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Benefit Plans - Weighted-Average Assumptions to Determine Net Periodic Postretirement Health Care Cost (Details) - Postretirement Health Care Plan	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Discount rate	3.41%	4.37%	3.66%
Health care cost trend rate	6.00%	6.25%	6.25%
Non-U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Discount rate	3.86%	4.40%	4.24%
Health care cost trend rate	5.42%	5.44%	5.56%

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- Definition

Defined benefit plan assumptions used calculating net periodic benefit cost health care cost trend rate

+ 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 net periodic benefit cost of defined benefit plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (k)(1)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

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