v3.26.1
Debt (2030 Convertible Senior Notes and Capped Calls) (Narrative) (Details)
1 Months Ended 12 Months Ended
May 07, 2026
USD ($)
Feb. 11, 2026
USD ($)
day
$ / shares
shares
Apr. 30, 2026
USD ($)
Jul. 31, 2026
USD ($)
Jul. 31, 2025
USD ($)
Jul. 31, 2024
USD ($)
Debt Instrument, Redemption            
Long-term convertible senior notes       $ 1,774,000,000 $ 0  
Change in fair value of convertible senior notes       620,000,000 0 $ 0
Proceeds from borrowings on convertible senior notes, net       10,000,000 0 0
Derivative asset       $ 153,000,000 0  
Derivative Asset Statement Of Financial Position Extensible Enumeration Not Disclosed Flag       true    
Change in fair value of Capped Calls       $ 58,000,000 $ 0 $ 0
Convertible Debt            
Debt Instrument, Redemption            
Proceeds from borrowings on convertible senior notes, net     $ 10,000,000      
2030 Notes | Convertible Debt            
Debt Instrument, Redemption            
Aggregate principal amount   $ 1,250,000,000   1,100,000,000    
Conversion of stock, shares issued (in shares) | shares   4.3161        
Initial conversion price (in usd per share) | $ / shares   $ 280.75        
Shares of common stock issued in connection with conversion of convertible senior notes (in shares) | shares   5,400,000        
Debt conversion, converted amount $ 160,000,000 $ 110,000,000        
Debt instrument, convertible, threshold (in days) | day   20        
Debt instrument, convertible, threshold consecutive (in days) | day   30        
Redemption price, (in percentage)   100.00%        
Redemption price, percentage of principal amount redeemed (in percentage)   100.00%        
Debt surrendered $ 153,000,000          
Long-term convertible senior notes       1,800,000,000    
Change in fair value of convertible senior notes       (620,000,000)    
Changes in fair value attributable to instrument specific credit risk       (11,000,000)    
Derivative asset       153,000,000    
Change in fair value of Capped Calls       $ 58,000,000    
2030 Notes | Convertible Debt | Minimum            
Debt Instrument, Redemption            
Initial conversion price (in usd per share) | $ / shares   $ 211.24        
Debt Instrument, convertible, stock price trigger (in usd per share) | $ / shares   287.21        
2030 Notes | Convertible Debt | Maximum            
Debt Instrument, Redemption            
Debt Instrument, convertible, stock price trigger (in usd per share) | $ / shares   291.44        
2030 Notes | Convertible Debt | Debt Instrument, Redemption, Period Two            
Debt Instrument, Redemption            
Initial conversion price (in usd per share) | $ / shares   $ 88.2630        
Debt instrument, convertible, threshold (in days) | day   5        
Debt instrument, convertible, threshold consecutive (in days) | day   10        
Debt instrument, convertible, threshold (in percentage)   98.00%        
2030 Notes | Convertible Debt | Debt Instrument, Redemption, Period One            
Debt Instrument, Redemption            
Initial conversion price (in usd per share) | $ / shares   $ 280.75        
Debt instrument, convertible, threshold (in days) | day   20        
Debt instrument, convertible, threshold consecutive (in days) | day   30        
2030 Notes | Convertible Debt | Debt Instrument, Redemption, Period Three            
Debt Instrument, Redemption            
Conversion of stock, shares issued (in shares) | shares   5.5690        
Conversion of stock amount converted   $ 113.8860