Statement of Comprehensive Income (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Statement of Comprehensive Income [Abstract]
Net income	$ 1,679	$ 2,870	$ 2,071
Other Comprehensive Income:
Foreign currency translation adjustments	(193)	94	(141)
Pension and other postretirement benefit adjustments, net of tax	284	(25)	(62)
Comprehensive Income	$ 1,770	$ 2,939	$ 1,868