Business And Geographic Segment Information (Schedule Of Segment Reporting - Earnings Before Interest And Taxes) (Details) (USD $) In Millions	12 Months Ended
	Jul. 31, 2011		Aug. 01, 2010		Aug. 02, 2009
Earnings before interest and taxes	$ 1,279		$ 1,348		$ 1,185
Impairment charge to certain European trademarks					67
U.S. Simple Meals [Member]
Earnings before interest and taxes	657		737		749
U.S. Beverages [Member]
Earnings before interest and taxes	182		206		178
Global Baking And Snacking [Member]
Earnings before interest and taxes	355		322		265
International Simple Meals And Beverages [Member]
Earnings before interest and taxes	185		161		69	[1]
North America Foodservice [Member]
Earnings before interest and taxes	82		55		53
Corporate [Member]
Earnings before interest and taxes	(119)	[2]	(121)	[2]	(107)	[2]
Restructuring Charges And Related Costs [Member]
Earnings before interest and taxes	$ (63)	[3]	$ (12)	[3]	$ (22)	[3]

[1] Earnings before interest and taxes of the International Simple Meals and Beverages segment included a $67 impairment charge on certain European trademarks. See Note 5 for additional information.

[2] Represents unallocated corporate expenses and unallocated assets.

[3] See Note 7 for additional information.