Goodwill And Intangible Assets (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jan. 31, 2021	Jan. 26, 2020	Jan. 31, 2021	Jan. 26, 2020	Aug. 02, 2020
Finite-Lived Intangible Assets [Line Items]
Indefinite-lived Intangible Assets (Excluding Goodwill)	$ 2,611		$ 2,611		$ 2,611
Amortization of Intangible Assets	11	$ 11	21	$ 22
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months	42		42
Finite-Lived Intangible Assets, Amortization Expense, Year Two	42		42
Finite Lived Intangible Assets, Amortization Expense, Year Three	42		42
Finite Lived Intangible Assets, Amortization Expense, Year Four	42		42
Finite Lived Intangible Assets, Amortization Expense, Year Five	$ 42		42
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	18 years
Snyder's-Lance [Member]
Finite-Lived Intangible Assets [Line Items]
Indefinite-lived Intangible Assets (Excluding Goodwill)	$ 1,978		1,978
Trade Name - Snyder's of Hanover [Member]
Finite-Lived Intangible Assets [Line Items]
Indefinite-lived Intangible Assets (Excluding Goodwill)	620		620
Trade Names - Pace [Member]
Finite-Lived Intangible Assets [Line Items]
Indefinite-lived Intangible Assets (Excluding Goodwill)	292		292
Trade Name - Pacific Foods [Member]
Finite-Lived Intangible Assets [Line Items]
Indefinite-lived Intangible Assets (Excluding Goodwill)	$ 280		$ 280