XML 65 R26.htm IDEA: XBRL DOCUMENT v2.4.0.8
Income Taxes - Additional Information (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Dec. 31, 2013
Income Tax Disclosure [Abstract]          
Income tax provision $ 1 $ 10 $ 11 $ 38  
Percentage of provision for income tax 35.40% 35.80% 35.70% 35.80%  
Federal statutory income tax rate     35.00%    
Unrecognized tax benefits $ 11   $ 11   $ 9