OTHER CURRENT LIABILITIES (Detail) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Payables and Accruals [Abstract]
Accrued operating expenses	$ 65	$ 72
Accrued exploration and development	667	802
Accrued compensation and benefits	177	115
Accrued interest	137	145
Accrued income taxes	58	55
Current asset retirement obligation	66	43
Other	172	141
Total Other current liabilities	$ 1,342	$ 1,373