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Leases - Supplemental Cash Flows (Details) - USD ($)
$ in Millions
9 Months Ended
Apr. 30, 2025
Apr. 30, 2024
Leases [Abstract]    
Cash paid for amounts included in the measurement of operating lease liabilities $ 78 $ 58
Right-of-use assets obtained in exchange for operating lease liabilities $ 210 $ 28