Goodwill And Intangible Assets (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended
	Oct. 27, 2019	Oct. 28, 2018	Jul. 28, 2019
Finite-Lived Intangible Assets [Line Items]
Indefinite-lived Intangible Assets (Excluding Goodwill)	$ 2,611		$ 2,629
Amortization of Intangible Assets	11	$ 11
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months	45
Finite-Lived Intangible Assets, Amortization Expense, Year Two	44
Finite Lived Intangible Assets, Amortization Expense, Year Three	44
Finite Lived Intangible Assets, Amortization Expense, Year Four	44
Finite Lived Intangible Assets, Amortization Expense, Year Five	44
Discontinued Operations, Held-for-sale or Disposed of by Sale [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization of Intangible Assets		$ 4
Snyder's-Lance [Member]
Finite-Lived Intangible Assets [Line Items]
Indefinite-lived Intangible Assets (Excluding Goodwill)	1,978
Trade Name - Pacific Foods [Member]
Finite-Lived Intangible Assets [Line Items]
Indefinite-lived Intangible Assets (Excluding Goodwill)	280
Trade Names - Pace [Member]
Finite-Lived Intangible Assets [Line Items]
Indefinite-lived Intangible Assets (Excluding Goodwill)	$ 292