$WAB
WESTINGHOUSE AIR BRAKE TECHNOLOGIES CORP Stock $wab

$wab Overview Financials Valuation SEC Filings Company Website

2021 Q4 Form 10-Q Financial Statement

#000162828021020615 Filed on October 27, 2021

Income Statement

Concept	2021 Q4	2021 Q3	2020 Q4
Revenue	$2.073B	$1.907B	$2.024B
YoY Change	2.42%	2.24%	-14.55%
Cost Of Revenue	$1.415B	$1.305B	$1.518B
YoY Change	-6.78%	0.44%	-10.35%
Gross Profit	$657.4M	$602.3M	$505.5M
YoY Change	30.05%	6.38%	-25.1%
Gross Profit Margin	31.72%	31.59%	24.98%
Selling, General & Admin	$267.5M	$269.0M	$205.2M
YoY Change	30.36%	6.45%	-35.69%
% of Gross Profit	40.69%	44.66%	40.59%
Research & Development	$52.50M	$43.80M	$38.40M
YoY Change	36.72%	20.0%	-35.57%
% of Gross Profit	7.99%	7.27%	7.6%
Depreciation & Amortization	$122.4M	$122.3M	$120.0M
YoY Change	2.0%	2.26%	7.05%
% of Gross Profit	18.62%	20.31%	23.74%
Operating Expenses	$392.3M	$385.3M	$314.4M
YoY Change	24.78%	7.18%	-29.22%
Operating Profit	$265.1M	$217.0M	$191.1M
YoY Change	38.72%	4.98%	-15.48%
Interest Expense	-$32.20M	-$42.50M	-$48.10M
YoY Change	-33.06%	-26.22%	-4.75%
% of Operating Profit	-12.15%	-19.59%	-25.17%
Other Income/Expense, Net	$2.900M	$500.0K	$5.300M
YoY Change	-45.28%	-96.5%	-688.89%
Pretax Income	$234.8M	$175.3M	$118.3M
YoY Change	98.48%	-0.06%	-32.28%
Income Tax	$41.50M	$43.50M	$31.50M
% Of Pretax Income	17.67%	24.81%	26.63%
Net Earnings	$190.2M	$130.6M	$87.90M
YoY Change	116.38%	1.95%	-35.22%
Net Earnings / Revenue	9.18%	6.85%	4.34%
Basic Earnings Per Share		$0.69
Diluted Earnings Per Share	$1.019M	$0.69	$463.1K
COMMON SHARES
Basic Shares Outstanding	186.8M shares	187.6M shares	190.3M shares
Diluted Shares Outstanding		188.0M shares

Balance Sheet

Concept	2021 Q4	2021 Q3	2020 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$473.0M	$456.4M	$599.0M
YoY Change	-21.04%	-18.35%	-0.83%
Cash & Equivalents	$473.0M	$456.4M	$599.0M
Short-Term Investments
Other Short-Term Assets	$193.0M	$247.1M	$227.0M
YoY Change	-14.98%	50.95%	50.43%
Inventory	$1.689B	$1.690B	$1.642B
Prepaid Expenses
Receivables	$1.085B	$960.3M	$969.0M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$3.832B	$3.760B	$3.880B
YoY Change	-1.24%	-4.47%	-7.44%
LONG-TERM ASSETS
Property, Plant & Equipment	$1.497B	$1.509B	$1.601B
YoY Change	-6.5%	-5.91%	-3.31%
Goodwill	$8.587B	$8.605B	$8.485B
YoY Change	1.2%	2.85%	1.48%
Intangibles	$4.340B	$4.427B	$4.520B
YoY Change	-3.98%	-2.0%	-4.39%
Long-Term Investments	$96.00M		$100.0M
YoY Change	-4.0%		5.04%
Other Assets	$833.0M	$698.3M	$619.0M
YoY Change	34.57%	7.63%	-2.01%
Total Long-Term Assets	$14.62B	$14.59B	$14.57B
YoY Change	0.33%	0.58%	-1.21%
TOTAL ASSETS
Total Short-Term Assets	$3.832B	$3.760B	$3.880B
Total Long-Term Assets	$14.62B	$14.59B	$14.57B
Total Assets	$18.45B	$18.35B	$18.45B
YoY Change	0.0%	-0.5%	-2.59%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$1.012B	$947.3M	$909.0M
YoY Change	11.33%	-1.53%	-21.47%
Accrued Expenses	$1.267B	$1.304B	$1.227B
YoY Change	3.26%	11.32%	-12.42%
Deferred Revenue	$629.0M	$556.9M	$643.0M
YoY Change	-2.18%	-13.11%	6.42%
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$2.000M	$3.800M	$447.0M
YoY Change	-99.55%	-99.16%	367.08%
Total Short-Term Liabilities	$2.910B	$2.812B	$3.226B
YoY Change	-9.8%	-12.92%	-0.98%
LONG-TERM LIABILITIES
Long-Term Debt	$4.056B	$4.067B	$3.792B
YoY Change	6.96%	7.03%	-12.5%
Other Long-Term Liabilities	$743.0M	$773.2M	$783.0M
YoY Change	-5.11%	-2.6%	-3.2%
Total Long-Term Liabilities	$4.799B	$4.840B	$4.575B
YoY Change	4.9%	5.37%	-11.04%
TOTAL LIABILITIES
Total Short-Term Liabilities	$2.910B	$2.812B	$3.226B
Total Long-Term Liabilities	$4.799B	$4.840B	$4.575B
Total Liabilities	$8.215B	$8.161B	$8.301B
YoY Change	-1.04%	-2.76%	-7.26%
SHAREHOLDERS EQUITY
Retained Earnings	$4.055B	$3.888B	$3.589B
YoY Change	12.98%	10.32%	9.86%
Common Stock	$7.918B	$7.908B	$7.883B
YoY Change	0.44%	0.3%	0.05%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$1.306B	$1.206B	$1.010B
YoY Change	29.31%	32.64%	25.14%
Treasury Stock Shares	41.10M shares	40.10M shares	38.00M shares
Shareholders Equity	$10.20B	$10.16B	$10.12B
YoY Change
Total Liabilities & Shareholders Equity	$18.45B	$18.35B	$18.45B
YoY Change	0.0%	-0.5%	-2.59%

Cashflow Statement

Concept	2021 Q4	2021 Q3	2020 Q4
OPERATING ACTIVITIES
Net Income	$190.2M	$130.6M	$87.90M
YoY Change	116.38%	1.95%	-35.22%
Depreciation, Depletion And Amortization	$122.4M	$122.3M	$120.0M
YoY Change	2.0%	2.26%	7.05%
Cash From Operating Activities	$313.7M	$243.9M	$325.6M
YoY Change	-3.65%	6.27%	-27.29%
INVESTING ACTIVITIES
Capital Expenditures	-$51.50M	-$23.00M	-$37.70M
YoY Change	36.6%	-26.05%	-48.14%
Acquisitions
YoY Change
Other Investing Activities	-$13.20M	$100.0K	$2.200M
YoY Change	-700.0%	-98.94%	-53.19%
Cash From Investing Activities	-$64.70M	-$22.90M	-$35.50M
YoY Change	82.25%	5.53%	-47.79%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-219.7M	-220.8M	-258.2M
YoY Change	-14.91%	-6.95%	-27.39%
NET CHANGE
Cash From Operating Activities	313.7M	243.9M	325.6M
Cash From Investing Activities	-64.70M	-22.90M	-35.50M
Cash From Financing Activities	-219.7M	-220.8M	-258.2M
Net Change In Cash	29.30M	200.0K	31.90M
YoY Change	-8.15%	-100.68%	31.82%
FREE CASH FLOW
Cash From Operating Activities	$313.7M	$243.9M	$325.6M
Capital Expenditures	-$51.50M	-$23.00M	-$37.70M
Free Cash Flow	$365.2M	$266.9M	$363.3M
YoY Change	0.52%	2.42%	-30.2%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	dei	Amendment Flag AmendmentFlag	false
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2021
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q3
	dei	Entity Central Index Key EntityCentralIndexKey	0000943452
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
	dei	Document Type DocumentType	10-Q
	dei	Document Quarterly Report DocumentQuarterlyReport	true
	dei	Document Period End Date DocumentPeriodEndDate	2021-09-30
	dei	Document Transition Report DocumentTransitionReport	false
	dei	Entity File Number EntityFileNumber	033-90866
	dei	Entity Registrant Name EntityRegistrantName	WESTINGHOUSE AIR BRAKE TECHNOLOGIESCORP
	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	25-1615902
	dei	Entity Address Address Line1 EntityAddressAddressLine1	30 Isabella Street
	dei	Entity Address City Or Town EntityAddressCityOrTown	Pittsburgh
	dei	Entity Address State Or Province EntityAddressStateOrProvince	PA
	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	15212
	dei	City Area Code CityAreaCode	412
	dei	Local Phone Number LocalPhoneNumber	825-1000
	dei	Security12b Title Security12bTitle	Common Stock, $.01 par value per share
	dei	Trading Symbol TradingSymbol	WAB
	dei	Security Exchange Name SecurityExchangeName	NYSE
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	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
	dei	Entity Small Business EntitySmallBusiness	false
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	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.95
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.71
CY2021Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	187600000	shares
CY2020Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	189800000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	188200000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	190100000	shares
CY2021Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	188000000.0	shares
CY2020Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	190200000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	188600000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	190600000	shares
CY2021Q3	us-gaap	Net Income Loss NetIncomeLoss	130600000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	128100000	USD
	us-gaap	Net Income Loss NetIncomeLoss	367800000	USD
	us-gaap	Net Income Loss NetIncomeLoss	326500000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	500000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	-59900000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	53800000	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	-87800000	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	-98400000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax	-400000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax	2800000	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax	-7800000	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax	1800000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	-4400000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	600000	USD
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	0	USD
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	3500000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Before Tax Portion Attributable To Parent OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent	-55900000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Before Tax Portion Attributable To Parent OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent	56000000.0	USD
	us-gaap	Other Comprehensive Income Loss Before Tax Portion Attributable To Parent OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent	-95600000	USD
	us-gaap	Other Comprehensive Income Loss Before Tax Portion Attributable To Parent OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent	-100100000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	900000	USD
	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	-2100000	USD
	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	-400000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-56800000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	55500000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-93500000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-99700000	USD
CY2021Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	73800000	USD
CY2020Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	183600000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	274300000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	226800000	USD
	us-gaap	Profit Loss ProfitLoss	371700000	USD
	us-gaap	Profit Loss ProfitLoss	325500000	USD
	us-gaap	Depreciation And Amortization DepreciationAndAmortization	368600000	USD
	us-gaap	Depreciation And Amortization DepreciationAndAmortization	353300000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	34200000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	17600000	USD
	wab	Amortization Of Intangible Liability AmortizationOfIntangibleLiability	36200000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	78500000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	98700000	USD
	wab	Amortization Of Intangible Liability AmortizationOfIntangibleLiability	67900000	USD
	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	-7100000	USD
	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	-3000000.0	USD
	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-34900000	USD
	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-245200000	USD
	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	32300000	USD
	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-7800000	USD
	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	41100000	USD
	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-203400000	USD
	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	28900000	USD
	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	17900000	USD
	wab	Increase Decrease In Accrued Liabilities And Customer Deposits IncreaseDecreaseInAccruedLiabilitiesAndCustomerDeposits	-11000000.0	USD
	wab	Increase Decrease In Accrued Liabilities And Customer Deposits IncreaseDecreaseInAccruedLiabilitiesAndCustomerDeposits	-76300000	USD
	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	47700000	USD
	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	164600000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	759300000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	458100000	USD
	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	19100000	USD
	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	8300000	USD
	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	405100000	USD
	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	40300000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-475300000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-119900000	USD
	us-gaap	Proceeds From Issuance Of Long Term Debt And Capital Securities Net ProceedsFromIssuanceOfLongTermDebtAndCapitalSecuritiesNet	4328600000	USD
	us-gaap	Proceeds From Issuance Of Long Term Debt And Capital Securities Net ProceedsFromIssuanceOfLongTermDebtAndCapitalSecuritiesNet	2936000000	USD
	us-gaap	Repayments Of Long Term Debt And Capital Securities RepaymentsOfLongTermDebtAndCapitalSecurities	4491300000	USD
	us-gaap	Repayments Of Long Term Debt And Capital Securities RepaymentsOfLongTermDebtAndCapitalSecurities	3117100000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	200300000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	105300000	USD
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	68900000	USD
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	69200000	USD
	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-1400000	USD
	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-5200000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-433300000	USD
CY2021Q1	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	1200000	USD
CY2021Q1	us-gaap	Stockholders Equity Other StockholdersEquityOther	-300000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-360800000	USD
	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	7000000.0	USD
	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-22300000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-142300000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-44900000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	598700000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	604200000	USD
CY2021Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	456400000	USD
CY2020Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	559300000	USD
CY2020Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	10152700000	USD
CY2021Q1	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.12
CY2021Q1	us-gaap	Dividends Cash DividendsCash	23000000.0	USD
CY2021Q1	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	-5200000	USD
CY2021Q1	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	8700000	USD
CY2021Q1	us-gaap	Profit Loss ProfitLoss	114700000	USD
CY2021Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-69900000	USD
CY2021Q2	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	1400000	USD
CY2021Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	10177100000	USD
CY2021Q2	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.12
CY2021Q2	us-gaap	Dividends Cash DividendsCash	23000000.0	USD
CY2021Q2	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	13900000	USD
CY2021Q2	us-gaap	Profit Loss ProfitLoss	125200000	USD
CY2021Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	33200000	USD
CY2021Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	10327800000	USD
CY2021Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.12
CY2021Q3	us-gaap	Dividends Cash DividendsCash	22900000	USD
CY2021Q3	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	2300000	USD
CY2021Q3	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	8100000	USD
CY2021Q3	us-gaap	Profit Loss ProfitLoss	131800000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-56800000	USD
CY2021Q3	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	199100000	USD
CY2021Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	10191200000	USD
CY2020Q1	us-gaap	Dividends Cash DividendsCash	23000000.0	USD
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	9993600000	USD
CY2020Q1	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.12
CY2020Q1	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	-5700000	USD
CY2020Q1	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	10000000.0	USD
CY2020Q1	us-gaap	Profit Loss ProfitLoss	111200000	USD
CY2020Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-178000000.0	USD
CY2020Q1	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	105300000	USD
CY2020Q1	us-gaap	Stockholders Equity Other StockholdersEquityOther	5100000	USD
CY2020Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	9797700000	USD
CY2020Q2	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.12
CY2020Q2	us-gaap	Dividends Cash DividendsCash	23400000	USD
CY2020Q2	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	300000	USD
CY2020Q2	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	-2700000	USD
CY2020Q2	us-gaap	Profit Loss ProfitLoss	85800000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	22800000	USD
CY2020Q2	us-gaap	Stockholders Equity Other StockholdersEquityOther	-100000	USD
CY2020Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	9880600000	USD
CY2020Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.12
CY2020Q3	us-gaap	Dividends Cash DividendsCash	22800000	USD
CY2020Q3	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	300000	USD
CY2020Q3	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	10200000	USD
CY2020Q3	us-gaap	Profit Loss ProfitLoss	128500000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	55600000	USD
CY2020Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	10052400000	USD
	us-gaap	Nature Of Operations NatureOfOperations	BUSINESS Westinghouse Air Brake Technologies Corporation (“Wabtec” or the "Company") 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. Many of 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 the first nine months of 2021, approximately 58% of the Company’s revenues came from customers outside the United States.
CY2021Q3	us-gaap	Number Of Countries In Which Entity Operates NumberOfCountriesInWhichEntityOperates	50	country
	wab	Number Of Countries Where Product Found NumberOfCountriesWhereProductFound	100	country
CY2020Q3	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	300000	USD
	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	400000	USD
	us-gaap	Use Of Estimates UseOfEstimates	Use of Estimates The preparation of financial statements in conformity with GAAP 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 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.
CY2021Q3	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	21100000000	USD
CY2021Q3	us-gaap	Revenue Remaining Performance Obligation Percentage RevenueRemainingPerformanceObligationPercentage	0.25
CY2021Q3	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P12M
CY2020Q2	wab	Accounts Receivable After Allowance For Credit Loss Maximum Recurring Transfer AccountsReceivableAfterAllowanceForCreditLossMaximumRecurringTransfer	150000000	USD
CY2020Q2	wab	Accounts Receivable After Allowance For Credit Loss Maximum Recurring Transfer AccountsReceivableAfterAllowanceForCreditLossMaximumRecurringTransfer	150000000	USD
CY2021Q1	wab	Accounts Receivable After Allowance For Credit Loss Maximum Recurring Transfer AccountsReceivableAfterAllowanceForCreditLossMaximumRecurringTransfer	200000000	USD
	us-gaap	Proceeds From Accounts Receivable Securitization ProceedsFromAccountsReceivableSecuritization	583000000.0	USD
	us-gaap	Proceeds From Accounts Receivable Securitization ProceedsFromAccountsReceivableSecuritization	959100000	USD
	us-gaap	Repayments Of Accounts Receivable Securitization RepaymentsOfAccountsReceivableSecuritization	874900000	USD
	us-gaap	Repayments Of Accounts Receivable Securitization RepaymentsOfAccountsReceivableSecuritization	485500000	USD
	us-gaap	Proceeds From Repayments Of Accounts Receivable Securitization ProceedsFromRepaymentsOfAccountsReceivableSecuritization	84200000	USD
	us-gaap	Proceeds From Repayments Of Accounts Receivable Securitization ProceedsFromRepaymentsOfAccountsReceivableSecuritization	97500000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	-57500000	USD
CY2021Q3	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-700000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-56800000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	54900000	USD
CY2020Q3	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-700000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	55600000	USD
	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	-95700000	USD
	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-2200000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-93500000	USD
	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	-101800000	USD
	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-2200000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-99600000	USD
CY2020Q4	us-gaap	Inventory Net InventoryNet	1642100000	USD
CY2021Q3	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	725500000	USD
CY2020Q4	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	669400000	USD
CY2021Q3	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	342000000.0	USD
CY2020Q4	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	339400000	USD
CY2021Q3	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	622100000	USD
CY2020Q4	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	633300000	USD
CY2021Q3	us-gaap	Inventory Net InventoryNet	1689600000	USD
	wab	Contract With Customer Liability New Contract Additions ContractWithCustomerLiabilityNewContractAdditions	477000000.0	USD
CY2020Q4	us-gaap	Goodwill Goodwill	8485200000	USD
	us-gaap	Goodwill Purchase Accounting Adjustments GoodwillPurchaseAccountingAdjustments	214100000	USD
	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	-94600000	USD
CY2021Q3	us-gaap	Goodwill Goodwill	8604700000	USD
CY2021Q3	us-gaap	Indefinite Lived Trademarks IndefiniteLivedTrademarks	646900000	USD
CY2020Q4	us-gaap	Indefinite Lived Trademarks IndefiniteLivedTrademarks	650700000	USD
CY2021Q3	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	3132900000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	3218500000	USD
CY2021Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	72500000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	214700000	USD
CY2020Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	70300000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	211600000	USD
CY2021Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Remainder Of Fiscal Year FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear	72900000	USD
CY2021Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	290200000	USD
CY2021Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	289500000	USD
CY2021Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	280000000.0	USD
CY2021Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	277400000	USD
CY2021Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	273600000	USD
CY2021Q3	us-gaap	Contract With Customer Asset Net Noncurrent ContractWithCustomerAssetNetNoncurrent	149400000	USD
CY2020Q4	us-gaap	Contract With Customer Asset Net Noncurrent ContractWithCustomerAssetNetNoncurrent	101000000	USD
CY2021Q3	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	83100000	USD
CY2020Q4	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	79600000	USD
CY2021Q3	us-gaap	Provision For Loss On Contracts ProvisionForLossOnContracts	119800000	USD
CY2020Q4	us-gaap	Provision For Loss On Contracts ProvisionForLossOnContracts	108900000	USD
CY2020Q4	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	544200000	USD
CY2019Q4	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	623400000	USD
	us-gaap	Contract With Customer Asset Increase Decrease For Contract Acquired In Business Combination ContractWithCustomerAssetIncreaseDecreaseForContractAcquiredInBusinessCombination	0	USD
	us-gaap	Contract With Customer Asset Increase Decrease For Contract Acquired In Business Combination ContractWithCustomerAssetIncreaseDecreaseForContractAcquiredInBusinessCombination	4100000	USD
	wab	Contract With Customer Asset New Contract Additions ContractWithCustomerAssetNewContractAdditions	441600000	USD
	wab	Contract With Customer Asset New Contract Additions ContractWithCustomerAssetNewContractAdditions	759200000	USD
	us-gaap	Contract With Customer Asset Reclassified To Receivable ContractWithCustomerAssetReclassifiedToReceivable	423500000	USD
	us-gaap	Contract With Customer Asset Reclassified To Receivable ContractWithCustomerAssetReclassifiedToReceivable	868700000	USD
	wab	Contract With Customer Asset Increase Decrease Foreign Currency Translation Adjustment ContractWithCustomerAssetIncreaseDecreaseForeignCurrencyTranslationAdjustment	-6200000	USD
	wab	Contract With Customer Asset Increase Decrease Foreign Currency Translation Adjustment ContractWithCustomerAssetIncreaseDecreaseForeignCurrencyTranslationAdjustment	-700000	USD
CY2021Q3	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	556100000	USD
CY2020Q3	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	517300000	USD
CY2020Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	831200000	USD
CY2019Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	799700000	USD
	us-gaap	Contract With Customer Liability Increase Decrease For Contract Acquired In Business Combination ContractWithCustomerLiabilityIncreaseDecreaseForContractAcquiredInBusinessCombination	1700000	USD
	us-gaap	Contract With Customer Liability Increase Decrease For Contract Acquired In Business Combination ContractWithCustomerLiabilityIncreaseDecreaseForContractAcquiredInBusinessCombination	6900000	USD
	wab	Contract With Customer Liability New Contract Additions ContractWithCustomerLiabilityNewContractAdditions	589100000	USD
	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	387200000	USD
	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	430000000.0	USD
	wab	Contractwith Customer Liability Revenue Recognizedfrom Current Year Additions ContractwithCustomerLiabilityRevenueRecognizedfromCurrentYearAdditions	154300000	USD
	wab	Contractwith Customer Liability Revenue Recognizedfrom Current Year Additions ContractwithCustomerLiabilityRevenueRecognizedfromCurrentYearAdditions	152600000	USD
	wab	Contractwith Customer Liability Increase Decrease Foreign Currency Translation Adjustment ContractwithCustomerLiabilityIncreaseDecreaseForeignCurrencyTranslationAdjustment	-8600000	USD
	wab	Contractwith Customer Liability Increase Decrease Foreign Currency Translation Adjustment ContractwithCustomerLiabilityIncreaseDecreaseForeignCurrencyTranslationAdjustment	-3300000	USD
CY2021Q3	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	759800000	USD
CY2020Q3	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	809800000	USD
CY2021Q3	us-gaap	Operating Lease Cost OperatingLeaseCost	15300000	USD
CY2020Q3	us-gaap	Operating Lease Cost OperatingLeaseCost	14100000	USD
	us-gaap	Operating Lease Cost OperatingLeaseCost	43800000	USD
	us-gaap	Operating Lease Cost OperatingLeaseCost	42900000	USD
CY2021Q3	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	200000	USD
	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	900000	USD
CY2021Q3	wab	Shortterm And Variable Lease Cost ShorttermAndVariableLeaseCost	100000	USD
CY2020Q3	wab	Shortterm And Variable Lease Cost ShorttermAndVariableLeaseCost	0	USD
	wab	Shortterm And Variable Lease Cost ShorttermAndVariableLeaseCost	400000	USD
	wab	Shortterm And Variable Lease Cost ShorttermAndVariableLeaseCost	100000	USD
CY2021Q3	us-gaap	Sublease Income SubleaseIncome	100000	USD
CY2020Q3	us-gaap	Sublease Income SubleaseIncome	100000	USD
	us-gaap	Sublease Income SubleaseIncome	300000	USD
	us-gaap	Sublease Income SubleaseIncome	300000	USD
CY2021Q3	us-gaap	Lease Cost LeaseCost	15500000	USD
CY2020Q3	us-gaap	Lease Cost LeaseCost	14300000	USD
	us-gaap	Lease Cost LeaseCost	44300000	USD
	us-gaap	Lease Cost LeaseCost	43600000	USD
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.260
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Remainder Of Fiscal Year LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear	15400000	USD
CY2021Q3	us-gaap	Finance Lease Liability Payments Remainder Of Fiscal Year FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear	200000	USD
CY2021Q3	wab	Lessee Operating And Finance Lease Liability Total Payments Remainderof Fiscal Year LesseeOperatingAndFinanceLeaseLiabilityTotalPaymentsRemainderofFiscalYear	15600000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	58100000	USD
CY2021Q3	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	800000	USD
CY2021Q3	wab	Lessee Operating And Finance Lease Liability To Be Paid Year One LesseeOperatingAndFinanceLeaseLiabilityToBePaidYearOne	58900000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	51900000	USD
CY2021Q3	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	500000	USD
CY2021Q3	wab	Lessee Operating And Finance Lease Liability Total Payments Due Year Two LesseeOperatingAndFinanceLeaseLiabilityTotalPaymentsDueYearTwo	52400000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	46900000	USD
CY2021Q3	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	300000	USD
CY2021Q3	wab	Lessee Operating And Finance Lease Liability Total Payments Due Year Three LesseeOperatingAndFinanceLeaseLiabilityTotalPaymentsDueYearThree	47200000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	40300000	USD
CY2021Q3	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	200000	USD
CY2021Q3	wab	Lessee Operating And Finance Lease Liability Total Payments Due Year Four LesseeOperatingAndFinanceLeaseLiabilityTotalPaymentsDueYearFour	40500000	USD
CY2021Q3	wab	Lessee Operating Lease Liability Payments Due After Year Four LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour	148100000	USD
CY2021Q3	wab	Finance Lease Liability Payments Due After Year Four FinanceLeaseLiabilityPaymentsDueAfterYearFour	100000	USD
CY2021Q3	wab	Lessee Operating And Finance Lease Liability Total Payments Due After Year Four LesseeOperatingAndFinanceLeaseLiabilityTotalPaymentsDueAfterYearFour	148200000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	360700000	USD
CY2021Q3	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	2100000	USD
CY2021Q3	wab	Lessee Operating And Finance Lease Liability Payments Due LesseeOperatingAndFinanceLeaseLiabilityPaymentsDue	362800000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	29200000	USD
CY2021Q3	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	0	USD
CY2021Q3	wab	Lessee Operating And Finance Lease Liability Undiscounted Excess Amount LesseeOperatingAndFinanceLeaseLiabilityUndiscountedExcessAmount	29200000	USD
CY2021Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	331500000	USD
CY2021Q3	us-gaap	Finance Lease Liability FinanceLeaseLiability	2100000	USD
CY2021Q3	wab	Operating And Finance Lease Liability OperatingAndFinanceLeaseLiability	333600000	USD
CY2021Q3	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P8Y1M6D
CY2020Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P7Y4M24D
CY2021Q3	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P3Y6M
CY2020Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P4Y6M
CY2021Q3	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.024
CY2020Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.027
CY2021Q3	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.014
CY2020Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.014
CY2021Q3	us-gaap	Long Term Debt LongTermDebt	4071000000	USD
CY2020Q4	us-gaap	Long Term Debt LongTermDebt	4239400000	USD
CY2021Q3	us-gaap	Long Term Debt Current LongTermDebtCurrent	3800000	USD
CY2020Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	447200000	USD
CY2021Q3	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	4067200000	USD
CY2020Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	3792200000	USD
CY2021Q3	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	24300000	USD
CY2020Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	20500000	USD
CY2021Q3	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	10000000	USD
CY2020Q3	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	12000000	USD
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	34200000	USD
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	17600000	USD
CY2021Q3	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	44100000	USD
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	552669	shares
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	69.82
CY2020	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P6Y1M6D
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	4200000	USD
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	126794	shares
	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	81.21
	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	74343	shares
	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	52.13
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	26037	shares
	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	74.73
CY2021Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	579083	shares
CY2021Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	73.11
	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P6Y3M18D
CY2021Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	9000000.0	USD
CY2021Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	336940	shares
CY2021Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	58.96
	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P5Y8M12D
CY2021Q3	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	9400000	USD
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.0060
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0081
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.361
	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P5Y
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	73.80
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	81.38
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue	71.52
	wab	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Net Performance Adjustment Weighted Average Net Performance Adjustment Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNetPerformanceAdjustmentWeightedAverageNetPerformanceAdjustmentFairValue	74.32
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeitures Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue	76.10
CY2021Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	77.63
CY2021Q3	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.248
CY2020Q3	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.267
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.258
CY2021Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	14900000	USD
CY2021Q3	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	13300000	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	16400000	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	14800000	USD
CY2021Q3	us-gaap	Significant Change In Unrecognized Tax Benefits Is Reasonably Possible Amount Of Unrecorded Benefit SignificantChangeInUnrecognizedTaxBenefitsIsReasonablyPossibleAmountOfUnrecordedBenefit	6600000	USD
CY2021Q3	us-gaap	Net Income Loss NetIncomeLoss	130600000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	128100000	USD
CY2021Q3	us-gaap	Dividends Common Stock Stock DividendsCommonStockStock	22600000	USD
CY2020Q3	us-gaap	Dividends Common Stock Stock DividendsCommonStockStock	22800000	USD
CY2021Q3	us-gaap	Undistributed Earnings UndistributedEarnings	108000000.0	USD
CY2020Q3	us-gaap	Undistributed Earnings UndistributedEarnings	105300000	USD
CY2021Q3	wab	Percentage Of Net Income Allocated To Common Shareholders PercentageOfNetIncomeAllocatedToCommonShareholders	0.998
CY2020Q3	wab	Percentage Of Net Income Allocated To Common Shareholders PercentageOfNetIncomeAllocatedToCommonShareholders	0.998
CY2021Q3	wab	Undistributed Earnings Allocated To Common Shareholders UndistributedEarningsAllocatedToCommonShareholders	107800000	USD
CY2020Q3	wab	Undistributed Earnings Allocated To Common Shareholders UndistributedEarningsAllocatedToCommonShareholders	105100000	USD
CY2021Q3	wab	Dividends Declared Common Shares DividendsDeclaredCommonShares	22600000	USD
CY2020Q3	wab	Dividends Declared Common Shares DividendsDeclaredCommonShares	22800000	USD
CY2021Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	130400000	USD
CY2020Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	127900000	USD
CY2021Q3	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	130400000	USD
CY2020Q3	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	127900000	USD
CY2021Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	187600000	shares
CY2020Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	189800000	shares
CY2021Q3	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	400000	shares
CY2020Q3	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	400000	shares
CY2021Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	188000000.0	shares
CY2020Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	190200000	shares
CY2021Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.69
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.67
CY2021Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.69
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.67
CY2021Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	187600000	shares
CY2020Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	189800000	shares
CY2021Q3	wab	Basic Weighted Average Common Shares Outstanding And Non Vested Restricted Stock Expected To Vest BasicWeightedAverageCommonSharesOutstandingAndNonVestedRestrictedStockExpectedToVest	188000000.0	shares
CY2020Q3	wab	Basic Weighted Average Common Shares Outstanding And Non Vested Restricted Stock Expected To Vest BasicWeightedAverageCommonSharesOutstandingAndNonVestedRestrictedStockExpectedToVest	190300000	shares
CY2021Q3	wab	Percentage Of Net Income Allocated To Common Shareholders PercentageOfNetIncomeAllocatedToCommonShareholders	0.998
CY2020Q3	wab	Percentage Of Net Income Allocated To Common Shareholders PercentageOfNetIncomeAllocatedToCommonShareholders	0.998
	us-gaap	Net Income Loss NetIncomeLoss	367800000	USD
	us-gaap	Net Income Loss NetIncomeLoss	326500000	USD
	us-gaap	Dividends Common Stock Stock DividendsCommonStockStock	68000000.0	USD
	us-gaap	Dividends Common Stock Stock DividendsCommonStockStock	68700000	USD
	us-gaap	Undistributed Earnings UndistributedEarnings	299800000	USD
	us-gaap	Undistributed Earnings UndistributedEarnings	257800000	USD
	wab	Percentage Of Net Income Allocated To Common Shareholders PercentageOfNetIncomeAllocatedToCommonShareholders	0.998
	wab	Percentage Of Net Income Allocated To Common Shareholders PercentageOfNetIncomeAllocatedToCommonShareholders	0.997
	wab	Undistributed Earnings Allocated To Common Shareholders UndistributedEarningsAllocatedToCommonShareholders	299200000	USD
	wab	Undistributed Earnings Allocated To Common Shareholders UndistributedEarningsAllocatedToCommonShareholders	257000000.0	USD
	wab	Dividends Declared Common Shares DividendsDeclaredCommonShares	68500000	USD
	wab	Dividends Declared Common Shares DividendsDeclaredCommonShares	67900000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	367100000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	325500000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	367100000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	325500000	USD
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	188200000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	190100000	shares
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	400000	shares
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	500000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	188600000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	190600000	shares
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.95
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.71
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.95
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.71
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	188200000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	190100000	shares
	wab	Basic Weighted Average Common Shares Outstanding And Non Vested Restricted Stock Expected To Vest BasicWeightedAverageCommonSharesOutstandingAndNonVestedRestrictedStockExpectedToVest	188600000	shares
	wab	Basic Weighted Average Common Shares Outstanding And Non Vested Restricted Stock Expected To Vest BasicWeightedAverageCommonSharesOutstandingAndNonVestedRestrictedStockExpectedToVest	190600000	shares
	wab	Percentage Of Net Income Allocated To Common Shareholders PercentageOfNetIncomeAllocatedToCommonShareholders	0.998
	wab	Percentage Of Net Income Allocated To Common Shareholders PercentageOfNetIncomeAllocatedToCommonShareholders	0.997
	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	100000	shares
CY2021Q3	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	100000	shares
CY2020Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	278500000	USD
CY2019Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	267700000	USD
	us-gaap	Product Warranty Accrual Additions From Business Acquisition ProductWarrantyAccrualAdditionsFromBusinessAcquisition	1700000	USD
	us-gaap	Product Warranty Accrual Additions From Business Acquisition ProductWarrantyAccrualAdditionsFromBusinessAcquisition	4300000	USD
	us-gaap	Product Warranty Accrual Warranties Issued ProductWarrantyAccrualWarrantiesIssued	84700000	USD
	us-gaap	Product Warranty Accrual Warranties Issued ProductWarrantyAccrualWarrantiesIssued	86800000	USD
	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	84500000	USD
	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	95700000	USD
	us-gaap	Standard And Extended Product Warranty Accrual Foreign Currency Translation Gain Loss StandardAndExtendedProductWarrantyAccrualForeignCurrencyTranslationGainLoss	8400000	USD
	us-gaap	Standard And Extended Product Warranty Accrual Foreign Currency Translation Gain Loss StandardAndExtendedProductWarrantyAccrualForeignCurrencyTranslationGainLoss	-1700000	USD
CY2021Q3	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	272000000.0	USD
CY2020Q3	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	264800000	USD
CY2021Q3	us-gaap	Business Combination Contingent Consideration Liability Noncurrent BusinessCombinationContingentConsiderationLiabilityNoncurrent	219800000	USD
	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	2	segment
CY2021Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1906900000	USD
CY2021Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1906900000	USD
CY2021Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	217000000.0	USD
CY2021Q3	wab	Interest Expense And Other Net InterestExpenseAndOtherNet	41700000	USD
CY2021Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	175300000	USD
CY2020Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1865100000	USD
CY2020Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1865100000	USD
CY2020Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	206700000	USD
CY2020Q3	wab	Interest Expense And Other Net InterestExpenseAndOtherNet	31300000	USD
CY2020Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	175400000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	5749400000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	5749400000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	611900000	USD
	wab	Interest Expense And Other Net InterestExpenseAndOtherNet	109700000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	502200000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	5532400000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	5532400000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	583400000	USD
	wab	Interest Expense And Other Net InterestExpenseAndOtherNet	144500000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	438900000	USD
CY2021Q3	us-gaap	Foreign Currency Transaction Gain Loss Realized ForeignCurrencyTransactionGainLossRealized	-3500000	USD
CY2020Q3	us-gaap	Foreign Currency Transaction Gain Loss Realized ForeignCurrencyTransactionGainLossRealized	6400000	USD
	us-gaap	Foreign Currency Transaction Gain Loss Realized ForeignCurrencyTransactionGainLossRealized	7400000	USD
	us-gaap	Foreign Currency Transaction Gain Loss Realized ForeignCurrencyTransactionGainLossRealized	-7700000	USD
CY2021Q3	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	3200000	USD
CY2020Q3	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	5600000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	10500000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	6700000	USD
CY2021Q3	wab	Periodic Defined Benefits Expense Reversalof Expense Excluding Interest Cost And Service Cost Component PeriodicDefinedBenefitsExpenseReversalofExpenseExcludingInterestCostAndServiceCostComponent	1900000	USD
CY2020Q3	wab	Periodic Defined Benefits Expense Reversalof Expense Excluding Interest Cost And Service Cost Component PeriodicDefinedBenefitsExpenseReversalofExpenseExcludingInterestCostAndServiceCostComponent	2500000	USD
	wab	Periodic Defined Benefits Expense Reversalof Expense Excluding Interest Cost And Service Cost Component PeriodicDefinedBenefitsExpenseReversalofExpenseExcludingInterestCostAndServiceCostComponent	7300000	USD
	wab	Periodic Defined Benefits Expense Reversalof Expense Excluding Interest Cost And Service Cost Component PeriodicDefinedBenefitsExpenseReversalofExpenseExcludingInterestCostAndServiceCostComponent	7200000	USD
CY2021Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-1100000	USD
CY2020Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-200000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-200000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-400000	USD
CY2021Q3	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	500000	USD
CY2020Q3	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	14300000	USD
	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	25000000.0	USD
	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	5800000	USD

Files In Submission

Name	View Source	Status
0001628280-21-020615-index-headers.html	Edgar Link	pending
0001628280-21-020615-index.html	Edgar Link	pending
0001628280-21-020615.txt	Edgar Link	pending
0001628280-21-020615-xbrl.zip	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
R1.htm	Edgar Link	pending
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report.css	Edgar Link	pending
Show.js	Edgar Link	pending
wab-20210930.htm	Edgar Link	pending
wab-20210930.xsd	Edgar Link	pending
wab-20210930_cal.xml	Edgar Link	unprocessable
wab-20210930_def.xml	Edgar Link	unprocessable
wab-20210930_htm.xml	Edgar Link	completed
wab-20210930_lab.xml	Edgar Link	unprocessable
wab-20210930_pre.xml	Edgar Link	unprocessable
wabex101q32021.htm	Edgar Link	pending
wabex102q32021.htm	Edgar Link	pending
wabex221q32021.htm	Edgar Link	pending
wabex311q32021.htm	Edgar Link	pending
wabex312q32021.htm	Edgar Link	pending
wabex321q32021.htm	Edgar Link	pending

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$WAB
WESTINGHOUSE AIR BRAKE TECHNOLOGIES CORP Stock $wab

2021 Q4 Form 10-Q Financial Statement

#000162828021020615 Filed on October 27, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$WAB WESTINGHOUSE AIR BRAKE TECHNOLOGIES CORP Stock $wab

2021 Q4 Form 10-Q Financial Statement

#000162828021020615 Filed on October 27, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$WAB
WESTINGHOUSE AIR BRAKE TECHNOLOGIES CORP Stock $wab