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BENEFIT PLANS (Tables) | 9 Months Ended
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Sep. 30, 2024
Retirement Benefits [Abstract] |
Schedule of Components of Net Periodic Benefit Cost | The following table sets forth the components of net periodic pension benefit cost:
| Three Months Ended September 30 | Nine Months Ended September 30
in millions | 2024 | 2023 | 2024 | 2023
Service cost | $ | 0.4 |  | $ | 0.6 |  | $ | 1.8 |  | $ | 1.9 |
Interest cost | 8.2 |  | 8.5 |  | 24.7 |  | 25.4 |
Expected return on plan assets | (7.0) |  | (6.9) |  | (21.1) |  | (20.7) |
Amortization of prior service cost | 0.2 |  | 0.4 |  | 0.7 |  | 1.1 |
Amortization of actuarial loss | 1.4 |  | 1.4 |  | 3.8 |  | 4.2 |
Net periodic pension benefit cost | $ | 3.2 |  | $ | 4.0 |  | $ | 9.9 |  | $ | 11.9 |
Pretax amortization from AOCI | $ | 1.6 |  | $ | 1.8 |  | $ | 4.5 |  | $ | 5.3 |
The following table sets forth the components of net periodic other postretirement benefit cost:
| Three Months Ended September 30 | Nine Months Ended September 30
in millions | 2024 | 2023 | 2024 | 2023
Service cost | $ | 0.4 |  | $ | 0.5 |  | $ | 1.6 |  | $ | 1.5 |
Interest cost | 0.6 |  | 0.5 |  | 1.7 |  | 1.5 |
Amortization of prior service cost | 0.3 |  | 0.4 |  | 1.1 |  | 1.1 |
Amortization of actuarial gain | (0.1) |  | (0.4) |  | (0.5) |  | (1.2) |
Net periodic postretirement benefit cost | $ | 1.2 |  | $ | 1.0 |  | $ | 3.9 |  | $ | 2.9 |
Pretax amortization from AOCI | $ | 0.2 |  | $ | 0.0 |  | $ | 0.6 |  | $ | (0.1) |

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- Definition Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 715 -SubTopic 20 -Subparagraph (h) -Name Accounting Standards Codification -Paragraph 1 -Section 50 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1 + Details
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