Segment Information (Schedule Of Segment Reporting - Earnings Before Interest And Taxes) (Details) - USD ($) $ in Millions		3 Months Ended
		Oct. 31, 2021	Nov. 01, 2020
Segment Reporting Information [Line Items]
Earnings before interest and taxes		$ 376	$ 461
Defined Benefit Plan, Actuarial Gain (Loss)		(6)	4
Meals & Beverages [Member]
Segment Reporting Information [Line Items]
Earnings before interest and taxes		280	337
Snacks [Member]
Segment Reporting Information [Line Items]
Earnings before interest and taxes		128	135
Corporate
Segment Reporting Information [Line Items]
Earnings before interest and taxes	[1]	(32)	(10)
Defined Benefit Plan, Actuarial Gain (Loss)		(6)	4
Restructuring and Related Cost, Incurred Cost		(4)	(5)
Unrealized Gain (Loss) on Commodity Contracts		(3)	6
Corporate | Restructuring Charges [Member]
Segment Reporting Information [Line Items]
Earnings before interest and taxes	[2]	$ 0	$ (1)

[1] Represents unallocated items. In the three-month periods ended October 31, 2021, and November 1, 2020, there were pension actuarial losses of $6 and pension actuarial gains of $4, respectively. Costs related to the cost savings initiatives were $4 and $5 in the three-month periods ended October 31, 2021, and November 1, 2020, respectively. Unrealized mark-to-market adjustments on outstanding undesignated commodity hedges were losses of $3 and gains of $6 in the three-month periods ended October 31, 2021, and November 1, 2020, respectively.

[2] See Note 6 for additional information.