Consolidated Statements of Income - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Revenues and other income:
Sales and other operating revenues, including related party	$ 3,753	$ 4,951	$ 8,736
Marketing revenues	278	571	2,110
Income from equity method investments	175	145	424
Net gain (loss) on disposal of assets	389	120	(90)
Other income	55	74	78
Total revenues and other income	4,650	5,861	11,258
Costs and expenses:
Production	1,313	1,694	2,246
Marketing, including purchases from related parties	282	569	2,105
Other operating	511	438	462
Exploration	330	1,318	793
Depreciation, depletion and amortization	2,395	2,957	2,861
Impairment of Oil and Gas Properties	67	752	132
Taxes other than income	168	234	406
General and administrative	484	590	654
Total costs and expenses	5,550	8,552	9,659
Income from operations	(900)	(2,691)	1,599
Net interest and other	(335)	(267)	(238)
Income from continuing operations before income taxes	(1,235)	(2,958)	1,361
Provision for income taxes	905	(754)	392
Income from continuing operations	(2,140)	(2,204)	969
Discontinued operations	0	0	2,077
Net income	$ (2,140)	$ (2,204)	$ 3,046
Basic:
Income from continuing operations (in dollars per basic share)	$ (2.61)	$ (3.26)	$ 1.42
Discontinued operations (in dollars per basic share)	0.00	0.00	3.06
Net income (in dollars per basic share)	(2.61)	(3.26)	4.48
Diluted:
Income from continuing operations (in dollars per diluted share)	(2.61)	(3.26)	1.42
Discontinued operations (in dollars per diluted share)	0.00	0.00	3.04
Net income (in dollars per diluted share)	(2.61)	(3.26)	4.46
Dividends (in dollars per share)	$ 0.20	$ 0.68	$ 0.80
Weighted average shares:
Basic	819	677	680
Diluted	819	677	683