Short-term Borrowings and Long-term Debt (Schedule of Short-term Debt) (Details) - USD ($) $ in Millions		Jul. 30, 2023	Jul. 31, 2022
Debt Disclosure [Abstract]
Commercial Paper		$ 178	$ 235
Notes Payable, Current		0	566
Finance Lease, Liability, Current		13	14
Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net	[1]	0	1
Debt, Current		$ 191	$ 814
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]		Debt, Current	Debt, Current

[1] Includes unamortized net discount/premium on debt issuances and debt issuance costs.