Segment Information (Details 2) (USD $) In Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Reconciliation of segment income to net income:
Segment income	$ 477	$ 569	$ 1,950	$ 1,494
Items not allocated to segments, net of income taxes:
Corporate and other unallocated items	(79)	(50)	(215)	(130)
Foreign currency remeasurement of taxes	23	(37)	6	33
Impairments		(15)	(195)	(286)
Loss on early extinguishment of debt, after-tax			(176)	(57)
Tax effect of subsidiary restructuring			(122)
Deferred income tax items	(15)		(65)	(45)
Deferred tax expense due to deferred tax write-off related to health care reform acts				(45)
Water abatement costs			(48)
Gain on dispositions, not allocated to segments	(1)		23	449
Income from continuing operations	405	467	1,158	1,458
Discontinued operations	0	229	1,239	404
Net income	405	696	2,397	1,862
Reconciliation of total revenues to sales and other operating revenues (including consumer excise taxes) as reported in the consolidated statements of income:
Total revenues	3,649	2,854	11,014	8,328
Less: Sales to related parties	16	15	45	41
Sales and other operating revenues	$ 3,633	$ 2,839	$ 10,969	$ 8,287