Annual report [Section 13 and 15(d), not S-K Item 405]

Short-term Financing (Description of Credit Facilities) (Details)

v3.25.2
Short-term Financing (Description of Credit Facilities) (Details) - Revolving Credit Facility [Member] - USD ($)
$ in Millions
12 Months Ended
May 31, 2025
May 31, 2024
Line of Credit Facility [Line Items]    
Maximum Amount Available $ 2,000.0  
Amount Outstanding [1] $ 18.6 $ 18.7
JP Morgan Chase Bank, N.A. [Member] | JPM $1 Billion Credit Facility [Member]    
Line of Credit Facility [Line Items]    
Expiration Date [2] Apr. 12, 2029  
Maximum Amount Available [2] $ 1,000.0  
JP Morgan Chase Bank, N.A. [Member] | JPM $750 Million Credit Facility [Member]    
Line of Credit Facility [Line Items]    
Expiration Date [2] Sep. 17, 2026  
Maximum Amount Available [2] $ 750.0  
PNC Bank, National Association [Member] | PNC $250 Million Credit Facility [Member]    
Line of Credit Facility [Line Items]    
Expiration Date Feb. 06, 2026  
Maximum Amount Available $ 250.0  
Amount Outstanding $ 18.6 $ 18.7
[1] The total amount available under these credit facilities as of May 31, 2025 was approximately $2.0 billion. Amounts borrowed under the PNC credit facility remain outstanding as of the date of this report.
[2] JPM acts as the administrative agent for this syndicated credit facility.