Goodwill And Intangible Assets (Goodwill) (Details) - USD ($) $ in Millions	3 Months Ended
	Oct. 30, 2016	Jul. 31, 2016
Goodwill [Line Items]
Goodwill, Gross		$ 2,369
Accumulated Impairment Loss		(106)
Net Balance	$ 2,259	2,263
Foreign currency translation adjustment	(4)
Net Ending Balance	2,259
Americas Simple Meals and Beverages [Member]
Goodwill [Line Items]
Goodwill, Gross		775
Accumulated Impairment Loss		0
Net Balance	773	775
Foreign currency translation adjustment	(2)
Net Ending Balance	773
Global Biscuits and Snacks [Member]
Goodwill [Line Items]
Goodwill, Gross		757
Accumulated Impairment Loss		0
Net Balance	755	757
Foreign currency translation adjustment	(2)
Net Ending Balance	755
Campbell Fresh [Member]
Goodwill [Line Items]
Goodwill, Gross		837
Accumulated Impairment Loss		(106)
Net Balance	731	$ 731
Foreign currency translation adjustment	0
Net Ending Balance	$ 731