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Comprehensive income (Tables)
9 Months Ended
Sep. 30, 2024
Equity [Abstract]  
Components of Other Comprehensive Income (Loss) and Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) to Net Income
The following tables display the components of other comprehensive income (loss) and amounts reclassified from accumulated other comprehensive income (loss) to net income:
(Dollars in millions)Investment
Securities
Cash Flow HedgesDefined Benefit PlansOtherTotal
Amount
Before Tax
Income
Tax
Net
Balance — January 1, 2024$(251)$(203)$(155)$(7)$(616)$157 $(459)
Other comprehensive income (loss) before reclassifications:
Unrealized holding gains, net307 — — — 307 (78)229 
Unrealized losses on cash flow hedges— (26)— — (26)(19)
Other— — — (1)
Total other comprehensive income (loss) before reclassifications307 (26)— 284 (72)212 
Amounts reclassified from accumulated other comprehensive income (loss) that (increase) decrease net income:
Net losses realized in net income13 — — — 13 (4)
Net yield adjustment from cash flow hedges currently in effect— 288 — — 288 (a)(73)215 
Amortization of prior service credit— — (2)— (2)(b)— (2)
Amortization of actuarial gains— — (3)— (3)(b)(2)
Total other comprehensive income (loss)320 262 (5)580 (148)432 
Balance — September 30, 2024$69 $59 $(160)$(4)$(36)$$(27)
Balance — January 1, 2023$(444)$(336)$(273)$(13)$(1,066)$276 $(790)
Other comprehensive income (loss) before reclassifications:
Unrealized holding losses, net(2)— — — (2)(1)
Unrealized losses on cash flow hedges— (366)— — (366)91 (275)
Total other comprehensive income (loss) before reclassifications(2)(366)— — (368)92 (276)
Amounts reclassified from accumulated other comprehensive income (loss) that (increase) decrease net income:
Net yield adjustment from cash flow hedges currently in effect— 173 — — 173 (a)(44)129 
Amortization of prior service credit— — (1)— (1)(b)— (1)
Amortization of actuarial gains— — (4)— (4)(b)— (4)
Total other comprehensive income (loss)(2)(193)(5)— (200)48 (152)
Balance — September 30, 2023$(446)$(529)$(278)$(13)$(1,266)$324 $(942)
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(a)Included in "interest income" in the Consolidated Statement of Income.
(b)Included in "other costs of operations" in the Consolidated Statement of Income.
Accumulated Other Comprehensive Income (Loss), Net
Accumulated other comprehensive income (loss), net consisted of the following:
(Dollars in millions)
Investment Securities
Cash Flow HedgesDefined Benefit PlansOtherTotal
Balance — December 31, 2023$(187)$(151)$(115)$(6)$(459)
Net gain (loss) during period238 196 (4)432 
Balance — September 30, 2024$51 $45 $(119)$(4)$(27)