Statement of Consolidated Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Statement Of Income And Comprehensive Income [Abstract]
Net Income (Loss)	$ (115)	$ (3,941)	$ (6,076)
Derivatives designated as cash flow hedges
Effect of hedge (gains) losses reclassified to income	173	18	0
Income taxes on effect of hedge (gains) losses reclassified to income	0	0	0
Net effect of hedge (gains) losses reclassified to income	173	18	0
Change in fair value of cash flow hedges	330	(156)	0
Income taxes on change in fair value of cash flow hedges	(86)	0	0
Net change in fair value of cash flow hedges	244	(156)	0
Change in derivatives designated as cash flow hedges, after taxes	417	(138)	0
Pension and other postretirement plans
(Increase) reduction in unrecognized actuarial losses	29	35	(155)
Income taxes on actuarial changes in plan liabilities	(6)	0	20
(Increase) reduction in unrecognized actuarial losses, net	23	35	(135)
Amortization of net actuarial losses	41	77	60
Income taxes on amortization of net actuarial losses	0	0	(21)
Net effect of amortization of net actuarial losses	41	77	39
Change in pension and other postretirement plans, after taxes	64	112	(96)
Foreign currency translation adjustment
Foreign currency translation adjustment	0	144	56
Asset disposition	0	900	0
Change in foreign currency translation adjustment	0	1,044	56
Other Comprehensive Income (Loss)	481	1,018	(40)
Comprehensive Income (Loss)	366	(2,923)	(6,116)
Less: Comprehensive income (loss) attributable to noncontrolling interests	167	133	56
Comprehensive Income (Loss) Attributable to Hess Corporation	$ 199	$ (3,056)	$ (6,172)