Annual report pursuant to Section 13 and 15(d)

Stock-Based Employee Compensation - Summary of Stock Option Activity (Details)

v3.21.1
Stock-Based Employee Compensation - Summary of Stock Option Activity (Details) - Long-Term Stock Incentive Plan - $ / shares
12 Months Ended
Feb. 28, 2021
Feb. 29, 2020
Feb. 28, 2019
Number of Options [Rollforward]      
Number of Options, Outstanding, beginning of period (in shares) 4,525,418 5,691,219 7,444,701
Number of Options, Granted (in shares) 973,286 639,957 540,640
Number of Options, Exercised (in shares) (1,025,179) (1,618,484) (2,156,508)
Number of Options, Forfeited (in shares) (56,897) (175,917) (133,250)
Number of Options, Expired (in shares) (16,821) (11,357) (4,364)
Number of Options, Outstanding, end of period (in shares) 4,399,807 4,525,418 5,691,219
Number of Options, Exercisable (in shares) 2,754,888 3,330,164 4,456,486
Weighted Average Exercise Price [Rollforward]      
Options, Weighted Average Exercise Price, Outstanding, beginning of period (in dollars per share) $ 108.87 $ 81.87 $ 56.33
Options, Weighted Average Exercise Price, Granted (in dollars per share) 154.62 206.76 227.91
Options, Weighted Average Exercise Price, Exercised (in dollars per share) 47.42 41.77 23.55
Options, Weighted Average Exercise Price, Forfeited (in dollars per share) 185.59 201.44 187.84
Options, Weighted Average Exercise Price, Expired (in dollars per share) 221.16 224.07 175.86
Options, Weighted Average Exercise Price, Outstanding, end of period (in dollars per share) 131.89 108.87 81.87
Options, Weighted Average Exercise Price, Exercisable (in dollars per share) $ 104.94 $ 75.61 $ 53.18