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v3.21.1

Pension and Postretirement Benefits | 3 Months Ended
--- | ---
Mar. 31, 2021
Compensation And Retirement Disclosure [Abstract] |
Pension and Postretirement Benefits |
7. | Pension and Postretirement Benefits
The estimated components of the recorded net periodic benefit cost (credit) for pension and postretirement benefits are as follows:
|  | Pension |  |  | Postretirement Benefits |
|  | Three Months Ended March 31, |
|  | 2021 |  |  | 2020 |  |  | 2021 |  |  | 2020 |
|  | (Dollars in Millions) |
Service cost |  | $ | 11.6 |  |  | $ | 9.7 |  |  | $ | — |  |  | $ | — |
Interest cost |  |  | 9.0 |  |  |  | 9.2 |  |  |  | 0.1 |  |  |  | 0.1 |
Expected return on assets |  |  | (17.6 | ) |  |  | (14.6 | ) |  |  | — |  |  |  | — |
Amortization of: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Prior service cost (credit) |  |  | 0.2 |  |  |  | 0.2 |  |  |  | (0.2 | ) |  |  | (0.2 | )
Actuarial loss (gain) |  |  | 3.3 |  |  |  | 3.3 |  |  |  | (0.1 | ) |  |  | — |
Net periodic benefit cost (credit) |  | $ | 6.5 |  |  | $ | 7.8 |  |  | $ | (0.2 | ) |  | $ | (0.1 | )
The service cost component of net periodic benefit cost (credit) is included in Cost of revenues – products and services and Selling, general and administrative expenses. All other components are included in Other nonoperating (income) and expenses, net, in the consolidated statements of earnings and comprehensive earnings.

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