Quarterly report pursuant to Section 13 or 15(d)

Other Expense, Net (Schedule of Other Expense, Net) (Details)

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Other Expense, Net (Schedule of Other Expense, Net) (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Feb. 28, 2022
Feb. 28, 2021
Feb. 28, 2022
Feb. 28, 2021
Other Expense, Net [Abstract]        
Interest income on corporate investments $ 0.5 $ 0.3 $ 1.1 $ 1.4
Interest expense (9.0) (8.8) (27.5) (26.8)
Other   2.5 16.2 6.8
Other expense, net $ (8.5) $ (6.0) $ (10.2) $ (18.6)