Schedule of Stockholders' Equity (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 01, 2017	Jun. 25, 2016	Jul. 01, 2017	Jun. 25, 2016
Stockholders Equity [Line Items]
Beginning Balance			$ 1,852
Net income	$ 24	$ 210	140	$ 256
Repurchase of common stock for treasury	(7)		(17)
Dividends paid on common stock			(26)
Share purchase for taxes, net of proceeds on employee-related plans			(14)
Other comprehensive income	17	$ 5	23	$ 11
Amortization of long-term incentive stock grants			17
Ending Balance	$ 1,975		$ 1,975