Cover Page - shares	9 Months Ended
	Sep. 30, 2023	Oct. 20, 2023
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2023
Document Transition Report	false
Entity File Number	033-90866
Entity Registrant Name	WESTINGHOUSE AIR BRAKE TECHNOLOGIES CORPORATION
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	25-1615902
Entity Address, Address Line One	30 Isabella Street
Entity Address, City or Town	Pittsburgh
Entity Address, State or Province	PA
Entity Address, Postal Zip Code	15212
City Area Code	412
Local Phone Number	825-1000
Title of 12(b) Security	Common Stock, $.01 par value per share
Trading Symbol	WAB
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Emerging Growth Company	false
Entity Small Business	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		179,159,160
Amendment Flag	false
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q3
Entity Central Index Key	0000943452
Current Fiscal Year End Date	--12-31