Long-duration Contracts - Policyholder Account Balance Rollforward (Details) - USD ($) $ in Millions	9 Months Ended
Sep. 30, 2026	Sep. 30, 2025
Policyholder Account Balance [Roll Forward]
Beginning balance	$ 308,894	$ 247,320
Deposits	60,887	69,917
Policy charges	(647)	(584)
Surrenders and withdrawals	(15,897)	(15,171)
Benefit payments	(15,306)	(8,451)
Interest credited	10,958	7,872
Foreign exchange	(397)	1,425
Other	(1,228)	176
Ending balance	347,264	302,504
Indexed annuities
Policyholder Account Balance [Roll Forward]
Beginning balance	105,317	97,861
Deposits	14,171	13,957
Policy charges	(646)	(583)
Surrenders and withdrawals	(8,989)	(8,507)
Benefit payments	(1,231)	(1,170)
Interest credited	3,604	2,091
Foreign exchange	2	6
Other	0	0
Ending balance	$ 112,228	$ 103,655
Weighted average crediting rate	2.80%	2.70%
Net amount at risk	$ 18,595	$ 17,195
Cash surrender value	101,977	96,273
Funding agreements
Policyholder Account Balance [Roll Forward]
Beginning balance	85,555	54,768
Deposits	20,490	31,400
Policy charges	0	0
Surrenders and withdrawals	(47)	0
Benefit payments	(12,716)	(6,026)
Interest credited	3,017	2,340
Foreign exchange	(358)	892
Other	(1,130)	233
Ending balance	$ 94,811	$ 83,607
Weighted average crediting rate	4.70%	4.70%
Net amount at risk	$ 0	$ 0
Cash surrender value	0	0
Other investment-type
Policyholder Account Balance [Roll Forward]
Beginning balance	8,821	8,030
Deposits	1,848	964
Policy charges	0	0
Surrenders and withdrawals	(89)	(127)
Benefit payments	(205)	(211)
Interest credited	211	169
Foreign exchange	(23)	301
Other	(98)	(57)
Ending balance	$ 10,465	$ 9,069
Weighted average crediting rate	3.20%	2.80%
Net amount at risk	$ 10	$ 31
Cash surrender value	6,919	7,089
Traditional deferred annuities
Policyholder Account Balance [Roll Forward]
Beginning balance	109,201	86,661
Deposits	24,378	23,596
Policy charges	(1)	(1)
Surrenders and withdrawals	(6,772)	(6,537)
Benefit payments	(1,154)	(1,044)
Interest credited	4,126	3,272
Foreign exchange	(18)	226
Other	0	0
Ending balance	$ 129,760	$ 106,173
Weighted average crediting rate	4.80%	4.70%
Net amount at risk	$ 421	$ 423
Cash surrender value	$ 120,420	$ 100,279

Policyholder Account Balance, Foreign Exchange

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- Definition

Amount of cash to be paid to policyholder upon termination and surrender of long-duration contract issued by insurance entity.

+ References

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Amount of interest expense for allocation to policyholder account balance.

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Amount of cash outflow to policyholder account balance from benefit payment.

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Amount of increase (decrease) in liability for policyholder account balance from change, classified as other.

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Amount of increase in liability for policyholder account balance from contract issuance.

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Amount of guaranteed benefit in excess of current account balance of policyholder account balance.

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Amount of decrease in liability for policyholder account balance from policy charge.

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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 of decrease in liability for policyholder account balance from contract redemption and withdrawal of funds.

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Weighted-average crediting rate for liability for policyholder account balance, calculated at a point in time.

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- Definition

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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