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Debt - Schedule of Maturities of Long-Term Debt (Details) - USD ($)
$ in Millions
Oct. 31, 2025
Jul. 31, 2025
Debt Disclosure [Abstract]    
2026 (excluding the three months ended October 31, 2025) $ 0  
2027 1,250  
2028 400  
2029 1,530  
2030 500  
Thereafter 2,500  
Total future principal payments for debt $ 6,180 $ 6,014