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LEASES - Narrative (Details)
$ in Millions
12 Months Ended
Dec. 31, 2021
USD ($)
lease
Dec. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Operating Leased Assets [Line Items]      
Number of leases with option to extend | lease 1    
Renewal term 5 years    
Operating lease expense | $ $ 13 $ 17 $ 19
Lease term (in years) 5 years 2 months 12 days 5 years 9 months 18 days  
Minimum      
Operating Leased Assets [Line Items]      
Term of contract (in years) 1 year    
Maximum      
Operating Leased Assets [Line Items]      
Term of contract (in years) 7 years