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Benefit Plans - Weighted Average Interest Crediting Rating by Geographic Location (Details) - Pension benefits | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
United States |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] |  |  |
Weighted-average interest crediting rating used to determine net periodic benefit cost | 3.30% | 3.30% | 3.30%
International plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] |  |  |
Weighted-average interest crediting rating used to determine net periodic benefit cost | 0.52% | 0.85% | 0.41%

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- Definition Weighted-average interest crediting rate used to determine net periodic benefit cost of defined benefit plan. Plan includes, but is not limited to, cash balance and other defined benefit plans with promised interest crediting rate. + 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)(4) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 + Details
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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 No definition available. + Details
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