Merger and Integration Activity (Detail) (USD $) In Millions, unless otherwise specified	6 Months Ended				3 Months Ended	6 Months Ended	3 Months Ended	6 Months Ended	3 Months Ended		6 Months Ended
	Jun. 15, 2013	Jun. 16, 2012	Jun. 15, 2013 Severance And Other Employee Costs	Jun. 15, 2013 Other Costs	Jun. 16, 2012 Europe	Jun. 16, 2012 Europe	Jun. 16, 2012 Corporate Unallocated Expenses	Jun. 16, 2012 Corporate Unallocated Expenses	Jun. 15, 2013 Selling, General and Administrative Expenses Wimm Bill Dann Acquisition Europe	Jun. 16, 2012 Selling, General and Administrative Expenses Wimm Bill Dann Acquisition Europe	Jun. 16, 2012 Selling, General and Administrative Expenses Wimm Bill Dann Acquisition Europe
Restructuring Reserve [Roll Forward]
Liability as of December 29, 2012	$ 24		$ 18	$ 6
2013 merger and integration charges (a)	0	5	(2)	2	1	3	2	2	(1)	3	5
Cash payments	(17)	(47)	(13)	(4)
Non-cash charges and other	(1)		(1)	0
Liability as of June 15, 2013	$ 6		$ 2	$ 4