Leases (Supplemental Cash Flow Information) (Details) - USD ($) $ in Millions	9 Months Ended
	Apr. 27, 2025	Apr. 28, 2024
Leases [Abstract]
Operating Lease, Payments	$ 80	$ 70
Finance Lease, Interest Payment on Liability	3	1
Finance Lease, Principal Payments	23	15
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	82	78
Right-of-Use Asset Obtained in Exchange for Finance Lease Liability	$ 33	35
Right-of-Use Asset Obtained with Business Acquisition, Operating Leases		15
Right-of-Use Asset Obtained with Business Acquisition, Finance Leases		$ 13