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Capital Stock and Stock-Based Awards - Schedule of stock option activity for the Class A Stock and Common Stock plans (Details)
$ / shares in Units, $ in Millions
 12 Months Ended
May 31, 2023
USD ($)
$ / shares
shares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]  
Beginning balance, Outstanding (in shares) | shares 4,257,925
Granted (Shares) | shares 314,996
Exercised (Shares) | shares (689,711)
Expired, cancellations and forfeited (Shares) | shares (694,809)
Ending balance, Outstanding (in shares) | shares 3,188,401
Exercisable (Shares) at May 31, 2016 | shares 1,717,085
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]  
Beginning balance, Outstanding (in dollars per share) | $ / shares $ 30.54
Granted (in dollars per share) | $ / shares 41.90
Exercised (in dollars per share) | $ / shares 31.28
Expired, cancellations and forfeited (in dollars per share) | $ / shares 39.06
Ending balance, Outstanding at (in dollars per share) | $ / shares 29.63
Weighted Average Exercise Price, Exercisable at period end (in dollars per share) | $ / shares $ 31.16
Average Remaining Contractual Term (in years), Outstanding period end 4 years 7 months 6 days
Average Remaining Contractual Term (in years), Exercisable at period end 4 years 2 months 12 days
Aggregate Intrinsic Value, Outstanding at period end | $ $ 41.3
Aggregate Intrinsic Value, Exercisable at period end | $ $ 19.7