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F&G Reinsurance - Schedule of Reinsurance Recoverable (Details) - USD ($) $ in Millions	1 Months Ended				5 Months Ended	12 Months Ended
	Sep. 30, 2024	Aug. 31, 2024	Jul. 31, 2024	Jun. 30, 2024	May 31, 2024	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Dec. 31, 2022
Effects of Reinsurance [Line Items]
Allowance for expected credit loss	$ (21)			$ (21)		$ (21)	$ (10)	$ (9)	$ (10)
Reinsurance recoverable, net of allowance for credit losses	$ 12,409					$ 8,977
Reinsurance, retrocession, quota share basis, percentage	90.00%	90.00%	30.00%	30.00%	90.00%	90.00%
F&G
Effects of Reinsurance [Line Items]
Reinsurance recoverable, gross of allowance for credit losses	$ 12,425					$ 8,981
Allowance for expected credit loss	(21)					(21)
Reinsurance recoverable, net of allowance for credit losses	12,404					8,960
Aspida Life Re Ltd | Certain MYGA | F&G
Effects of Reinsurance [Line Items]
Reinsurance recoverable, gross of allowance for credit losses	7,543					6,128
Somerset Reinsurance Ltd (c) | Certain MYGA and DA | F&G
Effects of Reinsurance [Line Items]
Reinsurance recoverable, gross of allowance for credit losses	2,181					716
Everlake Life Insurance Company | Certain MYGA | F&G
Effects of Reinsurance [Line Items]
Reinsurance recoverable, gross of allowance for credit losses	1,120					509
Wilton Reassurance Company | Block of traditional, IUL and UL | F&G
Effects of Reinsurance [Line Items]
Reinsurance recoverable, gross of allowance for credit losses	1,073					1,092
Other | F&G
Effects of Reinsurance [Line Items]
Reinsurance recoverable, gross of allowance for credit losses	$ 508					$ 536

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Amount, after valuation allowance, recoverable under reinsurance contracts including premium paid under reinsurance contracts. Examples include, but are not limited to, settled and unsettled claims, incurred but not reported losses, loss adjustment expense, premium paid, policy benefits and policy reserves.

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Amount of allowance for credit loss on reinsurance recoverable.

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Amount before valuation allowance recoverable under reinsurance contracts. Examples include, but are not limited to, settled and unsettled claims, incurred but not reported losses, loss adjustment expense, premium paid, policy benefits and policy reserves.

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