Schedule of Property and Equipment (Detail) (USD $) In Millions, unless otherwise specified	Dec. 27, 2014	Dec. 28, 2013	Dec. 29, 2012
Property, Plant and Equipment [Line Items]
Property and equipment, Gross	$ 2,744	$ 2,955
Less accumulated depreciation	(1,781)	(1,646)
Total	963	1,309	856
Land
Property, Plant and Equipment [Line Items]
Property and equipment, Gross	88	101
Buildings
Property, Plant and Equipment [Line Items]
Property and equipment, Gross	431	469
Leasehold Improvements
Property, Plant and Equipment [Line Items]
Property and equipment, Gross	745	780
Furniture, fixtures and equipment
Property, Plant and Equipment [Line Items]
Property and equipment, Gross	$ 1,480	$ 1,605