INCOME TAXES (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Income Taxes    
Income tax expense (benefit) $ 70 $ (33)
Continued operations pre-tax earnings 260 4
Unrecognized tax benefits 46  
Unrecognized tax benefits which, if recognized, would impact effective tax rate 44  
Unrecognized federal and state tax benefits and reserves for interest and penalties, which may decrease in the next 12 months 1  
Continuing operations    
Income Taxes    
Income tax expense (benefit) 70 $ (33)
Interest and penalties related to accrued liabilities for uncertain tax positions, recognized $ 3