XML 76 R49.htm IDEA: XBRL DOCUMENT v2.4.0.8
Income Taxes (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Income Tax Disclosure [Line Items]        
Income tax expense (benefit) $ 29 $ 23 $ 33 $ 25
Income Tax Adjustments, Settlements, and Unusual Provisions       $ 16