F&G Reinsurance - Effect of Reinsurance on Premiums Earned, Benefits Incurred and Reserve Changes (Details) - Traditional Life Insurance Premiums - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2024	Mar. 31, 2023
Premiums and other considerations:
Direct	$ 620	$ 301
Ceded	(24)	(26)
Net	596	275
Benefits and Other Changes in Insurance Policy Reserves:
Direct	1,213	872
Ceded	(52)	(60)
Net	$ 1,161	$ 812

Amount of earned premiums ceded to other entities.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 944
-SubTopic 235
-Name Accounting Standards Codification
-Section S99
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Amount, before premiums ceded to other entities and premiums assumed by the entity, of premiums earned.

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Amount, before effect of policies assumed or ceded, of expense related to provision for policy benefits and costs incurred.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 944
-SubTopic 220
-Name Accounting Standards Codification
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Amount, after effects of policies assumed or ceded, of expense related to the provision for policy benefits and costs incurred.

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Amount, after premiums ceded to other entities and premiums assumed by the entity, of premiums earned.

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Amount of reduction of provision for policy benefits and costs incurred for policies ceded.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 944
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