SCHEDULE I - PARENT COMPANY FINANCIAL INFORMATION (Notes to Condensed Financial Statements) (Details) - USD ($) $ in Billions	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Condensed Financial Information Disclosure [Abstract]
Actual dividends paid to parent company	$ 1.8	$ 1.3	$ 1.6
Aggregate statutory capital and surplus in our state regulated insurance subsidiaries	12.2	11.3
Aggregate minimum regulatory requirements of statutory capital and surplus	9.8	$ 8.4
Ordinary dividends that may be paid to parent company	$ 1.1

Amount of dividends paid to our parent company without prior approval by state regulatory authorities

No definition available.

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- References

No definition available.

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- Definition

Amount of dividends that can be declared or paid without approval of regulatory agency.

+ References

No definition available.

+ Details

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- Definition

The amount of statutory capital and surplus (stockholders' equity) as of the balance sheet date using prescribed or permitted statutory accounting practices (rather than GAAP, if different) of the state or country.

+ 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)(23)(c))
-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 505
-Section 50
-Paragraph 1
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479989/944-505-50-1

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- Definition

Amount of statutory capital required to be maintained as of the balance sheet date under prescribed or permitted statutory accounting practices.

+ References

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

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