Leases - Operating Lease Balances (Details) - USD ($) $ in Millions	Jul. 27, 2024	Jul. 29, 2023
Leases [Abstract]
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Other assets	Other assets
Operating lease right-of-use assets	$ 1,066	$ 971
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Other current liabilities	Other current liabilities
Operating lease liabilities	$ 364	$ 313
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other long-term liabilities	Other long-term liabilities
Operating lease liabilities	$ 906	$ 707
Total operating lease liabilities	$ 1,270	$ 1,020