Borrowings - Schedule of Borrowings (Details) - USD ($) $ in Millions	Aug. 31, 2025	Feb. 28, 2025
Schedule of Debt [Line Items]
Short-term borrowings	$ 252.5	$ 806.7
Long-term Debt
Other, current	4.3
Other, long-term	3.0
Other, total	7.3	8.7
Long-term debt, current	504.1	1,402.0
Long-term debt, long-term	9,788.3	9,289.0
Long-term debt, total	10,292.4	10,691.0
Unsecured debt | Senior notes
Long-term Debt
Unsecured debt, current	499.8
Unsecured debt, long-term	9,785.3
Unsecured debt, total	10,285.1	10,682.3
Commercial paper
Schedule of Debt [Line Items]
Short-term borrowings	$ 252.5	$ 806.7