Consolidated Statements Of Comprehensive Income (Loss) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Net income (loss)	$ (41)	$ (274)	$ 34	$ (137)
Other comprehensive income:
Foreign currency translation adjustments, net of tax of $(1), $4, $(14), and $(17)	111	30	41	16
Net change in unrealized gains on available-for-sale securities:
Unrealized gains (losses), net of tax of $(1), $(1), $3, and $(4)	1	5	(8)	11
Reclassification adjustment for losses (gains) included in “Other income (expense), net,” net of tax effect of $0, $1, $(1) and $2	1	(3)	0	(7)
Net unrealized gains (losses) on available-for-sale securities	2	2	(8)	4
Total other comprehensive income	113	32	33	20
Comprehensive income (loss)	$ 72	$ (242)	$ 67	$ (117)