Market Risk Benefits (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023	Dec. 31, 2022
Variable Annuities
Market Risk Benefit [Line Items]
Market Risk Benefit, after Increase (Decrease) from Instrument-Specific Credit Risk	$ 7,833	$ 9,250	$ 9,722	$ 9,997
Market Risk Benefit, before Reinsurance and Cumulative Increase (Decrease) from Instrument-Specific Credit Risk Change	5,784	7,383	$ 7,348	$ 8,253
Market Risk Benefit, Decrements	(67)	(54)
Market Risk Benefit, Increase (Decrease) from Actual Policyholder Behavior Different from Expected	88	170
Market Risk Benefit, Increase (Decrease) from Interest Rate Change	(1,547)	(146)
Market Risk Benefit, Increase (Decrease) from Equity Market Change	(648)	(1,529)
Market Risk Benefit, Issuance	0	(5)
Market Risk Benefit, Effect of changes in risk margin	(53)	(18)
Market Risk Benefit, Aging of the Block and Other	663	712
AOCI, Market Risk Benefit, Instrument-Specific Credit Risk, before Tax	2,049	1,867
Market Risk Benefit, Reinsurance Recoverable, after Allowance	22	50
Market Risk Benefit, after Reinsurance and Cumulative Increase (Decrease) from Instrument-Specific Credit Risk Change	$ 7,811	$ 9,200
Market Risk Benefit, Weighted-Average Attained Age of Contract holder	73 years 4 months 24 days	72 years 7 months 6 days
Index-linked Annuities
Market Risk Benefit [Line Items]
Market Risk Benefit, after Increase (Decrease) from Instrument-Specific Credit Risk	$ 0	$ 4