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EMPLOYEE BENEFIT PLANS (Details) (USD $)
In Millions, except Share data, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Stock Options
     
EMPLOYEE BENEFIT PLANS      
Expiration period from the date of grant 10 years    
Portion of awards vesting on each of the first three anniversary dates of the grant (as a percent) 33.00%    
Vesting period 3 years    
Information pertaining to the awards on the basis of grant date      
Awards granted (in shares) 477,500 0 241,002
Exercise Price Per Share (in dollars per share) $ 22.79   $ 20.12
Fair Value Per Share at Grant Date (in dollars per share) $ 12.05    
Stock Options | Grant Date, February 29, 2012
     
EMPLOYEE BENEFIT PLANS      
Stock-based compensation costs, pretax $ 1    
Information pertaining to the awards on the basis of grant date      
Awards granted (in shares) 379,000    
Exercise Price Per Share (in dollars per share) $ 22.60    
Fair Value Per Share at Grant Date (in dollars per share) $ 11.96    
Stock Based Compensation Expense 1    
Stock Options | Grant date, February 25, 2010
     
EMPLOYEE BENEFIT PLANS      
Stock-based compensation costs, pretax 1    
Information pertaining to the awards on the basis of grant date      
Awards granted (in shares) 232,000    
Fair Value Per Share at Grant Date (in dollars per share) $ 11.56    
Stock Based Compensation Expense 1    
Stock Options | Grant date, February 26, 2009
     
EMPLOYEE BENEFIT PLANS      
Stock-based compensation costs, pretax 1    
Information pertaining to the awards on the basis of grant date      
Awards granted (in shares) 2,746,000    
Exercise Price Per Share (in dollars per share) $ 4.56    
Fair Value Per Share at Grant Date (in dollars per share) $ 2.84    
Stock Based Compensation Expense 1    
Restricted Stock Units
     
EMPLOYEE BENEFIT PLANS      
Contractual right to receive shares of common stock for a stock based award 1    
Portion of awards vesting on each of the first three anniversary dates of the grant (as a percent) 33.00%    
Vesting period 3 years    
Information pertaining to the awards on the basis of grant date      
Awards granted (in shares) 1,654,337 1,138,350 1,284,825
Fair Value Per Share at Grant Date (in dollars per share) $ 22.18 27.04 $ 20.12
Restricted Stock Units | Grant Date, February 29, 2012
     
EMPLOYEE BENEFIT PLANS      
Stock-based compensation costs, pretax 7    
Information pertaining to the awards on the basis of grant date      
Stock Based Compensation Expense 7    
Awards granted (in shares) 1,019,000    
Fair Value Per Share at Grant Date (in dollars per share) $ 22.60    
Restricted Stock Units | Grant date, February 25, 2010
     
EMPLOYEE BENEFIT PLANS      
Stock-based compensation costs, pretax 8    
Information pertaining to the awards on the basis of grant date      
Fair Value Per Share at Grant Date (in dollars per share) $ 20.12    
Stock Based Compensation Expense 8    
Awards granted (in shares) 1,065,000    
Fair Value Per Share at Grant Date (in dollars per share) $ 20.12    
Restricted Stock Units | Grant Date, May 11, 2012
     
EMPLOYEE BENEFIT PLANS      
Stock-based compensation costs, pretax 2    
Information pertaining to the awards on the basis of grant date      
Stock Based Compensation Expense 2    
Awards granted (in shares) 67,000    
Fair Value Per Share at Grant Date (in dollars per share) $ 20.28    
Restricted Stock Units | Grant Date, November 4, 2011
     
EMPLOYEE BENEFIT PLANS      
Stock-based compensation costs, pretax 1    
Information pertaining to the awards on the basis of grant date      
Stock Based Compensation Expense 1    
Awards granted (in shares) 60,000    
Fair Value Per Share at Grant Date (in dollars per share) $ 19.44    
Restricted Stock Units | Grant Date, February 23, 2011
     
EMPLOYEE BENEFIT PLANS      
Stock-based compensation costs, pretax 9    
Information pertaining to the awards on the basis of grant date      
Stock Based Compensation Expense 9    
Awards granted (in shares) 935,000    
Fair Value Per Share at Grant Date (in dollars per share) $ 27.60    
Restricted Stock Units | Grant date, Other grants
     
EMPLOYEE BENEFIT PLANS      
Stock-based compensation costs, pretax 3    
Information pertaining to the awards on the basis of grant date      
Stock Based Compensation Expense 3    
2008 Stock Incentive Plan
     
EMPLOYEE BENEFIT PLANS      
Shares available under the plan 4,000,000    
Continuing operations
     
EMPLOYEE BENEFIT PLANS      
Stock-based compensation costs, pretax 33 25 22
Stock-based compensation costs, after tax 21 15 14
Information pertaining to the awards on the basis of grant date      
Stock Based Compensation Expense $ 33 25 $ 22