Restructuring Charges and Cost Savings Initiatives (Schedule Of Pre-Tax Charges) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Apr. 30, 2023	May 01, 2022	Apr. 30, 2023	May 01, 2022
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 6	$ 0	$ 15	$ 0
2015 and Snyder's-Lance Initiatives [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	6	0	15	0
Restructuring and Related Cost, Incurred Cost	33	6	50	15
Restructuring and Related Cost, Cost Incurred to Date	775		775
2015 and Snyder's-Lance Initiatives [Member] \| Severance Pay And Benefits [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost			12
Restructuring and Related Cost, Cost Incurred to Date	239		239
2015 and Snyder's-Lance Initiatives [Member] \| Asset Impairment Accelerated Depreciation [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost			17
Restructuring and Related Cost, Cost Incurred to Date	99		99
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	437		437
2015 and Snyder's-Lance Initiatives [Member] \| Restructuring Charges [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Cost Incurred to Date	279		279
2015 and Snyder's-Lance Initiatives [Member] \| General and Administrative Expense [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	13	5	21	10
Restructuring and Related Cost, Cost Incurred to Date	380		380
2015 and Snyder's-Lance Initiatives [Member] \| Cost Of Products Sold [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	12	1	12	5
Restructuring and Related Cost, Cost Incurred to Date	96		96
2015 and Snyder's-Lance Initiatives [Member] \| Selling and Marketing Expense [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	0	0	0	0
Restructuring and Related Cost, Cost Incurred to Date	14		14
2015 and Snyder's-Lance Initiatives [Member] \| Research and Development Expense [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	2	$ 0	2	$ 0
Restructuring and Related Cost, Cost Incurred to Date	$ 6		$ 6