LEASES Supplemental Balance Sheet Information Related to Leases (Details) - USD ($) $ in Millions	Sep. 30, 2019	Jan. 01, 2019
Assets
Operating lease right-of-use assets	$ 123
Financing lease right-of-use assets	31
Total leased assets	154	$ 165
Current:
Operating lease liabilities	20
Financing lease liabilities	14
Noncurrent:
Operating lease liabilities	106
Financing lease liabilities	22
Total lease liabilities	$ 162	$ 172