Adoption of Accounting Pronouncement - Market Risk Benefit (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022	Sep. 30, 2022	Jan. 01, 2022
Market Risk Benefit [Roll Forward]
Beginning Balance	$ 2,736	$ (2,489)	$ 2,804	$ 4,447
Reported
Market Risk Benefit [Roll Forward]
Beginning Balance				0
Adjustment for addition of existing balances
Market Risk Benefit [Roll Forward]
Beginning Balance				5,610
Adjustment to positive VOBA due to fair value adjustment for market risk benefits
Market Risk Benefit [Roll Forward]
Beginning Balance				(1,133)
Adjustment to negative VOBA due to fair value adjustment for market risk benefits
Market Risk Benefit [Roll Forward]
Beginning Balance				(30)
Traditional deferred annuities
Market Risk Benefit [Roll Forward]
Beginning Balance	174	(170)	179	253
Traditional deferred annuities | Reported
Market Risk Benefit [Roll Forward]
Beginning Balance				0
Traditional deferred annuities | Adjustment for addition of existing balances
Market Risk Benefit [Roll Forward]
Beginning Balance				221
Traditional deferred annuities | Adjustment to positive VOBA due to fair value adjustment for market risk benefits
Market Risk Benefit [Roll Forward]
Beginning Balance				32
Traditional deferred annuities | Adjustment to negative VOBA due to fair value adjustment for market risk benefits
Market Risk Benefit [Roll Forward]
Beginning Balance				0
Indexed annuities
Market Risk Benefit [Roll Forward]
Beginning Balance	$ 2,562	$ (2,319)	$ 2,625	4,194
Indexed annuities | Reported
Market Risk Benefit [Roll Forward]
Beginning Balance				0
Indexed annuities | Adjustment for addition of existing balances
Market Risk Benefit [Roll Forward]
Beginning Balance				5,389
Indexed annuities | Adjustment to positive VOBA due to fair value adjustment for market risk benefits
Market Risk Benefit [Roll Forward]
Beginning Balance				(1,165)
Indexed annuities | Adjustment to negative VOBA due to fair value adjustment for market risk benefits
Market Risk Benefit [Roll Forward]
Beginning Balance				$ (30)