Restructuring Charges and Cost Savings Initiatives (Schedule Of Pre-Tax Charges) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Apr. 28, 2024	Apr. 30, 2023	Apr. 28, 2024	Apr. 30, 2023
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 13	$ 6	$ 17	$ 15
2015 and Snyder's-Lance Initiatives [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	(3)	6	1	15
Restructuring and Related Cost, Cost Incurred to Date	855		855
Other Restructuring Costs	15	33	64	50
2015 and Snyder's-Lance Initiatives [Member] | Severance Pay And Benefits [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Cost Incurred to Date	241		241
2015 and Snyder's-Lance Initiatives [Member] | Asset Impairment Accelerated Depreciation [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Cost Incurred to Date	124		124
Other Restructuring Costs			18
2015 and Snyder's-Lance Initiatives [Member] | Implementation Costs and Other Related Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Cost Incurred to Date	490		490
2015 and Snyder's-Lance Initiatives [Member] | Restructuring Charges [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Cost Incurred to Date	281		281
2015 and Snyder's-Lance Initiatives [Member] | General and Administrative Expense [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Cost Incurred to Date	430		430
Other Restructuring Costs	13	13	47	21
2015 and Snyder's-Lance Initiatives [Member] | Cost Of Products Sold [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Cost Incurred to Date	111		111
Other Restructuring Costs	3	12	9	12
2015 and Snyder's-Lance Initiatives [Member] | Selling and Marketing Expense [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Cost Incurred to Date	23		23
Other Restructuring Costs	1	0	4	0
2015 and Snyder's-Lance Initiatives [Member] | Research and Development Expense [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Cost Incurred to Date	10		10
Other Restructuring Costs	1	$ 2	$ 3	$ 2
Sovos Initiatives
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 16