Restructuring Charges and Cost Savings Initiatives (Schedule Of Restructuring Charges Associated With Each Reportable Segment) (Details) - USD ($) $ in Millions	3 Months Ended
	Nov. 01, 2020	Oct. 27, 2019
Corporate, Non-Segment [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	$ 5	$ 8
2015 and Snyder's-Lance Initiatives [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Cost Incurred to Date	647
Restructuring and Related Cost, Incurred Cost	6	$ 11
2015 and Snyder's-Lance Initiatives [Member] | Meals & Beverages [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Cost Incurred to Date	220
Restructuring and Related Cost, Incurred Cost	0
2015 and Snyder's-Lance Initiatives [Member] | Snacks [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Cost Incurred to Date	256
Restructuring and Related Cost, Incurred Cost	5
2015 and Snyder's-Lance Initiatives [Member] | Corporate, Non-Segment [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Cost Incurred to Date	171
Restructuring and Related Cost, Incurred Cost	$ 1