Non-pension Post-retirement Benefits (Assumptions Used) (Details) - Other Post-retirement Benefits Plan	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017
U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Discount rate used to determine net postretirement benefit cost	3.60%	4.05%
Discount rate used to determine accumulated postretirement benefit obligation	4.27%	3.60%
Healthcare cost trend rate assumed for next year	6.25%	6.50%
Ultimate healthcare trend rate	5.00%	5.00%
Year that ultimate trend rate is reached	2024	2024
Non-U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Discount rate used to determine net postretirement benefit cost	3.26%	3.48%
Discount rate used to determine accumulated postretirement benefit obligation	3.52%	3.26%
Healthcare cost trend rate assumed for next year	6.25%	6.50%
Ultimate healthcare trend rate	5.00%	5.00%
Year that ultimate trend rate is reached	2024	2024

Weighted average rate for present value of future retirement benefits cash flows, used to determine benefit obligation of defined benefit plan.

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

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Weighted average rate for present value of future retirement benefits cash flows, used to determine net periodic benefit cost of defined benefit plan.

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Assumed rate, for next fiscal year, based on annual change in cost of health care cost benefits used to measure expected cost of benefits covered by defined benefit postretirement plan. Factors include, but are not limited to, estimate of health care inflation, change in health care utilization or delivery pattern, technological advances, and change in health status of participant. Excludes factors for change in composition of plan population by age and dependency status.

+ 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 (l)
-URI http://asc.fasb.org/extlink&oid=108410482&loc=d3e1928-114920

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- Definition

Ultimate trend rate for health care cost for defined benefit postretirement 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 (l)
-URI http://asc.fasb.org/extlink&oid=108410482&loc=d3e1928-114920

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Year ultimate health care cost trend rate is expected to be reached, in CCYY format.

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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 (l)
-URI http://asc.fasb.org/extlink&oid=108410482&loc=d3e1928-114920

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