Segment Information (Schedule Of Segment Reporting - Net Sales) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jan. 30, 2022	Jan. 31, 2021	Jan. 30, 2022	Jan. 31, 2021
Segment Reporting Information [Line Items]
Net sales	$ 2,209	$ 2,279	$ 4,445	$ 4,619
Meals & Beverages [Member]
Segment Reporting Information [Line Items]
Net sales	1,275	1,318	2,541	2,681
Snacks [Member]
Segment Reporting Information [Line Items]
Net sales	$ 934	$ 961	$ 1,904	$ 1,938