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Stock-Based Compensation (Tables)
12 Months Ended
Dec. 31, 2012
Stock Option Activity

Stock option activity for the three years ended December 31, 2012 was as follows:

 

     Option Shares     Weighted Average Exercise Price  
         2012             2011             2010             2012              2011              2010      
     (in millions)  

Outstanding at beginning of year

     2.0        1.9        2.1      $ 10.16       $ 12.61       $ 13.60   

Granted

     0.6        0.7        0.4        5.52         6.50         8.93   

Canceled or expired

     (0.3     (0.6     (0.6     9.88         14.02         13.47   
  

 

 

   

 

 

   

 

 

   

 

 

    

 

 

    

 

 

 

Outstanding at end of year

     2.3        2.0        1.9      $ 8.93       $ 10.16       $ 12.61   
  

 

 

   

 

 

   

 

 

   

 

 

    

 

 

    

 

 

 

Exercisable at end of year

     1.3        1.0        1.2      $ 11.22       $ 13.12       $ 14.84   
  

 

 

   

 

 

   

 

 

   

 

 

    

 

 

    

 

 

 
Summary of Information Concerning Stock Options Outstanding

The following table summarizes information for stock options outstanding as of December 31, 2012 under all plans:

 

     Options Outstanding             Options Exercisable  

Range of Exercise Prices

   Shares      Weighted
Average
Remaining Life
     Weighted
Average
Exercise
Price
     Shares      Weighted
Average
Exercise
Price
 
     (in millions)      (in years)             (in millions)         

  5.01 — 10.00

     1.5         8.1       $ 6.12         0.5       $ 6.51   

10.01 — 15.00

     0.4         5.5         10.74         0.4         10.81   

15.01 — 20.00

     0.4         2.3         16.87         0.4         16.87   
  

 

 

    

 

 

    

 

 

    

 

 

    

 

 

 
     2.3         6.6       $ 8.93         1.3       $ 11.22   
  

 

 

    

 

 

    

 

 

    

 

 

    

 

 

 
Summary of Restricted Stock Grants

The following table summarizes restricted stock grants for the 12-month period ended December 31, 2012:

 

     Number of
Restricted Shares
    Weighted Average
Price per Share
 
     (in millions)        

Outstanding and non-vested at December 31, 2011

     0.4      $ 7.99   

Granted

     0.1        5.72   

Vested

     (0.2     7.14   
  

 

 

   

 

 

 

Outstanding and non-vested at December 31, 2012

     0.3      $ 7.38   
  

 

 

   

 

 

 
Performance Share
 
Assumptions Used to Calculate Fair Value

The fair value is calculated using a Monte Carlo simulation model with the following assumptions:

 

     2010  

Dividend yield

     2.4

Expected volatility

     64

Risk free interest rate

     1.5

Weighted average expected life in years

     2.7   
Stock Option
 
Assumptions Used to Calculate Fair Value

The fair value of each option grant was estimated using the Black-Scholes option pricing model with the following assumptions:

 

     2012     2011     2010  

Dividend yield

     0.7     0.6     2.9

Expected volatility

     59     52     48

Risk free interest rate

     0.9     2.2     2.0

Weighted average expected option life in years

     5.6        5.9        5.9