Statement of Consolidated Equity - USD ($) $ in Millions	Total	Mandatory Convertible Preferred Stock	Common Stock	Capital in Excess of Par	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Total Hess Stockholders' Equity	Noncontrolling Interests
Balance at Dec. 31, 2017	$ 12,354	$ 1	$ 315	$ 5,824	$ 5,597	$ (686)	$ 11,051	$ 1,303
Cumulative effect of adoption of new accounting standards at Dec. 31, 2017	0	0	0	0	1	(1)	0	0
Net income (loss)	(149)	0	0	0	(278)	0	(278)	129
Other comprehensive income (loss)	185	0	0	0	0	185	185	0
Share-based compensation	84	0	1	83	0	0	84	0
Dividends on preferred stock	(34)	0	0	0	(34)	0	(34)	0
Dividends on common stock	(228)	0	0	0	(228)	0	(228)	0
Common stock acquired and retired	(1,130)	0	(20)	(462)	(648)	0	(1,130)	0
Noncontrolling interests, net	(36)	0	0	0	0	0	0	(36)
Balance at Sep. 30, 2018	11,046	1	296	5,445	4,410	(502)	9,650	1,396
Balance at Jun. 30, 2018	11,336	1	300	5,501	4,692	(522)	9,972	1,364
Net income (loss)	3	0	0	0	(42)	0	(42)	45
Other comprehensive income (loss)	20	0	0	0	0	20	20	0
Share-based compensation	36	0	0	36	0	0	36	0
Dividends on preferred stock	(11)	0	0	0	(11)	0	(11)	0
Dividends on common stock	(75)	0	0	0	(75)	0	(75)	0
Common stock acquired and retired	(250)	0	(4)	(92)	(154)	0	(250)	0
Noncontrolling interests, net	(13)	0	0	0	0	0	0	(13)
Balance at Sep. 30, 2018	11,046	1	296	5,445	4,410	(502)	9,650	1,396
Balance at Dec. 31, 2018	10,888	1	291	5,386	4,257	(306)	9,629	1,259
Net income (loss)	(57)	0	0	0	(186)	0	(186)	129
Other comprehensive income (loss)	(470)	0	0	0	0	(470)	(470)	0
Preferred stock conversion	0	(1)	12	(11)	0	0	0	0
Share-based compensation	92	0	2	90	0	0	92	0
Dividends on preferred stock	(4)	0	0	0	(4)	0	(4)	0
Dividends on common stock	(231)	0	0	0	(231)	0	(231)	0
Sale of water business to Hess Infrastructure Partners	0	0	0	78	0	0	78	(78)
Noncontrolling interests, net	(41)	0	0	0	0	0	0	(41)
Balance at Sep. 30, 2019	10,177	0	305	5,543	3,836	(776)	8,908	1,269
Balance at Jun. 30, 2019	10,531	0	304	5,513	4,125	(648)	9,294	1,237
Net income (loss)	(166)	0	0	0	(212)	0	(212)	46
Other comprehensive income (loss)	(128)	0	0	0	0	(128)	(128)	0
Share-based compensation	31	0	1	30	0	0	31	0
Dividends on common stock	(77)	0	0	0	(77)	0	(77)	0
Noncontrolling interests, net	(14)	0	0	0	0	0	0	(14)
Balance at Sep. 30, 2019	$ 10,177	$ 0	$ 305	$ 5,543	$ 3,836	$ (776)	$ 8,908	$ 1,269