Goodwill And Intangible Assets (Goodwill) (Details) $ in Millions	6 Months Ended
	Jan. 31, 2016 USD ($)
Goodwill [Line Items]
Beginning Balance	$ 2,344
Foreign currency translation adjustment	(26)
Ending Balance	2,318
Americas Simple Meals and Beverages [Member]
Goodwill [Line Items]
Beginning Balance	775
Foreign currency translation adjustment	(6)
Ending Balance	769
Global Biscuits and Snacks [Member]
Goodwill [Line Items]
Beginning Balance	732
Foreign currency translation adjustment	(20)
Ending Balance	712
Campbell Fresh [Member]
Goodwill [Line Items]
Beginning Balance	837
Foreign currency translation adjustment	0
Ending Balance	$ 837