XML 151 R88.htm IDEA: XBRL DOCUMENT v2.4.0.6
Long-Term Debt - Total Long-term Debt Outstanding Maturities (Detail) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2012
Dec. 31, 2011
Debt Instrument [Line Items]    
2013 $ 630  
2014 165  
2015 144  
2016 134  
2017 58  
Thereafter 170  
Total $ 1,301 $ 1,159