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Accumulated Other Comprehensive Loss (Tables) | 6 Months Ended
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Jun. 30, 2025
Other Comprehensive Income (Loss), Tax [Abstract] |
Components Of Accumulated Other Comprehensive Loss | The following tables display the components of Accumulated Other Comprehensive Loss, net of tax:
(in millions) | Gains and Losses on Securities(1) |  | Gains and Losses on Cash Flow Hedges(1) |  | Pension and OPEB Items(1) |  | Accumulated Other Comprehensive Loss(1)
Balance as of April 1, 2025 | $ | (3.2) |  |  | $ | (13.3) |  |  | $ | (12.7) |  |  | $ | (29.2) |
Other comprehensive income before reclassifications | 1.0 |  |  | — |  |  | (0.1) |  |  | 0.9 |
Amounts reclassified from accumulated other comprehensive loss | — |  |  | (0.1) |  |  | 0.2 |  |  | 0.1 |
Net current-period other comprehensive income (loss) | 1.0 |  |  | (0.1) |  |  | 0.1 |  |  | 1.0 |
Balance as of June 30, 2025 | $ | (2.2) |  |  | $ | (13.4) |  |  | $ | (12.6) |  |  | $ | (28.2) |
(1)All amounts are net of tax. Amounts in parentheses indicate debits. |  |  |  |  |  |  |
(in millions) | Gains and Losses on Securities(1) |  | Gains and Losses on Cash Flow Hedges(1) |  | Pension and OPEB Items(1) |  | Accumulated Other Comprehensive Loss(1)
Balance as of January 1, 2025 | $ | (4.0) |  |  | $ | (13.2) |  |  | $ | (13.2) |  |  | $ | (30.4) |
Other comprehensive income (loss) before reclassifications | 1.8 |  |  | — |  |  | 0.2 |  |  | 2.0 |
Amounts reclassified from accumulated other comprehensive loss | — |  |  | (0.2) |  |  | 0.4 |  |  | 0.2 |
Net current-period other comprehensive income (loss) | 1.8 |  |  | (0.2) |  |  | 0.6 |  |  | 2.2 |
Balance as of June 30, 2025 | $ | (2.2) |  |  | $ | (13.4) |  |  | $ | (12.6) |  |  | $ | (28.2) |
(1)All amounts are net of tax. Amounts in parentheses indicate debits.
(in millions) | Gains and Losses on Securities(1) |  | Gains and Losses on Cash Flow Hedges(1) |  | Pension and OPEB Items(1) |  | Accumulated Other Comprehensive Loss(1)
Balance as of April 1, 2024 | $ | (7.6) |  |  | $ | (12.9) |  |  | $ | (13.3) |  |  | $ | (33.8) |
Other comprehensive loss before reclassifications | (0.1) |  |  | (0.2) |  |  | — |  |  | (0.3) |
Amounts reclassified from accumulated other comprehensive loss | 0.1 |  |  | 0.1 |  |  | 0.3 |  |  | 0.5 |
Net current-period other comprehensive income (loss) | — |  |  | (0.1) |  |  | 0.3 |  |  | 0.2 |
Balance as of June 30, 2024 | $ | (7.6) |  |  | $ | (13.0) |  |  | $ | (13.0) |  |  | $ | (33.6) |
(1)All amounts are net of tax. Amounts in parentheses indicate debits. |  |  |  |  |  |  |
(in millions) | Gains and Losses on Securities(1) |  | Gains and Losses on Cash Flow Hedges(1) |  | Pension and OPEB Items(1) |  | Accumulated Other Comprehensive Loss(1)
Balance as of January 1, 2024 | $ | (7.3) |  |  | $ | (12.8) |  |  | $ | (13.5) |  |  | $ | (33.6) |
Other comprehensive income (loss) before reclassifications | (0.7) |  |  | (0.4) |  |  | — |  |  | (1.1) |
Amounts reclassified from accumulated other comprehensive loss | 0.4 |  |  | 0.2 |  |  | 0.5 |  |  | 1.1 |
Net current-period other comprehensive income (loss) | (0.3) |  |  | (0.2) |  |  | 0.5 |  |  | — |
Balance as of June 30, 2024 | $ | (7.6) |  |  | $ | (13.0) |  |  | $ | (13.0) |  |  | $ | (33.6) |
(1)All amounts are net of tax. Amounts in parentheses indicate debits.

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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -Publisher FASB -URI https://asc.fasb.org/1943274/2147482790/220-10-45-14A Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 830 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481674/830-30-50-1 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 830 -SubTopic 30 -Name Accounting Standards Codification -Section 45 -Paragraph 20 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481694/830-30-45-20 + Details
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