OTHER CURRENT LIABILITIES (Detail) - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017
Payables and Accruals [Abstract]
Accrued operating expenses	$ 76	$ 72
Accrued exploration and development	811	802
Accrued compensation and benefits	46	115
Accrued interest	104	145
Accrued income taxes	41	55
Current asset retirement obligation	42	43
Other	114	141
Total other current liabilities	$ 1,234	$ 1,373