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Earnings per Share (Tables)
9 Months Ended
Sep. 30, 2011
Reconciling the Weighted-Average Number of Shares Used in the Earnings Per Share Calculations
The following table reconciles the weighted-average number of shares used in the basic earnings per share calculations to the weighted-average number of shares used to compute diluted earnings per share.
 
   
Three Months Ended
   
Nine Months Ended
 
   
September 30,
   
September 30,
 
(In millions)
 
2011
   
2010
   
2011
   
2010
 
Weighted-average number of shares outstanding - basic
    147.1       140.9       146.3       140.2  
Employee compensation-related shares, including stock options
    2.8       5.0       3.5          
Conversion of preferred stock
    64.7       66.2       65.5          
Weighted-average number of shares outstanding - diluted
    214.6       212.1       215.3       140.2