Stockholders' Equity and Statutory Accounting Practices (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022
Stockholders' Equity and Statutory Accounting Practices [Abstract]
Increase in statutory capital and surplus due to prescribed practice	$ 92	$ 74
Statutory amount available for dividend payment before consideration of statutory dividends paid in the preceding twelve months	1,105
Dividends paid in the preceding twelve months	$ 1,055
Statutory accounting practices, statutory capital and surplus, percentage of action level risk based capital	225.00%	238.00%

Statutory Accounting Practices, Dividends Paid in the preceding twelve months

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- Definition

Statutory Accounting Practices, Statutory Amount Available for Dividend Payments Before Consideration of Statutory Dividends Paid in the preceding twelve months

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No definition available.

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- Definition

Statutory Accounting Practices, Statutory Capital And Surplus, Percentage Of Action Level Risk Based Capital

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No definition available.

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- Definition

Stockholders' Equity and Statutory Accounting Practices

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- Definition

Amount as of the balance sheet date of each item listed to reconcile the differences resulting from applying state prescribed statutory accounting practices rather than statutory accounting practices prescribed by National Association of Insurance Commissioners.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 944
-SubTopic 505
-Section 50
-Paragraph 3
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479989/944-505-50-3

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