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Mortgage Banking Activity (Tables)
 6 Months Ended
Jun. 30, 2024
Mortgage Banking [Abstract]  
Schedule of Residential Mortgage Loans Held For Sale
The following table summarizes activity related to residential mortgage loans held for sale as of and for the six months ended June 30, 2024 and the year ended December 31, 2023.
MORTGAGE LOAN ACTIVITY
(Dollars in millions)June 30, 2024December 31, 2023
Balance at beginning of period$62 $44 
Originations and purchases485 692 
Sales, net of gains(436)(674)
Balance at end of period$111 $62 
Schedule of Mortgage Servicing Rights Mortgage servicing rights had the following carrying values as of the dates indicated in the table below.
MORTGAGE SERVICING RIGHTS
June 30, 2024December 31, 2023
(Dollars in millions)Gross Carrying AmountAccumulated AmortizationNet Carrying AmountGross Carrying AmountAccumulated AmortizationNet Carrying Amount
Mortgage servicing rights$28 $(8)$20 $25 $(7)$18