Life Policy and Investment Contract Reserves (Narrative) (Details) - USD ($)	3 Months Ended
Mar. 31, 2024	Mar. 31, 2023
Life policy reserves:
Liability for Future Policy Benefit, after Reinsurance [Abstract]
Discount Rate Assumption Changes included in Impact of flooring at Cohort Level	$ 2,000,000	$ 5,000,000
Life Insurance Segment
Liability for Future Policy Benefit, after Reinsurance [Abstract]
Liability for Future Policy Benefit, Adverse Development, Expense	$ 0	$ 0

Amount of expense for adverse development on liability of future policy benefit from net premium exceeding gross premium.

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

Name:	us-gaap_LiabilityForFuturePolicyBenefitAdverseDevelopmentExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration