extended product warranty. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph ((c)(2)) -URI http://asc.fasb.org/extlink&oid=123368208&loc=d3e12565-110249 + Details Name: us-gaap_ProductWarrantyAccrualPayments Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: duration

X

- Definition Amount of increase in the standard and extended product warranty accrual from warranties issued. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph ((c)(3)) -URI http://asc.fasb.org/extlink&oid=123368208&loc=d3e12565-110249 + Details Name: us-gaap_ProductWarrantyAccrualWarrantiesIssued Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

X

- Definition Amount of foreign currency translation gain (loss) which decreases (increases) the standard and extended product warranty accrual. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123368208&loc=d3e12565-110249 + Details Name: us-gaap_StandardAndExtendedProductWarrantyAccrualForeignCurrencyTranslationGainLoss Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

v3.22.0.1

FAIR VALUE MEASUREMENT AND DERIVATIVE INSTRUMENTS - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Feb. 25, 2019
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Product Warranty Accrual, Noncurrent	$ 141	$ 218
Foreign Exchange Forward | Non-Designated
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Net (loss) gain	$ (5)	(1)	$ 2
Derivative term (in years)	1 year
General Electric Company
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Contingent consideration				$ 440
Other Accrued Liabilities | General Electric Company | Level 3
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Contingent consideration	$ 110	$ 130

X

- Definition Amount of liability recognized arising from contingent consideration in a business combination. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=120321790&loc=d3e6927-128479 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 35 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=116859824&loc=d3e6819-128478 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 25 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6911189&loc=d3e6408-128476 + Details Name: us-gaap_BusinessCombinationContingentConsiderationLiability Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

X

- Definition Period the derivative contract is outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details Name: us-gaap_DerivativeTermOfContract Namespace Prefix: us-gaap_ Data Type: xbrli:durationItemType Balance Type: na Period Type: duration

X

- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details Name: us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems Namespace Prefix: us-gaap_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

X

- Definition Carrying value as of the balance sheet date of obligations incurred through that date and due after one year (or beyond the operating cycle if longer) for estimated claims under standard and extended warranty protection rights granted to customers. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.24) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=121557415&loc=d3e14394-108349 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121557415&loc=d3e14326-108349 + Details Name: us-gaap_ProductWarrantyAccrualNoncurrent Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: instant

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- Definition The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of derivative instruments, including options, swaps, futures, and forward contracts, held at each balance sheet date, that was included in earnings for the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585 + Details Name: us-gaap_UnrealizedGainLossOnDerivatives Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

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- Details Name: us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member Namespace Prefix: Data Type: na Balance Type: Period Type:

v3.22.0.1

FAIR VALUE MEASUREMENT AND DERIVATIVE INSTRUMENTS - Summary of Assets, Liabilities and Gross Notional Amounts (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Designated
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Total	$ 7	$ (21)
Gross Notional Amount	1,254	2,335
Non-Designated
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Total	(2)	(1)
Gross Notional Amount	289	321
Other current assets | Foreign Exchange Contracts | Designated
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Derivative assets at fair value	8	9
Gross Notional Amount	627	794
Other current assets | Foreign Exchange Contracts | Non-Designated
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Derivative assets at fair value	0	1
Gross Notional Amount	0	1
Other current assets | Cross-currency Swaps | Designated
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Derivative assets at fair value	0
Gross Notional Amount	14
Other current assets | Cross-currency Swaps | Non-Designated
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Derivative assets at fair value	0
Gross Notional Amount	0
Other current liabilities | Foreign Exchange Contracts | Designated
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Derivative liabilities at fair value	(1)	(4)
Gross Notional Amount	613	928
Other current liabilities | Foreign Exchange Contracts | Non-Designated
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Derivative liabilities at fair value	(2)	(2)
Gross Notional Amount	$ 289	320
Other current liabilities | Cross-currency Swaps | Designated
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Derivative liabilities at fair value		(26)
Gross Notional Amount		613
Other current liabilities | Cross-currency Swaps | Non-Designated
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Derivative liabilities at fair value		0
Gross Notional Amount		$ 0

X

- Definition Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 22 -URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226052-175313 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226000-175313 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 20 -Section 50 -Paragraph 4D -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=121570589&loc=SL51823488-111719 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (a),(c) -URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5624163-113959 + Details Name: us-gaap_DerivativeFairValueOfDerivativeAsset Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

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v3.22.0.1

COMMITMENTS AND CONTINGENCIES (Details) $ in Millions	Sep. 08, 2017 USD ($)	Dec. 31, 2021 claim
Threatened Litigation | Denver Transit Installation of Constant Wireless Crossings | Subsidiaries
Loss Contingencies [Line Items]
Alleged damages | $	$ 37
Pending Litigation
Loss Contingencies [Line Items]
Pending litigation cases | claim		0

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v3.22.0.1

SEGMENT INFORMATION - Narrative (Details)	12 Months Ended
	Dec. 31, 2021 segment
Segment Reporting [Abstract]
Number of reportable segments	2

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v3.22.0.1

SEGMENT INFORMATION - Segment Financial Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Segment Reporting Information [Line Items]
Total net sales	$ 7,822	$ 7,556	$ 8,200
Income (loss) from operations	876	745	663
Interest expense and other, net	(139)	(188)	(216)
Income (loss) before income taxes	737	557	447
Depreciation and amortization	491	473	401
Capital expenditures	130	136	186
Segment assets	18,454	18,454
Freight Segment
Segment Reporting Information [Line Items]
Total net sales	5,239	5,082	5,441
Transit Segment
Segment Reporting Information [Line Items]
Total net sales	2,583	2,474	2,759
Operating Segments | Freight Segment
Segment Reporting Information [Line Items]
Total net sales	5,287	5,131	5,501
Income (loss) from operations	717	584	643
Interest expense and other, net	0	0	0
Income (loss) before income taxes	717	584	643
Depreciation and amortization	405	393	330
Capital expenditures	79	70	105
Segment assets	18,291	15,393
Operating Segments | Transit Segment
Segment Reporting Information [Line Items]
Total net sales	2,616	2,511	2,782
Income (loss) from operations	238	230	214
Interest expense and other, net	0	0	0
Income (loss) before income taxes	238	230	214
Depreciation and amortization	70	67	62
Capital expenditures	48	40	64
Segment assets	5,768	6,395
Corporate Activities and Elimination
Segment Reporting Information [Line Items]
Total net sales	(81)	(86)	(83)
Income (loss) from operations	(79)	(69)	(194)
Interest expense and other, net	(139)	(188)	(216)
Income (loss) before income taxes	(218)	(257)	(410)
Depreciation and amortization	16	13	9
Capital expenditures	3	26	17
Segment assets	(5,605)	(3,334)
Corporate Activities and Elimination | Freight Segment
Segment Reporting Information [Line Items]
Total net sales	48	49	60
Corporate Activities and Elimination | Transit Segment
Segment Reporting Information [Line Items]
Total net sales	$ 33	$ 37	$ 23

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v3.22.0.1

SEGMENT INFORMATION - Geographic Area Data (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Revenues From External Customers And Long Lived Assets [Line Items]
Total net sales	$ 7,822	$ 7,556	$ 8,200
Long-Lived Assets	1,497	1,601
North America
Revenues From External Customers And Long Lived Assets [Line Items]
Total net sales	4,003	3,720	4,471
Long-Lived Assets	1,011	1,071
United States
Revenues From External Customers And Long Lived Assets [Line Items]
Total net sales	3,321	3,161	3,381
Long-Lived Assets	983	1,039
Canada
Revenues From External Customers And Long Lived Assets [Line Items]
Total net sales	462	372	733
Long-Lived Assets	6	9
Mexico
Revenues From External Customers And Long Lived Assets [Line Items]
Total net sales	220	187	357
Long-Lived Assets	22	23
South America
Revenues From External Customers And Long Lived Assets [Line Items]
Total net sales	301	217	218
Long-Lived Assets	32	32
Europe
Revenues From External Customers And Long Lived Assets [Line Items]
Total net sales	1,680	1,577	1,692
Long-Lived Assets	255	285
United Kingdom
Revenues From External Customers And Long Lived Assets [Line Items]
Total net sales	300	314	376
Long-Lived Assets	45	51
Germany
Revenues From External Customers And Long Lived Assets [Line Items]
Total net sales	383	351	340
Long-Lived Assets	70	82
France
Revenues From External Customers And Long Lived Assets [Line Items]
Total net sales	286	252	294
Long-Lived Assets	54	59
Italy
Revenues From External Customers And Long Lived Assets [Line Items]
Total net sales	196	172	206
Long-Lived Assets	29	31
Switzerland
Revenues From External Customers And Long Lived Assets [Line Items]
Total net sales	88	83	89
Long-Lived Assets	2	2
Other Europe
Revenues From External Customers And Long Lived Assets [Line Items]
Total net sales	427	405	387
Long-Lived Assets	55	60
India
Revenues From External Customers And Long Lived Assets [Line Items]
Total net sales	531	441	504
Long-Lived Assets	151	164
Australia / New Zealand
Revenues From External Customers And Long Lived Assets [Line Items]
Total net sales	386	366	301
Long-Lived Assets	9	12
China
Revenues From External Customers And Long Lived Assets [Line Items]
Total net sales	228	225	290
Long-Lived Assets	32	30
Other Asia / Middle East
Revenues From External Customers And Long Lived Assets [Line Items]
Total net sales	177	199	216
Long-Lived Assets	0	1
Egypt
Revenues From External Customers And Long Lived Assets [Line Items]
Total net sales	32	360	228
Long-Lived Assets	0	0
Other Africa
Revenues From External Customers And Long Lived Assets [Line Items]
Total net sales	72	138	105
Long-Lived Assets	4	4
Russia / CIS
Revenues From External Customers And Long Lived Assets [Line Items]
Total net sales	412	313	$ 175
Long-Lived Assets	$ 3	$ 2

X

- Definition Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(14)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(8)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 360 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=124429447&loc=SL124453093-239630 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(13)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 6: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 852 -SubTopic 10 -Section 55 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=84165509&loc=d3e56426-112766 + Details Name: us-gaap_PropertyPlantAndEquipmentNet Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: debit Period Type: instant

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v3.22.0.1

SEGMENT INFORMATION - Sales by Product (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Revenue from External Customer [Line Items]
Total sales	$ 7,822	$ 7,556	$ 8,200
Freight Segment
Revenue from External Customer [Line Items]
Total sales	5,239	5,082	5,441
Transit Segment
Revenue from External Customer [Line Items]
Total sales	2,583	2,474	2,759
Services
Revenue from External Customer [Line Items]
Total sales	1,617	1,323	1,292
Services | Freight Segment
Revenue from External Customer [Line Items]
Total sales	2,430	2,068	1,991
Equipment | Freight Segment
Revenue from External Customer [Line Items]
Total sales	1,302	1,531	1,700
Components | Freight Segment
Revenue from External Customer [Line Items]
Total sales	867	819	1,073
Digital Electronics | Freight Segment
Revenue from External Customer [Line Items]
Total sales	640	664	677
Original Equipment Manufacturer | Transit Segment
Revenue from External Customer [Line Items]
Total sales	1,193	1,139	1,287
Aftermarket | Transit Segment
Revenue from External Customer [Line Items]
Total sales	$ 1,390	$ 1,335	$ 1,472

X

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- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8906-108599 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 40 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9031-108599 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9038-108599 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130543-203045 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 42 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9054-108599 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130545-203045 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 924 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 11.L) -URI http://asc.fasb.org/extlink&oid=6472922&loc=d3e499488-122856 + Details Name: us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

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v3.22.0.1

OTHER INCOME (EXPENSE), NET (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Other Income and Expenses [Abstract]
Foreign currency gain (loss)	$ 8	$ (8)	$ (14)
Equity income	20	10	8
Expected return on pension assets/amortization	9	10	10
Other miscellaneous income (expense)	1	(1)	(1)
Other income, net	$ 38	$ 11	$ 3

X

- Definition Amount before tax of foreign currency transaction realized gain (loss) recognized in the income statement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=124440516&loc=d3e30840-110895 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=125521441&loc=d3e30690-110894 + Details Name: us-gaap_ForeignCurrencyTransactionGainLossRealized Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

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v3.22.0.1

SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Allowance for doubtful accounts
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period	$ 37	$ 20	$ 17
Charged/ (credited) to expense	3	18	7
Charged/(credited) to other accounts	(1)	0	0
Deductions from reserves	7	1	4
Balance at end of period	32	37	20
Valuation allowance-taxes
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period	42	58	42
Charged/ (credited) to expense	22	(16)	16
Charged/(credited) to other accounts	0	0	0
Deductions from reserves	0	0	0
Balance at end of period	$ 64	$ 42	$ 58

X

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- Definition Amount of increase in valuation and qualifying accounts and reserves from charge to cost and expense. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09(Column C)(1)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690 + Details Name: us-gaap_ValuationAllowancesAndReservesChargedToCostAndExpense Namespace Prefix: us-gaap_ Data Type: xbrli:monetaryItemType Balance Type: credit Period Type: duration

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