Segment Information - Financial Data by Operating Segment (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Segment Reporting Information [Line Items]
Sales and Other Operating Revenues - Third-parties	$ 1,346	$ 1,258
Intersegment Revenues	0	0
Total sales and other operating revenues	1,346	1,258
Net Income (Loss) attributable to Hess Corporation	(106)	(324)
Depreciation, Depletion and Amortization	417	737
Provision (Benefit) for Income Taxes	73	(13)
Capital Expenditures	391	370
Identifiable assets	22,072		$ 23,112
Exploration and Production
Segment Reporting Information [Line Items]
Total sales and other operating revenues	1,346
Identifiable assets	15,624		15,613
Midstream
Segment Reporting Information [Line Items]
Total sales and other operating revenues	167
Identifiable assets	3,375		3,329
Corporate, Interest and Other
Segment Reporting Information [Line Items]
Identifiable assets	3,073		$ 4,170
Operating Segments | Exploration and Production
Segment Reporting Information [Line Items]
Sales and Other Operating Revenues - Third-parties	1,346	1,256
Intersegment Revenues	0	0
Total sales and other operating revenues	1,346	1,256
Net Income (Loss) attributable to Hess Corporation	(25)	(233)
Depreciation, Depletion and Amortization	385	703
Provision (Benefit) for Income Taxes	95	(20)
Capital Expenditures	354	342
Operating Segments | Midstream
Segment Reporting Information [Line Items]
Sales and Other Operating Revenues - Third-parties	0	2
Intersegment Revenues	167	147
Total sales and other operating revenues	167	149
Net Income (Loss) attributable to Hess Corporation	28	18
Depreciation, Depletion and Amortization	31	32
Provision (Benefit) for Income Taxes	9	11
Capital Expenditures	37	28
Operating Segments | Corporate, Interest and Other
Segment Reporting Information [Line Items]
Sales and Other Operating Revenues - Third-parties	0	0
Intersegment Revenues	0	0
Total sales and other operating revenues	0	0
Net Income (Loss) attributable to Hess Corporation	(109)	(109)
Depreciation, Depletion and Amortization	1	2
Provision (Benefit) for Income Taxes	(31)	(4)
Capital Expenditures	0	0
Eliminations
Segment Reporting Information [Line Items]
Sales and Other Operating Revenues - Third-parties	0	0
Intersegment Revenues	(167)	(147)
Total sales and other operating revenues	(167)	(147)
Net Income (Loss) attributable to Hess Corporation	0	0
Depreciation, Depletion and Amortization	0	0
Provision (Benefit) for Income Taxes	0	0
Capital Expenditures	$ 0	$ 0