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Fair Value Measurements - Fair Value Option (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Fair Value, Option, Quantitative Disclosures [Line Items]
Fixed maturities, at fair value using the fair value option ("FVO Securities")	$ 308	$ 327
Changes in fair value of assets using fair value option	(5)	5	$ (28)
Fair Value, Option Residual Interest of Securitizations	$ 197
Collateralized Loan Obligations [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Fixed maturities, at fair value using the fair value option ("FVO Securities")		327
Fair Value, Option Residual Interest of Securitizations		$ 167

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- Definition

Fair Value, Option, Fixed Maturity Securities

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- Definition

For each line item in the statement of financial position, the amounts of gains and losses from fair value changes included in earnings.

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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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