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	9 Months Ended
Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Premiums and other considerations:
Direct	$ 508	$ 642	$ 1,319	$ 1,248
Ceded	(26)	(31)	(79)	(98)
Net	482	611	1,240	1,150
Benefits and Other Changes in Insurance Policy Reserves:
Direct	323	1,287	2,057	1,996
Ceded	(31)	(717)	(136)	(1,600)
Net	$ 292	$ 570	$ 1,921	$ 396

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
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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
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-SubTopic 220
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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
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