v3.26.1
EARNINGS PER SHARE- Reconciliation from Basic Earnings Per Share to Diluted Earnings Per Share (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
 12 Months Ended
May 31, 2026
May 31, 2025
May 31, 2024
Earnings Per Share [Abstract]      
Net income available to common stockholders $ 3,108 $ 3,219 $ 5,700
Determination of shares:      
Weighted average common shares outstanding (in shares) 1,479.8 1,484.9 1,517.6
Assumed conversion of dilutive stock options and awards (in shares) 1.2 2.7 12.1
DILUTED WEIGHTED AVERAGE COMMON SHARES OUTSTANDING (in shares) 1,481.0 1,487.6 1,529.7
Earnings per common share:      
Basic (in dollars per share) $ 2.10 $ 2.17 $ 3.76
Diluted (in dollars per share) $ 2.10 $ 2.16 $ 3.73