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LEASES - Schedule of Maturities of Operating Leases (Details) - USD ($)
$ in Millions
Dec. 31, 2019
Jan. 01, 2019
Leases [Abstract]    
Weighted average remaining lease term 5 years  
2020 $ 63  
2021 55  
2022 45  
2023 30  
2024 16  
Thereafter 30  
Total lease payments 239  
Less interest (10)  
Present value of lease liabilities $ 229 $ 205