Statement of Consolidated Equity - USD ($) $ in Millions	Total	Cumulative Effect, Period of Adoption, Adjustment	Mandatory Convertible Preferred Stock	Common Stock	Capital in Excess of Par	Retained Earnings	Retained Earnings Cumulative Effect, Period of Adoption, Adjustment	Accumulated Other Comprehensive Income (Loss)	Accumulated Other Comprehensive Income (Loss) Cumulative Effect, Period of Adoption, Adjustment	Total Hess Stockholders' Equity	Total Hess Stockholders' Equity Cumulative Effect, Period of Adoption, Adjustment	Noncontrolling Interests
Balance at Dec. 31, 2017	$ 12,354	$ 0	$ 1	$ 315	$ 5,824	$ 5,597	$ 101	$ (686)	$ (101)	$ 11,051	$ 0	$ 1,303
Net income (loss)	(115)					(282)				(282)		167
Other comprehensive income (loss)	481							481		481
Share-based compensation	104			1	103					104
Dividends on preferred stock	(46)					(46)				(46)
Dividends on common stock	(299)					(299)				(299)
Common stock acquired and retired	(1,380)			(25)	(541)	(814)				(1,380)
Noncontrolling interests, net	(211)											(211)
Balance at Dec. 31, 2018	10,888		1	291	5,386	4,257		(306)		9,629		1,259
Net income (loss)	(240)					(408)				(408)		168
Other comprehensive income (loss)	(393)							(393)		(393)
Preferred stock conversion	0		(1)	12	(11)					0
Share-based compensation	125			2	123					125
Dividends on preferred stock	(4)					(4)				(4)
Dividends on common stock	(310)					(310)				(310)
Conversion of Midstream structure	(7)				15					15		(22)
Sale of water business to Hess Infrastructure Partners	0				78					78		(78)
Noncontrolling interests, net	(353)											(353)
Balance at Dec. 31, 2019	9,706		0	305	5,591	3,535		(699)		8,732		974
Net income (loss)	(2,839)					(3,093)				(3,093)		254
Other comprehensive income (loss)	(56)							(56)		(56)
Share-based compensation	90			2	93	(5)				90
Dividends on common stock	(307)					(307)				(307)
Noncontrolling interests, net	(259)											(259)
Balance at Dec. 31, 2020	$ 6,335		$ 0	$ 307	$ 5,684	$ 130		$ (755)		$ 5,366		$ 969