Property and Equipment - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jul. 01, 2017	Jun. 30, 2018	Jul. 01, 2017	Dec. 30, 2017
Property, Plant and Equipment [Line Items]
Property and equipment, accumulated depreciation	$ 2,021		$ 2,021		$ 1,926
Depreciation expense	$ 74	$ 70	$ 145	$ 139
Minimum
Property, Plant and Equipment [Line Items]
Estimated useful lives of assets			3 years
Maximum
Property, Plant and Equipment [Line Items]
Estimated useful lives of assets			40 years