Acquisitions, Intangible Assets And Goodwill - Additional Information (Detail) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 05, 2015 USD ($)	Jun. 29, 2014 USD ($)	Jul. 05, 2015 USD ($)	Jun. 29, 2014 USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
Number of Businesses Acquired			0
Amortization expense	$ 29	$ 31	$ 59	$ 61
Finite-Lived Intangible Assets, Amortization Expense, Remainder of Fiscal Year	$ 117		$ 117