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Investments - Proceeds From the Sale of Fixed-Maturity Available-For-Sale Securities (Details) - Total fixed maturities - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Debt Securities, Available-for-sale [Line Items]
Proceeds	$ 609	$ 802	$ 1,098	$ 1,835
Gross gains	0	1	8	5
Gross losses	$ (33)	$ (61)	$ (90)	$ (69)

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Amount of realized gain on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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