Restructuring Charges and Cost Savings Initiatives (Narrative) (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
Corporate and Other [Member]
Restructuring Cost and Reserve [Line Items]
Other Restructuring Costs	23	27	68	35
2015 and Snyder's-Lance Initiatives [Member]
Restructuring Cost and Reserve [Line Items]
Payments to Acquire Property, Plant and Equipment - Expected Payments	705		705
Payments to Acquire Property, Plant, and Equipment - Incurred to Date	508		508
Restructuring charges	(3)	6	1	15
Other Restructuring Costs	$ 15	$ 33	$ 64	$ 50
2015 and Snyder's-Lance Initiatives [Member] | Meals & Beverages [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost Allocation	33.00%		33.00%
Other Restructuring Costs	$ 7		$ 16
2015 and Snyder's-Lance Initiatives [Member] | Snacks [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost Allocation	43.00%		43.00%
Other Restructuring Costs	$ 0		$ 30
2015 and Snyder's-Lance Initiatives [Member] | Corporate and Other [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost Allocation	24.00%		24.00%
Other Restructuring Costs	$ 8		$ 18
2015 and Snyder's-Lance Initiatives [Member] | Asset Impairment Accelerated Depreciation [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	140		140
Other Restructuring Costs			18
2015 and Snyder's-Lance Initiatives [Member] | Minimum [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	905		905
2015 and Snyder's-Lance Initiatives [Member] | Minimum [Member] | Severance Pay And Benefits [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	250		250
2015 and Snyder's-Lance Initiatives [Member] | Minimum [Member] | Implementation Costs and Other Related Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	515		515
2015 and Snyder's-Lance Initiatives [Member] | Minimum [Member] | Cash Expenditures [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	725		725
2015 and Snyder's-Lance Initiatives [Member] | Maximum [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	930		930
2015 and Snyder's-Lance Initiatives [Member] | Maximum [Member] | Severance Pay And Benefits [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	255		255
2015 and Snyder's-Lance Initiatives [Member] | Maximum [Member] | Implementation Costs and Other Related Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	535		535
2015 and Snyder's-Lance Initiatives [Member] | Maximum [Member] | Cash Expenditures [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	750		750
Other Cost Savings Implementation Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	115		115
Other Cost Savings Implementation Costs [Member] | Marketing and Selling Expenses [Member]
Restructuring Cost and Reserve [Line Items]
Other Restructuring Costs	5		$ 5
Sovos Initiatives
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 16