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Balance Sheet and Other Details - Inventories (Details) - USD ($)
$ in Millions
Apr. 26, 2025
Jul. 27, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]    
Raw materials $ 1,520 $ 2,039
Work in process 173 83
Finished goods 919 1,027
Service-related spares 214 216
Demonstration systems 6 8
Total $ 2,832 $ 3,373