Annual report pursuant to Section 13 and 15(d)

Stock-Based Employee Compensation (Details 1)

v2.4.0.6
Stock-Based Employee Compensation (Details 1) (USD $)
 12 Months Ended
Feb. 29, 2012
Feb. 28, 2011
Feb. 28, 2010
Stock Option Activity      
Number of Options Outstanding, Beginning Balance 29,843,605 34,846,095 34,095,963
Number of Options Exercisable, Beginning Balance 18,148,632 19,277,958 17,499,016
Options Exercisable, Weighted Average Exercise Price, Beginning Balance $ 20.31 $ 18.95 $ 17.99
Number of Options Outstanding, Granted 2,745,309 3,340,413 7,632,249
Number of Options Outstanding, Exercised (3,438,706) (5,100,677) (1,453,431)
Number of Options Outstanding, Forfeited (550,203) (1,331,443) (2,683,940)
Number of Options Outstanding, Expired (1,668,708) (1,910,783) (2,744,746)
Number of Options Outstanding, Ending Balance 26,931,297 29,843,605 34,846,095
Options Outstanding, Weighted Average Exercise Price, Beginning Balance $ 18.63 $ 18.05 $ 19.39
Options Outstanding, Weighted Average Exercise Price, Granted $ 20.62 $ 16.69 $ 11.87
Options Outstanding, Weighted Average Exercise Price, Exercised $ 14.75 $ 12.22 $ 8.43
Options Outstanding, Weighted Average Exercise Price, Forfeited $ 16.91 $ 17.42 $ 18.51
Options Outstanding, Weighted Average Exercise Price, Expired $ 24.03 $ 22.54 $ 22.12
Options Outstanding, Weighted Average Exercise Price, Ending Balance $ 19.03 $ 18.63 $ 18.05
Number of Options Exercisable, Ending Balance 18,198,577 18,148,632 19,277,958
Options Exercisable, Weighted Average Exercise Price, Ending Balance $ 20.18 $ 20.31 $ 18.95