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Fair Value of Financial Instruments - Schedule of Investment Holdings Movements (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Fair Value Investments Entities That Calculate Net Asset Value Per Share Unobservable Input Investment Holdings Movements [Abstract]
Issuances	$ 590	$ 211	$ 917	$ 345
Sales	(119)	(105)	(263)	(195)
Maturities	1	(26)	(4)	(34)
Settlements	(118)	(232)	(224)	(460)
Calls	(11)	(11)	(12)	(13)
Total	343	(163)	414	(357)
Corporate bonds | Fixed maturity AFS securities, at fair value
Fair Value Investments Entities That Calculate Net Asset Value Per Share Unobservable Input Investment Holdings Movements [Abstract]
Issuances	364	268	641	409
Sales	(58)	(2)	(199)	(37)
Maturities	0	(26)	(2)	(34)
Settlements	(114)	(234)	(225)	(302)
Calls	0	(11)	(1)	(11)
Total	192	(5)	214	25
State and municipal bonds | Fixed maturity AFS securities, at fair value
Fair Value Investments Entities That Calculate Net Asset Value Per Share Unobservable Input Investment Holdings Movements [Abstract]
Issuances		0		0
Sales		(1)		(1)
Maturities		0		0
Settlements		0		0
Calls		0		0
Total		(1)	0	(1)
RMBS | Fixed maturity AFS securities, at fair value
Fair Value Investments Entities That Calculate Net Asset Value Per Share Unobservable Input Investment Holdings Movements [Abstract]
Issuances	6	5	6	5
Sales	0	0	0	0
Maturities	0	0	0	0
Settlements	0	0	0	0
Calls	0	0	0	0
Total	6	5	6	5
CMBS
Fair Value Investments Entities That Calculate Net Asset Value Per Share Unobservable Input Investment Holdings Movements [Abstract]
Total		(4)
CMBS | Fixed maturity AFS securities, at fair value
Fair Value Investments Entities That Calculate Net Asset Value Per Share Unobservable Input Investment Holdings Movements [Abstract]
Issuances	15	0	15	0
Sales	0	0	0	0
Maturities	0	0	0	0
Settlements	0	(4)	0	(4)
Calls	0	0	0	0
Total	15	(4)	15	(4)
ABS | Fixed maturity AFS securities, at fair value
Fair Value Investments Entities That Calculate Net Asset Value Per Share Unobservable Input Investment Holdings Movements [Abstract]
Issuances	462	216	726	457
Sales	(30)	0	(30)	(2)
Maturities	0	0	0	0
Settlements	(56)	(64)	(119)	(135)
Calls	(11)	0	(11)	0
Total	365	152	566	320
Hybrid and redeemable preferred securities | Fixed maturity AFS securities, at fair value
Fair Value Investments Entities That Calculate Net Asset Value Per Share Unobservable Input Investment Holdings Movements [Abstract]
Issuances				0
Sales				0
Maturities				0
Settlements				0
Calls				(2)
Total	0	0	0	(2)
Trading securities
Fair Value Investments Entities That Calculate Net Asset Value Per Share Unobservable Input Investment Holdings Movements [Abstract]
Issuances	5	0	5	0
Sales	0	(102)	(2)	(155)
Maturities	0	0	0	0
Settlements	(3)	(3)	(14)	(77)
Calls	0	0	0	0
Total	2	(105)	(11)	(232)
Equity securities
Fair Value Investments Entities That Calculate Net Asset Value Per Share Unobservable Input Investment Holdings Movements [Abstract]
Issuances	0	1	0	1
Sales	(1)	0	(1)	0
Maturities	0	0	0	0
Settlements	0	0	0	0
Calls	0	0	0	0
Total	(1)	1	(1)	1
Mortgage loans on real estate
Fair Value Investments Entities That Calculate Net Asset Value Per Share Unobservable Input Investment Holdings Movements [Abstract]
Issuances	0	3	1	4
Sales	(30)	0	(31)	0
Maturities	0	0	0	0
Settlements	(5)	(87)	(5)	(90)
Calls	0	0	0	0
Total	(35)	(84)	(35)	(86)
Derivative investments
Fair Value Investments Entities That Calculate Net Asset Value Per Share Unobservable Input Investment Holdings Movements [Abstract]
Issuances	(3)		4
Sales	0		0
Maturities	1		(2)
Settlements	0		0
Calls	0		0
Total	(2)	0	2	0
Indexed annuity ceded embedded derivatives | Other Assets
Fair Value Investments Entities That Calculate Net Asset Value Per Share Unobservable Input Investment Holdings Movements [Abstract]
Issuances	26	34	52	84
Sales	0	0	0	0
Maturities	0	0	0	0
Settlements	(43)	0	(69)	(17)
Calls	0	0	0	0
Total	(17)	34	(17)	67
RILA, fixed indexed annuity and IUL contracts | Policyholder Account Balances
Fair Value Investments Entities That Calculate Net Asset Value Per Share Unobservable Input Investment Holdings Movements [Abstract]
Issuances	(285)	(316)	(533)	(615)
Sales	0	0	0	0
Maturities	0	0	0	0
Settlements	103	160	208	165
Calls	0	0	0	0
Total	$ (182)	$ (156)	$ (325)	$ (450)

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Represents decreases to the amount of certain investments for which net asset value per share is calculated (including by unit, membership interest, or other equity (ownership interest) unit measure) (alternative investments) due to calls of investments during the period. The alternative investments represented by this item are subject to significant unobservable inputs (Level 3) for purposes of measuring fair value.

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Amount of issuances of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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Amount of sale of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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