v3.3.0.814
Income Taxes (Income Tax Expense (Benefit)) (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Income Tax Contingency [Line Items]        
Income tax (expense) benefit $ (28) $ (9) $ (32) $ (5)
Effective Income Tax Rate, Continuing Operations 9.00% 1.00% 10.00% 1.00%
Income Tax Uncertainties [Abstract]        
Unrecognized Tax Benefits $ 53   $ 53  
Unrecognized Tax Benefits that Would Impact Effective Tax Rate 12   12  
Unrecognized Tax Benefit Related to Deferred Tax Asset 41   41  
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued $ 11   $ 11