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F&G Reinsurance - Narrative (Details) $ in Millions			3 Months Ended		9 Months Ended
	Oct. 31, 2021 USD ($)	Jan. 15, 2021	Mar. 31, 2022 USD ($) policy	Mar. 31, 2021 USD ($)	Sep. 30, 2021 USD ($)	Dec. 31, 2021 USD ($)
Ceded Credit Risk [Line Items]
Expected credit losses on reinsurance recoverable			$ 20	$ 21		$ 20
Number of policies reinsured by foreign company not engaged in insurance | policy			0
Funds withheld co-insurance basis, percentage		50.00%
Hannover Re | Fixed indexed annuities
Ceded Credit Risk [Line Items]
Reinsurance risk charge fees			$ 5	5
Kubera Reassurance Company | Fixed indexed annuities
Ceded Credit Risk [Line Items]
Reinsurance risk charge fees			4	1
Reinsurance retention policy, amount retained	$ 10,000				$ 4,000
Canada Life Assurance Company, US
Ceded Credit Risk [Line Items]
Reinsurance risk charge fees			1	$ 0
Wilton Reassurance Company
Ceded Credit Risk [Line Items]
Net amount recoverable			1,279
Aspida Re
Ceded Credit Risk [Line Items]
Net amount recoverable			1,103
Somerset
Ceded Credit Risk [Line Items]
Net amount recoverable			$ 727

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Funds Withheld Co-Insurance Basis, Percentage

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Number of Policies Reinsured by Foreign Company Not Engaged in Insurance

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Reinsurance Risk Charge Fee

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The net amount (to the extent disclosed within this portion of the income statement) by which an insurance settlement exceeds incremental costs incurred from the event causing an interruption of business, plus the insurance award for earnings lost from the event, such as a natural catastrophe, explosion or fire.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (b)
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Amount of allowance for credit loss on reinsurance recoverable.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
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Stated amount that is the upper retention limit per entity policy.

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