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Variable Interest Entities (Tables)
6 Months Ended
Jun. 30, 2013
Text Block [Abstract]  
Carrying Amounts and Maximum Exposure to Loss Related to Unconsolidated VIEs

 

 

 
  June 30, 2013  
(Dollars in millions)   Total Assets   Total Liabilities   Maximum Exposure
to Loss
 

LIHC investments

  $ 906   $ 377   $ 906  

Renewable energy investments

    497         497  

Private capital investments

    18         19  
               

Total unconsolidated VIEs

  $ 1,421   $ 377   $ 1,422