Goodwill And Intangible Assets (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	May 01, 2022	May 02, 2021	May 01, 2022	May 02, 2021
Finite-Lived Intangible Assets [Line Items]
Amortization of Intangible Assets	$ 10	$ 10	$ 31	$ 31
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months	41		41
Finite-Lived Intangible Assets, Amortization Expense, Year Two	41		41
Finite Lived Intangible Assets, Amortization Expense, Year Three	41		41
Finite Lived Intangible Assets, Amortization Expense, Year Four	41		41
Finite Lived Intangible Assets, Amortization Expense, Year Five	$ 41		$ 41
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	17 years