Annual report pursuant to Section 13 and 15(d)

Stock-Based Employee Compensation (Details 3)

v2.4.0.8
Stock-Based Employee Compensation (Details 3) (USD $)
12 Months Ended
Feb. 28, 2014
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Number of Options outstanding 15,314,074
Options outstanding, Weighted Average Remaining Contractual Life 5 years 5 months
Options outstanding, Weighted Average Exercise Price $ 21.82
Options outstanding, Aggregate Intrinsic Value $ 906,746,691
Number of Options exercisable 10,913,019
Options exercisable, Weighted Average Remaining Contractual Life 4 years 6 months
Options exercisable, Weighted Average Exercise Price $ 18.91
Options exercisable, Aggregate Intrinsic Value $ 677,967,080
Range of Exercise Prices, $11.85 - $16.63 [Member]
 
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Range of Exercise Prices, lower range $ 11.85
Range of Exercise Prices, upper range $ 16.63
Number of Options outstanding 2,682,830
Options outstanding, Weighted Average Remaining Contractual Life 5 years 0 months 0 days
Options outstanding, Weighted Average Exercise Price $ 11.96
Range of Exercise Prices, $16.67 - $20.05 [Member]
 
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Range of Exercise Prices, lower range $ 16.67
Range of Exercise Prices, upper range $ 20.05
Number of Options outstanding 4,083,010
Options outstanding, Weighted Average Remaining Contractual Life 5 years 1 month
Options outstanding, Weighted Average Exercise Price $ 17.90
Range of Exercise Prices, $20.60 - $23.02 [Member]
 
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Range of Exercise Prices, lower range $ 20.60
Range of Exercise Prices, upper range $ 23.02
Number of Options outstanding 3,782,757
Options outstanding, Weighted Average Remaining Contractual Life 5 years 2 months
Options outstanding, Weighted Average Exercise Price $ 20.86
Range of Exercise Prices, $23.48 - $26.24 [Member]
 
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Range of Exercise Prices, lower range $ 23.48
Range of Exercise Prices, upper range $ 26.24
Number of Options outstanding 2,936,763
Options outstanding, Weighted Average Remaining Contractual Life 5 years 8 months
Options outstanding, Weighted Average Exercise Price $ 24.86
Range of Exercise Prices, $27.24 - $53.41 [Member]
 
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Range of Exercise Prices, lower range $ 27.24
Range of Exercise Prices, upper range $ 53.41
Number of Options outstanding 1,828,714
Options outstanding, Weighted Average Remaining Contractual Life 6 years 9 months
Options outstanding, Weighted Average Exercise Price $ 42.13