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v3.21.2

Defined Benefit Pension Plans | 9 Months Ended
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Sep. 30, 2021
Retirement Benefits [Abstract] |
Compensation and Employee Benefit Plans | DEFINED BENEFIT PENSION PLANSThe following table summarizes our net periodic pension cost for our defined benefit pension and postretirement plans during the three and nine months ended September 30, 2021, and 2020:
| Three Months Ended September 30, |  | Nine Months Ended September 30,
| 2021 |  | 2020 |  | 2021 |  | 2020
Service cost | $ | — |  |  | $ | — |  |  | $ | 1 |  |  | $ | 1 |
Other components of net periodic pension cost 1: |  |  |  |  |  |  |
Interest cost | 2 |  |  | 2 |  |  | 5 |  |  | 7 |
Expected return on plan assets | (3) |  |  | (4) |  |  | (10) |  |  | (11) |
Amortization of prior service cost | — |  |  | 1 |  |  | — |  |  | 1 |
Amortization of net loss | 1 |  |  | 1 |  |  | 4 |  |  | 4 |
Net periodic pension cost | $ | 1 |  |  | $ | — |  |  | $ | 2 |  |  | $ | 2 |
1Other components of net periodic pension cost are included in Other non-operating items on our Condensed Consolidated Statements of Income.

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