Restructuring Charges and Cost Savings Initiatives (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended	15 Months Ended	114 Months Ended
	Apr. 27, 2025	Apr. 28, 2024	Apr. 27, 2025	Apr. 28, 2024	Jul. 28, 2024	Apr. 27, 2025	Jul. 28, 2024
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 6	$ 13	$ 17	$ 17
Corporate Segment and Other Operating Segment [Member]
Restructuring Cost and Reserve [Line Items]
Other Restructuring Costs	25	23	74	68
2015 and Snyder's-Lance Initiatives [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges		(3)		1			$ 297
Other Restructuring Costs		15		64			895
Restructuring and Related Cost, Cost Incurred to Date					$ 895		895
2015 and Snyder's-Lance Initiatives [Member] | General and Administrative Expense [Member]
Restructuring Cost and Reserve [Line Items]
Other Restructuring Costs		13		47			437
2015 and Snyder's-Lance Initiatives [Member] | Meals & Beverages [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Cost Incurred to Date					288		288
2015 and Snyder's-Lance Initiatives [Member] | Snacks [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Cost Incurred to Date					383		383
2015 and Snyder's-Lance Initiatives [Member] | Corporate Segment and Other Operating Segment [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Cost Incurred to Date					224		224
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		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		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		508
2015 and Snyder's-Lance Initiatives [Member] | Cash Expenditures [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Cost Incurred to Date					720		$ 720
Other Cost Savings Implementation Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	115		115			$ 115
Other Cost Savings Implementation Costs [Member] | Marketing and Selling Expenses
Restructuring Cost and Reserve [Line Items]
Other Restructuring Costs	9	5	17	5		22
Other Cost Savings Implementation Costs [Member] | General and Administrative Expense [Member]
Restructuring Cost and Reserve [Line Items]
Other Restructuring Costs	1		1			1
Sovos Initiatives [Member] | Meals & Beverages [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges		$ 16		$ 16	$ 21
2025 Initiatives
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	210		210			210
Payments to Acquire Property, Plant and Equipment - Expected Payments	215		215			215
Payments to Acquire Property, Plant, and Equipment - Incurred to Date	88		88			88
Restructuring charges	6		17
Other Restructuring Costs	21		73
Restructuring and Related Cost, Cost Incurred to Date	73		73			$ 73
2025 Initiatives | General and Administrative Expense [Member]
Restructuring Cost and Reserve [Line Items]
Other Restructuring Costs	$ 7		$ 26
2025 Initiatives | Meals & Beverages [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost Allocation	70.00%		70.00%			70.00%
Other Restructuring Costs	$ 14		$ 51
Restructuring and Related Cost, Cost Incurred to Date	$ 51		$ 51			$ 51
2025 Initiatives | Snacks [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost Allocation	9.00%		9.00%			9.00%
Other Restructuring Costs	$ 5		$ 10
Restructuring and Related Cost, Cost Incurred to Date	$ 10		$ 10			$ 10
2025 Initiatives | Corporate Segment and Other Operating Segment [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost Allocation	21.00%		21.00%			21.00%
Other Restructuring Costs	$ 2		$ 12
Restructuring and Related Cost, Cost Incurred to Date	12		12			$ 12
2025 Initiatives | Severance Pay And Benefits [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	25		25			25
Restructuring and Related Cost, Cost Incurred to Date	17		17			17
2025 Initiatives | Asset Impairment Accelerated Depreciation [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	55		55			55
Other Restructuring Costs			23
Restructuring and Related Cost, Cost Incurred to Date	23		23			23
2025 Initiatives | Implementation Costs and Other Related Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	130		130			130
Restructuring and Related Cost, Cost Incurred to Date	33		33			33
2025 Initiatives | Cash Expenditures [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	$ 150		$ 150			$ 150