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Cash and Cash Equivalents, Investments, and Funds Receivable and Amounts Held for Customers - Table of cash and cash equivalents, investments, and funds receivable and amounts held for customers by balance sheet classification (Details) - USD ($)
$ in Millions
Jul. 31, 2026
Jul. 31, 2025
Jul. 31, 2024
Jul. 31, 2023
Amortized Cost        
Cash and cash equivalents $ 4,705 $ 2,884 $ 3,609  
Investments 2,495 1,667    
Funds receivable and amounts held for customers 5,039 7,076    
Total cash and cash equivalents, investments, and funds receivable and amounts held for customers 12,239 11,627    
Fair Value        
Cash and cash equivalents 4,705 2,884    
Investments 2,495 1,668    
Funds receivable and amounts held for customers 5,038 7,076 $ 3,921 $ 420
Total cash and cash equivalents, investments, and funds receivable and amounts held for customers $ 12,238 $ 11,628