Leases (Supplemental Cash Flow Information) (Details) - USD ($) $ in Millions	12 Months Ended
	Jul. 28, 2024	Jul. 30, 2023
Leases [Abstract]
Operating Lease, Payments	$ 95	$ 84
Finance Lease, Interest Payment on Liability	2	0
Finance Lease, Principal Payments	20	17
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	153	117
Right-of-Use Asset Obtained in Exchange for Finance Lease Liability	55	17
Right-of-Use Asset Obtained with Business Acquisition, Operating Leases	15	0
Right-of-Use Asset Obtained with Business Acquisition, Finance Lease	$ 13	$ 0