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Commitments and Contingencies - Schedule of Financing Guarantees Outstanding (Details) - USD ($)
$ in Millions
Apr. 26, 2025
Jul. 27, 2024
Loss Contingencies [Line Items]    
Total $ 106 $ 114
Channel partner    
Loss Contingencies [Line Items]    
Maximum potential future payments 116 127
Deferred revenue $ (10) $ (13)