Registration of securities issued in business combination transactions

INCOME TAXES (Details)

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INCOME TAXES (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 12 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
INCOME TAXES          
Change in valuation allowance     $ (87) $ 23 $ 45
Income tax (expense) benefit (37) 18 (137) (179) (113)
Effective tax rate (as a percent) 35.00%        
Net increase in unrecognized tax benefits with a corresponding income tax expense 3 1      
Luxembourg
         
INCOME TAXES          
Change in valuation allowance $ 4 $ 1