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REVENUE FROM CONTRACTS WITH CUSTOMERS - Narrative (Details) - USD ($)
$ in Millions
Sep. 30, 2021
Dec. 31, 2020
Disaggregation of Revenue [Line Items]    
Contract assets $ 21 $ 16
Contract liabilities - Current 23 22
Customer return assets 9 8
Customer incentive payments 38 43
Customer incentive payments $ 142 166
Minimum    
Disaggregation of Revenue [Line Items]    
Revenue, remaining performance obligation, expected timing of satisfaction (in years) 3 years  
Maximum    
Disaggregation of Revenue [Line Items]    
Revenue, remaining performance obligation, expected timing of satisfaction (in years) 7 years  
Other Current Liabilities    
Disaggregation of Revenue [Line Items]    
Contract liabilities - Current $ 23 22
Other non-current liabilities    
Disaggregation of Revenue [Line Items]    
Deferred income 1 6
Prepayments and other current assets    
Disaggregation of Revenue [Line Items]    
Customer incentive payments 38 43
Other non-current assets    
Disaggregation of Revenue [Line Items]    
Customer incentive payments $ 142 $ 166