LEASES Schedule of Supplemental Balance Sheet Information Related to Leases (Details) - USD ($) $ in Millions		Jun. 30, 2020	Dec. 31, 2019
Leases [Abstract]
Operating lease, right-of-use asset		$ 425	$ 434
Finance lease, right-of-use asset	[1]	96	103
Lease asset, total		521	537
Operating lease, liability, current		134	134
Finance lease, liability, current		12	12
Operating lease, liability, noncurrent		294	304
Finance lease, liability, noncurrent		84	88
Lease liability, total		$ 524	$ 538

[1] Finance leases are recorded net of accumulated amortization of $46 million and $40 million as of June 30, 2020 and December 31, 2019, respectively.