Annual report pursuant to Section 13 and 15(d)

Summary of Stock Option Activity (Detail)

v2.4.0.8
Summary of Stock Option Activity (Detail) (USD $)
In Millions, except Share data, unless otherwise specified
12 Months Ended
Aug. 31, 2013
Number of Stock Option Outstanding  
Beginning Balance 5,289,384
Granted 276,136
Exercised (1,278,626)
Forfeited (107,343)
Ending Balance 4,179,551
Options exercisable at end of Period 2,609,876
Weighted Average Exercise Price  
Beginning Balance $ 22.33
Granted $ 28.70
Exercised $ 19.48
Forfeited $ 22.10
Ending Balance $ 23.66
Options exercisable at end of Period $ 23.92
Option Outstanding weighted average remaining term 5 years 3 months 18 days
Option exercisable weighted average remaining term 4 years 2 months 12 days
Stock option, aggregate intrinsic Value $ 48.8
Stock option, aggregate intrinsic Value $ 30.8