v3.26.1
STOCK-BASED COMPENSATION - Additional Information (Details)
$ / shares in Units, $ in Millions
1 Months Ended 12 Months Ended
Sep. 30, 2025
$ / shares
shares
May 31, 2026
USD ($)
equity-basedCompensation
$ / shares
shares
May 31, 2025
USD ($)
$ / shares
shares
May 31, 2024
USD ($)
$ / shares
shares
Share Based Compensation Arrangement Stock Options [Abstract]        
Number of equity-based compensation types | equity-basedCompensation   4    
Maximum term of stock options   10 years    
Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Abstract        
Total unrecognized compensation cost, net of estimated forfeitures | $   $ 246    
Stock option remaining weighted-average vesting period   2 years    
Ratio Of Outstanding And Available To Grant Shares To Total Outstanding Common And Equity Compensation Shares And Equity Compensation Shares Available For Grant [Abstract]        
Ratio of outstanding and available to grant shares   8.00%    
Restricted Stock        
Share Based Compensation Arrangement Stock Options [Abstract]        
Stock option vesting period   4 years    
Restricted stock granted (in shares) | shares   260,093 150,967 169,371
Restricted stock, weighted-average fair value (in dollar per share) | $ / shares   $ 236.63 $ 276.44 $ 239.33
Restricted stock fair value | $   $ 35 $ 40 $ 36
Restricted Stock Units (RSUs)        
Share Based Compensation Arrangement Stock Options [Abstract]        
Stock option vesting period   1 year    
Performance Shares        
Share Based Compensation Arrangement Stock Options [Abstract]        
Restricted stock granted (in shares) | shares 92,249      
Restricted stock, weighted-average fair value (in dollar per share) | $ / shares $ 236.89      
Minimum | Employee Stock Option        
Share Based Compensation Arrangement Stock Options [Abstract]        
Stock option vesting period   1 year    
Minimum | Performance Shares        
Share Based Compensation Arrangement Stock Options [Abstract]        
Stock options, available for future grants percent   0    
Maximum | Employee Stock Option        
Share Based Compensation Arrangement Stock Options [Abstract]        
Stock option vesting period   4 years    
Maximum | Performance Shares        
Share Based Compensation Arrangement Stock Options [Abstract]        
Stock options, available for future grants percent   1.50