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Earnings Per Share (Tables)
 9 Months Ended
Sep. 30, 2013
Computations of Weighted Average Shares Outstanding

The computations of the weighted average shares outstanding for the three and nine months ended September 30, 2013 and 2012 are as follows:

 

     Three
months ended
September 30,		      Nine
months ended
September 30,		  

(in millions)

    2013      2012      2013      2012  

Weighted average shares outstanding:

            

Basic

      111.5         114.9         110.1         119.0   

Dilutive share-based awards

      0.5         0.8         0.6         0.7   
  

 

 

     

 

 

     

 

 

     

 

 

  

Diluted

      112.0         115.7         110.7         119.7