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Schedule II - Valuation And Qualifying Accounts
12 Months Ended
Dec. 31, 2019
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/
(credited) to
expense
Charged/ (credited) to
other
accounts (1)
Deductions
from
reserves (2)
Balance
at end of
period
2019     
Allowance for doubtful accounts$16.9  $7.1  $0.2  $4.5  $19.9  
Valuation allowance-taxes41.8  16.2  —  —  58.0  
2018     
Allowance for doubtful accounts$12.3  $9.5  $(0.4) $4.5  $16.9  
Valuation allowance-taxes25.7  27.4  —  11.3  41.8  
2017     
Allowance for doubtful accounts$7.3  $2.6  $5.0  $2.6  $12.3  
Valuation allowance-taxes21.4  4.3  —  —  25.7  
 
(1)Reserves of acquired/(sold) companies; valuation allowances for state and foreign deferred tax assets; impact of fluctuations in foreign currency exchange rates.
(2)Actual disbursements and/or charges.