Goodwill And Intangible Assets (Goodwill) (Details) $ in Millions	12 Months Ended
	Jul. 31, 2016 USD ($)		Aug. 02, 2015 USD ($)
Goodwill [Line Items]
Beginning Balance	$ 2,344		$ 2,433
Goodwill, Acquired During Period			116
Goodwill, Impairment Loss	(106)
Foreign currency translation adjustment	25		(205)
Ending Balance	2,263	[1]	2,344
Goodwill, Impaired, Accumulated Impairment Loss	(106)
Americas Simple Meals and Beverages [Member]
Goodwill [Line Items]
Beginning Balance	775		794
Goodwill, Acquired During Period			0
Goodwill, Impairment Loss	0
Foreign currency translation adjustment	0		(19)
Ending Balance	775		775
Global Biscuits and Snacks [Member]
Goodwill [Line Items]
Beginning Balance	732		918
Goodwill, Acquired During Period			0
Goodwill, Impairment Loss	0
Foreign currency translation adjustment	25		(186)
Ending Balance	757		732
Campbell Fresh [Member]
Goodwill [Line Items]
Beginning Balance	837		721
Goodwill, Acquired During Period			116
Goodwill, Impairment Loss	(106)
Foreign currency translation adjustment	0		0
Ending Balance	731	[1]	$ 837
Goodwill, Impaired, Accumulated Impairment Loss	$ (106)

[1] The total carrying value of goodwill as of July 31, 2016 is reflected net of $106 of accumulated impairment charges recorded in 2016.