Insurance Liabilities (Liability for Future Policy Benefits - Narrative) (Details)	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Mean Reversion Rate	0.0375	0.0350	0.0300
Participating whole life insurance (2)
Participating Insurance, Percentage of Gross Insurance in Force	3.00%
Participating Insurance, Percentage of Premium Income	40.00%	41.00%
Participating whole life insurance (2) \| Minimum
Liability for Future Policy Benefits, Interest Rate	3.50%
Participating whole life insurance (2) \| Maximum
Liability for Future Policy Benefits, Interest Rate	4.00%

Mean Reversion Rate

No definition available.

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- Definition

Rate of interest used to calculate the liability for future policy benefits.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 944
-SubTopic 40
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480081/944-40-50-6

+ Details

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- Definition

Percentage of participating insurance contract to insurance contracts in force.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 944
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(14)(b)(1))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479440/944-210-S99-1

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 944
-SubTopic 50
-Section 50
-Paragraph 1
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479756/944-50-50-1

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- Definition

Percentage of participating insurance to premium income.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 944
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(14)(b)(2))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479440/944-210-S99-1

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-Section 50
-Paragraph 1
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479756/944-50-50-1

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