STATEMENT OF CONSOLIDATED COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Statement of Comprehensive Income [Abstract]
Net Income (Loss)	$ 13	$ (263)	$ 349	$ (2,629)
Derivatives designated as cash flow hedges
Effect of hedge (gains) losses reclassified to income	64	(228)	115	(292)
Income taxes on effect of hedge (gains) losses reclassified to income	0	0	0	0
Net effect of hedge (gains) losses reclassified to income	64	(228)	115	(292)
Change in fair value of cash flow hedges	(129)	(214)	(231)	776
Income taxes on change in fair value of cash flow hedges	0	0	0	0
Net change in fair value of cash flow hedges	(129)	(214)	(231)	776
Change in derivatives designated as cash flow hedges, after taxes	(65)	(442)	(116)	484
Pension and other postretirement plans
(Increase) reduction in unrecognized actuarial losses	(11)	4	3	4
Income taxes on actuarial changes in plan liabilities	0	0	0	0
(Increase) reduction in unrecognized actuarial losses, net	(11)	4	3	4
Amortization of net actuarial losses	16	12	32	24
Income taxes on amortization of net actuarial losses	0	0	0	0
Net effect of amortization of net actuarial losses	16	12	32	24
Change in pension and other postretirement plans, after taxes	5	16	35	28
Other Comprehensive Income (Loss)	(60)	(426)	(81)	512
Comprehensive Income (Loss)	(47)	(689)	268	(2,117)
Less: Comprehensive income (loss) attributable to noncontrolling interests	86	57	170	124
Comprehensive Income (Loss) Attributable to Hess Corporation	$ (133)	$ (746)	$ 98	$ (2,241)