$WAB
WESTINGHOUSE AIR BRAKE TECHNOLOGIES CORP Stock $wab

$wab Overview Financials Valuation SEC Filings Company Website

2020 Q4 Form 10-Q Financial Statement

#000162828020015066 Filed on October 29, 2020

Income Statement

Concept	2020 Q4	2020 Q3	2019 Q4
Revenue	$2.024B	$1.865B	$2.368B
YoY Change	-14.55%	-6.82%	111.88%
Cost Of Revenue	$1.518B	$1.299B	$1.694B
YoY Change	-10.35%	-7.37%	106.3%
Gross Profit	$505.5M	$566.2M	$674.9M
YoY Change	-25.1%	-5.54%	127.24%
Gross Profit Margin	24.98%	30.36%	28.5%
Selling, General & Admin	$205.2M	$252.7M	$319.1M
YoY Change	-35.69%	-13.52%	89.94%
% of Gross Profit	40.59%	44.63%	47.28%
Research & Development	$38.40M	$36.50M	$59.60M
YoY Change	-35.57%	-37.71%	130.12%
% of Gross Profit	7.6%	6.45%	8.83%
Depreciation & Amortization	$120.0M	$119.6M	$112.1M
YoY Change	7.05%	-3.7%	326.24%
% of Gross Profit	23.74%	21.12%	16.61%
Operating Expenses	$314.4M	$359.5M	$444.2M
YoY Change	-29.22%	-16.45%	118.28%
Operating Profit	$191.1M	$206.7M	$226.1M
YoY Change	-15.48%	22.24%	142.08%
Interest Expense	-$48.10M	-$57.60M	-$50.50M
YoY Change	-4.75%	-2.54%	39.5%
% of Operating Profit	-25.17%	-27.87%	-22.34%
Other Income/Expense, Net	$5.300M	$14.30M	-$900.0K
YoY Change	-688.89%	652.63%	-400.0%
Pretax Income	$118.3M	$175.4M	$174.7M
YoY Change	-32.28%	54.81%	203.3%
Income Tax	$31.50M	$46.90M	$37.70M
% Of Pretax Income	26.63%	26.74%	21.58%
Net Earnings	$87.90M	$128.1M	$135.7M
YoY Change	-35.22%	40.61%	294.48%
Net Earnings / Revenue	4.34%	6.87%	5.73%
Basic Earnings Per Share		$0.67	$0.71
Diluted Earnings Per Share	$463.1K	$0.67	$0.71
COMMON SHARES
Basic Shares Outstanding	190.3M shares	189.8M shares	191.7M shares
Diluted Shares Outstanding		190.2M shares

Balance Sheet

Concept	2020 Q4	2020 Q3	2019 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$599.0M	$559.0M	$604.0M
YoY Change	-0.83%	-4.77%	3.96%
Cash & Equivalents	$599.0M	$559.3M	$604.2M
Short-Term Investments
Other Short-Term Assets	$227.0M	$163.7M	$150.9M
YoY Change	50.43%	-14.92%	30.54%
Inventory	$1.642B	$1.780B	$1.773B
Prepaid Expenses
Receivables	$969.0M	$1.020B	$1.150B
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$3.880B	$3.936B	$4.192B
YoY Change	-7.44%	-10.75%	-5.79%
LONG-TERM ASSETS
Property, Plant & Equipment	$1.601B	$1.604B	$1.656B
YoY Change	-3.31%	-1.17%	193.69%
Goodwill	$8.485B	$8.366B	$8.361B
YoY Change	1.48%	3.24%	248.88%
Intangibles	$4.520B	$4.517B	$4.727B
YoY Change	-4.39%	-6.31%	176.0%
Long-Term Investments	$100.0M		$95.20M
YoY Change	5.04%		209.09%
Other Assets	$619.0M	$648.8M	$631.7M
YoY Change	-2.01%	16.36%	477.42%
Total Long-Term Assets	$14.57B	$14.51B	$14.75B
YoY Change	-1.21%	0.12%	251.27%
TOTAL ASSETS
Total Short-Term Assets	$3.880B	$3.936B	$4.192B
Total Long-Term Assets	$14.57B	$14.51B	$14.75B
Total Assets	$18.45B	$18.44B	$18.94B
YoY Change	-2.59%	-2.42%	119.03%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$909.0M	$962.0M	$1.158B
YoY Change	-21.47%	-16.07%	96.39%
Accrued Expenses	$1.227B	$1.171B	$1.401B
YoY Change	-12.42%	-7.8%	125.97%
Deferred Revenue	$643.0M	$640.9M	$604.2M
YoY Change	6.42%	-4.43%	61.77%
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$447.0M	$454.8M	$95.70M
YoY Change	367.08%	306.07%	49.3%
Total Short-Term Liabilities	$3.226B	$3.229B	$3.258B
YoY Change	-0.98%	0.93%	97.86%
LONG-TERM LIABILITIES
Long-Term Debt	$3.792B	$3.800B	$4.334B
YoY Change	-12.5%	-18.0%	14.26%
Other Long-Term Liabilities	$783.0M	$793.8M	$808.9M
YoY Change	-3.2%	-30.56%	1621.06%
Total Long-Term Liabilities	$4.575B	$4.594B	$5.143B
YoY Change	-11.04%	301.86%	33.93%
TOTAL LIABILITIES
Total Short-Term Liabilities	$3.226B	$3.229B	$3.258B
Total Long-Term Liabilities	$4.575B	$4.594B	$5.143B
Total Liabilities	$8.301B	$8.392B	$8.951B
YoY Change	-7.26%	-8.5%	54.85%
SHAREHOLDERS EQUITY
Retained Earnings	$3.589B	$3.524B	$3.267B
YoY Change	9.86%	11.71%	8.11%
Common Stock	$7.883B	$7.884B	$7.879B
YoY Change	0.05%	0.85%	760.27%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$1.010B	$909.4M	$807.1M
YoY Change	25.14%	12.61%	-1.1%
Treasury Stock Shares	38.00M shares	36.60M shares	35.20M shares
Shareholders Equity	$10.12B	$10.02B	$9.957B
YoY Change
Total Liabilities & Shareholders Equity	$18.45B	$18.44B	$18.94B
YoY Change	-2.59%	-2.42%	119.03%

Cashflow Statement

Concept	2020 Q4	2020 Q3	2019 Q4
OPERATING ACTIVITIES
Net Income	$87.90M	$128.1M	$135.7M
YoY Change	-35.22%	40.61%	294.48%
Depreciation, Depletion And Amortization	$120.0M	$119.6M	$112.1M
YoY Change	7.05%	-3.7%	326.24%
Cash From Operating Activities	$325.6M	$229.5M	$447.8M
YoY Change	-27.29%	85.38%	61.84%
INVESTING ACTIVITIES
Capital Expenditures	-$37.70M	-$31.10M	-$72.70M
YoY Change	-48.14%	-38.66%	149.83%
Acquisitions
YoY Change
Other Investing Activities	$2.200M	$9.400M	$4.700M
YoY Change	-53.19%	-150.27%	-133.33%
Cash From Investing Activities	-$35.50M	-$21.70M	-$68.00M
YoY Change	-47.79%	-68.73%	57.77%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-258.2M	-237.3M	-355.6M
YoY Change	-27.39%	-360.77%	1967.44%
NET CHANGE
Cash From Operating Activities	325.6M	229.5M	447.8M
Cash From Investing Activities	-35.50M	-21.70M	-68.00M
Cash From Financing Activities	-258.2M	-237.3M	-355.6M
Net Change In Cash	31.90M	-29.50M	24.20M
YoY Change	31.82%	-120.29%	-88.82%
FREE CASH FLOW
Cash From Operating Activities	$325.6M	$229.5M	$447.8M
Capital Expenditures	-$37.70M	-$31.10M	-$72.70M
Free Cash Flow	$363.3M	$260.6M	$520.5M
YoY Change	-30.2%	49.34%	70.21%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	dei	Amendment Flag AmendmentFlag	false
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2020
	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	2020-09-30
	dei	Entity File Number EntityFileNumber	033-90866
	dei	City Area Code CityAreaCode	412
	dei	Entity Address State Or Province EntityAddressStateOrProvince	PA
	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	15212
	dei	Document Transition Report DocumentTransitionReport	false
	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	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
	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
	dei	Entity Shell Company EntityShellCompany	false
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CY2019Q3	us-gaap	Profit Loss ProfitLoss	90600000	USD
	us-gaap	Profit Loss ProfitLoss	325500000	USD
	us-gaap	Profit Loss ProfitLoss	189500000	USD
CY2020Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	400000	USD
CY2019Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-500000	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-1000000.0	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-1500000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	128100000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	91100000	USD
	us-gaap	Net Income Loss NetIncomeLoss	326500000	USD
	us-gaap	Net Income Loss NetIncomeLoss	191000000.0	USD
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.67
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.48
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.71
CY2020Q1	us-gaap	Stockholders Equity Other StockholdersEquityOther	5100000	USD
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.17
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.67
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.48
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.71
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.11
CY2020Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	189800000	shares
CY2019Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	189600000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	190100000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	163200000	shares
CY2020Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	190200000	shares
CY2019Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	191500000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	190600000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	172200000	shares
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	128100000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	91100000	USD
	us-gaap	Net Income Loss NetIncomeLoss	326500000	USD
	us-gaap	Net Income Loss NetIncomeLoss	191000000.0	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	53800000	USD
CY2019Q3	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	-181100000	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	-98400000	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	-208900000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax	2800000	USD
CY2019Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax	200000	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax	1800000	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax	-4000000.0	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	600000	USD
CY2019Q3	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	-2200000	USD
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	3500000	USD
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	100000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Before Tax Portion Attributable To Parent OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent	56000000.0	USD
CY2019Q3	us-gaap	Other Comprehensive Income Loss Before Tax Portion Attributable To Parent OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent	-178700000	USD
	us-gaap	Other Comprehensive Income Loss Before Tax Portion Attributable To Parent OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent	-100100000	USD
	us-gaap	Other Comprehensive Income Loss Before Tax Portion Attributable To Parent OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent	-213000000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	500000	USD
CY2019Q3	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	700000	USD
	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	-400000	USD
	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	-1000000.0	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	55500000	USD
CY2019Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-179400000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-99700000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-212000000.0	USD
CY2020Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	183600000	USD
CY2019Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-88300000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	226800000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-21000000.0	USD
	us-gaap	Profit Loss ProfitLoss	325500000	USD
	us-gaap	Profit Loss ProfitLoss	189500000	USD
	us-gaap	Depreciation And Amortization DepreciationAndAmortization	353300000	USD
	us-gaap	Depreciation And Amortization DepreciationAndAmortization	289300000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	17600000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	36100000	USD
	wab	Amortization Of Intangible Liability AmortizationOfIntangibleLiability	67900000	USD
	wab	Amortization Of Intangible Liability AmortizationOfIntangibleLiability	29900000	USD
	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	161600000	USD
	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-245200000	USD
	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	32300000	USD
	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-7800000	USD
	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-58700000	USD
	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-203400000	USD
	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-146500000	USD
	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	17900000	USD
	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	14500000	USD
	wab	Increase Decrease In Accrued Liabilities And Customer Deposits IncreaseDecreaseInAccruedLiabilitiesAndCustomerDeposits	-76300000	USD
	wab	Increase Decrease In Accrued Liabilities And Customer Deposits IncreaseDecreaseInAccruedLiabilitiesAndCustomerDeposits	18800000	USD
	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-169500000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	458100000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	567700000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	98700000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	112600000	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	3400000	USD
	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	40300000	USD
	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	3000600000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-119900000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-3109800000	USD
	us-gaap	Proceeds From Issuance Of Long Term Debt And Capital Securities Net ProceedsFromIssuanceOfLongTermDebtAndCapitalSecuritiesNet	2936000000.0	USD
	us-gaap	Proceeds From Issuance Of Long Term Debt And Capital Securities Net ProceedsFromIssuanceOfLongTermDebtAndCapitalSecuritiesNet	2955500000	USD
	us-gaap	Repayments Of Long Term Debt And Capital Securities RepaymentsOfLongTermDebtAndCapitalSecurities	3117100000	USD
	us-gaap	Repayments Of Long Term Debt And Capital Securities RepaymentsOfLongTermDebtAndCapitalSecurities	2064600000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	105300000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	69200000	USD
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	58200000	USD
	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-5200000	USD
	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-15600000	USD
CY2020Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	9797700000	USD
CY2020Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	559300000	USD
CY2019Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	587400000	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	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-178000000.0	USD
CY2020Q1	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	105300000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-360800000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	817100000	USD
	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-22300000	USD
	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-29900000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-44900000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-1754900000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	604200000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	2342300000	USD
CY2020Q1	us-gaap	Dividends Cash DividendsCash	23000000.0	USD
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
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
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2869100000	USD
CY2019Q1	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.12
CY2019Q1	us-gaap	Dividends Cash DividendsCash	11700000	USD
CY2019Q1	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	-5500000	USD
CY2019Q1	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	8500000	USD
CY2019Q1	us-gaap	Profit Loss ProfitLoss	-4000000.0	USD
CY2019Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-52400000	USD
CY2019Q1	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	6975000000.0	USD
CY2019Q1	us-gaap	Stockholders Equity Other StockholdersEquityOther	-1400000	USD
CY2019Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	9780400000	USD
CY2019Q2	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.12
CY2019Q2	us-gaap	Dividends Cash DividendsCash	22600000	USD
CY2019Q2	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	-3000000.0	USD
CY2019Q2	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	15400000	USD
CY2019Q2	us-gaap	Profit Loss ProfitLoss	102700000	USD
CY2019Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	19800000	USD
CY2019Q2	wab	Noncontrolling Interest Decrease From Business Combination NoncontrollingInterestDecreaseFromBusinessCombination	56200000	USD
CY2019Q2	us-gaap	Stockholders Equity Other StockholdersEquityOther	1600000	USD
CY2019Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	9834900000	USD
CY2019Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.12
CY2019Q3	us-gaap	Dividends Cash DividendsCash	23900000	USD
CY2019Q3	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	-5500000	USD
CY2019Q3	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	12200000	USD
CY2019Q3	wab	Net Income Loss Including Portion Attributable To Noncontrolling Interest Including Adjustments NetIncomeLossIncludingPortionAttributableToNoncontrollingInterestIncludingAdjustments	90800000	USD
CY2019Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-179400000	USD
CY2019Q3	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	100000	USD
CY2019Q3	us-gaap	Stockholders Equity Other StockholdersEquityOther	-200000	USD
CY2019Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	9729400000	USD
	us-gaap	Nature Of Operations NatureOfOperations	BUSINESS <div style="margin-top:6pt;text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">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, and 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 2020, approximately 58% of the Company’s revenues came from customers outside the United States. </span></div><div style="margin-top:6pt;text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">On March 11, 2020, the World Health Organization designated the outbreak of the novel strain of coronavirus, known as COVID-19, as a global pandemic. Governments and businesses around the world have taken unprecedented actions to mitigate the spread of COVID-19, including but not limited to, shelter-in-place orders, quarantines, significant restrictions on travel, as well as restrictions that prohibit many employees from going to work. Our top concern is, and remains, the health and well-being of our employees around the world. To date, COVID-19 has surfaced in nearly all regions around the world and has impacted our sales channels, supply chain, manufacturing operations, workforce, and other key aspects of our operations. The outbreak and preventive measures taken to help curb the spread, including temporary plant closures in China, India, Italy and other countries where outbreaks and stay-at-home orders were most prevalent, had an adverse impact on our operations and business results for the first nine months of 2020.</span></div>
CY2020Q3	us-gaap	Number Of Countries In Which Entity Operates NumberOfCountriesInWhichEntityOperates	50	country
CY2019Q4	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	77000000.0	USD
CY2020Q3	us-gaap	Provision For Loss On Contracts ProvisionForLossOnContracts	101300000	USD
	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	Reclassifications Certain prior year amounts have been reclassified, where necessary, to conform to the current year presentation.
	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.
CY2020Q3	us-gaap	Contract With Customer Asset Net Noncurrent ContractWithCustomerAssetNetNoncurrent	103800000	USD
CY2019Q4	us-gaap	Contract With Customer Asset Net Noncurrent ContractWithCustomerAssetNetNoncurrent	109400000	USD
CY2020Q3	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	67500000	USD
CY2019Q4	us-gaap	Provision For Loss On Contracts ProvisionForLossOnContracts	118500000	USD
CY2020Q3	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	20500000000	USD
CY2020Q3	us-gaap	Revenue Remaining Performance Obligation Percentage RevenueRemainingPerformanceObligationPercentage	0.25
CY2020Q3	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	150000000.0	USD
CY2020Q3	us-gaap	Proceeds From Accounts Receivable Securitization ProceedsFromAccountsReceivableSecuritization	289100000	USD
	us-gaap	Proceeds From Accounts Receivable Securitization ProceedsFromAccountsReceivableSecuritization	583000000.0	USD
CY2020Q3	us-gaap	Repayments Of Accounts Receivable Securitization RepaymentsOfAccountsReceivableSecuritization	291600000	USD
	us-gaap	Repayments Of Accounts Receivable Securitization RepaymentsOfAccountsReceivableSecuritization	485500000	USD
CY2020Q3	us-gaap	Proceeds From Repayments Of Accounts Receivable Securitization ProceedsFromRepaymentsOfAccountsReceivableSecuritization	-2500000	USD
	us-gaap	Proceeds From Repayments Of Accounts Receivable Securitization ProceedsFromRepaymentsOfAccountsReceivableSecuritization	97500000	USD
	us-gaap	Number Of Reporting Units NumberOfReportingUnits	3	reportingUnit
	us-gaap	Number Of Reporting Units NumberOfReportingUnits	3	reportingUnit
	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
	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	-213600000	USD
	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-1600000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-212000000.0	USD
	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	6307200000	USD
	wab	Business Acquisition Pro Forma Gross Profit BusinessAcquisitionProFormaGrossProfit	1668400000	USD
	us-gaap	Business Acquisitions Pro Forma Net Income Loss BusinessAcquisitionsProFormaNetIncomeLoss	141500000	USD
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.11
	us-gaap	Business Acquisition Pro Forma Earnings Per Share Diluted BusinessAcquisitionProFormaEarningsPerShareDiluted	0.74
CY2019Q4	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	374000000.0	USD
CY2020Q3	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	684100000	USD
CY2019Q4	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	612700000	USD
CY2020Q3	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	737700000	USD
CY2019Q4	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	786400000	USD
CY2020Q3	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	357900000	USD
CY2020Q3	us-gaap	Inventory Net InventoryNet	1779700000	USD
CY2019Q4	us-gaap	Inventory Net InventoryNet	1773100000	USD
CY2019Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	79500000	USD
CY2019Q4	us-gaap	Goodwill Goodwill	8360600000	USD
	us-gaap	Goodwill Purchase Accounting Adjustments GoodwillPurchaseAccountingAdjustments	-3500000	USD
	wab	Goodwill Disposals GoodwillDisposals	5600000	USD
	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	14600000	USD
CY2020Q3	us-gaap	Goodwill Goodwill	8366100000	USD
CY2020Q3	us-gaap	Indefinite Lived Trademarks IndefiniteLivedTrademarks	627600000	USD
CY2019Q4	us-gaap	Indefinite Lived Trademarks IndefiniteLivedTrademarks	623100000	USD
CY2020Q3	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	3262000000.0	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	3480900000	USD
CY2020Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	70300000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	211600000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	172900000	USD
CY2020Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Remainder Of Fiscal Year FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear	69500000	USD
CY2020Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	277700000	USD
CY2020Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	277100000	USD
CY2020Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	276700000	USD
CY2020Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	267200000	USD
CY2019Q4	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	623400000	USD
CY2018Q4	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	345600000	USD
	us-gaap	Contract With Customer Asset Increase Decrease For Contract Acquired In Business Combination ContractWithCustomerAssetIncreaseDecreaseForContractAcquiredInBusinessCombination	4100000	USD
	us-gaap	Contract With Customer Asset Increase Decrease For Contract Acquired In Business Combination ContractWithCustomerAssetIncreaseDecreaseForContractAcquiredInBusinessCombination	217400000	USD
	wab	Contract With Customer Asset New Contract Additions ContractWithCustomerAssetNewContractAdditions	759200000	USD
	wab	Contract With Customer Asset New Contract Additions ContractWithCustomerAssetNewContractAdditions	445100000	USD
	us-gaap	Contract With Customer Asset Reclassified To Receivable ContractWithCustomerAssetReclassifiedToReceivable	868700000	USD
	us-gaap	Contract With Customer Asset Reclassified To Receivable ContractWithCustomerAssetReclassifiedToReceivable	415700000	USD
	wab	Contract With Customer Asset Increase Decrease Foreign Currency Translation Adjustment ContractWithCustomerAssetIncreaseDecreaseForeignCurrencyTranslationAdjustment	-700000	USD
	wab	Contract With Customer Asset Increase Decrease Foreign Currency Translation Adjustment ContractWithCustomerAssetIncreaseDecreaseForeignCurrencyTranslationAdjustment	-12700000	USD
CY2020Q3	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	517300000	USD
CY2019Q3	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	579700000	USD
CY2019Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	799700000	USD
CY2018Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	444800000	USD
	us-gaap	Contract With Customer Liability Increase Decrease For Contract Acquired In Business Combination ContractWithCustomerLiabilityIncreaseDecreaseForContractAcquiredInBusinessCombination	6900000	USD
	us-gaap	Contract With Customer Liability Increase Decrease For Contract Acquired In Business Combination ContractWithCustomerLiabilityIncreaseDecreaseForContractAcquiredInBusinessCombination	314700000	USD
	wab	Contract With Customer Liability New Contract Additions ContractWithCustomerLiabilityNewContractAdditions	589100000	USD
	wab	Contract With Customer Liability New Contract Additions ContractWithCustomerLiabilityNewContractAdditions	781300000	USD
	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	430000000.0	USD
	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	412900000	USD
	wab	Contractwith Customer Liability Revenue Recognizedfrom Current Year Additions ContractwithCustomerLiabilityRevenueRecognizedfromCurrentYearAdditions	152600000	USD
	wab	Contractwith Customer Liability Revenue Recognizedfrom Current Year Additions ContractwithCustomerLiabilityRevenueRecognizedfromCurrentYearAdditions	270300000	USD
	wab	Contractwith Customer Liability Increase Decrease Foreign Currency Translation Adjustment ContractwithCustomerLiabilityIncreaseDecreaseForeignCurrencyTranslationAdjustment	-3300000	USD
	wab	Contractwith Customer Liability Increase Decrease Foreign Currency Translation Adjustment ContractwithCustomerLiabilityIncreaseDecreaseForeignCurrencyTranslationAdjustment	-12300000	USD
CY2020Q3	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	809800000	USD
CY2019Q3	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	845300000	USD
CY2020Q3	us-gaap	Operating Lease Cost OperatingLeaseCost	14100000	USD
CY2019Q3	us-gaap	Operating Lease Cost OperatingLeaseCost	13600000	USD
	us-gaap	Operating Lease Cost OperatingLeaseCost	42900000	USD
	us-gaap	Operating Lease Cost OperatingLeaseCost	40400000	USD
CY2020Q3	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	300000	USD
CY2019Q3	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	300000	USD
	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	900000	USD
	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	900000	USD
CY2020Q3	wab	Shortterm And Variable Lease Cost ShorttermAndVariableLeaseCost	0	USD
CY2019Q3	wab	Shortterm And Variable Lease Cost ShorttermAndVariableLeaseCost	200000	USD
	wab	Shortterm And Variable Lease Cost ShorttermAndVariableLeaseCost	100000	USD
	wab	Shortterm And Variable Lease Cost ShorttermAndVariableLeaseCost	500000	USD
CY2020Q3	us-gaap	Sublease Income SubleaseIncome	100000	USD
CY2019Q3	us-gaap	Sublease Income SubleaseIncome	100000	USD
	us-gaap	Sublease Income SubleaseIncome	300000	USD
	us-gaap	Sublease Income SubleaseIncome	400000	USD
CY2020Q3	us-gaap	Lease Cost LeaseCost	14300000	USD
CY2019Q3	us-gaap	Lease Cost LeaseCost	14000000.0	USD
	us-gaap	Lease Cost LeaseCost	43600000	USD
	us-gaap	Lease Cost LeaseCost	41400000	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Remainder Of Fiscal Year LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear	14200000	USD
CY2020Q3	us-gaap	Finance Lease Liability Payments Remainder Of Fiscal Year FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear	100000	USD
CY2020Q3	wab	Lessee Operating And Finance Lease Liability Total Payments Remainderof Fiscal Year LesseeOperatingAndFinanceLeaseLiabilityTotalPaymentsRemainderofFiscalYear	14300000	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	51100000	USD
CY2020Q3	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	400000	USD
CY2020Q3	wab	Lessee Operating And Finance Lease Liability To Be Paid Year One LesseeOperatingAndFinanceLeaseLiabilityToBePaidYearOne	51500000	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	43900000	USD
CY2020Q3	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	200000	USD
CY2020Q3	wab	Lessee Operating And Finance Lease Liability Total Payments Due Year Two LesseeOperatingAndFinanceLeaseLiabilityTotalPaymentsDueYearTwo	44100000	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	37700000	USD
CY2020Q3	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	200000	USD
CY2020Q3	wab	Lessee Operating And Finance Lease Liability Total Payments Due Year Three LesseeOperatingAndFinanceLeaseLiabilityTotalPaymentsDueYearThree	37900000	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	32900000	USD
CY2020Q3	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	100000	USD
CY2020Q3	wab	Lessee Operating And Finance Lease Liability Total Payments Due Year Four LesseeOperatingAndFinanceLeaseLiabilityTotalPaymentsDueYearFour	33000000.0	USD
CY2020Q3	wab	Lessee Operating Lease Liability Payments Due After Year Four LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour	100100000	USD
CY2020Q3	wab	Finance Lease Liability Payments Due After Year Four FinanceLeaseLiabilityPaymentsDueAfterYearFour	200000	USD
CY2020Q3	wab	Lessee Operating And Finance Lease Liability Total Payments Due After Year Four LesseeOperatingAndFinanceLeaseLiabilityTotalPaymentsDueAfterYearFour	100300000	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	279900000	USD
CY2020Q3	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	1200000	USD
CY2020Q3	wab	Lessee Operating And Finance Lease Liability Payments Due LesseeOperatingAndFinanceLeaseLiabilityPaymentsDue	281100000	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	25400000	USD
CY2020Q3	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	0	USD
CY2020Q3	wab	Lessee Operating And Finance Lease Liability Undiscounted Excess Amount LesseeOperatingAndFinanceLeaseLiabilityUndiscountedExcessAmount	25400000	USD
CY2020Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	254500000	USD
CY2020Q3	us-gaap	Finance Lease Liability FinanceLeaseLiability	1200000	USD
CY2020Q3	wab	Operating And Finance Lease Liability OperatingAndFinanceLeaseLiability	255700000	USD
CY2020Q3	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P7Y4M24D
CY2020Q3	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P4Y6M
CY2020Q3	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.029
CY2020Q3	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.015
CY2020Q3	us-gaap	Long Term Debt LongTermDebt	4254700000	USD
CY2019Q4	us-gaap	Long Term Debt LongTermDebt	4429300000	USD
CY2020Q3	us-gaap	Long Term Debt Current LongTermDebtCurrent	454800000	USD
CY2019Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	95700000	USD
CY2020Q3	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	3799900000	USD
CY2019Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	4333600000	USD
CY2020Q3	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	22200000	USD
CY2019Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	21300000	USD
CY2020Q3	us-gaap	Longterm Debt Weighted Average Interest Rate LongtermDebtWeightedAverageInterestRate	0.023
CY2020Q3	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	12000000.0	USD
CY2019Q3	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	11800000	USD
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	17600000	USD
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	36100000	USD
CY2020Q3	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	40600000	USD
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	588024	shares
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	63.36
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P5Y8M12D
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	8500000	USD
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	135006	shares
	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	77.91
	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	21662	shares
	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	38.97
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	82230	shares
	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	73.41
CY2020Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	619138	shares
CY2020Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	66.35
	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P5Y9M18D
CY2020Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	3700000	USD
CY2020Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	392928	shares
CY2020Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	54.51
	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P4Y6M
CY2020Q3	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	3700000	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 Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.0066
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0153
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0260
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.281
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.258
	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P5Y
	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P5Y
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	73.64
	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	76.67
	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	77.47
	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	71.84
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeitures Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue	72.47
CY2020Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	73.83
CY2020Q3	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.267
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.258
CY2019Q3	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.200
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.304
CY2020Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	12900000	USD
CY2020Q3	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	11300000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	17200000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	17200000	USD
CY2020Q3	us-gaap	Significant Change In Unrecognized Tax Benefits Is Reasonably Possible Amount Of Unrecorded Benefit SignificantChangeInUnrecognizedTaxBenefitsIsReasonablyPossibleAmountOfUnrecordedBenefit	3000000.0	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	128100000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	91100000	USD
CY2020Q3	us-gaap	Dividends Common Stock Stock DividendsCommonStockStock	22800000	USD
CY2019Q3	us-gaap	Dividends Common Stock Stock DividendsCommonStockStock	23000000.0	USD
CY2020Q3	us-gaap	Undistributed Earnings UndistributedEarnings	105300000	USD
CY2019Q3	us-gaap	Undistributed Earnings UndistributedEarnings	68100000	USD
CY2020Q3	wab	Percentage Of Net Income Allocated To Common Shareholders PercentageOfNetIncomeAllocatedToCommonShareholders	0.998
CY2019Q3	wab	Percentage Of Net Income Allocated To Common Shareholders PercentageOfNetIncomeAllocatedToCommonShareholders	0.997
CY2020Q3	wab	Undistributed Earnings Allocated To Common Shareholders UndistributedEarningsAllocatedToCommonShareholders	105100000	USD
CY2019Q3	wab	Undistributed Earnings Allocated To Common Shareholders UndistributedEarningsAllocatedToCommonShareholders	67900000	USD
CY2020Q3	wab	Dividends Declared Common Shares DividendsDeclaredCommonShares	22800000	USD
CY2019Q3	wab	Dividends Declared Common Shares DividendsDeclaredCommonShares	23000000.0	USD
CY2020Q3	wab	Numerator For Basic And Diluted Earnings Per Common Share NumeratorForBasicAndDilutedEarningsPerCommonShare	127900000	USD
CY2019Q3	wab	Numerator For Basic And Diluted Earnings Per Common Share NumeratorForBasicAndDilutedEarningsPerCommonShare	90900000	USD
CY2020Q3	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	127900000	USD
CY2019Q3	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	90900000	USD
CY2020Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	189800000	shares
CY2019Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	189600000	shares
CY2020Q3	us-gaap	Incremental Common Shares Attributable To Conversion Of Preferred Stock IncrementalCommonSharesAttributableToConversionOfPreferredStock	0	shares
CY2019Q3	us-gaap	Incremental Common Shares Attributable To Conversion Of Preferred Stock IncrementalCommonSharesAttributableToConversionOfPreferredStock	1500000	shares
CY2020Q3	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	400000	shares
CY2019Q3	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	400000	shares
CY2020Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	190200000	shares
CY2019Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	191500000	shares
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.67
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.48
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.67
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.48
CY2020Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	189800000	shares
CY2019Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	189600000	shares
CY2020Q3	wab	Basic Weighted Average Common Shares Outstanding And Non Vested Restricted Stock Expected To Vest BasicWeightedAverageCommonSharesOutstandingAndNonVestedRestrictedStockExpectedToVest	190300000	shares
CY2019Q3	wab	Basic Weighted Average Common Shares Outstanding And Non Vested Restricted Stock Expected To Vest BasicWeightedAverageCommonSharesOutstandingAndNonVestedRestrictedStockExpectedToVest	190100000	shares
CY2020Q3	wab	Percentage Of Net Income Allocated To Common Shareholders PercentageOfNetIncomeAllocatedToCommonShareholders	0.998
CY2019Q3	wab	Percentage Of Net Income Allocated To Common Shareholders PercentageOfNetIncomeAllocatedToCommonShareholders	0.997
	us-gaap	Net Income Loss NetIncomeLoss	326500000	USD
	us-gaap	Net Income Loss NetIncomeLoss	191000000.0	USD
	us-gaap	Dividends Common Stock Stock DividendsCommonStockStock	68700000	USD
	us-gaap	Dividends Common Stock Stock DividendsCommonStockStock	57300000	USD
	us-gaap	Undistributed Earnings UndistributedEarnings	257800000	USD
	us-gaap	Undistributed Earnings UndistributedEarnings	133700000	USD
	wab	Percentage Of Net Income Allocated To Common Shareholders PercentageOfNetIncomeAllocatedToCommonShareholders	0.997
	wab	Percentage Of Net Income Allocated To Common Shareholders PercentageOfNetIncomeAllocatedToCommonShareholders	0.997
	wab	Undistributed Earnings Allocated To Common Shareholders UndistributedEarningsAllocatedToCommonShareholders	257000000.0	USD
	wab	Undistributed Earnings Allocated To Common Shareholders UndistributedEarningsAllocatedToCommonShareholders	133300000	USD
	wab	Dividends Declared Common Shares DividendsDeclaredCommonShares	68500000	USD
	wab	Dividends Declared Common Shares DividendsDeclaredCommonShares	57200000	USD
	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	0	USD
	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	400000	USD
	wab	Numerator For Basic And Diluted Earnings Per Common Share NumeratorForBasicAndDilutedEarningsPerCommonShare	325500000	USD
	wab	Numerator For Basic And Diluted Earnings Per Common Share NumeratorForBasicAndDilutedEarningsPerCommonShare	190100000	USD
	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	0	USD
	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	400000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	325500000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	190500000	USD
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	190100000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	163200000	shares
	us-gaap	Incremental Common Shares Attributable To Conversion Of Preferred Stock IncrementalCommonSharesAttributableToConversionOfPreferredStock	0	shares
	us-gaap	Incremental Common Shares Attributable To Conversion Of Preferred Stock IncrementalCommonSharesAttributableToConversionOfPreferredStock	8600000	shares
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	500000	shares
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	400000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	190600000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	172200000	shares
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.71
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.17
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.71
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.11
	us-gaap	Product Warranty Accrual Warranties Issued ProductWarrantyAccrualWarrantiesIssued	86800000	USD
	us-gaap	Product Warranty Accrual Warranties Issued ProductWarrantyAccrualWarrantiesIssued	81900000	USD
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	190100000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	163200000	shares
	wab	Basic Weighted Average Common Shares Outstanding And Non Vested Restricted Stock Expected To Vest BasicWeightedAverageCommonSharesOutstandingAndNonVestedRestrictedStockExpectedToVest	190600000	shares
	wab	Basic Weighted Average Common Shares Outstanding And Non Vested Restricted Stock Expected To Vest BasicWeightedAverageCommonSharesOutstandingAndNonVestedRestrictedStockExpectedToVest	163700000	shares
	wab	Percentage Of Net Income Allocated To Common Shareholders PercentageOfNetIncomeAllocatedToCommonShareholders	0.997
	wab	Percentage Of Net Income Allocated To Common Shareholders PercentageOfNetIncomeAllocatedToCommonShareholders	0.997
CY2019Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	267700000	USD
CY2018Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	153700000	USD
	us-gaap	Product Warranty Accrual Additions From Business Acquisition ProductWarrantyAccrualAdditionsFromBusinessAcquisition	4300000	USD
	us-gaap	Product Warranty Accrual Additions From Business Acquisition ProductWarrantyAccrualAdditionsFromBusinessAcquisition	108200000	USD
	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	95700000	USD
	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	93100000	USD
	us-gaap	Standard And Extended Product Warranty Accrual Foreign Currency Translation Gain Loss StandardAndExtendedProductWarrantyAccrualForeignCurrencyTranslationGainLoss	-1700000	USD
	us-gaap	Standard And Extended Product Warranty Accrual Foreign Currency Translation Gain Loss StandardAndExtendedProductWarrantyAccrualForeignCurrencyTranslationGainLoss	4100000	USD
CY2020Q3	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	264800000	USD
CY2019Q3	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	246600000	USD
CY2020Q3	us-gaap	Product Warranty Accrual Noncurrent ProductWarrantyAccrualNoncurrent	300500000	USD
	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	2	segment
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
CY2019Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2001700000	USD
CY2019Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2001700000	USD
CY2019Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	169100000	USD
CY2019Q3	wab	Interest Expense And Other Net InterestExpenseAndOtherNet	55800000	USD
CY2019Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	113300000	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
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	5831600000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	5831600000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	437000000.0	USD
	wab	Interest Expense And Other Net InterestExpenseAndOtherNet	164900000	USD
CY2020Q3	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	5600000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	272100000	USD
CY2020Q3	us-gaap	Foreign Currency Transaction Gain Loss Realized ForeignCurrencyTransactionGainLossRealized	6400000	USD
CY2019Q3	us-gaap	Foreign Currency Transaction Gain Loss Realized ForeignCurrencyTransactionGainLossRealized	-2400000	USD
	us-gaap	Foreign Currency Transaction Gain Loss Realized ForeignCurrencyTransactionGainLossRealized	-7700000	USD
	us-gaap	Foreign Currency Transaction Gain Loss Realized ForeignCurrencyTransactionGainLossRealized	-16200000	USD
CY2019Q3	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	1000000.0	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	6700000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	3000000.0	USD
CY2020Q3	wab	Periodic Defined Benefits Expense Reversalof Expense Excluding Interest Cost And Service Cost Component PeriodicDefinedBenefitsExpenseReversalofExpenseExcludingInterestCostAndServiceCostComponent	-2500000	USD
CY2019Q3	wab	Periodic Defined Benefits Expense Reversalof Expense Excluding Interest Cost And Service Cost Component PeriodicDefinedBenefitsExpenseReversalofExpenseExcludingInterestCostAndServiceCostComponent	-2300000	USD
	wab	Periodic Defined Benefits Expense Reversalof Expense Excluding Interest Cost And Service Cost Component PeriodicDefinedBenefitsExpenseReversalofExpenseExcludingInterestCostAndServiceCostComponent	-7200000	USD
	wab	Periodic Defined Benefits Expense Reversalof Expense Excluding Interest Cost And Service Cost Component PeriodicDefinedBenefitsExpenseReversalofExpenseExcludingInterestCostAndServiceCostComponent	-7500000	USD
CY2020Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-200000	USD
CY2019Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	1000000.0	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-400000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	1600000	USD
CY2020Q3	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	14300000	USD
CY2019Q3	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	1900000	USD
	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	5800000	USD
	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-4100000	USD

Files In Submission

Name	View Source	Status
0001628280-20-015066-index-headers.html	Edgar Link	pending
0001628280-20-015066-index.html	Edgar Link	pending
0001628280-20-015066.txt	Edgar Link	pending
0001628280-20-015066-xbrl.zip	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
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wab-20200930.htm	Edgar Link	pending
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wab-20200930_cal.xml	Edgar Link	unprocessable
wab-20200930_def.xml	Edgar Link	unprocessable
wab-20200930_htm.xml	Edgar Link	completed
wab-20200930_lab.xml	Edgar Link	unprocessable
wab-20200930_pre.xml	Edgar Link	unprocessable
wabex221q32020.htm	Edgar Link	pending
wabex311q32020.htm	Edgar Link	pending
wabex312q32020.htm	Edgar Link	pending
wabex321q32020.htm	Edgar Link	pending

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$WAB
WESTINGHOUSE AIR BRAKE TECHNOLOGIES CORP Stock $wab

2020 Q4 Form 10-Q Financial Statement

#000162828020015066 Filed on October 29, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$WAB WESTINGHOUSE AIR BRAKE TECHNOLOGIES CORP Stock $wab

2020 Q4 Form 10-Q Financial Statement

#000162828020015066 Filed on October 29, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$WAB
WESTINGHOUSE AIR BRAKE TECHNOLOGIES CORP Stock $wab