v3.26.1
Stock-Based Compensation Plans (Other Information Pertaining to Time-Based RSUs and RSAs) (Details) - Time-Based RSUs and RSAs [Member] - USD ($)
$ / shares in Units, $ in Millions
12 Months Ended
May 31, 2026
May 31, 2025
May 31, 2024
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Weighted-average grant-date fair value per share $ 127.21 $ 116.67 $ 114.95
Total grant-date fair value vested $ 101.6 $ 54.7 $ 60.1