15. PENSION AND POST-RETIREMENT PLANS The Company’s pension and post-retirement plans are described in Note 11 to the Consolidated Financial Statements included in Part II, Item 8 of the Company’s Annual Report on Form 10-K for the year ended December 31, 2025. Components of net periodic benefit cost and other amounts recognized in Other Comprehensive Income (Loss) for the qualified pension plans and the post-retirement benefit plans for the three and nine months ended September 30, 2026 and 2025 consisted of the following: | | | | | | | | | | | | | | | Pension Benefits | | Post-retirement Benefits | | | Three Months Ended September 30, | | Three Months Ended September 30, | (In millions) | | 2026 | | 2025 | | 2026 | | 2025 | Components of net periodic benefit cost (credit): | | | | | | | | | | | | | Service cost | | $ | 1.3 | | $ | 1.3 | | $ | — | | $ | — | Interest cost | | | 2.6 | | | 2.6 | | | — | | | 0.3 | Expected return on plan assets | | | (5.9) | | | (4.4) | | | — | | | — | Amortization of net actuarial loss (gain) | | | — | | | — | | | (1.0) | | | (0.2) | Amortization of prior service credit | | | — | | | — | | | (0.5) | | | (2.7) | Net periodic benefit credit | | $ | (2.0) | | $ | (0.5) | | $ | (1.5) | | $ | (2.6) |
| | | | | | | | | | | | | | | Pension Benefits | | Post-retirement Benefits | | | Nine Months Ended September 30, | | Nine Months Ended September 30, | (In millions) | | 2026 | | 2025 | | 2026 | | 2025 | Components of net periodic benefit cost (credit): | | | | | | | | | | | | | Service cost | | $ | 3.8 | | $ | 3.5 | | $ | 0.1 | | $ | 0.1 | Interest cost | | | 7.7 | | | 7.8 | | | 0.5 | | | 0.8 | Expected return on plan assets | | | (14.1) | | | (13.2) | | | — | | | — | Amortization of net actuarial loss (gain) | | | — | | | — | | | (1.3) | | | (0.5) | Amortization of prior service credit | | | — | | | — | | | (1.6) | | | (4.6) | Net periodic benefit credit | | $ | (2.6) | | $ | (1.9) | | $ | (2.3) | | $ | (4.2) |
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