Goodwill And Intangible Assets (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended
	Oct. 30, 2022	Oct. 31, 2021	Jul. 31, 2022
Finite-Lived Intangible Assets [Line Items]
Amortization of Intangible Assets	$ 11	$ 11
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months	41
Finite-Lived Intangible Assets, Amortization Expense, Year Two	41
Finite Lived Intangible Assets, Amortization Expense, Year Three	41
Finite Lived Intangible Assets, Amortization Expense, Year Four	41
Finite Lived Intangible Assets, Amortization Expense, Year Five	$ 41
Trade names - Carrying value with 10% or less excess fair value coverage
Finite-Lived Intangible Assets [Line Items]
Indefinite-lived Intangible Assets (Excluding Goodwill)			$ 434
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	16 years