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ACCUMULATED OTHER COMPREHENSIVE (LOSS) INCOME (Tables)
3 Months Ended
Mar. 31, 2025
Equity [Abstract]  
Schedule of Accumulated Other Comprehensive (Loss) Income
The following table details the components of AOCI:

Components of Accumulated Other Comprehensive Loss
dollars in millionsMarch 31, 2025December 31, 2024
PretaxIncome
Taxes
Net of Income TaxesPretaxIncome
Taxes
Net of Income Taxes
Unrealized loss on securities available for sale$(440)$95 $(345)$(762)$178 $(584)
Unrealized loss on securities available for sale transferred to held to maturity(6)(4)(6)(4)
Defined benefit pension items182 (47)135 182 (47)135 
Unrealized gain on cash flow hedge derivatives20 (5)15 11 (3)
Total accumulated other comprehensive loss$(244)$45 $(199)$(575)$130 $(445)
The following table details the changes in the components of AOCI, net of income taxes:

Changes in Accumulated Other Comprehensive (Loss) Income by Component
dollars in millionsUnrealized loss on securities available for saleUnrealized loss on securities available for sale transferred to held to maturityDefined benefit pension itemsUnrealized gain on cash flow hedge derivativesTotal accumulated other comprehensive loss
Balance as of December 31, 2024$(584)$(4)$135 $$(445)
AOCI activity before reclassifications239 — — 10 249 
Amounts reclassified from AOCI to earnings— — — (3)(3)
Other comprehensive income for the period239 — — 246 
Balance as of March 31, 2025$(345)$(4)$135 $15 $(199)
Balance as of December 31, 2023$(577)$(5)$91 $— $(491)
Other comprehensive loss for the period(91)— — — (91)
Balance as of March 31, 2024$(668)$(5)$91 $— $(582)
The following table presents the pretax and after tax components of other comprehensive income:
Other Comprehensive Income (Loss) by Component

dollars in millionsThree Months Ended March 31,
20252024
PretaxIncome
Taxes
Net of Income TaxesPretaxIncome
Taxes
Net of Income TaxesIncome Statement Line Items
Unrealized loss on securities available for sale:
Other comprehensive income (loss) on securities available for sale$322 $(83)$239 $(124)$33 $(91)
Unrealized gain on cash flow hedge derivatives:
AOCI activity before reclassifications$12 $(2)$10 $— $— $— 
Amounts reclassified from AOCI to earnings(3)— (3)— — — Interest and fees on loans
Other comprehensive income on cash flow hedge derivatives$$(2)$$— $— $— 
Total other comprehensive income (loss)$331 $(85)$246 $(124)$33 $(91)