LEASES Schedule of Supplemental Balance Sheet Information Related to Leases (Details) - USD ($) $ in Millions		Jun. 30, 2019	Dec. 31, 2018
Leases [Abstract]
Operating lease, right-of-use asset		$ 408	$ 0
Finance lease, right-of-use asset	[1]	103
Leased assets, total		511
Operating lease, liability, current		131
Finance lease, liability, current		11
Operating lease, liability, noncurrent		281	$ 0
Finance lease, liability, noncurrent		88
Lease liability, total		$ 511

[1] Finance leases are recorded net of accumulated amortization of $34 million.