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F&G Reinsurance - Narrative (Details) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025 USD ($)	Sep. 30, 2024 USD ($)	Sep. 30, 2025 USD ($) policy	Sep. 30, 2024 USD ($)	Aug. 06, 2025 USD ($)	Dec. 31, 2024 USD ($)
Effects of Reinsurance [Line Items]
Number of policies reinsured by foreign company not engaged in insurance | policy			0
Deposit assets	$ 13,187		$ 13,187			$ 11,039
Reinsurance risk charge fee	$ 10	$ 10	$ 31	$ 32
Blackstone
Effects of Reinsurance [Line Items]
Reinsurance recoverable, gross of allowance					$ 1,000

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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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Carrying amount of assets as of the balance sheet date pertaining to amounts paid by the insured (including a ceding company) under insurance or reinsurance contracts for which insurance risk is not transferred.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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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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