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COMMITMENTS AND CONTINGENCIES - Narrative (Details) - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Loss Contingencies [Line Items]    
Loss contingency, accrual $ 21 $ 17
Purchase obligation due in next twelve months 63  
Minimum    
Loss Contingencies [Line Items]    
Loss contingency, estimate 16  
Maximum    
Loss Contingencies [Line Items]    
Loss contingency, estimate $ 20