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Capital Stock (Tables)
12 Months Ended
Dec. 31, 2014
Common Stock and Treasury Stock Activity

The Company has 750 million authorized shares of common stock, par value $0.01 per share. The number of shares of common stock and treasury stock and the share activity for 2014 and 2013 were as follows:

 

     
    Common Shares      Treasury Shares  
         
     2014     2013      2014      2013  

Balance at the beginning of the year

    166,667,936        163,855,647         2,404,320         700,102   

Stock plan shares issued

    2,877,761        4,516,507                   

Shares surrendered by optionees

    (288,797     (296,100      288,797         296,100   

Common stock repurchases

    (11,116,772     (1,408,118      11,116,772         1,408,118   

Balance at the end of the year

    158,140,128        166,667,936         13,809,889         2,404,320