STATEMENT OF CONSOLIDATED COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Statement of Comprehensive Income [Abstract]
Net Income (Loss)	$ 336	$ (2,366)
Derivatives designated as cash flow hedges
Effect of hedge (gains) losses reclassified to income	51	(64)
Income taxes on effect of hedge (gains) losses reclassified to income	0	0
Net effect of hedge (gains) losses reclassified to income	51	(64)
Change in fair value of cash flow hedges	(102)	990
Income taxes on change in fair value of cash flow hedges	0	0
Net change in fair value of cash flow hedges	(102)	990
Change in derivatives designated as cash flow hedges, after taxes	(51)	926
Pension and other postretirement plans
(Increase) reduction in unrecognized actuarial losses	14	0
Income taxes on actuarial changes in plan liabilities	0	0
(Increase) reduction in unrecognized actuarial losses, net	14	0
Amortization of net actuarial losses	16	12
Income taxes on amortization of net actuarial losses	0	0
Net effect of amortization of net actuarial losses	16	12
Change in pension and other postretirement plans, after taxes	30	12
Other Comprehensive Income (Loss)	(21)	938
Comprehensive Income (Loss)	315	(1,428)
Less: Comprehensive income (loss) attributable to noncontrolling interests	84	67
Comprehensive Income (Loss) Attributable to Hess Corporation	$ 231	$ (1,495)