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REVENUE RECOGNITION - Activity in Allowance for Credit Losses (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Accounts Receivable, Allowance for Credit Loss [Roll Forward]    
Balance, beginning of period $ 16 $ 17
Recoveries 1 0
Foreign exchange and other (1) 0
Balance, end of period $ 16 $ 17