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Postretirement benefit plans (Tables) | 9 Months Ended
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Sep. 30, 2019
Retirement Benefits [Abstract] |
Expense Related to Defined Benefit and Retiree Health Care Benefit Plans | Expense related to defined benefit and retiree health care benefit plans is as follows:
| U.S. Defined Benefit |  |  |  | U.S. Retiree Health Care |  |  |  | Non-U.S. Defined Benefit |  |
For Three Months Ended September 30, | 2019 |  | 2018 |  | 2019 |  | 2018 |  | 2019 |  | 2018
Service cost | $ | 4 |  |  | $ | 5 |  |  | $ | 1 |  |  | $ | 1 |  |  | $ | 7 |  |  | $ | 8 |
Interest cost | 9 |  |  | 9 |  |  | 4 |  |  | 4 |  |  | 11 |  |  | 11 |
Expected return on plan assets | (10) |  |  | (11) |  |  | (4) |  |  | (4) |  |  | (20) |  |  | (16) |
Recognized net actuarial loss | 3 |  |  | 4 |  |  | — |  |  | 1 |  |  | 6 |  |  | 5 |
Amortization of prior service cost (credit) | — |  |  | — |  |  | (1) |  |  | (1) |  |  | 1 |  |  | — |
Net periodic benefit costs | 6 |  |  | 7 |  |  | — |  |  | 1 |  |  | 5 |  |  | 8 |
Settlement losses | 3 |  |  | 9 |  |  | — |  |  | — |  |  | — |  |  | 1 |
Total, including other postretirement losses | $ | 9 |  |  | $ | 16 |  |  | $ | — |  |  | $ | 1 |  |  | $ | 5 |  |  | $ | 9 |
| U.S. Defined Benefit |  |  |  | U.S. Retiree Health Care |  |  |  | Non-U.S. Defined Benefit |  |
For Nine Months Ended September 30, | 2019 |  | 2018 |  | 2019 |  | 2018 |  | 2019 |  | 2018
Service cost | $ | 13 |  |  | $ | 15 |  |  | $ | 2 |  |  | $ | 3 |  |  | $ | 23 |  |  | $ | 26 |
Interest cost | 28 |  |  | 27 |  |  | 11 |  |  | 11 |  |  | 33 |  |  | 34 |
Expected return on plan assets | (31) |  |  | (32) |  |  | (11) |  |  | (11) |  |  | (64) |  |  | (50) |
Recognized net actuarial loss | 8 |  |  | 12 |  |  | — |  |  | 2 |  |  | 21 |  |  | 16 |
Amortization of prior service cost (credit) | — |  |  | — |  |  | (1) |  |  | (2) |  |  | 1 |  |  | (1) |
Net periodic benefit costs | 18 |  |  | 22 |  |  | 1 |  |  | 3 |  |  | 14 |  |  | 25 |
Settlement losses | 9 |  |  | 11 |  |  | — |  |  | — |  |  | 2 |  |  | 2 |
Total, including other postretirement losses | $ | 27 |  |  | $ | 33 |  |  | $ | 1 |  |  | $ | 3 |  |  | $ | 16 |  |  | $ | 27 |

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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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