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Retirement Plans and Other Retiree Benefits (Tables) | 6 Months Ended
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Jun. 30, 2019
Retirement Benefits [Abstract] |
Components Of Net Periodic Benefit Cost | Components of Net periodic benefit cost for the three and six months ended June 30, 2019 and 2018 were as follows:
| Pension Benefits |  | Other Retiree Benefits
| United States |  | International |  |  |  |
| Three Months Ended June 30,
| 2019 |  | 2018 |  | 2019 |  | 2018 |  | 2019 |  | 2018
Service cost | $ | — |  |  | $ | 1 |  |  | $ | 3 |  |  | $ | 3 |  |  | $ | 3 |  |  | $ | 4 |
Interest cost | 23 |  |  | 22 |  |  | 5 |  |  | 5 |  |  | 9 |  |  | 9 |
Expected return on plan assets | (24 | ) |  | (29 | ) |  | (4 | ) |  | (5 | ) |  | — |  |  | — |
Amortization of actuarial loss (gain) | 12 |  |  | 11 |  |  | 3 |  |  | 2 |  |  | 3 |  |  | 5 |
Net periodic benefit cost | $ | 11 |  |  | $ | 5 |  |  | $ | 7 |  |  | $ | 5 |  |  | $ | 15 |  |  | $ | 18 |
| Pension Benefits |  | Other Retiree Benefits
| United States |  | International |  |  |  |
| Six Months Ended June 30,
| 2019 |  | 2018 |  | 2019 |  | 2018 |  | 2019 |  | 2018
Service cost | $ | — |  |  | $ | 1 |  |  | $ | 7 |  |  | $ | 7 |  |  | $ | 7 |  |  | $ | 8 |
Interest cost | 46 |  |  | 43 |  |  | 10 |  |  | 11 |  |  | 20 |  |  | 19 |
Expected return on plan assets | (49 | ) |  | (58 | ) |  | (9 | ) |  | (11 | ) |  | (1 | ) |  | — |
Amortization of actuarial loss (gain) | 25 |  |  | 23 |  |  | 5 |  |  | 4 |  |  | 5 |  |  | 9 |
Net periodic benefit cost | $ | 22 |  |  | $ | 9 |  |  | $ | 13 |  |  | $ | 11 |  |  | $ | 31 |  |  | $ | 36 |

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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 -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 + Details
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