Acquisition Narrative (Details) - USD ($) $ / shares in Units, $ in Millions				12 Months Ended
		Mar. 12, 2024	Aug. 07, 2023	Jul. 28, 2024	Jul. 30, 2023	Jul. 31, 2022
Business Acquisition [Line Items]
Goodwill				$ 5,077	$ 3,965	$ 3,979
Costs Associated with Acquisition	[1]			35	$ 5	$ 0
Sovos Brands Acquisition
Business Acquisition [Line Items]
Business Acquisition, Date of Acquisition Agreement			Aug. 07, 2023
Business Acquisition, Effective Date of Acquisition		Mar. 12, 2024
Business Acquisition, Share Price			$ 23.00
Goodwill		$ 1,116
Costs Associated with Acquisition				128
Revenue of Acquiree since Acquisition Date, Actual				423
Earnings / (Loss) of Acquiree since Acquisition Date, Actual				$ (84)
Business Combination, Consideration Transferred		$ 2,899
Sovos Brands Acquisition | Weighted Average
Business Acquisition [Line Items]
Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life				27 years
Sovos Brands Acquisition | Delayed Draw Term Loan Due 2024
Business Acquisition [Line Items]
Proceeds from Lines of Credit				$ 2,000
Sovos Brands Acquisition | Other Nonoperating Income (Expense)
Business Acquisition [Line Items]
Costs Associated with Acquisition				35
Sovos Brands Acquisition | Interest Expense [Member] | Delayed Draw Term Loan Due 2024
Business Acquisition [Line Items]
Costs Associated with Acquisition				2
Sovos Brands Acquisition | Cost Of Products Sold [Member]
Business Acquisition [Line Items]
Costs Associated with Acquisition				18
Sovos Brands Acquisition | Cost Of Products Sold [Member] | Fair Value Adjustment to Inventory
Business Acquisition [Line Items]
Costs Associated with Acquisition				17
Sovos Brands Acquisition | Selling and Marketing Expense [Member]
Business Acquisition [Line Items]
Costs Associated with Acquisition				3
Sovos Brands Acquisition | General and Administrative Expense [Member]
Business Acquisition [Line Items]
Costs Associated with Acquisition				47
Sovos Brands Acquisition | Research and Development Expense [Member]
Business Acquisition [Line Items]
Costs Associated with Acquisition				2
Sovos Brands Acquisition | Restructuring Charges [Member]
Business Acquisition [Line Items]
Costs Associated with Acquisition				$ 21

[1] Related to the acquisition of Sovos Brands. See Note 3 for additional information.