v3.21.1
OTHER NON-CURRENT ASSETS - ALLOWANCE FOR DOUBTFUL ACCOUNTS (Details) - Long-term receivables - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Financing Receivable, Allowance for Credit Loss    
Beginning balance $ 63 $ 96
Bad debt provisions 2 2
Recoveries 0 (8)
Transfers 0 0
Foreign exchange translation (6) (22)
Ending balance $ 59 $ 68