Annual report pursuant to Section 13 and 15(d)

Long-Term Financing (Information Related To Senior Notes) (Details)

v3.20.2
Long-Term Financing (Information Related To Senior Notes) (Details) - Senior Notes [Member]
12 Months Ended
May 31, 2020
Senior Notes, Series A [Member]  
Debt Instrument [Line Items]  
Stated interest rate 4.07%
Effective interest rate 4.16%
Interest rate type Fixed
Interest payment dates Semi-annual, in arrears
Principal payment dates Mar. 13, 2026
Note type Unsecured
Senior Notes, Series B [Member]  
Debt Instrument [Line Items]  
Stated interest rate 4.25%
Effective interest rate 4.32%
Interest rate type Fixed
Interest payment dates Semi-annual, in arrears
Principal payment dates Mar. 13, 2029
Note type Unsecured