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Other Comprehensive Income (Loss) (Reclassifications out of Accumulated Other Comprehensive Loss) (Parenthetical) (Details) - Defined Benefit Pension and Postretirement Plans [Member] | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023
Condensed Statement Of Income Captions [Line Items] |  |  |  |
Loss adjustment expenses | 40.00% | 40.00% | 40.00% | 40.00%
Percentage of other operating expenses | 60.00% | 60.00% | 60.00% | 60.00%

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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 Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-X (SX) -Number 210 -Section 12 -Subsection 04 -Paragraph a -Publisher SEC Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-04(a)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480678/235-10-S99-3 Reference 3: http://www.xbrl.org/2003/role/recommendedDisclosureRef -Topic 810 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 11 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481231/810-10-45-11 + Details
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- Definition Percentage of amounts reclassified from AOCI for pension and post retirement benefits allocated to loss adjustment expenses. + References No definition available. + Details
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- Definition Percentage of amounts reclassified from AOCI for pension and post retirement benefits allocated to other operating expenses. + References No definition available. + Details
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- Details
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