Consolidated Statements of Comprehensive Income (unaudited) (USD $) In Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Consolidated Statements of Comprehensive Income
Net income	$ 405	$ 696	$ 2,397	$ 1,862
Post-retirement and post-employment plans
Change in actuarial gain (loss)	13	(24)	110	134
Spin-off downstream business			968
Income tax benefit (provision) on post-retirement and post-employment plans	6	10	(409)	(73)
Post-retirement and post-employment plans, net of tax	19	(14)	669	61
Derivative hedges
Net unrecognized gain (loss)	(1)	1	9	5
Spin-off downstream business			(7)
Income tax benefit (provision) on derivatives			(1)
Derivative hedges, net of tax	(1)	1	1	5
Foreign currency translation and other
Unrealized gain (loss)		(1)	(1)	(1)
Income tax provision on foreign currency translation and other		1		1
Foreign currency translation and other, net of tax			(1)
Other comprehensive income	18	(13)	669	66
Comprehensive income	$ 423	$ 683	$ 3,066	$ 1,928