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Pensions and Other Postretirement Benefits | 6 Months Ended
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Jun. 30, 2019
Retirement Benefits [Abstract] |
Pensions and Other Postretirement Benefits | Pensions and Other Postretirement Benefits
| Three Months Ended June 30, 2019 |  | Three Months Ended June 30, 2018
| Pension Benefits |  | Global OPEB Plans |  | Pension Benefits |  | Global OPEB Plans
| U.S. |  | Non-U.S. |  |  | U.S. |  | Non-U.S. |
Service cost | $ | 98 |  |  | $ | 29 |  |  | $ | 4 |  |  | $ | 82 |  |  | $ | 39 |  |  | $ | 5 |
Interest cost | 566 |  |  | 118 |  |  | 55 |  |  | 512 |  |  | 117 |  |  | 48 |
Expected return on plan assets | (871 | ) |  | (192 | ) |  | — |  |  | (972 | ) |  | (208 | ) |  | — |
Amortization of prior service cost (credit) | (1 | ) |  | 1 |  |  | (4 | ) |  | (1 | ) |  | 1 |  |  | (3 | )
Amortization of net actuarial losses | 3 |  |  | 30 |  |  | 7 |  |  | 3 |  |  | 37 |  |  | 13 |
Net periodic pension and OPEB (income) expense | $ | (205 | ) |  | $ | (14 | ) |  | $ | 62 |  |  | $ | (376 | ) |  | $ | (14 | ) |  | $ | 63 |
| Six Months Ended June 30, 2019 |  | Six Months Ended June 30, 2018
| Pension Benefits |  | Global OPEB Plans |  | Pension Benefits |  | Global OPEB Plans
| U.S. |  | Non-U.S. |  |  | U.S. |  | Non-U.S. |
Service cost | $ | 196 |  |  | $ | 64 |  |  | $ | 8 |  |  | $ | 165 |  |  | $ | 105 |  |  | $ | 10 |
Interest cost | 1,132 |  |  | 238 |  |  | 109 |  |  | 1,025 |  |  | 237 |  |  | 98 |
Expected return on plan assets | (1,739 | ) |  | (387 | ) |  | — |  |  | (1,945 | ) |  | (420 | ) |  | — |
Amortization of prior service cost (credit) | (2 | ) |  | 2 |  |  | (7 | ) |  | (2 | ) |  | 2 |  |  | (7 | )
Amortization of net actuarial losses | 6 |  |  | 59 |  |  | 15 |  |  | 5 |  |  | 74 |  |  | 26 |
Net periodic pension and OPEB (income) expense | $ | (407 | ) |  | $ | (24 | ) |  | $ | 125 |  |  | $ | (752 | ) |  | $ | (2 | ) |  | $ | 127 |
The non-service cost components of net periodic pension and other postretirement benefits (OPEB) income of $232 million and $420 million in the three months ended June 30, 2019 and 2018 and $462 million and $841 million in the six months ended June 30, 2019 and 2018 are presented in Interest income and other non-operating income, net.

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- References No definition available. + Details
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- Definition The entire disclosure for pension and other postretirement benefits. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -URI http://asc.fasb.org/topic&trid=2235017 + Details
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