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Earnings per Share (Tables)
12 Months Ended
Sep. 30, 2012
Earnings Per Share  
Schedule of Earnings Per Share, Basic and Diluted
The calculation of basic and diluted earnings per share (EPS) is as follows:  
           
30 September 2012  2011  2010 
           
Numerator         
 Income from continuing operations$ 999.2 $ 1,134.3 $ 941.6 
 Income from discontinued operations  168.1   89.9   87.5 
 Net Income Attributable to Air Products$ 1,167.3 $ 1,224.2 $ 1,029.1 
           
Denominator (in millions)         
Weighted average number of common shares outstanding  211.2   213.0   212.2 
Effect of dilutive securities         
 Employee stock options  2.6   3.7   3.9 
 Other award plans  .9   .9   1.0 
    3.5   4.6   4.9 
Weighted average number of common shares outstanding          
 assuming dilution  214.7   217.6   217.1 
           
Basic EPS Attributable to Air Products         
 Income from continuing operations$ 4.73 $ 5.33 $ 4.44 
 Income from discontinued operations  .80   .42   .41 
 Net Income Attributable to Air Products$ 5.53 $ 5.75 $ 4.85 
           
Diluted EPS Attributable to Air Products         
 Income from continuing operations$ 4.66 $ 5.22 $ 4.34 
 Income from discontinued operations  .78   .41   .40 
 Net Income Attributable to Air Products$ 5.44 $ 5.63 $ 4.74