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Life Policy and Investment Contract Reserves (Narrative) (Details) - USD ($) | 3 Months Ended
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Mar. 31, 2025 | Mar. 31, 2024
Life policy reserves: |  |
Liability for Future Policy Benefit, after Reinsurance [Abstract] |  |
Discount Rate Assumption Changes included in Impact of flooring at Cohort Level | $ 3,000,000 | $ 2,000,000
Life Insurance Segment |  |
Liability for Future Policy Benefit, after Reinsurance [Abstract] |  |
Liability for Future Policy Benefit, Adverse Development, Expense | $ 0 | $ 0

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- Definition Amount of expense for adverse development on liability of future policy benefit from net premium exceeding gross premium. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480081/944-40-50-6 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 65 -Paragraph 2 -Subparagraph (g)(2)(iii) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480016/944-40-65-2 + Details
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