Consolidated Statements of Income - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Revenues and other income:
Sales and other operating revenues, including related party	$ 1,307	$ 2,270	$ 2,587	$ 4,419
Marketing revenues	183	618	387	1,159
Income from equity method investments	26	120	62	257
Gain Loss On Disposal Of Assets	0	(87)
Net gain (loss) on disposal of assets			1	(85)
Other income	15	20	26	40
Total revenues and other income	1,531	2,941	3,063	5,790
Costs and expenses:
Production	450	562	894	1,104
Marketing, including purchases from related parties	182	614	387	1,156
Other operating	81	101	188	204
Exploration	111	145	201	218
Depreciation, depletion and amortization	751	680	1,572	1,323
Impairments	44	4	44	21
Taxes other than income	78	109	145	204
General and administrative	168	139	339	326
Total costs and expenses	1,865	2,354	3,770	4,556
Income (loss) from operations	(334)	587	(707)	1,234
Net interest and other	(58)	(76)	(105)	(125)
Income (loss) from continuing operations before income taxes	(392)	511	(812)	1,109
Provision (benefit) for income taxes	(6)	151	(150)	351
Income (loss) from continuing operations	(386)	360	(662)	758
Discontinued operations	0	180	0	931
Net income (loss)	$ (386)	$ 540	$ (662)	$ 1,689
Basic:
Income (loss) from continuing operations per basic share	$ (0.57)	$ 0.53	$ (0.98)	$ 1.11
Discontinued operations per basic share	0.00	0.27	0.00	1.36
Net income (loss), per basic share	(0.57)	0.80	(0.98)	2.47
Diluted:
Income (loss) from continuing operations per diluted share	(0.57)	0.53	(0.98)	1.10
Discontinued operations per diluted share	0.00	0.27	0.00	1.36
Net income (loss), per diluted share	(0.57)	0.80	(0.98)	2.46
Dividends paid, per share	$ 0.21	$ 0.19	$ 0.42	$ 0.38
Weighted average common shares outstanding, basic	677	676	676	684
Weighted average common shares outstanding, diluted	677	679	676	688