Annual report pursuant to Section 13 and 15(d)

Stock-Based Employee Compensation - Fair Value of Stock Options (Details)

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Stock-Based Employee Compensation - Fair Value of Stock Options (Details) - Long-Term Stock Incentive Plan - USD ($)
$ in Millions
12 Months Ended
Feb. 29, 2024
Feb. 28, 2023
Feb. 28, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Fair value of stock options vested $ 27.3 $ 26.9 $ 23.9
Intrinsic value of stock options exercised 54.6 32.6 269.1
Tax benefit realized from stock options exercised $ 10.4 $ 7.4 $ 62.9