v2.4.0.8
Income Taxes (Textuals) (Details) (USD $)
 3 Months Ended 12 Months Ended
Mar. 31, 2011
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Intraperiod income tax [Line Items]          
Deferred Tax Assets, Operating Loss Carryforwards, Domestic   $ 7,500,000,000      
Federal statutory tax expense (benefit) rate   35.00% 35.00% (35.00%)  
Income Tax Disclosure (Textuals) [Abstract]          
One time tax benefit from consolidation 76,000,000        
Unrecognized Tax Benefits   68,000,000 92,000,000 74,000,000 88,000,000
Unrecognized Tax Benefits that Would Impact Effective Tax Rate   19,000,000      
Unrecognized Tax Benefits Resulting in Net Operating Loss Carryforward   49,000,000      
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued   13,000,000 24,000,000    
Cancellation of Debt Income Related to Stock Distribution     66,000,000    
Cancellation of Debt Income Related to Stock Distribution for State Income Tax Purposes     39,000,000    
Valuation allowance   2,246,000,000 2,222,000,000    
Valuation Allowance, Deferred Tax Asset, Change in Amount   24,000,000 (114,000,000) (50,000,000)  
Miscellaneous increase in state, Deferred Tax Assets   18,000,000      
Tax refund due to foreign dividend income treatment   10,000,000      
Tax refund plus accrued interest due to foreign dividend income treatment   13,000,000      
Accrued interest on foreign dividend refund   3,000,000      
Deferred Tax Assets, Operating Loss Carryforwards, State and Local   4,100,000,000      
Deferred Tax Assets, Operating Loss Carryforwards, Foreign   900,000,000      
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense   (11,000,000) 4,000,000 1,000,000  
Federal [Domain]
          
Income Tax Disclosure (Textuals) [Abstract]          
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost   25,000,000 16,000,000    
State and Local Jurisdiction [Member]
          
Income Tax Disclosure (Textuals) [Abstract]          
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost   $ 9,000,000 $ 7,000,000