Statement of Consolidated Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
CASH FLOWS FROM OPERATING ACTIVITIES:
NET INCOME (LOSS) INCLUDING NONCONTROLLING INTEREST	$ (23,528,000,000)	$ (5,060,000,000)	$ 2,288,000,000
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Loss (income) from discontinued operations	771,000,000	1,588,000,000	(308,000,000)
Depreciation, depletion, and amortization	29,372,000,000	9,720,000,000	5,866,000,000
Impairments	1,920,000,000	1,919,000,000	0
Asset retirement obligation accretion	145,000,000	154,000,000	211,000,000
Provision for (benefit from) deferred income taxes	(5,778,000,000)	(514,000,000)	309,000,000
Other	102,000,000	(51,000,000)	300,000,000
Changes in operating assets and liabilities:
Receivables	663,000,000	757,000,000	105,000,000
Inventories	21,000,000	(31,000,000)	(65,000,000)
Drilling advances	138,000,000	107,000,000	269,000,000
Deferred charges and other	(435,000,000)	(211,000,000)	(148,000,000)
Accounts payable	(489,000,000)	(216,000,000)	286,000,000
Accrued expenses	(156,000,000)	(572,000,000)	(467,000,000)
Deferred credits and noncurrent liabilities	88,000,000	(73,000,000)	39,000,000
NET CASH PROVIDED BY CONTINUING OPERATING ACTIVITIES	2,834,000,000	7,517,000,000	8,685,000,000
NET CASH PROVIDED BY DISCONTINUED OPERATIONS	150,000,000	944,000,000	1,150,000,000
NET CASH PROVIDED BY OPERATING ACTIVITIES	2,984,000,000	8,461,000,000	9,835,000,000
CASH FLOWS FROM INVESTING ACTIVITIES:
Additions to oil and gas property	(4,578,000,000)	(9,022,000,000)	(8,663,000,000)
Additions to gas gathering, transmission, and processing facilities	(233,000,000)	(881,000,000)	(464,000,000)
Leasehold and property acquisitions	(367,000,000)	(1,475,000,000)	(429,000,000)
Proceeds from sale of Kitimat LNG	854,000,000
Proceeds from sale of Yara Pilbara	391,000,000
Proceeds from sale of productive assets	391,000,000	1,262,000,000	3,702,000,000
Proceeds from Kitimat LNG transaction, net			396,000,000
Proceeds from sale of oil and gas properties, other	268,000,000	470,000,000	307,000,000
Other, net	6,000,000	(299,000,000)	(105,000,000)
NET CASH USED IN CONTINUING INVESTING ACTIVITIES	(3,659,000,000)	(8,585,000,000)	(5,256,000,000)
NET CASH PROVIDED BY (USED IN) DISCONTINUED OPERATIONS	4,335,000,000	(219,000,000)	(1,860,000,000)
NET CASH PROVIDED BY (USED IN) INVESTING ACTIVITIES	676,000,000	(8,804,000,000)	(7,116,000,000)
CASH FLOWS FROM FINANCING ACTIVITIES:
Commercial paper, credit facilities and bank notes, net	(1,570,000,000)	1,568,000,000	(509,000,000)
Payments on fixed rate debt	(939,000,000)		(2,072,000,000)
Distributions to noncontrolling interest	(129,000,000)	(140,000,000)
Proceeds from sale of noncontrolling interest			2,948,000,000
Dividends paid	(377,000,000)	(365,000,000)	(360,000,000)
Treasury stock activity, net		(1,864,000,000)	(997,000,000)
Other	53,000,000	49,000,000	21,000,000
NET CASH USED IN CONTINUING FINANCING ACTIVITIES	(2,962,000,000)	(752,000,000)	(969,000,000)
NET CASH USED IN DISCONTINUED OPERATIONS		(42,000,000)	(4,000,000)
NET CASH USED IN FINANCING ACTIVITIES	(2,962,000,000)	(794,000,000)	(973,000,000)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	698,000,000	(1,137,000,000)	1,746,000,000
CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR	769,000,000	1,906,000,000	160,000,000
CASH AND CASH EQUIVALENTS AT END OF PERIOD	1,467,000,000	769,000,000	1,906,000,000
SUPPLEMENTARY CASH FLOW DATA:
Interest paid, net of capitalized interest	246,000,000	134,000,000	192,000,000
Income taxes paid, net of refunds	$ 573,000,000	1,357,000,000	1,766,000,000
Deepwater Gulf of Mexico [Member]
CASH FLOWS FROM INVESTING ACTIVITIES:
Proceeds from sale of productive assets		1,360,000,000
Anadarko Basin and Southern Louisiana [Member]
CASH FLOWS FROM INVESTING ACTIVITIES:
Proceeds from sale of productive assets		$ 1,262,000,000
Gulf of Mexico Shelf [Member]
CASH FLOWS FROM INVESTING ACTIVITIES:
Proceeds from sale of productive assets			$ 3,702,000,000