Closed Block (Narrative) (Details) - USD ($) $ in Millions	Mar. 31, 2026	Dec. 31, 2025
Closed Block Dividend Obligation	$ 80	$ 571
Accumulated Net Unrealized Investment Loss Pre Tax
Closed Block Dividend Obligation	1,407	1,064
Accumulated Distributions in Excess of Net Income
Closed Block Dividend Obligation	$ 1,487	$ 1,635

The liability as of the balance sheet date for the excess of the cumulative actual closed block earnings over the cumulative expected (actuarially determined) closed block earnings (each) for the period from the actuarial calculation date to the date of measurement. The excess will result in future dividends to closed block policyholders, unless offset by less favorable than expected future performance of the closed block. The policyholder dividend obligation, which may not have a negative balance, recognizes that a portion of earnings in certain cases will not inure to the stockholders of the insurance entity.

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 944
-SubTopic 805
-Name Accounting Standards Codification
-Section 55
-Paragraph 4
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477301/944-805-55-4

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 944
-SubTopic 805
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (b)(3)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478072/944-805-50-3

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant