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Fair Value Measurements - Fair Value Option (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024	Dec. 31, 2024
Fair Value, Option, Quantitative Disclosures [Line Items]
Fixed maturities, at fair value using the fair value option ("FVO Securities")	$ 181		$ 181		$ 308
Changes in fair value of assets using fair value option	(13)	$ (1)	(17)	$ 3
Collateralized Loan Obligations [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Fixed maturities, at fair value using the fair value option ("FVO Securities")	181		181		308
Fair Value, Option, Residual Interest of Securitizations	$ 181		$ 181		$ 197

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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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