Annual report pursuant to Section 13 and 15(d)

STOCK-BASED COMPENSATION, Stock Options (Details)

v2.4.0.6
STOCK-BASED COMPENSATION, Stock Options (Details) (USD $)
In Millions, except Share data, unless otherwise specified
 12 Months Ended
Dec. 31, 2011
Y
Dec. 31, 2010
Y
Dec. 31, 2009
Y
Exercise Price Range 1 [Member]
      
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]      
Lower range limit (in dollars per share) $ 1.00    
Upper range limit (in dollars per share) $ 4.99    
Outstanding (in shares) 3,165,000    
Outstanding, weighted average remaining contractual life (in years) 7.2    
Outstanding, weighted average exercise price (in dollars per share) $ 3.07    
Exercisable (in shares) 1,146,000    
Exercisable, weighted average remaining contractual life (in years) 7.2    
Exercisable, weighted average exercise price (in dollars per share) $ 3.01    
Exercise Price Range 2 [Member]
      
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]      
Lower range limit (in dollars per share) $ 5.00    
Upper range limit (in dollars per share) $ 9.99    
Outstanding (in shares) 3,924,000    
Outstanding, weighted average remaining contractual life (in years) 7.6    
Outstanding, weighted average exercise price (in dollars per share) $ 6.68    
Exercisable (in shares) 2,036,000    
Exercisable, weighted average remaining contractual life (in years) 7.3    
Exercisable, weighted average exercise price (in dollars per share) $ 5.76    
Exercise Price Range 3 [Member]
      
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]      
Lower range limit (in dollars per share) $ 10.00    
Upper range limit (in dollars per share) $ 14.99    
Outstanding (in shares) 9,929,000    
Outstanding, weighted average remaining contractual life (in years) 7.4    
Outstanding, weighted average exercise price (in dollars per share) $ 11.89    
Exercisable (in shares) 4,963,000    
Exercisable, weighted average remaining contractual life (in years) 6.1    
Exercisable, weighted average exercise price (in dollars per share) $ 12.18    
Exercise Price Range 4 [Member]
      
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]      
Lower range limit (in dollars per share) $ 15.00    
Upper range limit (in dollars per share) $ 19.99    
Outstanding (in shares) 1,390,000    
Outstanding, weighted average remaining contractual life (in years) 5.8    
Outstanding, weighted average exercise price (in dollars per share) $ 18.38    
Exercisable (in shares) 1,110,000    
Exercisable, weighted average remaining contractual life (in years) 5.7    
Exercisable, weighted average exercise price (in dollars per share) $ 18.41    
Exercise Price Range 5 [Member]
      
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]      
Lower range limit (in dollars per share) $ 20.00    
Upper range limit (in dollars per share) $ 24.99    
Outstanding (in shares) 1,717,000    
Outstanding, weighted average remaining contractual life (in years) 5.1    
Outstanding, weighted average exercise price (in dollars per share) $ 24.47    
Exercisable (in shares) 1,717,000    
Exercisable, weighted average remaining contractual life (in years) 5.1    
Exercisable, weighted average exercise price (in dollars per share) $ 24.47    
Exercise Price Range 6 [Member]
      
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]      
Lower range limit (in dollars per share) $ 25.00    
Upper range limit (in dollars per share) $ 29.99    
Outstanding (in shares) 883,000    
Outstanding, weighted average remaining contractual life (in years) 3.0    
Outstanding, weighted average exercise price (in dollars per share) $ 29.19    
Exercisable (in shares) 883,000    
Exercisable, weighted average remaining contractual life (in years) 3.0    
Exercisable, weighted average exercise price (in dollars per share) $ 29.19    
Exercise Price Range 7 [Member]
      
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]      
Lower range limit (in dollars per share) $ 30.00    
Upper range limit (in dollars per share) $ 34.99    
Outstanding (in shares) 5,000    
Outstanding, weighted average remaining contractual life (in years) 1.7    
Outstanding, weighted average exercise price (in dollars per share) $ 32.50    
Exercisable (in shares) 5,000    
Exercisable, weighted average remaining contractual life (in years) 1.7    
Exercisable, weighted average exercise price (in dollars per share) $ 32.50    
Exercise Price Range 8 [Member]
      
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]      
Lower range limit (in dollars per share) $ 35.00    
Upper range limit (in dollars per share) $ 39.99    
Outstanding (in shares) 416,000    
Outstanding, weighted average remaining contractual life (in years) 3.4    
Outstanding, weighted average exercise price (in dollars per share) $ 39.93    
Exercisable (in shares) 416,000    
Exercisable, weighted average remaining contractual life (in years) 3.4    
Exercisable, weighted average exercise price (in dollars per share) $ 39.93    
Stock Incentive Plan [Member]
      
Stock-based compensation, additional disclosures [Abstract]      
Shares available for future grants (in shares) 11,500,000    
Stock Options [Member]
      
Assumptions used to calculate the fair value of options [Abstract]      
Risk-free interest rate (in hundredths)   1.93% 2.00%
Risk-free interest rate, minimum (in hundredths) 0.99%    
Risk-free interest rate, maximum (in hundredths) 2.16%    
Dividend yield (in hundredths) 0.00% 0.00% 0.00%
Volatility factors (in hundredths)   39.60% 39.00%
Volatility factors, minimum (in hundredths) 39.60%    
Volatility factors, maximum (in hundredths) 62.50%    
Weighted average expected life (in years) 6.25 6.25  
Weighted average expected life, minimum (in years)     6.25
Weighted average expected life, maximum (in years)     6.50
Summary of stock option activity [Roll Forward]      
Outstanding at beginning of period (in shares) 20,464,000 7,099,000 4,804,000
Granted (in shares) 2,512,000 2,471,000 2,385,000
Merger conversion (in shares) 0 15,476,000 0
Exercised (in shares) (529,000) (1,642,000) 0
Forfeited or expired (in shares) (1,018,000) (2,940,000) (90,000)
Outstanding at end of period (in shares) 21,429,000 20,464,000 7,099,000
Exercisable at end of period (in shares) 12,276,000 9,454,000 2,078,000
Summary of stock option activity, additional disclosures [Abstract]      
Price, Outstanding at beginning of period (in dollars per share) $ 12.41 $ 12.13 $ 16.78
Price, Granted (in dollars per share) $ 11.22 $ 11.01 $ 2.75
Price, Merger conversion (in dollars per share) $ 0 $ 12.72 $ 0
Price, Exercised (in dollars per share) $ 5.13 $ 4.76 $ 0
Price, Forfeited or expired (in dollars per share) $ 15.20 $ 16.35 $ 11.59
Price, Outstanding at end of period (in dollars per share) $ 12.33 $ 12.41 $ 12.13
Price, Exercisable at end of period (in dollars per share) $ 14.71 $ 16.43 $ 17.21
Weighted average fair value per option granted (in dollars per share) $ 5.27 $ 4.59 $ 1.16
Stock-based compensation, additional disclosures [Abstract]      
Intrinsic value of stock options exercised $ 3.0 $ 12.8  
Cash received from stock option exercises 2.7 8.6  
Total intrinsic value of options outstanding 24.0    
Total intrinsic value of options exercisable $ 11.5