Consolidated Statements of Income (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Revenues and other income:
Sales and other operating revenues, including related party	$ 1,280	$ 2,149
Marketing revenues	204	541
Income from equity method investments	36	137
Net gain on disposal of assets	1	2
Other income	11	20
Total revenues and other income	1,532	2,849
Costs and expenses:
Production	444	542
Marketing, including purchases from related parties	205	542
Other operating	107	103
Exploration	90	73
Depreciation, depletion and amortization	821	643
Impairments	0	17
Taxes other than income	67	95
General and administrative	171	187
Total costs and expenses	1,905	2,202
Income (loss) from operations	(373)	647
Net interest and other	(47)	(49)
Income (loss) from continuing operations before income taxes	(420)	598
Provision (benefit) for income taxes	(144)	200
Income (loss) from continuing operations	(276)	398
Discontinued operations	0	751
Net income (loss)	$ (276)	$ 1,149
Basic:
Income (loss) from continuing operations per basic share	$ (0.41)	$ 0.58
Discontinued operations per basic share	$ 0.00	$ 1.08
Net income (loss), per basic share	$ (0.41)	$ 1.66
Diluted:
Income (loss) from continuing operations per diluted share	$ (0.41)	$ 0.57
Discontinued operations per diluted share	$ 0.00	$ 1.08
Net income (loss), per diluted share	$ (0.41)	$ 1.65
Dividends paid, per share	$ 0.21	$ 0.19
Weighted average common shares outstanding, basic	675	693
Weighted average common shares outstanding, diluted	675	696