OTHER CURRENT LIABILITIES (Detail) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Payables and Accruals [Abstract]
Accrued operating expenses	$ 143	$ 143
Accrued exploration and development	285	319
Accrued gathering, processing, and transmission - Altus	5	17
Accrued compensation and benefits	72	212
Accrued interest	111	135
Accrued income taxes	42	51
Current asset retirement obligation	47	47
Current operating lease liability	134	169
Other	114	56
Total Other current liabilities	$ 953	$ 1,149