v2.3.0.15
Income Taxes (Details) (USD $)
3 Months Ended9 Months Ended12 Months Ended
Sep. 30, 2011
Sep. 30, 2010
Sep. 30, 2011
Sep. 30, 2010
Dec. 31, 2010
Income tax expense (benefit) [Abstract]     
Income tax expense (benefit)$ 20,000,000$ 21,000,000$ (45,000,000)$ 38,000,000 
Imputed tax rate10.00%10.00%20.00%61.00% 
Intraperiod tax allocation expense (benefit)36,000,00044,000,00020,000,00027,000,00013,000,000
Intraperiod Tax Allocation [Abstract]     
Intraperiod tax allocation expense (benefit) (2,000,000) 6,000,000 
Intraperiod tax allocation expense (benefit), included in OCI(34,000,000)(4,000,000)(18,000,000)5,000,000 
Income Taxes (Textuals) [Abstract]     
One-time federal deferred income tax benefit  76,000,000  
Unrecognized tax benefits87,000,000 87,000,000  
Amount of unrecognized tax benefits that could impact the annual effective tax rate if recognized40,000,000 40,000,000  
Deferred tax assets47,000,000 47,000,000  
Unrecognized accrued Interest and penalties related to income tax matters21,000,000 21,000,000  
Increase / decrease in unrecognized tax benefits that could occur in 12 months - lower bound0 0  
Increase / decrease in unrecognized tax benefits that could occur in 12 months - upper bound14,000,000 14,000,000  
Cancellation of debt income related to Calgen 3rd Distribution  51,000,000  
NOLs7,400,000,000 7,400,000,000  
Portion of NOLs no longer subject to annual Section 382 limitations4,900,000,000 4,900,000,000  
Portion of NOLs subject to annual Section 382 limitations2,500,000,000 2,500,000,000  
Percentage decline of Market Capitalization required for our Board to impose certain common stock transfer restrictions35.00% 35.00%  
Emergence Date Market Capitalization$ 8,600,000,000 $ 8,600,000,000  
Percentage point shift in ownership required for our Board to impose certain common stock transfer restrictions25.00% 25.00%  
Holders with ownership that could be affected by transfer restrictions5.00% 5.00%