Segment Information (Details) (USD $) In Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010	Dec. 31, 2010
Operating revenues
Less: Transfers between affiliates	$ (32)	$ (33)	$ (67)	$ (72)
Sales (excluding excise taxes) and other operating revenues	9,853	7,732	20,068	16,991
Net income (loss) attributable to Hess Corporation
Net income (loss) attributable to Hess Corporation by operating segment	607	375	1,536	913
Identifiable assets by operating segment were as follows:
TOTAL ASSETS	36,991		36,991		35,396
Segment Information (Textuals) [Abstract]
Excise and Similar Taxes	590	550	1,150	1,090
Exploration and Production [Member]
Operating revenues
Segment Revenues Gross	2,856	2,252	5,543	4,393
Net income (loss) attributable to Hess Corporation
Net income (loss) attributable to Hess Corporation by operating segment	747	488	1,726	1,039
Identifiable assets by operating segment were as follows:
TOTAL ASSETS	30,208		30,208		28,242
Marketing and Refining [Member]
Operating revenues
Segment Revenues Gross	7,029	5,513	14,592	12,670
Net income (loss) attributable to Hess Corporation
Net income (loss) attributable to Hess Corporation by operating segment	(39)	(19)	0	68
Identifiable assets by operating segment were as follows:
TOTAL ASSETS	5,760		5,760		6,377
Corporate, including interest [Member]
Net income (loss) attributable to Hess Corporation
Net income (loss) attributable to Hess Corporation by operating segment	(101)	(94)	(190)	(194)
Identifiable assets by operating segment were as follows:
TOTAL ASSETS	$ 1,023		$ 1,023		$ 777