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Restructuring Charges and Cost Savings Initiatives (Schedule Of Restructuring Charges Associated With Each Reportable Segment) (Details) - USD ($)
$ in Millions
12 Months Ended
Jul. 31, 2022
Aug. 01, 2021
Aug. 02, 2020
Corporate      
Restructuring Cost and Reserve [Line Items]      
Restructuring and Related Cost, Incurred Cost $ 26 $ 32 $ 60
2015 and Snyder's-Lance Initiatives [Member]      
Restructuring Cost and Reserve [Line Items]      
Restructuring and Related Cost, Cost Incurred to Date 725    
Restructuring and Related Cost, Incurred Cost 31 $ 53 $ 69
2015 and Snyder's-Lance Initiatives [Member] | Meals & Beverages [Member]      
Restructuring Cost and Reserve [Line Items]      
Restructuring and Related Cost, Cost Incurred to Date 225    
Restructuring and Related Cost, Incurred Cost 2    
2015 and Snyder's-Lance Initiatives [Member] | Snacks [Member]      
Restructuring Cost and Reserve [Line Items]      
Restructuring and Related Cost, Cost Incurred to Date 321    
Restructuring and Related Cost, Incurred Cost 22    
2015 and Snyder's-Lance Initiatives [Member] | Corporate      
Restructuring Cost and Reserve [Line Items]      
Restructuring and Related Cost, Cost Incurred to Date 179    
Restructuring and Related Cost, Incurred Cost $ 7