Accumulated Other Comprehensive Income Activity, Net of Tax (Detail) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 27, 2015	Mar. 28, 2015	Jun. 28, 2014	Jun. 27, 2015	Jun. 28, 2014
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance		$ 107		$ 107
Other comprehensive loss activity before reclassifications				(50)
Reclassifications from Accumulated other comprehensive income (loss) to net income		(1)
Net other comprehensive loss	$ 3		$ 7	(51)	$ 8
Ending Balance	56			56
Foreign Currency Translation Adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance		186		186
Other comprehensive loss activity before reclassifications				(50)
Reclassifications from Accumulated other comprehensive income (loss) to net income		(1)
Net other comprehensive loss				(51)
Ending Balance	135			135
Change in Deferred Pension
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance		$ (79)		(79)
Ending Balance	$ (79)			$ (79)