Condensed Consolidated Statements of Comprehensive Income (Parenthetical) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Foreign currency translation adjustments, tax	$ (2)	$ (2)	$ (1)	$ 9
Available-for-sale securities, tax	(1)	(4)	(3)	(4)
Changes in the fair value of cash flow hedges, tax	0	(3)	0	(5)
Defined benefit pension plan adjustments, tax	$ 1	$ (6)	$ 1	$ (16)