Annual report pursuant to Section 13 and 15(d)

Long-Term Financing (Schedule of Long-Term Debt, at Amortized Cost) (Details)

v3.23.2
Long-Term Financing (Schedule of Long-Term Debt, at Amortized Cost) (Details) - USD ($)
$ in Millions
May 31, 2023
May 31, 2022
Debt Instrument [Line Items]    
Total long-term borrowings $ 800.0 $ 800.0
Less: Debt issuance costs, net of accumulated amortization (1.8) (2.3)
Long-term borrowings, net of debt issuance costs 798.2 797.7
Senior Notes, Series A [Member] | Senior Notes [Member]    
Debt Instrument [Line Items]    
Total long-term borrowings 400.0 400.0
Senior Notes, Series B [Member] | Senior Notes [Member]    
Debt Instrument [Line Items]    
Total long-term borrowings $ 400.0 $ 400.0