Stockholders' Equity (Components Of Other Comprehensive Income) (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Equity [Abstract]
Net income (loss)	$ 26	$ (28)	$ 30	$ (74)
Currency translation adjustments	5	(37)	8	(60)
Net unrealized gain (loss) on available-for-sale securities	2	(1)	1	(1)
Net unrealized gain (loss) on cash flow hedges	(3)	1	(2)	1
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax	(1)	0	(1)	0
Other comprehensive income (loss)	5	(37)	8	(60)
Total comprehensive income (loss)	$ 31	$ (65)	$ 38	$ (134)