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v3.25.3

Pensions and Other Postretirement Benefits | 9 Months Ended
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Sep. 30, 2025
Retirement Benefits [Abstract] |
Pensions and Other Postretirement Benefits | Pensions and Other Postretirement Benefits The following table summarizes the components of net annual benefit cost (income):
(in Millions) | Three Months Ended September 30, |  | Nine Months Ended September 30,
Pensions |  | Other Benefits |  | Pensions |  | Other Benefits
2025 |  | 2024 |  | 2025 |  | 2024 |  | 2025 |  | 2024 |  | 2025 |  | 2024
Service cost | $ | 0.3 |  |  | $ | 0.1 |  |  | $ | — |  |  | $ | — |  |  | $ | 1.0 |  |  | $ | 1.6 |  |  | $ | — |  |  | $ | — |
Interest cost | 11.9 |  |  | 12.0 |  |  | 0.1 |  |  | 0.1 |  |  | 35.8 |  |  | 35.9 |  |  | 0.3 |  |  | 0.3 |
Expected return on plan assets | (11.9) |  |  | (11.1) |  |  | — |  |  | — |  |  | (36.0) |  |  | (33.5) |  |  | — |  |  | — |
Amortization of net actuarial and other (gain) loss | 3.2 |  |  | 3.6 |  |  | (0.3) |  |  | (0.3) |  |  | 10.1 |  |  | 10.6 |  |  | (0.8) |  |  | (0.7) |
Recognized (gain) loss due to curtailments, settlements, and other | 0.1 |  |  | 0.1 |  |  | — |  |  | — |  |  | 0.3 |  |  | 0.3 |  |  | — |  |  | — |
Net periodic benefit cost (income) | $ | 3.6 |  |  | $ | 4.7 |  |  | $ | (0.2) |  |  | $ | (0.2) |  |  | $ | 11.2 |  |  | $ | 14.9 |  |  | $ | (0.5) |  |  | $ | (0.4) |

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