Segment Information - Financial Data by Operating Segment (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Segment Reporting Information [Line Items]
Operating Revenues - Third parties	$ 1,224	$ 1,953	$ 2,197	$ 3,491
Intersegment Revenues	0	0	0	0
Operating Revenues	1,224	1,953	2,197	3,491
Net Income (Loss) from Continuing Operations Attributable to Hess Corporation	(392)	(553)	(901)	(929)
Depreciation, Depletion and Amortization	797	1,028	1,665	1,984
Provision (Benefit) for Income Taxes	(305)	(156)	(651)	(507)
Capital Expenditures	501	1,013	1,041	2,250
Identifiable assets	34,234		34,234		$ 34,157
Exploration and Production
Segment Reporting Information [Line Items]
Operating Revenues - Third parties	1,224	1,953	2,197	3,491
Intersegment Revenues	0	0	0	0
Operating Revenues	1,224	1,953	2,197	3,491
Net Income (Loss) from Continuing Operations Attributable to Hess Corporation	(328)	(502)	(779)	(816)
Depreciation, Depletion and Amortization	770	1,004	1,612	1,936
Provision (Benefit) for Income Taxes	(273)	(120)	(587)	(431)
Capital Expenditures	434	948	939	2,145
Identifiable assets	28,769		28,769		28,863
Bakken Midstream
Segment Reporting Information [Line Items]
Operating Revenues - Third parties	0	0	0	0
Intersegment Revenues	119	145	238	275
Operating Revenues	119	145	238	275
Net Income (Loss) from Continuing Operations Attributable to Hess Corporation	11	32	25	59
Depreciation, Depletion and Amortization	25	22	48	43
Provision (Benefit) for Income Taxes	7	19	15	35
Capital Expenditures	67	65	102	105
Identifiable assets	2,835		2,835		2,754
Corporate, Interest and Other
Segment Reporting Information [Line Items]
Operating Revenues - Third parties	0	0	0	0
Intersegment Revenues	0	0	0	0
Operating Revenues	0	0	0	0
Net Income (Loss) from Continuing Operations Attributable to Hess Corporation	(75)	(83)	(147)	(172)
Depreciation, Depletion and Amortization	2	2	5	5
Provision (Benefit) for Income Taxes	(39)	(55)	(79)	(111)
Capital Expenditures	0	0	0	0
Identifiable assets	2,630		2,630		$ 2,540
Eliminations
Segment Reporting Information [Line Items]
Operating Revenues - Third parties	0	0	0	0
Intersegment Revenues	(119)	(145)	(238)	(275)
Operating Revenues	(119)	(145)	(238)	(275)
Net Income (Loss) from Continuing Operations Attributable to Hess Corporation	0	0	0	0
Depreciation, Depletion and Amortization	0	0	0	0
Provision (Benefit) for Income Taxes	0	0	0	0
Capital Expenditures	$ 0	$ 0	$ 0	$ 0