Annual report pursuant to Section 13 and 15(d)

STOCK-BASED COMPENSATION PLANS (Details 2)

v3.3.1.900
STOCK-BASED COMPENSATION PLANS (Details 2) - USD ($)
$ / shares in Units, $ in Millions
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Nonvested shares      
Vesting period 3 years    
Performance Awards      
Nonvested shares      
Weighted-average volatility rate 30.00%    
Risk-free interest rate (as a percent) 0.70%    
Nonvested shares      
Weighted Average Grant-Date Fair Value      
Total unrecognized compensation cost related to nonvested share-based compensation arrangements granted under the Stock Incentive Plan $ 20    
Weighted-average period over which cost is expected to be recognized 1 year 9 months 18 days    
Value of share awards vested $ 20 $ 19 $ 18
Equity Awards      
Nonvested shares      
Nonvested at the beginning of the period (in shares) 1,821,000    
Granted (in shares) 855,000    
Vested (in shares) (779,000)    
Forfeited (in shares) (43,000)    
Nonvested at the end of the period (in shares) 1,854,000 1,821,000  
Weighted Average Grant-Date Fair Value      
Nonvested at the beginning of the period (in dollars per share) $ 17.37    
Granted (in dollars per share) 23.25    
Vested (in dollars per share) 17.30    
Forfeited (in dollars per share) 21.37    
Nonvested at the end of the period (in dollars per share) $ 19.97 $ 17.37  
Liability Awards      
Nonvested shares      
Nonvested at the beginning of the period (in shares) 492,000    
Granted (in shares) 261,000    
Vested (in shares) (259,000)    
Forfeited (in shares) (19,000)    
Nonvested at the end of the period (in shares) 475,000 492,000  
Weighted Average Grant-Date Fair Value      
Nonvested at the beginning of the period (in dollars per share) $ 18.50    
Granted (in dollars per share) 22.60    
Vested (in dollars per share) 17.09    
Forfeited (in dollars per share) 21.22    
Nonvested at the end of the period (in dollars per share) $ 21.37 $ 18.50  
Restricted stock units      
Nonvested shares      
Vested (in shares) (29,645)    
Weighted Average Grant-Date Fair Value      
The number of restricted stock units vested at the balance sheet date (in shares) 393,952    
Vested restricted stock units for which common stock shares were issued during the period 29,921    
Minimum | Performance Awards      
Nonvested shares      
Performance period 2 years    
Maximum | Performance Awards      
Nonvested shares      
Performance period 3 years