LEASES Schedule of Supplemental Balance Sheet Information Related to Leases (Details) - USD ($) $ in Millions		Sep. 30, 2019	Dec. 31, 2018
Leases [Abstract]
Operating lease, right-of-use asset		$ 425	$ 0
Finance lease, right-of-use asset	[1]	105
Leased assets, total		530
Operating lease, liability, current		136
Finance lease, liability, current		13
Operating lease, liability, noncurrent		292	$ 0
Finance lease, liability, noncurrent		91
Lease liability, total		$ 532

[1] Finance leases are recorded net of accumulated amortization of $37 million.