Annual report [Section 13 and 15(d), not S-K Item 405]

Stock-Based Compensation Plans ( Time-Based RSUs and RSAs Activity) (Details)

v3.25.2
Stock-Based Compensation Plans ( Time-Based RSUs and RSAs Activity) (Details) - $ / shares
shares in Millions
12 Months Ended
May 31, 2025
May 31, 2024
May 31, 2023
Time-Based RSUs [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Nonvested, Beginning balance 1.3    
Granted [1] 0.8    
Vested (0.4)    
Forfeited (0.2)    
Nonvested, Ending balance 1.5 1.3  
Time-Based RSAs [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Nonvested, Beginning balance 0.0    
Granted [1] 0.1    
Vested 0.0    
Forfeited 0.0    
Nonvested, Ending balance 0.1 0.0  
Time-Based RSUs and RSAs [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Nonvested, Beginning balance 1.3    
Granted [1] 0.9    
Vested (0.4)    
Forfeited (0.2)    
Nonvested, Ending balance 1.6 1.3  
Nonvested, Beginning balance, Weighted-average grant-date fair value per share $ 110.54    
Granted, Weighted-average grant-date fair value per share 116.67 [1] $ 114.95 $ 127.75
Vested, Weighted-average grant-date fair value per share 102.12    
Forfeited, Weighted-average grant-date fair value per share 114.64    
Nonvested, Ending balance, Weighted-average grant-date fair value per share $ 123.3 $ 110.54  
[1] Grant number includes Replacement Awards of 0.3 million RSUs and 0.1 million RSAs granted in connection with the Paycor acquisition.