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Employee Benefit Plans | 3 Months Ended
--- | ---
Mar. 31, 2024
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Abstract] |
Employee Benefit Plans | 6. Employee Benefit Plans Components of net periodic pension benefit cost were as follows (in millions):
|  | Three Months Ended March 31, |
|  | 2024 |  |  | 2023 |
Components of net periodic benefit cost |  |  |  |  |  |
Service cost |  | $ | 1.6 |  |  | $ | 1.7 |
Interest cost |  |  | 4.2 |  |  |  | 4.1 |
Expected return on plan assets |  |  | (5.2 | ) |  |  | (4.8 | )
Amortization of prior service cost |  |  | 0.4 |  |  |  | 0.5 |
Amortization of net actuarial gain |  |  | (0.6 | ) |  |  | (0.6 | )
Expenses paid |  |  | 0.2 |  |  |  | 0.2 |
Net periodic benefit cost |  | $ | 0.6 |  |  | $ | 1.1 |
Components of net periodic other post-employment benefit cost were as follows (in millions):
|  | Three Months Ended March 31, |
|  | 2024 |  |  | 2023 |
Components of net periodic benefit cost |  |  |  |  |  |
Service cost |  | $ | 0.4 |  |  | $ | 0.4 |
Interest cost |  |  | 0.6 |  |  |  | 0.5 |
Amortization of prior service benefit |  |  | (0.3 | ) |  |  | (0.4 | )
Net periodic benefit cost |  | $ | 0.7 |  |  | $ | 0.5 |
Components of net periodic benefit cost other than “Service cost” and “Expenses paid” are included in “Miscellaneous, net” in the Condensed Consolidated Statements of Income.

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