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Stock-Based Compensation Plans and Arrangements (Tables)
 12 Months Ended
Dec. 31, 2012
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]  
Black-Scholes Model Assumptions for Calculating Stock Option Fair Values

The fair values of the options granted in the years ended December 31, 2012, 2011 and 2010 were estimated as of the grant date using a Black-Scholes option pricing model with the following weighted average assumptions:

 

     Years Ended December 31,  
     2012     2011     2010  

Risk-free interest rate

      .60 %      1.57 %      1.60 % 

Expected volatility

      44 %      54 %      60 % 

Expected dividend rate

      3.13 %      2.58 %      0.00 % 

Expected life of the option

      2.8 years        4.1 years        3.3 years   

Weighted average fair value of options granted

    $ 4.12      $ 5.18      $ 4.40   
Stock Option Activity

The following table summarizes stock option activity for the year ended December 31, 2012.

(Dollars in millions, except per share data)

    Number of
Options		     Weighted
Average
Exercise
Price per
Share		      Weighted
Average
Remaining
Contractual
Term		      Aggregate
Intrinsic
Value(1)		  

Outstanding at December 31, 2011

      32,671,065      $ 19.78         

Granted

      2,821,847        15.99         

Exercised(2)(3)

      (5,221,677 )      10.78         

Canceled

      (4,278,488 )      27.92         
  

 

 

    

 

 

        

Outstanding at December 31, 2012(4)(5)

      25,992,747      $ 19.84         5.0 yrs       $ 86   
  

 

 

    

 

 

     

 

 

     

 

 

  

Exercisable at December 31, 2012

      17,653,379      $ 22.25         4.5 yrs       $ 59   
  

 

 

    

 

 

     

 

 

     

 

 

  

 

(1)  The aggregate intrinsic value represents the total intrinsic value (the aggregate difference between our closing stock price on December 31, 2012 and the exercise price of in-the-money options) that would have been received by the option holders if all in-the-money options had been exercised on December 31, 2012.
(2)  The total intrinsic value of options exercised was $27 million, $14 million and $1 million for the years ended December 31, 2012, 2011 and 2010, respectively.
(3)  No cash was received from option exercises for the year ended December 31, 2012. The actual tax benefit realized for the tax deductions from option exercises totaled $10 million for the year ended December 31, 2012.
(4)  As of December 31, 2012, there was $4 million of unrecognized compensation cost related to stock options net of estimated forfeitures, which is expected to be recognized over a weighted average period of 1.4 years.
(5)  For net-settled options, gross number is reflected.
Restricted Stock Activity

The following table summarizes restricted stock activity for the year ended December 31, 2012.

     Number of
Shares		     Weighted
Average Grant
Date
Fair Value		  

Non-vested at December 31, 2011

      412,862      $ 12.07   

Granted

      60,652        15.99   

Vested(1)

      (285,722 )      13.24   

Canceled

      —          —     
  

 

 

    

 

 

  

Non-vested at December 31, 2012(2)

      187,792      $ 11.55   
  

 

 

    

 

 

  

 

(1)  The total fair value of shares that vested during the years ended December 31, 2012, 2011 and 2010 was $4 million, $6 million and $9 million, respectively.
(2)  As of December 31, 2012, there was $.2 million of unrecognized compensation cost related to restricted stock net of estimated forfeitures, which is expected to be recognized over a weighted average period of .8 years.
Restricted Stock Unit and Performance Stock Unit Activity

The following table summarizes RSU and PSU activity for the year ended December 31, 2012.

     Number of
RSUs/
PSUs		     Weighted
Average Grant
Date
Fair Value		  

Outstanding at December 31, 2011

      2,730,690      $ 14.67   

Granted

      2,746,912        16.00   

Vested and converted to common stock(1)

      (920,332 )      14.60   

Canceled

      (83,806 )      15.41   
  

 

 

    

 

 

  

Outstanding at December 31, 2012(2)

      4,473,464      $ 15.49   
  

 

 

    

 

 

  

 

(1)  The total fair value of RSUs/PSUs that vested and converted to common stock during the years ended December 31, 2012, 2011 and 2010 was $13 million, $.4 million and $.4 million, respectively.
(2)  As of December 31, 2012, there was $14 million of unrecognized compensation cost related to RSUs/PSUs net of estimated forfeitures, which is expected to be recognized over a weighted average period of 1.9 years.
Black-Scholes Model Assumptions for Calculating ESPP Fair Values

The fair values of the stock purchase rights of the ESPP offerings were calculated using a Black-Scholes option pricing model with the following weighted average assumptions.

 

     Years Ended December 31,  
       2012         2011         2010    

Risk-free interest rate

      .13 %      .27 %      .33 % 

Expected volatility

      29 %      42 %      61 % 

Expected dividend rate

      3.27 %      1.87 %      0.00 % 

Expected life of the option

      1 year        1 year        1 year   

Weighted average fair value of stock purchase rights

    $ 3.01      $ 3.63      $ 3.30