Restructuring Charges and Cost Savings Initiatives (Narrative) (Details) - USD ($) $ in Millions		3 Months Ended	12 Months Ended
		Jan. 31, 2021	Jul. 30, 2023	Jul. 31, 2022	Aug. 01, 2021	Aug. 02, 2020
Restructuring Cost and Reserve [Line Items]
Purchases of plant assets				$ 242	$ 275	$ 299
Deferred Income Tax Expense (Benefit)				21	137	(7)
Meals & Beverages [Member]
Restructuring Cost and Reserve [Line Items]
Purchases of plant assets				76	61	52
Snacks [Member]
Restructuring Cost and Reserve [Line Items]
Purchases of plant assets				120	153	153
Corporate
Restructuring Cost and Reserve [Line Items]
Purchases of plant assets	[1]			46	61	$ 64
2015 and Snyder's-Lance Initiatives [Member]
Restructuring Cost and Reserve [Line Items]
Purchases of plant assets				$ 440
2015 and Snyder's-Lance Initiatives [Member] | Forecast [Member]
Restructuring Cost and Reserve [Line Items]
Purchases of plant assets			$ 445
2015 and Snyder's-Lance Initiatives [Member] | Meals & Beverages [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost Allocation				31.00%
2015 and Snyder's-Lance Initiatives [Member] | Snacks [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost Allocation				44.00%
2015 and Snyder's-Lance Initiatives [Member] | Corporate
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost Allocation				25.00%
Snyder's-Lance Cost Transformation Program and Integration
Restructuring Cost and Reserve [Line Items]
Deferred Income Tax Expense (Benefit)		$ 19
Severance Pay And Benefits [Member] | 2015 and Snyder's-Lance Initiatives [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost				$ 230
Payments for Restructuring				5	$ 14
Asset Impairment Accelerated Depreciation [Member] | 2015 and Snyder's-Lance Initiatives [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost				85
Minimum [Member] | 2015 and Snyder's-Lance Initiatives [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost				735
Minimum [Member] | 2015 and Snyder's-Lance Initiatives [Member] | Forecast [Member]
Restructuring Cost and Reserve [Line Items]
Payments for Restructuring			635
Minimum [Member] | Implementation Costs and Other Related Costs [Member] | 2015 and Snyder's-Lance Initiatives [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost				420
Maximum [Member] | 2015 and Snyder's-Lance Initiatives [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost				740
Maximum [Member] | 2015 and Snyder's-Lance Initiatives [Member] | Forecast [Member]
Restructuring Cost and Reserve [Line Items]
Payments for Restructuring			$ 640
Maximum [Member] | Implementation Costs and Other Related Costs [Member] | 2015 and Snyder's-Lance Initiatives [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost				$ 425

[1] Represents primarily corporate offices and enterprise-wide information technology systems.