Leases (Supplemental Cash Flow Information) (Details) - USD ($) $ in Millions	3 Months Ended
	Oct. 29, 2023	Oct. 30, 2022
Leases [Abstract]
Operating Lease, Payments	$ 23	$ 20
Finance Lease, Principal Payments	4	4
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	36	15
Right-of-Use Asset Obtained in Exchange for Finance Lease Liability	$ 3	$ 0