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LEASES Lease Assets and Liabilities (Details) - USD ($)
$ in Millions
Dec. 31, 2019
Jan. 01, 2019
Dec. 31, 2018
Leases [Abstract]      
Operating Lease, Right-of-Use Asset $ 704 $ 543 $ 0
Operating Lease, Liability, Current 133 40 0
Operating Lease, Liability, Noncurrent 672 548 $ 0
Operating Lease, Liability $ 805 $ 588