Consolidated Statements of Income (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Revenues and other income:
Sales and other operating revenues, including related party	$ 2,316	$ 2,334	$ 6,735	$ 7,295
Marketing revenues	554	666	1,713	1,595
Income from equity method investments	89	114	346	309
Net loss on disposal of assets	(3)	(6)	(88)	(4)
Other income	15	19	55	38
Total revenues and other income	2,971	3,127	8,761	9,233
Costs and expenses:
Production	593	540	1,697	1,625
Marketing, including purchases from related parties	554	663	1,710	1,590
Other operating	99	115	303	283
Exploration	96	83	314	665
Depreciation, depletion and amortization	737	657	2,060	1,914
Impairments	109	11	130	49
Taxes other than income	115	89	319	264
General and administrative	160	143	486	465
Total costs and expenses	2,463	2,301	7,019	6,855
Income from operations	508	826	1,742	2,378
Net interest and other	(55)	(71)	(180)	(211)
Income from continuing operations before income taxes	453	755	1,562	2,167
Provision for income taxes	149	359	500	1,372
Income from continuing operations	304	396	1,062	795
Discontinued operations	127	173	1,058	583
Net income	$ 431	$ 569	$ 2,120	$ 1,378
Basic:
Income from continuing operations per basic share	$ 0.45	$ 0.56	$ 1.56	$ 1.13
Discontinued operations per basic share	$ 0.19	$ 0.24	$ 1.55	$ 0.82
Net income, per basic share	$ 0.64	$ 0.80	$ 3.11	$ 1.95
Diluted:
Income from continuing operations per diluted share	$ 0.45	$ 0.56	$ 1.55	$ 1.12
Discontinued operations per diluted share	$ 0.19	$ 0.24	$ 1.55	$ 0.82
Net income, per diluted share	$ 0.64	$ 0.80	$ 3.10	$ 1.94
Dividends paid, per share	$ 0.21	$ 0.19	$ 0.59	$ 0.53
Weighted average common shares outstanding, basic	675	707	681	708
Weighted average common shares outstanding, diluted	678	711	684	712