Stockholders' Equity (Components Of Other Comprehensive Income) (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Equity [Abstract]
Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax	$ (18)	$ 5	$ (20)	$ 5
Other Comprehensive Income (Loss), Available-for-sale Securities, Tax	0	0	0	0
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax	(2)	0	(1)	(1)
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Tax	0	(12)	0	(12)
Net income	192	118	222	44
Currency translation adjustments (net of tax of $(18), $5, $(20), $5, respectively)	(79)	39	(71)	(21)
Net unrealized gain (loss) on available-for-sale securities (net of tax of $0, $0, $0, and $0, respectively)	0	2	1	1
Net unrealized gain (loss) on cash flow hedges (net of tax of $(2), $0, $(1), $(1), respectively)	3	0	1	1
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax	0	19	1	19
Other comprehensive income (loss)	(76)	60	(68)	0
Total comprehensive income	$ 116	$ 178	$ 154	$ 44