Restructuring Charges (Schedule Of Restructuring Charges Associated With Each Reportable Segment) (Details) (USD $) In Millions	12 Months Ended																												36 Months Ended
	Jul. 31, 2011 2011 Initiatives [Member]	Jul. 31, 2011 2011 Initiatives [Member] U.S. Simple Meals [Member]	Jul. 31, 2011 2011 Initiatives [Member] U.S. Simple Meals [Member] Severance Pay And Benefits [Member]	Jul. 31, 2011 2011 Initiatives [Member] U.S. Simple Meals [Member] Asset Impairment/Accelerated Depreciation [Member]	Jul. 31, 2011 2011 Initiatives [Member] U.S. Simple Meals [Member] Other Exit Costs [Member]	Jul. 31, 2011 2011 Initiatives [Member] U.S. Beverages [Member]	Jul. 31, 2011 2011 Initiatives [Member] U.S. Beverages [Member] Severance Pay And Benefits [Member]	Jul. 31, 2011 2011 Initiatives [Member] U.S. Beverages [Member] Asset Impairment/Accelerated Depreciation [Member]	Jul. 31, 2011 2011 Initiatives [Member] U.S. Beverages [Member] Other Exit Costs [Member]	Jul. 31, 2011 2011 Initiatives [Member] Global Baking And Snacking [Member]	Jul. 31, 2011 2011 Initiatives [Member] Global Baking And Snacking [Member] Severance Pay And Benefits [Member]	Jul. 31, 2011 2011 Initiatives [Member] Global Baking And Snacking [Member] Asset Impairment/Accelerated Depreciation [Member]	Jul. 31, 2011 2011 Initiatives [Member] Global Baking And Snacking [Member] Other Exit Costs [Member]	Jul. 31, 2011 2011 Initiatives [Member] International Simple Meals And Beverages [Member]	Jul. 31, 2011 2011 Initiatives [Member] International Simple Meals And Beverages [Member] Severance Pay And Benefits [Member]	Jul. 31, 2011 2011 Initiatives [Member] International Simple Meals And Beverages [Member] Asset Impairment/Accelerated Depreciation [Member]	Jul. 31, 2011 2011 Initiatives [Member] International Simple Meals And Beverages [Member] Other Exit Costs [Member]	Jul. 31, 2011 2011 Initiatives [Member] North America Foodservice [Member]	Jul. 31, 2011 2011 Initiatives [Member] North America Foodservice [Member] Severance Pay And Benefits [Member]	Jul. 31, 2011 2011 Initiatives [Member] North America Foodservice [Member] Asset Impairment/Accelerated Depreciation [Member]	Jul. 31, 2011 2011 Initiatives [Member] North America Foodservice [Member] Other Exit Costs [Member]	Jul. 31, 2011 2011 Initiatives [Member] Corporate [Member]	Jul. 31, 2011 2011 Initiatives [Member] Corporate [Member] Severance Pay And Benefits [Member]	Jul. 31, 2011 2011 Initiatives [Member] Corporate [Member] Asset Impairment/Accelerated Depreciation [Member]	Jul. 31, 2011 2011 Initiatives [Member] Corporate [Member] Other Exit Costs [Member]	Jul. 31, 2011 2011 Initiatives [Member] Severance Pay And Benefits [Member]	Jul. 31, 2011 2011 Initiatives [Member] Asset Impairment/Accelerated Depreciation [Member]	Jul. 31, 2011 2011 Initiatives [Member] Other Exit Costs [Member]	Aug. 01, 2010 2008 Initiatives [Member]	Aug. 01, 2010 2008 Initiatives [Member] Global Baking And Snacking [Member]	Aug. 01, 2010 2008 Initiatives [Member] Global Baking And Snacking [Member] Severance Pay And Benefits [Member]	Aug. 01, 2010 2008 Initiatives [Member] Global Baking And Snacking [Member] Asset Impairment/Accelerated Depreciation [Member]	Aug. 01, 2010 2008 Initiatives [Member] Global Baking And Snacking [Member] Other Exit Costs [Member]	Aug. 01, 2010 2008 Initiatives [Member] International Simple Meals And Beverages [Member]	Aug. 01, 2010 2008 Initiatives [Member] International Simple Meals And Beverages [Member] Severance Pay And Benefits [Member]	Aug. 01, 2010 2008 Initiatives [Member] International Simple Meals And Beverages [Member] Asset Impairment/Accelerated Depreciation [Member]	Aug. 01, 2010 2008 Initiatives [Member] International Simple Meals And Beverages [Member] Other Exit Costs [Member]	Aug. 01, 2010 2008 Initiatives [Member] North America Foodservice [Member]	Aug. 01, 2010 2008 Initiatives [Member] North America Foodservice [Member] Severance Pay And Benefits [Member]	Aug. 01, 2010 2008 Initiatives [Member] North America Foodservice [Member] Asset Impairment/Accelerated Depreciation [Member]	Aug. 01, 2010 2008 Initiatives [Member] North America Foodservice [Member] Other Exit Costs [Member]	Aug. 01, 2010 2008 Initiatives [Member] Severance Pay And Benefits [Member]	Aug. 01, 2010 2008 Initiatives [Member] Asset Impairment/Accelerated Depreciation [Member]	Aug. 01, 2010 2008 Initiatives [Member] Other Exit Costs [Member]
Restructuring charges	$ 63	$ 31	$ 10	$ 20	$ 1	$ 3	$ 3			$ 12	$ 12			$ 12	$ 10	$ 2		$ 1	$ 1			$ 4	$ 1		$ 3	$ 37	$ 22	$ 4	$ 216	$ 147	$ 14	$ 131	$ 2	$ 9	$ 9			$ 60	$ 35	$ 23	$ 2	$ 58	$ 154	$ 4