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Pension Benefit Plans (Tables) | 6 Months Ended
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Jun. 30, 2023
Pension Benefit Plans. |
Defined Benefit Plans and Other Postretirement Benefit Plans |
Components of net periodic pension cost | The components of the net periodic pension cost for the three months ended June 30, 2023 and 2022 are as follows:
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | U.S. | ​ | Non-U.S. |
​ | ​ | Three months ended June 30, | ​ | Three months ended June 30, | ​
​ |  | 2023 |  | 2022 |  | 2023 |  | 2022 |
Service cost | ​ | $ | 2 | ​ | $ | 3 | ​ | $ | 2 | ​ | $ | 2 | ​
Interest cost | ​ |  | 11 | ​ |  | 8 | ​ |  | 9 | ​ |  | 6 | ​
Expected asset return | ​ | ​ | (14) | ​ | ​ | (15) | ​ | ​ | (7) | ​ | ​ | (8) | ​
Amortization of actuarial loss | ​ | ​ | 2 | ​ | ​ | 10 | ​ | ​ | 2 | ​ | ​ | 2 | ​
Net periodic pension cost | ​ | $ | 1 | ​ | $ | 6 | ​ | $ | 6 | ​ | $ | 2 | ​
​ The components of the net periodic pension cost for the six months ended June 30, 2023 and 2022 are as follows:
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | U.S. | ​ | Non-U.S. |
​ | ​ | Six months ended June 30, | ​ | Six months ended June 30, | ​
​ |  | 2023 |  | 2022 |  | 2023 |  | 2022 |
Service cost | ​ | $ | 3 | ​ | $ | 6 | ​ | $ | 4 | ​ | $ | 5 | ​
Interest cost | ​ |  | 23 | ​ |  | 17 | ​ |  | 18 | ​ |  | 11 | ​
Expected asset return | ​ | ​ | (28) | ​ | ​ | (30) | ​ | ​ | (14) | ​ | ​ | (17) | ​
Amortization of actuarial loss | ​ | ​ | 4 | ​ | ​ | 20 | ​ | ​ | 4 | ​ | ​ | 4 | ​
Net periodic pension cost | ​ | $ | 2 | ​ | $ | 13 | ​ | $ | 12 | ​ | $ | 3 | ​

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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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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