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Other income and other expense
 12 Months Ended
Dec. 31, 2024
Other Income and Expenses [Abstract]  
Other income and other expense Other income and other expense
The following items, which exceeded 1% of total interest income and other income in the respective period, were included in either Other revenues from operations or Other costs of operations in the Consolidated Statement of Income:
Year Ended December 31,
(Dollars in millions)202420232022
Other revenues from operations:
Credit-related fee income$162 $151 $130 
Gain on divestiture of CIT225  
Gain on divestiture of MTIA136 
Other costs of operations:
Amortization of capitalized mortgage servicing rights139 131 97 
Charitable contributions178