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 Millions, $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Net income (loss) attributable to Hess Corporation Common Stockholders:
Net income (loss)	$ (2,366)	$ 75
Less: Net income (loss) attributable to noncontrolling interests	67	43
Less: Preferred stock dividends	0	4
Net Income (Loss) Attributable to Hess Corporation Common Stockholders	$ (2,433)	$ 28
Weighted average number of common shares outstanding:
Basic	304.0	297.4
Diluted	304.0	299.7
Restricted Common Stock
Weighted average number of common shares outstanding:
Effect of dilutive securities	0.0	1.2
Stock Options
Weighted average number of common shares outstanding:
Effect of dilutive securities	0.0	0.2
Performance Share Units
Weighted average number of common shares outstanding:
Effect of dilutive securities	0.0	0.9