Business And Geographic Segment Information (Schedule Of Segment Reporting - Net Sales) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jan. 31, 2016	Feb. 01, 2015	Jan. 31, 2016	Feb. 01, 2015
Segment Reporting Information [Line Items]
Net sales	$ 2,201	$ 2,234	$ 4,404	$ 4,489
Americas Simple Meals and Beverages [Member]
Segment Reporting Information [Line Items]
Net sales	1,237	1,278	2,539	2,611
Global Biscuits and Snacks [Member]
Segment Reporting Information [Line Items]
Net sales	682	700	1,334	1,391
Campbell Fresh [Member]
Segment Reporting Information [Line Items]
Net sales	$ 282	$ 256	$ 531	$ 487