Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative Instruments and Hedging Activities Disclosure [Abstract] Inventory Disclosure [Abstract] Inventory Disclosure [Abstract] Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Defined Benefit Plan Disclosure [Line Items] Defined Benefit Plan Disclosure [Line Items] Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets [Abstract] Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets [Abstract] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] 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. Basic Earnings Per Share, Basic [Abstract] Legal Entity [Axis] Legal Entity [Axis] Concentration Risk Type [Domain] Concentration Risk Type [Domain] Unamortized compensation expense expected to be vested Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount Machinery and equipment Machinery and Equipment, Gross Incentive Stock Awards Performance Shares [Member] NAV Fair Value Measured at Net Asset Value Per Share [Member] Over 80.00 Exercise Price Range Five [Member] Exercise Price Range Five. Thereafter Lessee, Operating and Finance Lease, Liability, Total Payments, Due After Year Five Lessee, Operating and Finance Lease, Liability, Total Payments, Due After Year Five Equity earnings (loss) Income (Loss) from Subsidiaries, Net of Tax GET Brazil GET Brazil [Member] GET Brazil Debt Securities and other Defined Benefit Plan, Debt Securities and Other, Non US [Member] Defined Benefit Plan, Debt Securities and Other, Non US Other income, net Other Operating Income (Expense), Net Noncurrent assets Assets for Plan Benefits, Defined Benefit Plan Expected return on plan assets Defined Benefit Plan, Expected Return (Loss) on Plan Assets Schedule of Line of Credit Facilities Schedule of Line of Credit Facilities [Table Text Block] Depreciation expense Depreciation Number of options outstanding (in shares) Share-based Payment Arrangement, Option, Exercise Price Range, Shares Outstanding Contingent consideration Product Warranty Accrual, Noncurrent Other current assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Other 2024 Lessee, Operating Lease, Liability, Payments, Due Year Five Weighted Average Exercise Price Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] Granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures Export sales Export Sales Goods or services sold to a foreign country. Concentration Risk Type [Axis] Concentration Risk Type [Axis] Employer contributions Defined Benefit Plan, Plan Assets, Contributions by Employer Hedging Relationship [Axis] Hedging Relationship [Axis] Amounts recognized in accumulated other comprehensive income (loss) consist of: Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss) [Abstract] Schedule of Cash Flow Disclosures Schedule of Cash Flow, Supplemental Disclosures [Table Text Block] Exercisable, end of period Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value Amounts in beginning balance reclassified to revenue Contract with Customer, Liability, Revenue Recognized Components of Accumulated Other Comprehensive Loss Comprehensive Income (Loss) [Table Text Block] Property, plant and equipment, net Long-Lived Assets Property, plant and equipment Property, Plant and Equipment, Net Outstanding, beginning of period Outstanding, end of period Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value Debt Instrument Debt Instrument [Axis] Level 2 Fair Value, Inputs, Level 2 [Member] 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 Total lease payments Lessee, Operating and Finance Lease, Liability, Payments Due Lessee, Operating and Finance Lease, Liability, Payments Due Schedule Of Goodwill [Table] Schedule of Goodwill [Table] Projected benefit obligation Defined Benefit Plan, Pension Plan with Projected Benefit Obligation in Excess of Plan Assets, Projected Benefit Obligation Hedging Relationship [Domain] Hedging Relationship [Domain] Employee Stock Option Share-based Payment Arrangement, Option [Member] Gross decreases - audit settlement during year Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities Restricted cash Restricted Cash and Cash Equivalents, Current Canada CANADA Total deferred income tax liabilities Deferred Tax Liabilities, Net Canceled (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period Interest rate swap agreements Interest Rate Swap [Member] Statement [Table] Statement [Table] AOCI Attributable to Parent, Net of Tax [Roll Forward] AOCI Attributable to Parent, Net of Tax [Roll Forward] China CHINA Foreign Exchange Forward Foreign Exchange Forward [Member] Net Proceeds Proceeds from Issuance of Debt Domestic Income (Loss) from Continuing Operations before Income Taxes, Domestic Changes in operating assets and liabilities, net of acquisitions Increase (Decrease) in Operating Capital [Abstract] Number of shares available for grant Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant France tax rate change Effective Income Tax Rate Reconciliation, France Income Tax Rate Differential Effective Income Tax Rate Reconciliation, France Income Tax Rate Differential Restricted Stock and Units Restricted Stock And Units [Member] Restricted stock and units. Gross decreases - expiration of audit statute of limitations Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations Total Lease, Cost LONG-TERM DEBT Debt Disclosure [Text Block] SpinCo Class B Preferred Stock SpinCo Class B Preferred Stock [Member] SpinCo Class B Preferred Stock [Member] Tax benefit related to French Finance Act Effective Tax Rate Reconciliation, French Finance Act Of 2018 Expense (Benefit) Effective Tax Rate Reconciliation, French Finance Act Of 2018 Expense (Benefit) Germany GERMANY Debt issuance face value (as a percent) Debt Instrument, Redemption Price, Percentage Depreciation and amortization Depreciation, Depletion and Amortization, Nonproduction Foreign currency impact Contract with Customer Liability Increase (Decrease) Foreign Currency Translation Adjustment Contract with Customer Liability Increase (Decrease) Foreign Currency Translation Adjustment Other miscellaneous (expense) income Other Nonoperating Income (Expense) Warranty expense Standard and Extended Product Warranty Accrual, Increase for Warranties Issued SpinCo Class C Preferred Stock SpinCo Class C Preferred Stock [Member] SpinCo Class C Preferred Stock [Member] Basic (in shares) Denominator for basic earnings per common share - weighted average shares (in shares) Weighted Average Number of Shares Outstanding, Basic Intangible assets, net of accumulated amortization Finite-Lived Intangible Assets, Net Risk-free interest rate (as a percent) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Disclosure Stock Option Activity [Abstract] Disclosure Stock Option Activity [Abstract] Disclosure stock option activity. Net operating loss carry-forwards Operating Loss Carryforwards 2021 Finite-Lived Intangible Assets, Amortization Expense, Year Two Assets Assets [Abstract] Wabtec Wabtec [Member] Wabtec [Member] Change in the Carrying Amount of Goodwill by Segment Schedule of Goodwill [Table Text Block] Recognized in current year Contract With Customer Asset New Contract Additions Contract With Customer Asset New Contract Additions Summary Of Significant Accounting Policies [Table] Summary Of Significant Accounting Policies [Table] Summary of significant accounting policies. Total other assets Other Assets Non Current Including Goodwill And Intangible Assets Net Other Non-Current Assets that includes Goodwill, Other Intangibles net, and Other noncurrent assets. Other Current Assets Derivative Asset Debt Instrument [Table] Schedule of Long-term Debt Instruments [Table] Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Accounts payable Increase (Decrease) in Accounts Payable Gross deferred income tax assets Deferred Tax Assets, Gross Prior service cost Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, Prior Service Cost (Credit), before Tax Amortization or settlement recognition of net loss Other Comprehensive Income Defined Benefit Plans Amortization Or Settlement Recognition Of Net Loss Gain Amortization or settlement recognized as part of other comprehensive income for defined benefit Plans. Australia FRANCE Document Fiscal Year Focus Document Fiscal Year Focus Revenue from Contract with Customer [Abstract] Revenue from Contract with Customer [Abstract] United Kingdom UNITED KINGDOM Interest paid during the year Interest Paid, Excluding Capitalized Interest, Operating Activities Foreign currency translation Accumulated Foreign Currency Adjustment Attributable to Parent [Member] Services Service [Member] Business combination, consideration transferred Business Combination, Consideration Transferred Preferred stock, shares issued (in shares) Preferred Stock, Shares Issued Derivative term (in years) Derivative, Term of Contract Entity Emerging Growth Company Entity Emerging Growth Company Retained Earnings Retained Earnings [Member] Segments [Domain] Segments [Domain] FIP / RP Status Pending / Implemented Multiemployer Plans, Funding Improvement Plan and Rehabilitation Plan [Fixed List] Net cash used for investing activities Net Cash Provided by (Used in) Investing Activities 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Amount Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] 2020 Lessee, Operating and Finance Lease, Liability, Total Payments, Next Twelve Months Lessee, Operating and Finance Lease, Liability, Total Payments, Next Twelve Months Business Combinations [Abstract] Business Combinations [Abstract] 2023 Lessee, Operating and Finance Lease, Liability, Total Payments, Due Year Four Lessee, Operating and Finance Lease, Liability, Total Payments, Due Year Four Reclassification Out Of Accumulated Other Comprehensive Income [Table] Reclassification out of Accumulated Other Comprehensive Income [Table] Defined Contribution Plan Disclosure [Line Items] Defined Contribution Plan Disclosure [Line Items] Interest Coverage Ratio & Leverage Ratio Schedule of Debt [Table Text Block] Total lease payments Lessee, Operating Lease, Liability, Payments, Due Performance obligation, term Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period Computation of Earnings Per Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Number of shares issued in transaction (in shares) Sale of Stock, Number of Shares Issued in Transaction Entity [Domain] Entity [Domain] Portion at Fair Value Measurement Portion at Fair Value Measurement [Member] Property, Plant and Equipment, Type Property, Plant and Equipment, Type [Axis] GE and Pre-Merger Holders GE and Pre-Merger Holders [Member] GE and Pre-Merger Holders [Member] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Total Equity Balance beginning of period Balance end of period Total accumulated other comprehensive loss Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Noncontrolling interest Stockholders' Equity Attributable to Noncontrolling Interest Stock Option Activity Share-based Payment Arrangement, Option, Activity [Table Text Block] Property, Plant and Equipment Property, Plant and Equipment, Policy [Policy Text Block] Line of Credit Line of Credit [Member] Segments [Axis] Segments [Axis] India INDIA Schedule of U.S. and International Pension Plans with Accumulated Benefit Obligations and with Projected Benefit Obligations in Excess of Plan Assets Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets [Table Text Block] Multi-employer pension and health & welfare plans Multiemployer Plan, Cost Multiemployer Plan, Cost OTHER INCOME, NET Other Income and Other Expense Disclosure [Text Block] DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGING Derivative Instruments and Hedging Activities Disclosure [Text Block] PROPERTY, PLANT & EQUIPMENT Property, Plant and Equipment Disclosure [Text Block] France ITALY 2023 Long-term Debt, Maturities, Repayments of Principal in Year Four Equity Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Recently Issued and Adopted Accounting 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Arrangements, Change in Amount of Contingent Consideration, Asset Other Payments for (Proceeds from) Other Investing Activities Acquisition payments Stock and cash paid Payments to Acquire Businesses, Gross SpinCo Class A Preferred Stock SpinCo Class A Preferred Stock [Member] SpinCo Class A Preferred Stock [Member] Shares issued Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period Current liabilities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities Noncontrolling Interest Noncontrolling Interest [Member] Less: Net loss attributable to noncontrolling interest Net Income (Loss) Attributable to Noncontrolling Interest Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, 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Canceled Share Based Compensation Arrangement by Share-based Payment Award, Options, Canceled, Intrinsic Value Share Based Compensation Arrangement by Share-based Payment Award, Options, Canceled, Intrinsic Value Estimated useful lives in years Property, Plant and Equipment, Useful Life Interest rate on notional value (as a percent) Derivative, Fixed Interest Rate Designated as Hedging Instrument Designated as Hedging Instrument [Member] Selected Quarterly Financial Data Quarterly Financial Information [Table Text Block] Liability Class [Axis] Liability Class [Axis] Schedule Of Share Based Compensation Shares Authorized Under Stock Option Plans By Exercise Price Range [Table] Share-based Payment Arrangement, Option, Exercise Price Range [Table] Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] Original Equipment Manufacturer OEM [Member] OEM Derivative [Table] Derivative [Table] 4.375 Percent Senior Notes Due Twenty Thousand and Twenty Three 4.375 Percent Senior Notes Due Twenty Thousand and Twenty Three [Member] 4.375 Percent Senior Notes Due Twenty Thousand and Twenty Three [Member] Comprehensive income attributable to Wabtec shareholders Comprehensive income (loss) attributable to Wabtec shareholders Comprehensive Income (Loss), Net of Tax, Attributable to Parent Summary of Fair Value of Assets Acquired and Liabilities Assumed Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block] Other Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income Schedule of Defined Benefit Plan Amounts Recognized in Other Comprehensive Income (Loss) [Table Text Block] Number of reportable segments Number of Reportable Segments Equity Defined Benefit Plan, Equity Securities, Non US [Member] Defined Benefit Plan, Equity Securities, Non US Entity Registrant Name Entity Registrant Name 2022 Finance Lease, Liability, Payments, Due Year Three Treasury Stock Treasury Stock [Member] Net gain Unrealized Gain (Loss) on Derivatives Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax Provisional transition tax expense (benefit) Tax Cuts and Jobs Act, Transition Tax for Accumulated Foreign Earnings, Income Tax Expense (Benefit) Tax Cuts and Jobs Act, Transition Tax for Accumulated Foreign Earnings, Income Tax Expense (Benefit) Deferred income taxes Deferred Income Tax Liabilities, Net Mexico MEXICO Reclassifications Out of Accumulated Other Comprehensive Loss Reclassification out of Accumulated Other Comprehensive Income [Table Text Block] City Area Code City Area Code Granted Share Based Compensation Arrangement By Share Based Payment Award Options Granted Intrinsic Value Intrinsic value of granted options for the period presented. Costs Recognized Under Defined Contribution Plans and Multiemployer Pension Plans Schedule Of Defined Contribution Plans And Multiemployer Pension Plans Table [Table Text Block] Schedule of defined contribution plans and multiemployer pension plans. Litigation Case [Domain] Litigation Case [Domain] Proceeds from treasury stock issued from the exercise of stock options and other benefit plans, net of tax, shares (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. 2022 Long-term Debt, Maturities, Repayments of Principal in Year Three Options Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] Maximum borrowing capacity Maximum Availability Line of Credit Facility, Maximum Borrowing Capacity Corporate Activities and Elimination Corporate And Eliminations [Member] Corporate And Eliminations [Member] Interest rate increase Debt Instrument, Interest Rate, Increase (Decrease) PREFERRED STOCK Preferred Stock [Text Block] Purchase price per share (in euros per share) Business Acquisition, Share Price Quarterly repayment amount (as a percent) Debt Instrument, Periodic Payment, Percentage Debt Instrument, Periodic Payment, Percentage Schedule of Long-term Debt Schedule of Long-term Debt Instruments [Table Text Block] Percentage allocated to common shareholders (as a percent) Percentage Of Net Income Allocated To Common Shareholders Percentage allocated to common shareholders. 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Cash Flow Hedging Cash Flow Hedging [Member] Deferred pre-production costs Preproduction Costs Related to Long-term Supply Arrangements, Costs Capitalized Reclassification out of Accumulated Other Comprehensive Income Reclassification out of Accumulated Other Comprehensive Income [Member] Exercisable, end of period (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Property, plant and equipment Property, plant and equipment Property, Plant and Equipment, Gross Other Debt Obligations Other Debt Obligations [Member] Property, plant & equipment Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment Revenue Recognition and Shipping and Handling Fees and Costs Revenue from Contract with Customer [Policy Text Block] Foreign Exchange Contracts Foreign Exchange Contract [Member] Net gain (loss) arising during the year Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, after Tax Geographical [Domain] Geographical [Domain] Liabilities assumed Liabilities Assumed Other intangible assets Other Intangible Assets [Member] Property, Plant and Equipment [Abstract] Property, Plant and Equipment [Abstract] Hedging Designation [Axis] Hedging Designation [Axis] Treasury stock, shares (in shares) Treasury Stock, Shares Restricted Stock Restricted Stock [Member] Equity Award Award Type [Domain] Acquired intangible assets Other intangible assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill Derivative contracts Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member] Idaho Operating Engineers Employers Pension Trust Fund Idaho Operating Engineers Employers Pension Trust Fund [Member] Idaho operating engineers employers pension trust fund. Projected benefit obligation Defined Benefit Plan, Pension Plan with Accumulated Benefit Obligation in Excess of Plan Assets, Projected Benefit Obligation Accrued expenses and reserves Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Expenses And Reserves Accrued expenses and reserves component of deferred income tax asset. 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Right-of-use liability Deferred Tax Liabilities, Leasing Arrangements Non-controlling interest (acquired) assumed Noncontrolling Interest Assumed Noncontrolling Interest Assumed Total liabilities assumed Total liabilities assumed Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities Equity Defined Benefit Plan, Equity Securities, US [Member] Gross profit Business Acquisition Pro Forma Gross Profit The proforma gross profit for a period as if the business combination or combinations had been completed at the beginning of the period. SpinCo Common Stock SpinCo Common Stock [Member] SpinCo Common Stock [Member] Estimated Useful Lives of Property Plant and Equipment Schedule Of Estimated Useful Lives Of Property Plant And Equipment Table [Table Text Block] Schedule Of Estimated Useful Lives Of Property Plant And Equipment Table Annax GmbH Annax GmbH [Member] Annax GmbH [Member] 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 Current taxes Current Federal, State and Local, Tax Expense (Benefit) [Abstract] Stock price volatility (as a percent) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate Numerator for diluted earnings per common share Net Income (Loss) Available to Common Stockholders, Diluted Digital Electronics Digital Electronics [Member] Digital Electronics Maturity of Finance Lease Liabilities Finance Lease, Liability, Maturity [Table Text Block] LIBOR London Interbank Offered Rate (LIBOR) [Member] Schedule Of Finite Lived Intangible Assets [Table] Schedule of Finite-Lived Intangible Assets [Table] Components of Income from Operations before Provision for Income Taxes Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block] Indefinite-lived Intangible Assets, Major Class Name [Domain] Indefinite-lived Intangible Assets, Major Class Name [Domain] Total Liabilities Liabilities Intellectual Property Intellectual property Intellectual Property [Member] 2022 Defined Benefit Plan, Expected Future Benefit Payment, Year Three United States United States UNITED STATES Net income attributable to Wabtec shareholders (in dollars per share) Net income attributable to Wabtec shareholders, basic (in dollars per share) Basic earnings from operations per common share (in dollars per share) Earnings Per Share, Basic Product Warranties Disclosures [Abstract] 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(Decrease) [Roll Forward] Movement in Standard and Extended Product Warranty Accrual, Increase (Decrease) [Roll Forward] Amortization of net loss (gain) Accumulated Defined Benefit Plans Adjustment, Net Gain (Loss) Attributable to Parent [Member] Stock based compensation APIC, Share-based Payment Arrangement, Increase for Cost Recognition Net sales Revenues [Abstract] Net income attributable to Wabtec shareholders Business Acquisition, Pro Forma Net Income (Loss) Treasury stock, at cost, 35,247,987 and 35,734,588 shares, at December 31, 2019 and December 31, 2018, respectively Treasury Stock, Value Total Assets Segment assets Assets Schedule Of Revenues From External Customers And Long Lived Assets [Table] Schedule of Revenues from External Customers and Long-Lived Assets [Table] Estimated Amortization Expense Five Succeeding Years Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] Goodwill and Intangible Assets Goodwill and Intangible Assets, 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Siemens Industry, Inc. [Member] Siemens Industry, Inc. 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