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Net Income Per Share
 3 Months Ended
Mar. 31, 2014
Net Income Per Share [Abstract]  
Net Income Per Share [Text Block]
3.Net Income Per Share

The following table sets forth the computation of Net Income Per Share for the three-month periods ended March 31, 2014 and 2013 (in thousands, except per share data):

 
 
Three Months Ended
 
 
 
March 31,
 
 
 
2014
  
2013
 
Numerator for Basic and Diluted Earnings Per Share -
 
  
 
   Net Income
 
$
660,928
  
$
494,725
 
 
        
Denominator for Basic Earnings Per Share -
        
Weighted Average Shares
  
542,278
   
538,717
 
Potential Dilutive Common Shares -
        
Stock Options/SARs
  
2,426
   
2,197
 
Restricted Stock/Units and Performance Units/Stock
  
3,367
   
3,612
 
Denominator for Diluted Earnings Per Share -
        
Adjusted Diluted Weighted Average Shares
  
548,071
   
544,526
 
 
        
Net Income Per Share
        
Basic
 
$
1.22
  
$
0.92
 
Diluted
 
$
1.21
  
$
0.91
 

The diluted earnings per share calculation excluded stock options and SARs that were anti-dilutive.  Shares underlying the excluded stock options and SARs totaled 0.2 million and 0.2 million shares for the three months ended March 31, 2014 and 2013, respectively.