Leases (Reported in Balance Sheet) (Details) - USD ($) $ in Millions	Oct. 30, 2022	Jul. 31, 2022
Operating Lease, Right-of-Use Asset	$ 235	$ 239
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Other Assets, Noncurrent	Other Assets, Noncurrent
Operating Lease, Liability, Current	$ 59	$ 62
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Accrued liabilities	Accrued liabilities
Operating Lease, Liability, Noncurrent	$ 176	$ 177
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other liabilities	Other liabilities
Finance Lease, Right-of-Use Asset	$ 24	$ 28
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Plant assets, net of depreciation	Plant assets, net of depreciation
Finance Lease, Liability, Current	$ 13	$ 14
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Short-term borrowings	Short-term borrowings
Finance Lease, Liability, Noncurrent	$ 13	$ 16
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Long-Term Debt and Lease Obligation	Long-Term Debt and Lease Obligation