v3.26.1
Cash and Cash Equivalents, Investments, and Funds Receivable and Amounts Held for Customers - Schedule of Investment Category Type of Issue (Details) - USD ($)
$ in Millions
Apr. 30, 2026
Jul. 31, 2025
Apr. 30, 2025
Jul. 31, 2024
Cash and Cash Equivalents Items [Line Items]        
Funds receivable and funds held for customers not measured or recorded at fair value $ 377 $ 329    
Total cash, cash equivalents, restricted cash, and restricted cash equivalents, amortized cost 11,914 9,481 $ 10,184 $ 7,099
Available-for-sale debt securities:        
Available-for-sale debt securities, amortized cost 2,249 1,817    
Available-for-sale debt securities, fair value 2,249 1,818    
Total cash, cash equivalents, restricted cash, restricted cash equivalents, and investments, amortized cost 14,163 11,298    
Total cash, cash equivalents, restricted cash, restricted cash equivalents, and investments, fair value 14,163 11,299    
Total cash, cash equivalents, restricted cash, and restricted cash equivalents        
Cash and Cash Equivalents Items [Line Items]        
Total cash, cash equivalents, restricted cash, and restricted cash equivalents, amortized cost 11,914 9,481    
Total cash, cash equivalents, restricted cash, and restricted cash equivalents, fair value 11,914 9,481    
Corporate notes        
Available-for-sale debt securities:        
Available-for-sale debt securities, amortized cost 607 502    
Available-for-sale debt securities, fair value 607 502    
U.S. agency securities        
Available-for-sale debt securities:        
Available-for-sale debt securities, amortized cost 1,642 1,315    
Available-for-sale debt securities, fair value $ 1,642 $ 1,316