Business And Geographic Segment Information (Schedule Of Segment Reporting - Capital Expenditures) (Details) (USD $) In Millions	12 Months Ended
	Jul. 31, 2011		Aug. 01, 2010		Aug. 02, 2009
Capital Expenditures	$ 272		$ 315		$ 345
U.S. Simple Meals And U.S. Beverages [Member]
Capital Expenditures	126		139		177
Global Baking And Snacking [Member]
Capital Expenditures	73		81		58
International Simple Meals And Beverages [Member]
Capital Expenditures	36		26		34
North America Foodservice [Member]
Capital Expenditures	3		3		17
Corporate [Member]
Capital Expenditures	$ 34	[1]	$ 66	[1]	$ 59	[1]

[1] Represents unallocated corporate expenses and unallocated assets.