Goodwill And Intangible Assets (Goodwill) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Aug. 03, 2014	Jul. 28, 2013
Goodwill [Line Items]
Beginning Balance	$ 2,297	$ 2,013
Goodwill, Acquired During Period	140	820
Goodwill, Impairment Loss		(360)
Goodwill, Written off Related to Sale of Business Unit		(110)
Foreign currency translation adjustment	(4)	(66)
Ending Balance	2,433	2,297
U.S. Simple Meals [Member]
Goodwill [Line Items]
Beginning Balance	450	322
Goodwill, Acquired During Period	0	128
Goodwill, Impairment Loss		0
Goodwill, Written off Related to Sale of Business Unit		0
Foreign currency translation adjustment	0	0
Ending Balance	450	450
Global Baking And Snacking [Member]
Goodwill [Line Items]
Beginning Balance	775	872
Goodwill, Acquired During Period	140	0
Goodwill, Impairment Loss		0
Goodwill, Written off Related to Sale of Business Unit		0
Foreign currency translation adjustment	3	(97)
Ending Balance	918	775
International Simple Meals And Beverages [Member]
Goodwill [Line Items]
Beginning Balance	122	561
Goodwill, Acquired During Period	0	0
Foreign currency translation adjustment	(7)	31
Ending Balance	115	122
U.S. Beverages [Member]
Goodwill [Line Items]
Beginning Balance	112	112
Goodwill, Acquired During Period	0	0
Goodwill, Impairment Loss		0
Goodwill, Written off Related to Sale of Business Unit		0
Foreign currency translation adjustment	0	0
Ending Balance	112	112
Bolthouse and Foodservice [Member]
Goodwill [Line Items]
Beginning Balance	838	146
Goodwill, Acquired During Period	0	692
Goodwill, Impairment Loss		0
Goodwill, Written off Related to Sale of Business Unit		0
Foreign currency translation adjustment	0	0
Ending Balance	838	838
Discontinued Operations [Member] | International Simple Meals And Beverages [Member]
Goodwill [Line Items]
Goodwill, Impairment Loss		(360)
Goodwill, Written off Related to Sale of Business Unit		$ (110)