Current report filing

Stock-Based Employee Compensation (Details 2)

v3.8.0.1
Stock-Based Employee Compensation (Details 2) - USD ($)
$ in Millions
12 Months Ended
Feb. 28, 2017
Feb. 29, 2016
Feb. 28, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]      
Fair value of stock options vested $ 20.3 $ 20.1 $ 19.6
Intrinsic value of stock options exercised 260.4 514.9 185.8
Tax benefit realized from stock options exercised $ 106.0 $ 193.5 $ 62.2