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Accounting for Transfers and Servicing of Financial Assets and Variable Interest Entities (Tables)
3 Months Ended
Mar. 31, 2022
Accounting Policies [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)   March 31,
2022
     December 31,
2021
 
Investment carrying amount
  $ 5,106      $ 4,484  
Unfunded capital and other commitments
    2,331        1,890  
Maximum exposure to loss
    9,764        9,899