STATEMENT OF CONSOLIDATED COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Statement of Comprehensive Income [Abstract]
Net Income (Loss)	$ (183)	$ (166)	$ (2,812)	$ (57)
Derivatives designated as cash flow hedges
Effect of hedge (gains) losses reclassified to income	(143)	(2)	(435)	(3)
Income taxes on effect of hedge (gains) losses reclassified to income	0	0	0	0
Net effect of hedge (gains) losses reclassified to income	(143)	(2)	(435)	(3)
Change in fair value of cash flow hedges	(44)	12	732	(334)
Income taxes on change in fair value of cash flow hedges	0	0	0	0
Net change in fair value of cash flow hedges	(44)	12	732	(334)
Change in derivatives designated as cash flow hedges, after taxes	(187)	10	297	(337)
Pension and other postretirement plans
(Increase) reduction in unrecognized actuarial losses	0	(239)	4	(257)
Income taxes on actuarial changes in plan liabilities	0	0	0	0
(Increase) reduction in unrecognized actuarial losses, net	0	(239)	4	(257)
Amortization of net actuarial losses	11	101	35	124
Income taxes on amortization of net actuarial losses	0	0	0	0
Net effect of amortization of net actuarial losses	11	101	35	124
Change in pension and other postretirement plans, after taxes	11	(138)	39	(133)
Other Comprehensive Income (Loss)	(176)	(128)	336	(470)
Comprehensive Income (Loss)	(359)	(294)	(2,476)	(527)
Less: Comprehensive income (loss) attributable to noncontrolling interests	60	46	184	129
Comprehensive Income (Loss) Attributable to Hess Corporation	$ (419)	$ (340)	$ (2,660)	$ (656)