Other Comprehensive (Loss) Income and Shareholders' (Deficit) Equity - Accumulated Other Comprehensive (Loss) Income Activity (Detail) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance at beginning of period				$ (70)
Reclassification of losses (gains) from accumulated other comprehensive loss		$ (3)	$ 1	(7)	$ 3
Balance at end of period		(120)		(120)
Other comprehensive income (loss) before reclassification related to foreign current translation adjustment, gain on intra-equity foreign currency transaction				33	36
Foreign Currency Translation Adjustments
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance at beginning of period				(72)	(31)
Other comprehensive (loss) income before reclassifications	[1]			(47)	(18)
Reclassification of losses (gains) from accumulated other comprehensive loss				3	0
Net other comprehensive loss				(44)	(18)
Balance at end of period		(116)	(49)	(116)	(49)
Derivative Instrument Adjustments
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance at beginning of period				(9)	(19)
Other comprehensive (loss) income before reclassifications				9	4
Reclassification of losses (gains) from accumulated other comprehensive loss				(10)	3
Net other comprehensive loss				(1)	7
Balance at end of period		(10)	(12)	(10)	(12)
Available-For-Sale Securities Unrealized Adjustments
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance at beginning of period				11	6
Other comprehensive (loss) income before reclassifications				(5)	2
Reclassification of losses (gains) from accumulated other comprehensive loss				0	0
Net other comprehensive loss				(5)	2
Balance at end of period		6	8	6	8
Accumulated Other Comprehensive Loss
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance at beginning of period				(70)	(44)
Other comprehensive (loss) income before reclassifications				(43)	(12)
Reclassification of losses (gains) from accumulated other comprehensive loss				(7)	3
Net other comprehensive loss				(50)	(9)
Balance at end of period		$ (120)	$ (53)	$ (120)	$ (53)

[1] Other comprehensive (loss) income before reclassifications for foreign currency translation adjustments includes a gain on intra-entity foreign currency transactions that are of a long-term investment nature of $33 million for the 2015 first three quarters and $36 million for the 2014 first three quarters.