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SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS
 12 Months Ended
Dec. 31, 2024
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]  
VALUATION AND QUALIFYING ACCOUNTS
SCHEDULE II
WESTINGHOUSE AIR BRAKE TECHNOLOGIES CORPORATION
VALUATION AND QUALIFYING ACCOUNTS
For each of the three years ended December 31 
In millionsBalance at
beginning
of period		Charged to
expense		Charged/ (credited) to
other
accounts (1)		Deductions
from
reserves (2)		Balance
at end of
period
2024     
Allowance for doubtful accounts$31 $11 $— $(6)$36 
Valuation allowance-taxes$58 $— $— $(6)$52 
2023     
Allowance for doubtful accounts$28 $8 $— $(5)$31 
Valuation allowance-taxes$46 $12 $— $— $58 
2022     
Allowance for doubtful accounts$32 $4 $(1)$(7)$28 
Valuation allowance-taxes$64 $— $— $(18)$46 
 
(1)Impact of fluctuations in foreign currency exchange rates.
(2)Deductions in Allowance for doubtful accounts are from amounts written off as uncollectible or proceeds from subsequent collections. Deductions for Valuation allowances-taxes were primarily from changes in expected deferred tax utilization.