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Accounting for Transfers and Servicing of Financial Assets and Variable Interest Entities (Tables)
6 Months Ended
Jun. 30, 2014
Transfers And Servicing [Abstract]  
Summary of Investments in Community Development and Tax-advantaged VIEs

The following table provides a summary of investments in community development and tax-advantaged VIEs that the Company has not consolidated:

 

(Dollars in Millions)   June 30, 2014      December 31, 2013  

Investment carrying amount

  $ 4,291       $ 4,178   

Unfunded capital and other commitments

    1,824         1,661   

Maximum exposure to loss

    7,663         7,390