Accumulated Other Comprehensive Income Activity, Net of Tax (Detail) - USD ($) $ in Millions	3 Months Ended			9 Months Ended
	Sep. 26, 2015	Mar. 28, 2015	Sep. 27, 2014	Sep. 26, 2015	Sep. 27, 2014
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance		$ 107		$ 107
Other comprehensive loss activity before reclassifications				(73)
Reclassifications from Accumulated other comprehensive (loss) to net loss	$ 1	(1)
Net other comprehensive loss	(22)		$ (55)	(73)	$ (46)
Ending Balance	34			34
Foreign Currency Translation Adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance		186		186
Other comprehensive loss activity before reclassifications				(73)
Reclassifications from Accumulated other comprehensive (loss) to net loss	1	(1)
Net other comprehensive loss				(73)
Ending Balance	113			113
Change in Deferred Pension
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance		$ (79)		(79)
Ending Balance	$ (79)			$ (79)