Restructuring Charges and Cost Savings Initiatives (Schedule Of Restructuring Activity And Related Reserves) (Details) - 2015 and Snyder's-Lance Initiatives [Member] - USD ($) $ in Millions		3 Months Ended
		Oct. 27, 2019	Oct. 28, 2018
Restructuring Reserve [Roll Forward]
Restructuring and Related Cost, Incurred Cost		$ 11	$ 45
Severance Pay And Benefits [Member]
Restructuring Reserve [Roll Forward]
Accrued Balance at beginning of period	[1]	37
Restructuring and Related Cost, Incurred Cost		3
Cash Payments		(9)
Accrued Balance at end of period	[2]	31
Restructuring Reserve, Noncurrent		6	$ 8
Other Cost Savings Implementation Costs [Member]
Restructuring Reserve [Roll Forward]
Restructuring and Related Cost, Incurred Cost	[3]	$ 8

[1] Includes $8 of severance pay and benefits recorded in Other liabilities in the Consolidated Balance Sheet.

[2] Includes $6 of severance pay and benefits recorded in Other liabilities in the Consolidated Balance Sheet

[3] Includes other costs recognized as incurred that are not reflected in the restructuring reserve in the Consolidated Balance Sheet. The costs are included in Administrative expenses in the Consolidated Statements of Earnings.