Supplemental Financial Statement Data (Schedule of Statement of Earnings) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	May 01, 2022	May 02, 2021	May 01, 2022	May 02, 2021
Disclosure Text Block Supplement [Abstract]
Amortization of Intangible Assets	$ 10	$ 10	$ 31	$ 31
Net periodic benefits expense (income), other than the service cost	1	(26)	(43)	(101)
Transition services fees	0	(8)	0	(20)
Other	(1)	1	2	4
Other expenses / (income)	$ 10	$ (23)	$ (10)	$ (86)