Long-duration Contracts - Schedule of Policyholder Account Balance (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022
Policyholder Account Balance [Roll Forward]
Beginning balance	$ 168,339	$ 151,390
Deposits	54,304	35,341
Policy charges	(653)	(603)
Surrenders and withdrawals	(21,332)	(14,373)
Benefit payments	(6,141)	(5,698)
Interest credited	4,175	3,442
Foreign exchange	218	(446)
Other	(1,021)	(714)
Ending balance	197,889	168,339
Net amount at risk
Cash surrender value
Related Party
Policyholder Account Balance [Roll Forward]
Other	(1,371)
Traditional deferred annuities
Policyholder Account Balance [Roll Forward]
Beginning balance	43,518	35,599
Deposits	30,175	13,246
Policy charges	(2)	(3)
Surrenders and withdrawals	(9,929)	(5,419)
Benefit payments	(984)	(937)
Interest credited	1,858	1,032
Foreign exchange	52	0
Other	75	0
Ending balance	$ 64,763	$ 43,518
Weighted average crediting rate	4.00%	3.20%
Net amount at risk	$ 425	$ 422
Cash surrender value	61,345	41,273
Indexed annuities
Policyholder Account Balance [Roll Forward]
Beginning balance	92,660	89,755
Deposits	12,639	11,544
Policy charges	(651)	(600)
Surrenders and withdrawals	(11,253)	(8,057)
Benefit payments	(1,609)	(1,620)
Interest credited	1,279	1,638
Foreign exchange	1	0
Other	81	0
Ending balance	$ 93,147	$ 92,660
Weighted average crediting rate	2.40%	2.20%
Net amount at risk	$ 14,716	$ 13,581
Cash surrender value	85,381	84,724
Funding agreements
Policyholder Account Balance [Roll Forward]
Beginning balance	27,439	23,623
Deposits	6,893	7,970
Policy charges	0	0
Surrenders and withdrawals	(110)	(880)
Benefit payments	(3,273)	(2,819)
Interest credited	883	677
Foreign exchange	260	(440)
Other	258	(692)
Ending balance	$ 32,350	$ 27,439
Weighted average crediting rate	3.40%	2.50%
Net amount at risk	$ 0	$ 0
Cash surrender value	0	0
Other investment-type
Policyholder Account Balance [Roll Forward]
Beginning balance	4,722	2,413
Deposits	4,597	2,581
Policy charges	0	0
Surrenders and withdrawals	(40)	(17)
Benefit payments	(275)	(322)
Interest credited	155	95
Foreign exchange	(95)	(6)
Other	(1,435)	(22)
Ending balance	$ 7,629	$ 4,722
Weighted average crediting rate	2.70%	3.10%
Net amount at risk	$ 103	$ 47
Cash surrender value	$ 6,375	$ 2,213

Policyholder Account Balance, Foreign Exchange

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Amount due to policyholder. Includes, but is not limited to, unpaid policy dividend, retrospective refund, and undistributed earnings on participating business. Excludes future policy benefit and claim expense.

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