v3.26.1
Borrowings - Credit Agreements (Details) - USD ($)
May 31, 2026
Feb. 28, 2026
Schedule of Debt [Line Items]    
Short-term borrowings $ 336,300,000 $ 272,000,000.0
Outstanding commercial paper 10,262,300,000  
Revolving credit facility    
Schedule of Debt [Line Items]    
Short-term borrowings $ 0 $ 0
Weighted average interest rate 0.00% 0.00%
SOFR margin 0.00% 0.00%
Remaining borrowing capacity $ 1,902,600,000 $ 1,966,600,000
Aggregate principal amount 2,250,000,000 2,250,000,000
Letters of credit    
Schedule of Debt [Line Items]    
Outstanding letters of credit 10,900,000 11,300,000
Aggregate principal amount 200,000,000.0  
Commercial paper    
Schedule of Debt [Line Items]    
Short-term borrowings $ 336,300,000 $ 272,000,000.0
Weighted average interest rate 4.10% 3.90%
Outstanding commercial paper $ 336,500,000 $ 272,100,000
Aggregate principal amount $ 2,250,000,000