v3.26.3
Fair Value of Financial Instruments - Debt and Investments (Details) - USD ($)
$ in Millions
Aug. 31, 2026
Feb. 28, 2026
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt, including current portion $ 10,199.2 $ 10,296.5
Carrying amount    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt, including current portion 10,199.2 10,296.5
Fair value    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt, including current portion $ 9,444.9 $ 9,858.2