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v3.23.2

Pension and Postretirement Benefits | 6 Months Ended
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Jun. 30, 2023
Retirement Benefits [Abstract] |
Pension and Postretirement Benefits | Pension and Postretirement Benefits Components of the net periodic cost for pension and postretirement benefits for the three months ended June 30, 2023 and 2022 were as follows:
| U.S. Defined Benefit Plans |  | Non-U.S. Defined Benefit Plans |  | Postretirement Medical Benefits
(Amounts in millions) | 2023 |  | 2022 |  | 2023 |  | 2022 |  | 2023 |  | 2022
Service cost | $ | 5.7 |  |  | $ | 6.1 |  |  | $ | 1.2 |  |  | $ | 1.4 |  |  | $ | — |  |  | $ | — |
Interest cost | 5.0 |  |  | 3.2 |  |  | 3.1 |  |  | 1.6 |  |  | 0.2 |  |  | 0.1 |
Expected return on plan assets | (5.7) |  |  | (6.2) |  |  | (1.8) |  |  | (1.3) |  |  | — |  |  | — |
Amortization of unrecognized prior service cost and other costs | 0.1 |  |  | — |  |  | 0.1 |  |  | 0.2 |  |  | 0.1 |  |  | — |
Amortization of unrecognized net loss | — |  |  | 0.7 |  |  | 0.3 |  |  | 0.7 |  |  | — |  |  | 0.1 |
Net periodic cost recognized | $ | 5.1 |  |  | $ | 3.8 |  |  | $ | 2.9 |  |  | $ | 2.6 |  |  | $ | 0.3 |  |  | $ | 0.2 |
Components of the net periodic cost for pension and postretirement benefits for the six months ended June 30, 2023 and 2022 were as follows:
| U.S. Defined Benefit Plans |  | Non-U.S. Defined Benefit Plans |  | Postretirement Medical Benefits
(Amounts in millions) | 2023 |  | 2022 |  | 2023 |  | 2022 |  | 2023 |  | 2022
Service cost | $ | 10.7 |  |  | $ | 12.4 |  |  | $ | 2.3 |  |  | $ | 3.0 |  |  | $ | — |  |  | $ | — |
Interest cost | 10.2 |  |  | 6.6 |  |  | 6.0 |  |  | 3.3 |  |  | 0.4 |  |  | 0.2 |
Expected return on plan assets | (12.0) |  |  | (12.7) |  |  | (3.4) |  |  | (2.9) |  |  | — |  |  | — |
Amortization of unrecognized prior service cost and other costs | 0.1 |  |  | 0.1 |  |  | 0.2 |  |  | 0.3 |  |  | 0.1 |  |  | 0.1 |
Amortization of unrecognized net loss | — |  |  | 1.7 |  |  | 0.6 |  |  | 1.4 |  |  | — |  |  | 0.1 |
Net periodic cost recognized | $ | 9.0 |  |  | $ | 8.1 |  |  | $ | 5.7 |  |  | $ | 5.1 |  |  | $ | 0.5 |  |  | $ | 0.4 |
The components of net periodic cost for pension and postretirement benefits other than service costs are included in other income (expense), net in our condensed consolidated statements of income.

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