Outstanding and Weighted Average Common Shares - Net Income (Loss) and Weighted Average Number of Common Shares Used in Computation of Basic and Diluted Earnings Per Share (Detail) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Net Income (Loss) Attributable to Hess Corporation Common Stockholders:
Net Income (Loss)	$ (240)	$ (115)	$ (3,941)
Less: Net income (loss) attributable to noncontrolling interests	168	167	133
Less: Preferred stock dividends	4	46	46
Net Income (Loss) Attributable to Hess Corporation Common Stockholders	$ (412)	$ (328)	$ (4,120)
Weighted Average Number of Common Shares Outstanding:
Shares outstanding – Basic	301.2	298.2	314.1
Diluted	301.2	298.2	314.1
Basic	$ (1.37)	$ (1.10)	$ (13.12)
Diluted	$ (1.37)	$ (1.10)	$ (13.12)
Restricted Common Stock
Weighted Average Number of Common Shares Outstanding:
Antidilutive shares excluded from computation of diluted shares	2.2	2.9	3.3
Stock Options
Weighted Average Number of Common Shares Outstanding:
Antidilutive shares excluded from computation of diluted shares	4.7	5.5	6.4
Performance Share Units
Weighted Average Number of Common Shares Outstanding:
Antidilutive shares excluded from computation of diluted shares	1.7	1.1	0.6
Common Shares from Conversion of Preferred Stocks
Weighted Average Number of Common Shares Outstanding:
Antidilutive shares excluded from computation of diluted shares	0.0	12.7	12.8
Restricted Common Stock
Weighted Average Number of Common Shares Outstanding:
Effect of dilutive securities	0.0	0.0	0.0
Stock Options
Weighted Average Number of Common Shares Outstanding:
Effect of dilutive securities	0.0	0.0	0.0
Performance Share Units
Weighted Average Number of Common Shares Outstanding:
Effect of dilutive securities	0.0	0.0	0.0
Mandatory Convertible Preferred Stock
Weighted Average Number of Common Shares Outstanding:
Effect of dilutive securities	0.0	0.0	0.0