Supplemental Financial Statement Data (Schedule of Other Assets, Noncurrent) (Details) - USD ($) $ in Millions	Jul. 31, 2022	Aug. 01, 2021
Other Assets, Noncurrent [Abstract]
Operating Lease, Right-of-Use Asset	$ 239	$ 235
Pensions	146	190
Other Assets, Miscellaneous, Noncurrent	24	24
Other assets	$ 409	$ 449
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Other assets	Other assets