OTHER CURRENT LIABILITIES (Detail) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Payables and Accruals [Abstract]
Accrued operating expenses	$ 72	$ 110
Accrued exploration and development	802	463
Accrued compensation and benefits	115	201
Accrued interest	145	145
Accrued income taxes	55	22
Current asset retirement obligation	43	66
Refundable deposits	0	174
Other	141	77
Total Other current liabilities	$ 1,373	$ 1,258