Impact of Restructuring Actions on Corporate Business Segments and Unallocated Corporate Expenses (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Sep. 29, 2012	Oct. 01, 2011
Restructuring Cost and Reserve [Line Items]
Increase in general corporate expense	$ 11	$ 30
Total	7	39
Retail
Restructuring Cost and Reserve [Line Items]
(Increase) Decrease in operating segment income	(3)	8
Food Service Other
Restructuring Cost and Reserve [Line Items]
(Increase) Decrease in operating segment income	(2)	1
Australian Bakery
Restructuring Cost and Reserve [Line Items]
(Increase) Decrease in operating segment income	1
Operating Segments
Restructuring Cost and Reserve [Line Items]
(Increase) Decrease in operating segment income	$ (4)	$ 9