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F&G Reinsurance - Narrative (Details)		3 Months Ended		4 Months Ended	9 Months Ended
	Jan. 15, 2021	Sep. 30, 2021 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2021 USD ($)	May 31, 2021 agreement	Dec. 31, 2020 USD ($)	Jun. 01, 2020 USD ($)
Ceded Credit Risk [Line Items]
Expected credit losses on reinsurance recoverable		$ 19,000,000	$ 22,000,000	$ 22,000,000	$ 19,000,000		$ 21,000,000	$ 0
Credit loss, reserve (decrease) increase		$ (21,000,000)	$ 0	$ 0	$ (21,000,000)
Number of policies reinsured by foreign company not engaged in insurance					0
Funds withheld co-insurance basis, percentage	50.00%
Wilton Reassurance Company
Ceded Credit Risk [Line Items]
Net amount recoverable					$ 1,287,000,000
Kubera Reassurance Company
Ceded Credit Risk [Line Items]
Net amount recoverable					789,000,000
Aspida Re
Ceded Credit Risk [Line Items]
Net amount recoverable					717,000,000
Scottish Re
Ceded Credit Risk [Line Items]
Net amount recoverable					30,000,000
Pavonia Life Insurance Company
Ceded Credit Risk [Line Items]
Net amount recoverable					$ 76,000,000
Freestone Re Ltd
Ceded Credit Risk [Line Items]
Number of agreements executed | agreement						2

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Number of Agreements Executed

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Number of Policies Reinsured by Foreign Company Not Engaged in Insurance

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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
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-Publisher FASB
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-SubTopic 20
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