Leases - Additional Information (Detail) (USD $) In Millions, unless otherwise specified			12 Months Ended
	Dec. 28, 2012	Dec. 30, 2011	Dec. 28, 2012 Lower Limit Contract	Dec. 28, 2012 Upper Limit	Dec. 28, 2012 Primary Obligations Operating Leases	Dec. 28, 2012 Consolidated Subsidiaries Non Recourse to Parent Primary Obligations Operating Leases	Dec. 28, 2012 Secondarily Liable CTF Entity Variable Interest Entity, Not Primary Beneficiary
Operating Leased Assets [Line Items]
Leases, initial terms				20 years
Number of lease renewal options			1
Renewal option period			5 years	10 years
Obligations of consolidated subsidiaries					$ 1,250	$ 272	$ 17
Minimum operating lease payments - 2013					126		11
Minimum operating lease payments - 2014					126		6
Present value of net minimum lease payments associated with capital leases	$ 50	$ 64