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Pension Plans and Other Postretirement Benefit Plans - Investment Allocation Percentages By Asset Classes (Details) | Dec. 31, 2023 | Dec. 31, 2022
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Equity Securities |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Target investment allocation | 55.00% | 55.00%
Debt Securities |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Target investment allocation | 40.00% | 40.00%
Real Estate [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Target investment allocation | 5.00% | 5.00%

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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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- Definition Percentage of target investment allocation to total plan assets. Includes, but is not limited to, percentage on weighted-average basis if more than one plan. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 17 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480482/715-20-55-17 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d)(i) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 + Details
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