LEASES Schedule of Supplemental Balance Sheet Information Related to Leases (Details) - USD ($) $ in Millions		Mar. 31, 2019	Dec. 31, 2018
Leases [Abstract]
Operating Lease, Right-of-Use Asset		$ 415	$ 0
Finance Lease, Right-of-Use Asset	[1]	104
Leased assets, total		519
Operating Lease, Liability, Current		137
Finance Lease, Liability, Current		9
Operating Lease, Liability, Noncurrent		281	$ 0
Finance Lease, Liability, Noncurrent		90
Lease Liability, Total		$ 517

[1] Finance leases are recorded net of accumulated amortization of $33 million.