v2.4.0.8
Income Taxes (Income Tax Expense (Benefit)) (Details) (USD $)
3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Income Tax Contingency [Line Items]        
Income tax (expense) benefit $ (9,000,000) $ (110,000,000) $ (5,000,000) $ (12,000,000)
Effective Income Tax Rate, Continuing Operations 1.00% 26.00% 1.00% 10.00%
Unrecognized Tax Benefits 66,000,000   66,000,000  
Unrecognized Tax Benefits that Would Impact Effective Tax Rate 16,000,000   16,000,000  
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued 13,000,000   13,000,000  
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Estimated Range of Change, Lower Bound 0   0  
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Estimated Range of Change, Upper Bound 11,000,000   11,000,000  
Unrecognized Tax Benefit Related to Deferred Tax Asset $ 50,000,000   $ 50,000,000