Restructuring Charges and Cost Savings Initiatives (Schedule Of Pre-Tax Charges) (Details) - USD ($) $ in Millions	3 Months Ended
	Oct. 27, 2024	Oct. 29, 2023	Jul. 28, 2024
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 6	$ 2
2015 and Snyder's-Lance Initiatives [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges		2
Restructuring and Related Cost, Cost Incurred to Date			$ 895
Other Restructuring Costs		13
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			253
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			134
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			508
2015 and Snyder's-Lance Initiatives [Member] | Restructuring Charges [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Cost Incurred to Date			297
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			437
Other Restructuring Costs		5
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			128
Other Restructuring Costs		3
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
Other Restructuring Costs		2
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
Other Restructuring Costs		$ 1
2025 Initiatives
Restructuring Cost and Reserve [Line Items]
Restructuring charges	6
Restructuring and Related Cost, Cost Incurred to Date	27
Other Restructuring Costs	27
2025 Initiatives | Severance Pay And Benefits [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Cost Incurred to Date	6
2025 Initiatives | Asset Impairment Accelerated Depreciation [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Cost Incurred to Date	9
Other Restructuring Costs	9
2025 Initiatives | Implementation Costs and Other Related Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Cost Incurred to Date	12
2025 Initiatives | General and Administrative Expense [Member]
Restructuring Cost and Reserve [Line Items]
Other Restructuring Costs	11
2025 Initiatives | Cost Of Products Sold [Member]
Restructuring Cost and Reserve [Line Items]
Other Restructuring Costs	8
2025 Initiatives | Selling and Marketing Expense [Member]
Restructuring Cost and Reserve [Line Items]
Other Restructuring Costs	1
2025 Initiatives | Research and Development Expense [Member]
Restructuring Cost and Reserve [Line Items]
Other Restructuring Costs	$ 1