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Comprehensive income (Tables) | 3 Months Ended
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Mar. 31, 2025
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 Hedges |  | Defined Benefit Plans |  | Other |  | Total Amount Before Tax |  | Income Tax |  | Net
Balance — January 1, 2025 | $ | (205) |  |  | $ | (135) |  |  | $ | 131 |  |  | $ | (10) |  |  | $ | (219) |  |  | $ | 55 |  |  | $ | (164) |
Other comprehensive income (loss) before reclassifications: |  |  |  |  |  |  |  |  |  |  |  |  |
Unrealized holding gains, net | 197 |  |  | — |  |  | — |  |  | — |  |  | 197 |  |  | (50) |  |  | 147 |
Unrealized gains on cash flow hedges | — |  |  | 91 |  |  | — |  |  | — |  |  | 91 |  |  | (23) |  |  | 68 |
Other | — |  |  | — |  |  | — |  |  | 1 |  |  | 1 |  |  | — |  |  | 1 |
Total other comprehensive income (loss) before reclassifications | 197 |  |  | 91 |  |  | — |  |  | 1 |  |  | 289 |  |  | (73) |  |  | 216 |
Amounts reclassified from accumulated other comprehensive income that (increase) decrease net income: |  |  |  |  |  |  |  |  |  |  |  |  |
Net yield adjustment from cash flow hedges currently in effect | — |  |  | 53 |  |  | — |  |  | — |  |  | 53 |  | (a) | (13) |  |  | 40 |
Amortization of actuarial gains | — |  |  | — |  |  | (2) |  |  | — |  |  | (2) |  | (b) | — |  |  | (2) |
Total other comprehensive income (loss) | 197 |  |  | 144 |  |  | (2) |  |  | 1 |  |  | 340 |  |  | (86) |  |  | 254 |
Balance — March 31, 2025 | $ | (8) |  |  | $ | 9 |  |  | $ | 129 |  |  | $ | (9) |  |  | $ | 121 |  |  | $ | (31) |  |  | $ | 90 |
Balance — January 1, 2024 | $ | (251) |  |  | $ | (203) |  |  | $ | (155) |  |  | $ | (7) |  |  | $ | (616) |  |  | $ | 157 |  |  | $ | (459) |
Other comprehensive income (loss) before reclassifications: |  |  |  |  |  |  |  |  |  |  |  |  |
Unrealized holding losses, net | (13) |  |  | — |  |  | — |  |  | — |  |  | (13) |  |  | 2 |  |  | (11) |
Unrealized losses on cash flow hedges | — |  |  | (243) |  |  | — |  |  | — |  |  | (243) |  |  | 60 |  |  | (183) |
Other | — |  |  | — |  |  | — |  |  | (2) |  |  | (2) |  |  | — |  |  | (2) |
Total other comprehensive income (loss) before reclassifications | (13) |  |  | (243) |  |  | — |  |  | (2) |  |  | (258) |  |  | 62 |  |  | (196) |
Amounts reclassified from accumulated other comprehensive income that (increase) decrease net income: |  |  |  |  |  |  |  |  |  |  |  |  |
Losses realized in net income | 1 |  |  | — |  |  | — |  |  | — |  |  | 1 |  |  | — |  |  | 1 |
Net yield adjustment from cash flow hedges currently in effect | — |  |  | 87 |  |  | — |  |  | — |  |  | 87 |  | (a) | (21) |  |  | 66 |
Amortization of actuarial gains | — |  |  | — |  |  | (1) |  |  | — |  |  | (1) |  | (b) | — |  |  | (1) |
Total other comprehensive income (loss) | (12) |  |  | (156) |  |  | (1) |  |  | (2) |  |  | (171) |  |  | 41 |  |  | (130) |
Balance — March 31, 2024 | $ | (263) |  |  | $ | (359) |  |  | $ | (156) |  |  | $ | (9) |  |  | $ | (787) |  |  | $ | 198 |  |  | $ | (589) |
__________________________________________________________________________________ (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 Hedges |  | Defined Benefit Plans |  | Other |  | Total
Balance — December 31, 2024 | $ | (153) |  |  | $ | (101) |  |  | $ | 98 |  |  | $ | (8) |  |  | $ | (164) |
Net gain (loss) during period | 147 |  |  | 108 |  |  | (2) |  |  | 1 |  |  | 254 |
Balance — March 31, 2025 | $ | (6) |  |  | $ | 7 |  |  | $ | 96 |  |  | $ | (7) |  |  | $ | 90 |

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