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Pensions - Summary of Weighted-Average Assumptions Used in Determining Benefit Obligations (Details) | Dec. 31, 2018 | Dec. 31, 2017
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U.S. Benefit Plan |  |
Schedule of Net Periodic Benefit Costs Weighted Average Assumptions [Line Items] |  |
Discount rate | 4.40% | 3.70%
Non-U.S. Benefit Plan |  |
Schedule of Net Periodic Benefit Costs Weighted Average Assumptions [Line Items] |  |
Discount rate | 2.80% | 2.50%

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- Definition Schedule of Net Periodic Benefit Costs Weighted Average Assumptions [Line Items] + References No definition available. + Details
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- Definition Weighted average rate for present value of future retirement benefits cash flows, used to determine benefit obligation of defined benefit plan. + 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 (k)(1) -URI http://asc.fasb.org/extlink&oid=108410482&loc=d3e1928-114920 + Details
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