XML 76 R68.htm IDEA: XBRL DOCUMENT  v2.3.0.11
Income Taxes (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2011
Jun. 30, 2010
Jun. 30, 2011
Jun. 30, 2010
Income Taxes        
Effective income tax rate 41.80% 32.60% 40.40% 35.00%
Income taxes paid, net     $ 71 $ 44