Hedging Designation [Domain] Hedging Designation [Domain] Foreign currency gain Foreign Currency Transaction Gain (Loss), Realized Noncurrent liabilities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities Letter of Credit Letter of Credit [Member] Vested (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Net income attributable to Wabtec shareholders Net income attributable to Wabtec shareholders Net Income (Loss) Attributable to Parent Consolidated Entities [Axis] Consolidated Entities [Axis] Entity Emerging Growth Company Entity Emerging Growth Company Expected return on pension assets/amortization Periodic Defined Benefits Expense Reversal of Expense Excluding Interest Cost And Service Cost Component Periodic Defined Benefits Expense Reversal of Expense Excluding Interest Cost And Service Cost Component Weighted Average Remaining Contractual Life Share Based Compensation Arrangement By Share Based Payment Award Options Weighted Average Remaining Contractual Term [Abstract] Accrued compensation Employee-related Liabilities, Current Statistical Measurement [Domain] Statistical Measurement [Domain] Intangible assets, accumulated amortization Finite-Lived Intangible Assets, Accumulated Amortization Entity Address, Address Line One Entity Address, Address Line One Proceeds from disposal of property, plant and equipment Proceeds from Sale of Property, Plant, and Equipment Canceled (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Revenue from Contract with Customer [Abstract] Revenue from Contract with Customer [Abstract] Schedule of Change in Carrying Amount of Contract Assets and Contract Liabilities Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block] Additional paid-in capital Additional Paid in Capital, Common Stock Entity Filer Category Entity Filer Category Canceled (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period Weighted-average remaining lease term (years) Operating Lease, Weighted Average Remaining Lease Term Other noncurrent assets Other Assets, Noncurrent Other comprehensive income (loss) before tax Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Segments [Axis] Segments [Axis] Number of shares available for grant (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant Increase (decrease) in cash Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Debt redemption price (as a percent) Debt Instrument, Redemption Price, Percentage Components of Other Income, Net Schedule of Other Nonoperating Income (Expense) [Table Text Block] Stock based compensation APIC, Share-based Payment Arrangement, Increase for Cost Recognition Accrued income taxes Increase (Decrease) in Income Taxes Payable Additions/adjustments Goodwill, Purchase Accounting Adjustments Document Fiscal Year Focus Document Fiscal Year Focus Lessee, Lease, Description [Line Items] Lessee, Lease, Description [Line Items] Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] Amortization expense Intangible assets, amortization expense Amortization of Intangible Assets Other intangible assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill Other current assets Other Current Assets [Member] Shares not included in computation of diluted earnings per share Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Weighted average discount rate (as a percent) Weighted-average discount rate Operating Lease, Weighted Average Discount Rate, Percent Components of Inventory, Net of Reserves Schedule of Inventory, Current [Table Text Block] Amounts in beginning balance reclassified to revenue Contract with Customer, Liability, Revenue Recognized Acquisitions Standard and Extended Product Warranty Accrual, Additions from Business Acquisition Business Combination and Asset Acquisition [Abstract] Granted (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Business Acquisition [Axis] Business Acquisition [Axis] Accrued postretirement and pension benefits Liability, Defined Benefit Plan, Noncurrent Share Based Compensation Arrangements By Share Based Payment Award Award Type And Plan Name Award Type [Domain] Credit Facility Credit Facility [Domain] Assets Assets [Abstract] Interest expense and other, net Interest Expense And Other Net Amount of interest expense and other revenue and expenses that are associated with the entity's normal revenue producing operation. Exercisable at period end (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number Other Accrued Liabilities Other Accrued Liabilities [Member] Other Accrued Liabilities Goodwill and Intangible Assets Goodwill and Intangible Assets, Policy [Policy Text Block] 2000 Plan Plan Two Thousand [Member] Plan two thousand. FAIR VALUE MEASUREMENT AND DERIVATIVE INSTRUMENTS Derivative Instruments and Hedging Activities Disclosure [Text Block] Granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period GOODWILL AND INTANGIBLE ASSETS Goodwill and Intangible Assets Disclosure [Text Block] Percent of revenue from customers outside the U.S. (as a percent) Concentration Risk, Percentage Cash dividends Dividends, Cash Beginning balance (in shares) Ending balance (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Entity Address, City or Town Entity Address, City or Town Trade Names Trade Names [Member] Retained Earnings Retained Earnings [Member] Debt Instrument Debt Instrument [Axis] 3.45% Senior Notes, due 2026 3.45 Percent Senior Notes Due Two Thousand and Twenty Six [Member] 3.45 Percent Senior Notes Due Two Thousand and Twenty Six [Member] COMMITMENTS AND CONTINGENCIES Commitments and Contingencies Disclosure [Text Block] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Accounts receivable and unbilled accounts receivable Increase (Decrease) in Accounts Receivable Inventory Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory Forth and Fifth fiscal quarters after Nordco acquisition was consummated Debt Instrument, Covenant, Period Two [Member] Debt Instrument, Covenant, Period Two Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative Instruments and Hedging Activities Disclosure [Abstract] Percentage of incentive stock awards expected to be vested and awarded of stocks granted (as a percent) Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] Aftermarket Aftermarket [Member] Aftermarket Schedule Of Segment Reporting Information By Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Entity Interactive Data Current Entity Interactive Data Current Current Availability Line of Credit Facility, Remaining Borrowing Capacity Maximum recurring transfer (up to) Accounts Receivable, after Allowance for Credit Loss, Maximum Recurring Transfer Accounts Receivable, after Allowance for Credit Loss, Maximum Recurring Transfer Net income attributable to Wabtec shareholders (in dollars per share) Basic (in dollars per share) Earnings Per Share, Basic 2025 Lessee, Operating Lease, Liability, to be Paid, Year Three CONTRACT ASSETS AND CONTRACT LIABILITIES Revenue from Contract with Customer [Text Block] Outstanding, beginning of period (in shares) Outstanding, end of period (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Document Type Document Type Schedule Of Product Information [Table] Schedule of Product Information [Table] Geographic Concentration Risk Geographic Concentration Risk [Member] Number of Shares Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Unrealized loss on derivative contracts Unrealized Gain (Loss) on Derivatives Fair Value Measurement [Domain] Fair Value Measurement [Domain] Diluted Earnings Per Share, Diluted [Abstract] Entity Current Reporting Status Entity Current Reporting Status Nordco Nordco [Member] Nordco Derivative asset fair value Derivative Asset, Fair Value, Gross Asset Directors Plan Non-Employee Directors’ Fee and Stock Option Plan [Member] Non-Employee Directors’ Fee and Stock Option Plan [Member] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] Business combination, consideration transferred Business Combination, Consideration Transferred Goodwill [Roll Forward] Goodwill [Roll Forward] Recognized in current year Contract With Customer Liability New Contract Additions Contract With Customer Liability New Contract Additions Plan Name Plan Name [Axis] Summary of Receivables Sold Transfer of Financial Assets Accounted for as Sales [Table Text Block] Total Long-term Debt Document Transition Report Document Transition Report Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] Operating Leases Lessee, Operating Lease, Liability, Payment, Due [Abstract] Finite Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets [Line Items] Total Liabilities and Equity Liabilities and Equity Other accrued liabilities Other Accrued Liabilities, Current Other Income and Expenses [Abstract] Other Income and Expenses [Abstract] Customer deposits Contract with Customer, Liability, Current Scenario [Axis] Scenario [Axis] Gross receivables sold/cash proceeds received Proceeds from Accounts Receivable Securitization Exercised (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Services Service [Member] Lessee, Lease, Description [Table] Lessee, Lease, Description [Table] Proceeds from debt, net of issuance costs Proceeds from Issuance of Long-term Debt and Capital Securities, Net Liabilities and Shareholders’ Equity Liabilities and Equity [Abstract] Accounts payable Increase (Decrease) in Accounts Payable Derivative [Line Items] Derivative [Line Items] Debt Instrument, Covenant, Period [Domain] Debt Instrument, Covenant, Period [Domain] Debt Instrument, Covenant, Period [Domain] Operating Activities Net Cash Provided by (Used in) Operating Activities, Continuing Operations [Abstract] EARNINGS PER SHARE Earnings Per Share [Text Block] Stock repurchase Treasury Stock, Value, Acquired, Cost Method Payments of debt Repayment of Long-term Debt, Long-term Lease Obligation, and Capital Security Operating expenses: Operating Expenses [Abstract] 2026 Finite-Lived Intangible Asset, Expected Amortization, Year Four Proceeds from treasury stock issued from the exercise of stock options and other benefit plans, net of tax Stock Issued During Period, Value, Stock Options Exercised Minimum Minimum [Member] Other assets and liabilities Increase (Decrease) in Other Operating Assets and Liabilities, Net Gross profit Gross Profit Outstanding Borrowings Long-term Line of Credit 2024 Lessee, Operating Lease, Liability, to be Paid, Year Two Effect of changes in currency exchange rates Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Balance Sheet Location [Domain] Balance Sheet Location [Domain] Selling, general and administrative expenses Selling, General and Administrative Expense Unamortized debt issuance costs Debt Issuance Costs, Net Contract Assets Change in Contract with Customer Asset [Roll Forward] Change in Contract with Customer Asset [Roll Forward] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table] Below market intangible amortization Amortization Of Intangible Liability Amortization Of Intangible Liability Subsidiaries Subsidiaries [Member] Trading Symbol Trading Symbol Damages alleged Loss Contingency, Damages Sought, Value Percentage of voting interests acquired Business Acquisition, Percentage of Voting Interests Acquired Liabilities, Current [Abstract] Liabilities, Current [Abstract] Acquisitions of businesses, net of cash acquired Payments to Acquire Businesses, Net of Cash Acquired LONG-TERM DEBT Debt Disclosure [Text Block] Foreign currency translation Accumulated Foreign Currency Adjustment Attributable to Parent [Member] Exercisable (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price Line of Credit Line of Credit [Member] STOCK-BASED COMPENSATION Share-based Payment Arrangement [Text Block] Senior Notes Senior Notes [Member] Fair Value, Inputs, Level 3 Fair Value, Inputs, Level 3 [Member] Cash dividends Payments of Ordinary Dividends, Common Stock INVENTORIES Inventory Disclosure [Text Block] Movement in Standard and Extended Product Warranty, Increase (Decrease) [Roll Forward] Movement in Standard and Extended Product Warranty Accrual, Increase (Decrease) [Roll Forward] Accounting Policies [Abstract] Accounting Policies [Abstract] 2011 Plan Plan Two Thousand Eleven [Member] Plan two thousand eleven. Derivative Instrument [Axis] Derivative Instrument [Axis] Outstanding, weighted average remaining contractual life (in years) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Number of reportable segments Number of Reportable Segments Other noncurrent assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets Letters of Credit Under Credit Agreement Letters of Credit Outstanding, Amount Present value of lease liabilities Operating Lease, Liability Sales by Product Revenue from External Customers by Products and Services [Table Text Block] Common stock, $.01 par value; 500.0 shares authorized: 226.9 and 226.9 shares issued and 182.9 and 185.8 outstanding at March 31, 2022 and December 31, 2021, respectively Common Stock, Value, Issued Other income, net Total Other income, net Nonoperating Income (Expense) Outstanding, beginning of period (in dollars per share) Outstanding, end of period (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Performance Shares Incentive Stock Units Performance Shares [Member] Swing Line Sub Facility Swing Line Sub Facility [Member] Swing Line Sub Facility [Member] Commitments and contingencies (Note 14) Commitments and Contingencies Total noncurrent assets Assets, Noncurrent LEASES Lessee, Operating Leases [Text Block] Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax Remaining 2022 Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year ACQUISITIONS Business Combination Disclosure [Text Block] Restricted Stock Restricted Stock [Member] Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Document Period End Date Document Period End Date 2018 Refinancing Credit Agreement Two Thousand and Eighteen Refinancing Agreement [Member] Two Thousand and Eighteen Refinancing Agreement [Member] Assumed conversion of dilutive stock-based compensation plans (in shares) Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements Goodwill [Line Items] Goodwill [Line Items] Other comprehensive income before reclassifications Other Comprehensive Income (Loss), before Reclassifications, Net of Tax Entity Registrant Name Entity Registrant Name Treasury stock, shares (in shares) Treasury Stock, Shares Interest expense, net Interest Income (Expense), Net Less: Present value discount Lessee, Operating Lease, Liability, Undiscounted Excess Amount Recognized in current year Contract With Customer Asset New Contract Additions Contract With Customer Asset New Contract Additions Work-in-progress Inventory, Work in Process, Net of Reserves 3.20% Senior Notes, due 2025 3.2000 Percent Senior Notes Due Two Thousand and Twenty Five [Member] 3.2000 Percent Senior Notes Due Two Thousand and Twenty Five Total net sales Total sales Revenue from Contract with Customer, Excluding Assessed Tax Assets acquired Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets [Abstract] Finished goods Inventory, Finished Goods, Net of Reserves Stock Option Share-based Payment Arrangement, Option [Member] Consolidation Items [Domain] Consolidation Items [Domain] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Accumulated Other Comprehensive Loss Comprehensive Income, Policy [Policy Text Block] Common Stock Common Stock [Member] SEGMENT INFORMATION Segment Reporting Disclosure [Text Block] Income from operations Income (loss) from operations Operating Income (Loss) 2024 Finite-Lived Intangible Asset, Expected Amortization, Year Two Product Warranties Disclosures [Abstract] Product Warranties Disclosures [Abstract] Hedging Designation [Axis] Hedging Designation [Axis] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Stock-based compensation expense Share-based Payment Arrangement, Noncash Expense Digital Electronics Digital Electronics [Member] Digital Electronics AOCI Attributable to Parent, Net of Tax [Roll Forward] AOCI Attributable to Parent, Net of Tax [Roll Forward] Additional Paid-in Capital Additional Paid-in Capital [Member] Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Acquired Technology Technology-Based Intangible Assets [Member] Cash dividends (in dollars per share) Common Stock, Dividends, Per Share, Cash Paid Income tax benefit related to components of Other comprehensive income (loss) Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] Original Equipment Manufacturer OEM [Member] OEM Treasury Stock Treasury Stock [Member] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis] Changes in Product Warranty Reserve Schedule of Product Warranty Liability [Table Text Block] Collateral Held [Domain] Collateral Held [Domain] Gross Notional Amount Derivative, Notional Amount Other miscellaneous expense, net Other Nonoperating Income (Expense) Warranty claim payments Standard and Extended Product Warranty Accrual, Decrease for Payments Purchase of property, plant and equipment Payments to Acquire Property, Plant, and Equipment Total Derivative, Fair Value, Net Foreign currency impact Contract with Customer Liability Increase (Decrease) Foreign Currency Translation Adjustment Contract with Customer Liability Increase (Decrease) Foreign Currency Translation Adjustment Maximum Maximum [Member] Foreign currency translation gain (loss) Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, before Tax Share-based Payment Arrangement [Abstract] Share-based Payment Arrangement [Abstract] Total Liabilities Liabilities Raw materials Inventory, Raw Materials, Net of Reserves Award Type Award Type [Axis] 2023 Finite-Lived Intangible Asset, Expected Amortization, Year One Outstanding, aggregate intrinsic value Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value 1.25% Senior Notes (EUR), due 2027 1.25 Percent Euro Notes Due Two Thousand and Twenty Seven [Member] 1.25 Percent Euro Notes Due Two Thousand and Twenty Seven Maturity of Operating Lease Liabilities Lessee, Operating Lease, Liability, Maturity [Table Text Block] Consolidation Items [Axis] Consolidation Items [Axis] Total Westinghouse Air Brake Technologies Corporation shareholders’ equity Stockholders' Equity Attributable to Parent Common stock, shares issued (in shares) Common Stock, Shares, Issued Exercisable, aggregate intrinsic value Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value Designated Designated as Hedging Instrument [Member] Unrealized gain (loss) on pension benefit plans and post-retirement benefit plans Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, before Tax Goodwill and Intangible Assets Disclosure [Abstract] Goodwill and Intangible Assets Disclosure [Abstract] Repurchase of stock Payments for Repurchase of Common Stock Changes in Accumulated Other Comprehensive Loss by Component, Net of Tax Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Restricted Stock and Units Restricted Stock And Units [Member] Restricted stock and units. Intangible Assets Disclosure [Table] Schedule of Indefinite-Lived Intangible Assets [Table] Balance Sheet Location [Axis] Balance Sheet Location [Axis] Restricted Stock Activity and Incentive Stock Awards Activity Schedule of Incentive Stock Awards Activity and Restricted Stock Activity [Table Text Block] Schedule of Incentive Stock Awards Activity and Restricted Stock Activity [Table Text Block] Face Value Debt Instrument, Face Amount Effective interest rate (as a percent) Debt Instrument, Interest Rate, Effective Percentage Contract Liabilities Change in Contract with Customer Liability [Roll Forward] Change in Contract with Customer Liability [Roll Forward] Net assets acquired Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net City Area Code City Area Code Retained earnings Retained Earnings (Accumulated Deficit) Operating Segments Operating Segments [Member] Litigation Case [Domain] Litigation Case [Domain] Plan term (in years) Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Summary of Preliminary Estimated Fair Values of the Assets Acquired and Liabilities Assumed at the Date of the Acquisition Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block] Business Acquisition [Line Items] Business Acquisition [Line Items] Backlog Order or Production Backlog [Member] Income Statement [Abstract] Income Statement [Abstract] Amendment Flag Amendment Flag Fair Value Estimate of Fair Value Measurement [Member] Inventory Disclosure [Abstract] Inventory Disclosure [Abstract] Collateral Pledged Collateral Pledged [Member] Number of countries company operates Number of Countries in which Entity Operates Accounts receivable Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables Warranty expense Standard and Extended Product Warranty Accrual, Increase for Warranties Issued Derivative term (maximum) Derivative, Term of Contract Canceled (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price Finite Lived Intangible Assets By Major Class Finite-Lived Intangible Assets by Major Class [Axis] Income tax expense Income Tax Expense (Benefit) Total Equity Beginning Balance Ending Balance Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Accounts receivable Accounts Receivable, after Allowance for Credit Loss, Current Foreign currency impact/other Standard and Extended Product Warranty Accrual, Foreign Currency Translation Gain (Loss) Equity Components [Axis] Equity Components [Axis] Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Table] Antidilutive Securities [Axis] Antidilutive Securities [Axis] Total current assets Current assets Assets, Current Total lease payments Lessee, Operating Lease, Liability, to be Paid Noncurrent contract assets Contract with Customer, Asset, after Allowance for Credit Loss, Noncurrent Concentration Risk Type Concentration Risk Type [Domain] Denominator Weighted Average Number of Shares Outstanding Reconciliation [Abstract] Canceled (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Inventories Total inventories Inventory, Net Segment Financial Information Schedule of Segment Reporting Information, by Segment [Table Text Block] Entity File Number Entity File Number General Electric Company General Electric Company [Member] General Electric Company [Member] Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Contingent consideration Contingent consideration, noncurrent Business Combination, Contingent Consideration, Liability, Noncurrent Current portion of long-term debt Long-term Debt, Current Maturities Product Or Service Product and Service [Axis] Financing Activities Net Cash Provided by (Used in) Financing Activities, Continuing Operations [Abstract] Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Entity Small Business Entity Small Business OTHER INCOME, NET Other Income and Other Expense Disclosure [Text Block] WARRANTIES Product Warranty Disclosure [Text Block] Equity Component [Domain] Equity Component [Domain] 2023 Lessee, Operating Lease, Liability, to be Paid, Year One Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Statement [Line Items] Statement [Line Items] Litigation Case [Axis] Litigation Case [Axis] Fiscal quarter in which Nordco acquisition was consummated Debt Instrument, Covenant, Period One [Member] Debt Instrument, Covenant, Period One Freight Segment Freight Segment [Member] Freight Segment Weighted Average Exercise Price Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] Remaining performance obligations, amount Revenue, Remaining Performance Obligation, Amount Trade names Indefinite-Lived Trademarks Proceeds from treasury stock issued from the exercise of stock options and other benefit plans, net of tax (in shares) Stock Granted Exercised And Cancelled For Various Equity Instruments Stock awards granted, exercised and cancelled for the following forms of stock compensation 1) Stock Options 2) Restricted Stock Awards and 3) Incentive Stock Awards. 2026 Lessee, Operating Lease, Liability, to be Paid, Year Four Debt Disclosure [Abstract] Debt Disclosure [Abstract] Entity Address, State or Province Entity Address, State or Province Income before income taxes Income (loss) before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Fair Value, Inputs, Level 2 Fair Value, Inputs, Level 2 [Member] 1.25 Percent Senior Notes Due 2027 1.25 Percent Senior Notes Due Two Thousand and Twenty Six [Member] 1.25 Percent Senior Notes Due Two Thousand and Twenty Seven Noncurrent contract liabilities Contract with Customer, Liability, Noncurrent Current year amounts reclassified to revenue Contract with Customer Liability Revenue Recognized from Current Year Additions Contract with Customer Liability Revenue Recognized from Current Year Additions Segment Reporting [Abstract] Segment Reporting [Abstract] Trade names, useful life Finite-Lived Intangible Asset, Useful Life Use of Estimates Use of Estimates, Policy [Policy Text Block] Computation of Earnings Per Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Number of options granted in period Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross Entity Shell Company Entity Shell Company Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Local Phone Number Local Phone Number Other comprehensive income (loss), net of tax Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Scenario Forecast Forecast [Member] Current liabilities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities Total Assets Assets Plan Name Plan Name [Domain] Common stock, shares authorized (in shares) Common Stock, Shares Authorized Depreciation Expense Depreciation, Depletion, and Amortization [Policy Text Block] Numerator Net Income (Loss) Attributable to Parent [Abstract] Geographical [Domain] Geographical [Domain] Non-controlling Interest Noncontrolling Interest [Member] Engineering expenses Research and Development Expense Products And Services Product and Service [Domain] Depreciation and amortization Depreciation, Depletion and Amortization, Nonproduction Stated interest rate (as a percent) Debt Instrument, Interest Rate, Stated Percentage Derivative Contract Type Derivative Contract [Domain] Less: Net income attributable to noncontrolling interest Net Income (Loss) Attributable to Noncontrolling Interest Contingent consideration, current Business Combination, Contingent Consideration, Liability Share Based Compensation Arrangement By Share Based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Schedule of Line of Credit Facilities Schedule of Line of Credit Facilities [Table Text Block] Revolving Credit Facility Revolving Credit Facility [Member] ACCOUNTING POLICIES Significant Accounting Policies [Text Block] Performance obligation period Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities Accounts, Notes, Loans and Financing Receivable [Line Items] Accounts, Notes, Loans and Financing Receivable [Line Items] Litigation Status [Axis] Litigation Status [Axis] Schedule of Debt Schedule of Debt [Table Text Block] Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Lease Expense, Term and Discount Rate Lease, Cost [Table Text Block] Entity Tax Identification Number Entity Tax Identification Number Basic Earnings Per Share, Basic [Abstract] Collections reinvested under revolving agreement Repayments of Accounts Receivable Securitization Denver Transit, Installation of Constant Wireless Crossings Denver Transit Installation of Constant Wireless Crossings [Member] Denver Transit Installation of Constant Wireless Crossings [Member] Geographical [Axis] Geographical [Axis] Debt Instrument, Covenant, Period [Axis] Debt Instrument, Covenant, Period [Axis] Debt Instrument, Covenant, Period Basic (in shares) Weighted average shares outstanding- basic (in shares) Weighted Average Number of Shares Outstanding, Basic Net income attributable to Wabtec shareholders (in dollars per share) Diluted (in dollars per share) Earnings Per Share, Diluted Segments [Domain] Segments [Domain] Goods Product [Member] RUSSIAN FEDERATION RUSSIAN FEDERATION Non-US Non-US [Member] Comprehensive income attributable to Wabtec shareholders Comprehensive Income (Loss), Net of Tax, Attributable to Parent Other intangible assets, net Intangible Assets, Net (Excluding Goodwill) Balance at beginning of year Balance at end of period Contract with Customer, Liability Net cash (used for) provided by financing activities Net Cash Provided by (Used in) Financing Activities Treasury stock, at cost, 44.0 and 41.1 shares, at March 31, 2022 and December 31, 2021, respectively Treasury Stock, Value Weighted average shares outstanding Weighted Average Number of Shares Outstanding, Diluted [Abstract] Deferred income taxes Deferred Income Tax Liabilities, Net Award vesting period (in years) Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Equity income Income (Loss) from Equity Method Investments Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Property, plant and equipment Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment Accounts payable Accounts Payable, Current Concentration Risk By Type Concentration Risk Type [Axis] Threatened Litigation Threatened Litigation [Member] Collateral Held [Axis] Collateral Held [Axis] 2025 Finite-Lived Intangible Asset, Expected Amortization, Year Three Accumulated Other Comprehensive Loss AOCI Attributable to Parent AOCI Attributable to Parent [Member] Remainder of 2022 Finite-Lived Intangible Asset, Expected Amortization, Remainder of Fiscal Year Inventories Increase (Decrease) in Inventories Interest Coverage Ratio Debt Instrument, Restrictive Covenants, EBITDA to Interest Expense Ratio, Minimum Debt Instrument, Restrictive Covenants, EBITDA to Interest Expense Ratio, Minimum Balance at beginning of year Balance at end of period Contract with Customer, Asset, after Allowance for Credit Loss Common stock, shares outstanding (in shares) Common Stock, Shares, Outstanding Derivative [Table] Derivative [Table] Unrealized gain (loss) on derivative contracts Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, before Tax Balance at the beginning Balance at end of period Standard and Extended Product Warranty Accrual Total cost of sales Cost of Goods and Services Sold Net sales: Revenues [Abstract] Accrued warranty Product Warranty Accrual, Current Concentration Risk Benchmark Concentration Risk Benchmark [Domain] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Consolidated Entities [Domain] Consolidated Entities [Domain] Options Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] Corporate Activities and Elimination Corporate And Eliminations [Member] Corporate And Eliminations [Member] Investing Activities Net Cash Provided by (Used in) Investing Activities, Continuing Operations [Abstract] Equity Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Customer Relationships Customer Relationships [Member] Loss Contingencies [Line Items] Loss Contingencies [Line Items] Total assets acquired Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets, Including Goodwill Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets, Including Goodwill Property, plant and equipment, net Property, Plant and Equipment, Net Total operating expenses Operating Expenses Other long-term liabilities Other Liabilities, Noncurrent Net cash proceeds received Proceeds from (Repayments of) Accounts Receivable Securitization Schedule of Long-term Debt Schedule of Long-term Debt Instruments [Table Text Block] Amortization Expense Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] Stock repurchase (in shares) Treasury Stock, Shares, Acquired Debt Instrument [Line Items] Debt Instrument [Line Items] Earnings Per Share [Abstract] Earnings Per Share [Abstract] Revenue from Contract with Customer Benchmark Revenue from Contract with Customer Benchmark [Member] Document Quarterly Report Document Quarterly Report Equipment Equipment [Member] Remaining performance obligation percentage expected to be recognized Revenue, Remaining Performance Obligation, Percentage Amounts reclassified from Accumulated other comprehensive loss Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax Other current liabilities Other Current Liabilities [Member] Foreign currency impact Contract With Customer Asset Increase (Decrease) Foreign Currency Translation Adjustment Contract With Customer Asset Increase (Decrease) Foreign Currency Translation Adjustment Foreign Exchange Contracts Foreign Exchange Contract [Member] Beginning balance (in dollars per share) Ending balance (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Long-term debt Long-term Debt, Excluding Current Maturities Schedule Of Goodwill [Table] Schedule of Goodwill [Table] Stock-based compensation expense Share-based Payment Arrangement, Expense Provisions for loss contracts Provision for Loss on Contracts Exercisable weighted average remaining contractual life (in years) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Earnings Per Common Share Net income attributable to Wabtec shareholders per common share Earnings Per Share, Basic and Diluted [Abstract] Weighted Average Grant Date Fair Value Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Document Fiscal Period Focus Document Fiscal Period Focus Effective tax rate Effective Income Tax Rate Reconciliation, Percent UKRAINE UKRAINE Other Borrowings Other Debt Obligations [Member] Net income Net income Net income Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Transit Segment Transit Segment [Member] Transit segment. Total liabilities assumed Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities Net loss on disposal of property, plant and equipment Gain (Loss) on Disposition of Property Plant Equipment Cash and cash equivalents, beginning of period Cash and cash equivalents, end of period Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Unbilled accounts receivable Contract with Customer, Asset, after Allowance for Credit Loss, Current Beginning Balance (in shares) Ending Balance (in shares) Shares, Issued Product Information [Line Items] Product Information [Line Items] Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Number of countries where product is found (more than) Number Of Countries Where Product Found Number of countries where product found. Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Assets, Current [Abstract] Assets, Current [Abstract] Other financing activities Proceeds from (Payments for) Other Financing Activities Leases [Abstract] Leases [Abstract] Cost of sales: Cost of Goods and Services Sold [Abstract] Entity Central Index Key Entity Central Index Key Intangible Assets of the Company, Other Than Goodwill and Trade Names Schedule of Finite-Lived Intangible Assets [Table Text Block] Intangible assets, weighted average remaining useful life (years) Finite-Lived Intangible Assets, Remaining Amortization Period Security Exchange Name Security Exchange Name Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated Other Comprehensive Income (Loss) [Line Items] Exercised (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Revenue Recognition Revenue from Contract with Customer [Policy Text Block] Revolving Receivables Program Accounts Receivable Securitization, Policy [Policy Text Block] Accounts Receivable Securitization, Policy Diluted (in shares) Weighted average shares outstanding- diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Other comprehensive income (loss), net of tax Other comprehensive income, net Other Comprehensive Income (Loss), Net of Tax Liabilities assumed Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities [Abstract] INCOME TAXES Income Tax Disclosure [Text Block] Multi-Currency Revolving loan facility Multi-Currency Revolving Loan Facility [Member] Multi-Currency Revolving Loan Facility Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Current Fiscal Year End Date Current Fiscal Year End Date Stock Option Activity Share-based Payment Arrangement, Option, Activity [Table Text Block] Measurement Basis [Axis] Measurement Basis [Axis] Derivative contracts Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member] Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Other income and expenses: Nonoperating Income (Expense) [Abstract] Cross-currency Swaps Currency Swap [Member] Non-Designated Not Designated as Hedging Instrument [Member] Aggregate Intrinsic value (in millions) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments, Nonvested, Aggregate Intrinsic Value [Roll Forward] Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments, Nonvested, Aggregate Intrinsic Value [Roll Forward] Credit Facility Credit Facility [Axis] Intangible Assets Disclosure [Line Items] Indefinite-lived Intangible Assets [Line Items] Finite Lived Intangible Assets Major Class Name Finite-Lived Intangible Assets, Major Class Name [Domain] Net cash used for investing activities Net Cash Provided by (Used in) Investing Activities Portion at Fair Value Measurement Portion at Fair Value Measurement [Member] Changes in operating assets and liabilities, net of acquisitions Increase (Decrease) in Operating Capital [Abstract] Other current assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Other Vested (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value 4.15% Senior Notes, due 2024 4.150 Percent Senior Notes Due Two Thousand and Twenty Four [Member] 4.150 Percent Senior Notes Due Two Thousand and Twenty Four [Member] Total current liabilities Liabilities, Current Litigation Status [Domain] Litigation Status [Domain] Lease obligation incurred Lease Obligation Incurred Foreign Exchange Forward Foreign Exchange Forward [Member] Maximum borrowing capacity Maximum Availability Line of Credit Facility, Maximum Borrowing Capacity Foreign currency impact Goodwill, Foreign Currency Translation Gain (Loss) Loss Contingencies [Table] Loss Contingencies [Table] Cash and cash equivalents Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Entity Address, Postal Zip Code Entity Address, Postal Zip Code Reclassified to accounts receivable Contract with Customer, Asset, Reclassified to Receivable Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Title of 12(b) Security Title of 12(b) Security Statement [Table] Statement [Table] Other current assets Other Assets, Current Accounting Standards Recently Adopted New Accounting Pronouncements, Policy [Policy Text Block] Unamortized compensation expense expected to be vested Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount Statistical Measurement [Axis] Statistical Measurement [Axis] Liabilities at fair value Derivative Liability, Fair Value, Gross Liability Cover page. Cover [Abstract] Intangible assets, net of accumulated amortization Finite-Lived Intangible Assets, Net Goodwill Beginning balance Ending balance Goodwill Noncontrolling interest Stockholders' Equity Attributable to Noncontrolling Interest 4.70% Senior Notes, due 2028 4.70 Percent Senior Notes Due Two Thousand and Twenty Six [Member] 4.70 Percent Senior Notes Due Two Thousand and Twenty Eight [Member] Scenario [Domain] Scenario [Domain] Change in the Carrying Amount of Goodwill by Segment Schedule of Goodwill [Table Text Block] BUSINESS Nature of Operations [Text Block] Adjustments to reconcile net income to net cash provided by operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Components Components [Member] Components Accrued liabilities and customer deposits Increase Decrease In Accrued Liabilities And Customer Deposits Increase decrease in accrued liabilities and customer deposits. Summary of Notional Amounts and Fair Value Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] Operating lease cost Operating Lease, Cost 4.375% Senior Notes, due 2023 4.375 Percent Senior Notes Due Two Thousand and Twenty Three [Member] 4.375 Percent Senior Notes Due Two Thousand and Twenty Three [Member] Concentration Risk By Benchmark Concentration Risk Benchmark [Axis] Pension and postretirement benefit plans Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] Thereafter Lessee, Operating Lease, Liability, Payments, Due after Year Four Lessee, Operating Lease, Liability, Payments, Due after Year Four Schedule Of Finite Lived Intangible Assets [Table] Schedule of Finite-Lived Intangible Assets [Table] Acquisitions Contract with Customer, Liability, Increase (Decrease) for Contract Acquired in Business Combination Leverage ratio Leverage Ratio Debt Instrument, Restrictive Covenants, Leverage Ratio, Maximum Debt Instrument, Restrictive Covenants, Leverage Ratio, Maximum