Quarterly report pursuant to Section 13 or 15(d)

Basic and Diluted Earnings Per Share (Basic and Diluted Earnings Per Share) (Details)

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Basic and Diluted Earnings Per Share (Basic and Diluted Earnings Per Share) (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
3 Months Ended 9 Months Ended
Feb. 28, 2023
Feb. 28, 2022
Feb. 28, 2023
Feb. 28, 2022
Basic earnings per share:        
Net income $ 467.4 $ 430.7 $ 1,206.9 $ 1,096.4
Weighted-average common shares outstanding 360.5 360.9 360.3 360.6
Basic earnings per share $ 1.30 $ 1.19 $ 3.35 $ 3.04
Diluted earnings per share:        
Net income $ 467.4 $ 430.7 $ 1,206.9 $ 1,096.4
Weighted-average common shares outstanding 360.5 360.9 360.3 360.6
Dilutive effect of common share equivalents 1.8 2.5 2.0 2.5
Weighted-average common shares outstanding, assuming dilution 362.3 363.4 362.3 363.1
Diluted earnings per share $ 1.29 $ 1.19 $ 3.33 $ 3.02
Weighted-average anti-dilutive common share equivalents 0.7 0.3 0.7 0.3