Business And Geographic Segment Inormation (Schedule of Segment Reporting - Depreciation and Amortization)(Details) - USD ($) $ in Millions		12 Months Ended
		Jul. 31, 2016	Aug. 02, 2015	Aug. 03, 2014
Segment Reporting Information [Line Items]
Depreciation and amortization		$ 308	$ 303	$ 305
Americas Simple Meals and Beverages [Member]
Segment Reporting Information [Line Items]
Depreciation and amortization		117	123	120
Global Biscuits and Snacks [Member]
Segment Reporting Information [Line Items]
Depreciation and amortization		96	94	101
Campbell Fresh [Member]
Segment Reporting Information [Line Items]
Depreciation and amortization		77	70	69
Corporate, Non-Segment [Member]
Segment Reporting Information [Line Items]
Depreciation and amortization	[1]	$ 18	$ 16	$ 15

[1] Represents primarily corporate offices.