Year Ended Aug. 31, | ||||||||
2013 | 2012 | 2011 | ||||||
Weighted-Average Number of Common Shares | 533.7 | 534.1 | 536.5 | |||||
Dilutive Potential Common Shares | 6.0 | 6.1 | 5.9 | |||||
Antidilutive Potential Common Shares | 1.8 | 6.7 | 11.2 | |||||
Shares Excluded From Computation of Dilutive Potential Shares with Exercise Prices Greater than the Average Market Price of Common Shares for the Period | 0.1 | 4.5 | 7.5 | |||||