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Benefit Plans - Weighted Average Assumptions for Pension Obligation (Details) | Dec. 31, 2021 | Dec. 31, 2020
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Defined Benefit Pension Plans | United States |  |
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation |  |
Discount rate | 2.90% | 2.50%
Defined Benefit Pension Plans | Foreign |  |
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation |  |
Discount rate |  | 1.20%
Rate of compensation increase |  | 1.75%
Other Postretirement Benefits Plans |  |
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation |  |
Discount rate | 2.90% | 2.60%

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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://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=123447040&loc=d3e1928-114920 + Details
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- Definition Weighted average rate increase of compensation, used to determine benefit obligation of defined benefit plan. Plan includes, but is not limited to, pay-related 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)(2) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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