Goodwill And Intangible Assets (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended
	Oct. 28, 2018	Oct. 29, 2017
Finite-Lived Intangible Assets [Line Items]
Amortization of Intangible Assets	$ 15	$ 4
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months	62
Finite-Lived Intangible Assets, Amortization Expense, Year Two	58
Finite Lived Intangible Assets, Amortization Expense, Year Three	57
Finite Lived Intangible Assets, Amortization Expense, Year Four	56
Finite Lived Intangible Assets, Amortization Expense, Year Five	$ 56
Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	2 years
Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	22 years
Snyder's-Lance [Member] | Goodwill [Member]
Finite-Lived Intangible Assets [Line Items]
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Intangibles	$ 140
Snyder's-Lance [Member] | Goodwill [Member] | Global Biscuits and Snacks [Member]
Finite-Lived Intangible Assets [Line Items]
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Intangibles	$ 140