Consolidated Statements of Comprehensive Income (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Consolidated Statements of Comprehensive Income
Net income	$ 5,903		$ 4,598		$ 6,771
Other comprehensive income (loss) items:
Foreign currency translation gains (losses)	2		(25)		(11)
Realized foreign currency translation losses	28
Unrealized (losses) gains on derivatives	(3)	[1]	16	[1]	14	[1]
Pension and postretirement gains (losses)	176	[2]	14	[2]	(60)	[2]
Reclassification to income of realized (gains) losses on derivatives	(4)	[3]	(24)	[3]	98	[3]
Other comprehensive income (loss), net of tax	199	[4]	(19)	[4]	41	[4]
Comprehensive income	$ 6,102		$ 4,579		$ 6,812

[1] Net of tax of $2, $(9) and $(7) in 2013, 2012 and 2011, respectively.

[2] Net of tax of $(101), $(8) and $34 in 2013, 2012 and 2011, respectively. See Note 13, Retirement and Postretirement Benefit Plans, for additional information.

[3] Net of tax of $2, $14 and $(56) in 2013, 2012 and 2011, respectively.

[4] There were no other comprehensive income (loss) items related to noncontrolling interests in 2013, 2012 and 2011.