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STOCK OPTION AND COMPENSATION PLANS (Details) (USD $)
In Millions, except Share data, unless otherwise specified
12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Mar. 31, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock-based compensation expense $ 20 $ 21 $ 20  
Grant date exercise price of stock options percentage of the fair market value per share, minimum (in hundredths)   100.00%    
Grant date stock incentive plans vesting period (in years)   3Y    
Stock Options [Member] | Range of Exercise Prices at least $2-Less than $10 [Member]
       
Options Outstanding [Abstract]        
Options outstanding (in shares) 6,033      
Weighted-average remaining contractual life (in years) 4.70      
Weighted-average exercise price (per share) $ 5.27      
Options Exercisable [Abstract]        
Options exercisable (in shares) 2,991      
Weight-average exercise price (per share) $ 6.83      
Stock Options [Member] | Range of Exercise Prices at least $10-Less than $30 [Member]
       
Options Outstanding [Abstract]        
Options outstanding (in shares) 4,042      
Weighted-average remaining contractual life (in years) 1.51      
Weighted-average exercise price (per share) $ 24.63      
Options Exercisable [Abstract]        
Options exercisable (in shares) 4,042      
Weight-average exercise price (per share) $ 24.63      
Stock Options [Member] | Range of Exercise Prices at least $30-Less than $40 [Member]
       
Options Outstanding [Abstract]        
Options outstanding (in shares) 3,535      
Weighted-average remaining contractual life (in years) 0.93      
Weighted-average exercise price (per share) $ 35.57      
Options Exercisable [Abstract]        
Options exercisable (in shares) 3,535      
Weight-average exercise price (per share) $ 35.57      
2005 Omnibus Long-Term Compensation Plan [Member]
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Common stock eligible that may be granted by plan (in shares) 11,000,000      
Grant date incentive stock options expiration period (in years) 7      
2000 Omnibus Long Term Compensation Plan [Member]
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Common stock eligible that may be granted by plan (in shares) 22,000,000      
Grant date incentive stock options expiration period (in years) 10      
1995 Omnibus Long Term Compensation Plan [Member]
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Common stock eligible that may be granted by plan (in shares) 22,000,000      
Grant date incentive stock options expiration period (in years) 10      
Stock Options [Member]
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock-based compensation expense 3 4 5  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]        
Outstanding, Beginning Balance (in shares) 18,030 23,520 25,207  
Granted (in shares) 2,179 300 1,229  
Exercised (in shares) 0 0 0  
Terminated, Expired, Surrendered (in shares) 6,599 5,790 2,916  
Outstanding, Ending Balance (in shares) 13,610 18,030 23,520  
Exercisable (in shares) 10,568 16,036 20,018  
Range of Price Per Share [Abstract]        
Outstanding, Beginning Balance, Lower Range Limit (per shares) $ 2.64 $ 2.64 $ 7.41  
Granted, Lower Range Limit (per share) $ 2.82 $ 3.96 $ 2.64  
Terminated, Expired, Surrendered, Lower Range Limit (per share) $ 3.40 $ 7.41 $ 7.41  
Outstanding, Ending Balance, Lower Range Limit (per share) $ 2.64 $ 2.64 $ 2.64  
Exercisable, Lower Range Limit (in dollars per share) $ 2.64 $ 2.64 $ 7.41  
Outstanding, Beginning Balance, Upper Range Limit (per share) $ 48.34 $ 65.91 $ 79.63  
Granted, Upper Range Limit (per share) $ 5.22 $ 5.96 $ 6.76  
Terminated, Expired, Surrendered, Upper Range Limit (per share) $ 65.91 $ 65.91 $ 79.63  
Outstanding, Ending Balance, Upper Range Limit (per share) $ 38.04 $ 48.34 $ 65.91  
Exercisable, Upper Range Limit (per share) $ 38.04 $ 48.34 $ 65.91  
Weighted-Average Exercise Price Per Share [Abstract]        
Outstanding, Beginning Balance (per share) $ 25.22 $ 28.55 $ 31.71  
Granted (per share) $ 3.41 $ 4.17 $ 4.61  
Terminated, Expired, Surrendered (per share) $ 31.07 $ 37.68 $ 45.73  
Outstanding, Ending Balance (per share) $ 18.89 $ 25.22 $ 28.55  
Exercisable (per share) $ 23.25 $ 27.64 $ 31.96  
Weighted-average remaining contractual term of all options outstanding (in years)       2.78
Weighted-average remaining contractual term of all options exercisable (in years) 1.92      
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]        
Weighted-average risk-free interest rate (in hundredths) 2.48% 1.50% 2.63%  
Risk-free interest rates, minimum (in hundredths) 2.20% 1.50% 1.90%  
Risk-free interest rates, maximum (in hundredths) 2.50% 2.90% 2.70%  
Weighted-average expected option lives (in years) 6 6 6  
Expected option lives, minimum (in years) 6 6 6  
Weighted-average volatility (in hundredths) 59.00% 57.00% 45.00%  
Expected volatilities, minimum (in hundredths) 59.00% 45.00% 45.00%  
Expected volatilities, maximum (in hundredths) 60.00% 58.00% 45.00%  
Weighted-average expected dividend yield (in hundredths) 0.00% 0.00% 0.40%  
Expected dividend yields, minimum (in hundredths) 0.00% 0.00% 0.00%  
Expected dividend yields, maximum (in hundredths) 0.00%   7.10%  
Weighted-average fair value per option granted (per share) $ 1.92 $ 2.16 $ 2.06  
Unvested Stock and Performance Awards [Member]
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock-based compensation expense 17 17 15  
Stock Appreciation Rights (SARs) [Member] | 2005 Omnibus Long-Term Compensation Plan [Member]
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock Appreciation Rights, exercise price (per share) $ 7.50      
Stock Appreciation Rights (SARs) [Member] | 2000 Omnibus Long Term Compensation Plan [Member]
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
SARs outstanding under the stock incentive plans (in shares) 4,500      
Stock Appreciation Rights, exercise price minimum range (per share) $ 23.25      
Stock Appreciation Rights, exercise price maximum range (per share) $ 27.55      
Unvested Stock Options [Member]
       
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]        
Unrecognized compensation cost $ 3      
Unrecognized compensation cost expected weighted-average recognition period (in years) 1.7