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F&G Reinsurance - Schedule of Reinsurance Recoverable (Details) - USD ($) $ in Millions	Sep. 30, 2025	Dec. 31, 2024
Effects of Reinsurance [Line Items]
Allowance for expected credit losses	$ (18)	$ (20)
Reinsurance recoverable, net of allowance for expected credit losses	16,848	13,380
F&G
Effects of Reinsurance [Line Items]
Reinsurance recoverable, gross of allowance	16,861	13,389
Allowance for expected credit losses	(18)	(20)
Reinsurance recoverable, net of allowance for expected credit losses	16,843	13,369
Aspida Life Re Ltd. | Certain MYGA | F&G
Effects of Reinsurance [Line Items]
Reinsurance recoverable, gross of allowance	8,649	7,844
Somerset Reinsurance Ltd | Certain MYGA and deferred annuities | F&G
Effects of Reinsurance [Line Items]
Reinsurance recoverable, gross of allowance	4,503	2,822
Everlake | Certain MYGA | F&G
Effects of Reinsurance [Line Items]
Reinsurance recoverable, gross of allowance	1,857	1,168
Wilton Reassurance Company | Block of traditional, IUL and UL | F&G
Effects of Reinsurance [Line Items]
Reinsurance recoverable, gross of allowance	1,039	1,066
Other | F&G
Effects of Reinsurance [Line Items]
Reinsurance recoverable, gross of allowance	$ 813	$ 489

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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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