Supplementary Cash Flow Information (Detail) - USD ($) $ in Millions		12 Months Ended
	Jul. 01, 2015	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Cash Flows From Operating Activities
Interest paid		$ (314)	$ (338)	$ (331)
Net income taxes (paid) refunded		(210)	132	(140)
Cash Flows From Investing Activities
Capital expenditures incurred - E&P		(1,852)	(1,638)	(3,749)
Increase (decrease) in related liabilities - E&P		64	(336)	(203)
Additions to property, plant and equipment - E&P		(1,788)	(1,974)	(3,952)
Capital expenditures incurred - Midstream		(121)	(283)	(300)
Increase (decrease) in related liabilities - Midstream		(28)	6	(69)
Additions to property, plant and equipment - Midstream		(149)	(277)	(369)
Cash Flows From Financing Activities
Proceeds from sale of interest in Hess Infrastructure Partners (HIP)	$ 2,628	0	0	2,628
Distributions to noncontrolling interests		(243)	(23)	(332)
Noncontrolling interests, net related to Continuing operations		$ (243)	$ (23)	$ 2,296