v3.25.3
Borrowings - Schedule of Long-Term Debt (Details) - USD ($)
 3 Months Ended
Oct. 31, 2025
Oct. 31, 2024
Debt Instrument [Line Items]    
Total $ 9,723,000,000  
Fair value adjustment related to hedged debt (1,000,000) $ (21,000,000)
Unamortized debt issuance cost (46,000,000) (47,000,000)
Current portion of long-term debt (788,000,000) (1,358,000,000)
Total long-term debt 8,821,000,000 8,263,000,000
U.S. Dollar Global Notes    
Debt Instrument [Line Items]    
Total 8,891,000,000 9,044,000,000
$1,150 issued June 2020    
Debt Instrument [Line Items]    
Face amount of debt instrument $ 1,150,000,000  
Discount to par (percent) 99.769%  
Interest rate (percent) 2.20%  
Total $ 0 1,150,000,000
$1,000 issued June 2021    
Debt Instrument [Line Items]    
Face amount of debt instrument $ 1,000,000,000  
Discount to par (percent) 99.808%  
Interest rate (percent) 1.45%  
Total $ 522,000,000 521,000,000
$1,000 issued June 2020    
Debt Instrument [Line Items]    
Face amount of debt instrument $ 1,000,000,000  
Discount to par (percent) 99.718%  
Interest rate (percent) 3.00%  
Total $ 999,000,000 999,000,000
$900 issued June 2022    
Debt Instrument [Line Items]    
Face amount of debt instrument $ 900,000,000  
Discount to par (percent) 99.841%  
Interest rate (percent) 4.75%  
Total $ 899,000,000 899,000,000
$1,000 issued March 2022    
Debt Instrument [Line Items]    
Face amount of debt instrument $ 1,000,000,000  
Discount to par (percent) 99.767%  
Interest rate (percent) 4.00%  
Total $ 999,000,000 999,000,000
$500 issued April 2025    
Debt Instrument [Line Items]    
Face amount of debt instrument $ 500,000,000  
Discount to par (percent) 99.732%  
Interest rate (percent) 5.40%  
Total $ 499,000,000 0
$850 issued June 2020    
Debt Instrument [Line Items]    
Face amount of debt instrument $ 850,000,000  
Discount to par (percent) 99.79%  
Interest rate (percent) 3.40%  
Total $ 503,000,000 503,000,000
$1,000 issued June 2021    
Debt Instrument [Line Items]    
Face amount of debt instrument $ 1,000,000,000  
Discount to par (percent) 99.573%  
Interest rate (percent) 2.65%  
Total $ 998,000,000 997,000,000
$1,000 issued March 2022    
Debt Instrument [Line Items]    
Face amount of debt instrument $ 1,000,000,000  
Discount to par (percent) 99.966%  
Interest rate (percent) 4.20%  
Total $ 676,000,000 676,000,000
$1,100 issued June 2022    
Debt Instrument [Line Items]    
Face amount of debt instrument $ 1,100,000,000  
Discount to par (percent) 99.725%  
Interest rate (percent) 5.50%  
Total $ 1,098,000,000 1,098,000,000
$500 issued April 2025    
Debt Instrument [Line Items]    
Face amount of debt instrument $ 500,000,000  
Discount to par (percent) 99.778%  
Interest rate (percent) 6.10%  
Total $ 499,000,000 0
$1,200 issued September 2011    
Debt Instrument [Line Items]    
Face amount of debt instrument $ 1,200,000,000  
Discount to par (percent) 99.863%  
Interest rate (percent) 6.00%  
Total $ 1,199,000,000 1,199,000,000
$500 issued August 2022    
Debt Instrument [Line Items]    
Face amount of debt instrument $ 500,000,000  
Issuance rate (percent) 100.00%  
Interest rate (percent) 4.75%  
Total $ 0 3,000,000
Repayments of long-term debt 3,400,000  
Other borrowings at 1.47%-7.07%, due in fiscal years 2026-2032    
Debt Instrument [Line Items]    
Other borrowings at 1.47%-7.07%, due in fiscal years 2026-2032 $ 765,000,000 $ 645,000,000
Other borrowings at 1.47%-7.07%, due in fiscal years 2026-2032 | Minimum    
Debt Instrument [Line Items]    
Interest rate (percent) 1.47%  
Other borrowings at 1.47%-7.07%, due in fiscal years 2026-2032 | Maximum    
Debt Instrument [Line Items]    
Interest rate (percent) 7.07%