Segment Information - Financial Data by Operating Segment (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Segment Reporting Information [Line Items]
Sales and Other Operating Revenues - Third parties	$ 1,370	$ 1,177	$ 3,863	$ 3,374
Intersegment Revenues	0	0	0	0
Sales and Other Operating Revenues	1,370	1,177	3,863	3,374
Net Income (Loss) attributable to Hess Corporation	(624)	(339)	(1,397)	(1,240)
Depreciation, Depletion and Amortization	759	811	2,237	2,476
Impairment	2,503	0	2,503	0
Provision (Benefit) for Income Taxes	(1,974)	(316)	(1,995)	(967)
Capital Expenditures	553	471	1,426	1,512
Identifiable assets	26,600		26,600		$ 28,621
Exploration and Production
Segment Reporting Information [Line Items]
Identifiable assets	21,389		21,389		22,856
Midstream
Segment Reporting Information [Line Items]
Identifiable assets	3,012		3,012		3,165
Corporate, Interest and Other
Segment Reporting Information [Line Items]
Identifiable assets	2,199		2,199		$ 2,600
Operating Segments | Exploration and Production
Segment Reporting Information [Line Items]
Sales and Other Operating Revenues - Third parties	1,369	1,175	3,857	3,368
Intersegment Revenues	0	0	0	0
Sales and Other Operating Revenues	1,369	1,175	3,857	3,368
Net Income (Loss) attributable to Hess Corporation	(474)	(234)	(1,061)	(1,015)
Depreciation, Depletion and Amortization	709	779	2,120	2,381
Impairment	2,503		2,503
Provision (Benefit) for Income Taxes	(1,969)	(252)	(2,003)	(840)
Capital Expenditures	526	381	1,351	1,318
Operating Segments | Midstream
Segment Reporting Information [Line Items]
Sales and Other Operating Revenues - Third parties	1	2	6	6
Intersegment Revenues	153	134	454	398
Sales and Other Operating Revenues	154	136	460	404
Net Income (Loss) attributable to Hess Corporation	(12)	13	22	40
Depreciation, Depletion and Amortization	29	30	93	88
Impairment	0		0
Provision (Benefit) for Income Taxes	(3)	9	18	25
Capital Expenditures	27	90	75	194
Operating Segments | Corporate, Interest and Other
Segment Reporting Information [Line Items]
Sales and Other Operating Revenues - Third parties	0	0	0	0
Intersegment Revenues	0	0	0	0
Sales and Other Operating Revenues	0	0	0	0
Net Income (Loss) attributable to Hess Corporation	(138)	(118)	(358)	(265)
Depreciation, Depletion and Amortization	21	2	24	7
Impairment	0		0
Provision (Benefit) for Income Taxes	(2)	(73)	(10)	(152)
Capital Expenditures	0	0	0	0
Eliminations
Segment Reporting Information [Line Items]
Sales and Other Operating Revenues - Third parties	0	0	0	0
Intersegment Revenues	(153)	(134)	(454)	(398)
Sales and Other Operating Revenues	(153)	(134)	(454)	(398)
Net Income (Loss) attributable to Hess Corporation	0	0	0	0
Depreciation, Depletion and Amortization	0	0	0	0
Impairment	0		0
Provision (Benefit) for Income Taxes	0	0	0	0
Capital Expenditures	$ 0	$ 0	$ 0	$ 0