OTHER CURRENT ASSETS (Details) - USD ($) $ in Millions	Jun. 30, 2019	Dec. 31, 2018
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Inventories	$ 453	$ 401
Drilling advances	226	218
Assets held for sale	379	0
Prepaid assets and other	86	160
Total other current assets	$ 1,144	$ 779