XML 182 R117.htm IDEA: XBRL DOCUMENT v2.4.0.6
Note 18: Income Taxes (Detail) - Reconciliation of Unrecognized Tax Benefits (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Balance $ 76 $ 245 $ 256
Tax positions related to the current year:      
Additions 4 12 1
Tax positions related to prior years:      
Additions 3 2  
Reductions (17) (183) (11)
Settlements with taxing authorities (3)    
Lapses in statutes of limitations (6)   (1)
Balance $ 57 $ 76 $ 245