LEASES Supplemental Balance Sheet Information Related to Leases (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Jan. 01, 2019
Document Period End Date	Mar. 31, 2019
Assets
Operating lease right-of-use assets	$ 125
Finance Lease, right-of-use assets	34
Total leased assets	159	$ 165
Current
Operating lease liabilities	14
Financing lease liabilities	14
Noncurrent
Operating lease liabilities	113
Financing lease liabilities	24
Total lease liabilities	$ 165	$ (172)