Policyholders' Account Balances - Policyholder Account Balance (Details) - USD ($) $ in Millions	6 Months Ended
Jun. 30, 2026	Jun. 30, 2025
Policyholder Account Balance [Roll Forward]
Balance, beginning of period	$ 89,192	$ 82,153
Issuances	6,236	7,088
Premiums received	279	280
Policy charges	(494)	(476)
Surrenders and withdrawals	(5,614)	(5,092)
Interest credited	1,790	1,492
Benefit payments	(640)	(538)
Other	(5)	4
Balance, end of period	90,744	84,911
Total PAB balance, end of period	96,064	86,934
Cash surrender value	847	747
Funding agreements
Policyholder Account Balance [Roll Forward]
Reconciling items	3,509	930
Supplemental contracts
Policyholder Account Balance [Roll Forward]
Reconciling items	956	496
Embedded derivative and other
Policyholder Account Balance [Roll Forward]
Reconciling items	855	597
Annuities
Policyholder Account Balance [Roll Forward]
Balance, beginning of period	86,999	80,046
Issuances	6,229	7,062
Premiums received	63	62
Policy charges	(313)	(287)
Surrenders and withdrawals	(5,550)	(5,037)
Interest credited	1,726	1,441
Benefit payments	(640)	(538)
Other	(5)	4
Balance, end of period	88,509	82,753
Total PAB balance, end of period	$ 93,735	$ 84,687
Weighted-average crediting rate	3.60%	3.40%
Net amount at risk	$ 13,803	$ 12,907
Cash surrender value	81,571	76,292
Annuities \| Funding agreements
Policyholder Account Balance [Roll Forward]
Reconciling items	3,509	930
Annuities \| Supplemental contracts
Policyholder Account Balance [Roll Forward]
Reconciling items	956	496
Annuities \| Embedded derivative and other
Policyholder Account Balance [Roll Forward]
Reconciling items	761	508
Life Insurance
Policyholder Account Balance [Roll Forward]
Balance, beginning of period	2,193	2,107
Issuances	7	26
Premiums received	216	218
Policy charges	(181)	(189)
Surrenders and withdrawals	(64)	(55)
Interest credited	64	51
Benefit payments	0	0
Other	0	0
Balance, end of period	2,235	2,158
Total PAB balance, end of period	$ 2,329	$ 2,247
Weighted-average crediting rate	5.55%	5.17%
Net amount at risk	$ 38,083	$ 38,673
Cash surrender value	2,024	1,919
Life Insurance \| Funding agreements
Policyholder Account Balance [Roll Forward]
Reconciling items	0	0
Life Insurance \| Supplemental contracts
Policyholder Account Balance [Roll Forward]
Reconciling items	0	0
Life Insurance \| Embedded derivative and other
Policyholder Account Balance [Roll Forward]
Reconciling items	$ 94	$ 89

Policyholder Account Balance, Excluding Reconciling Items

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Policyholder Account Balance, Including Reconciling Items

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Policyholder Account Balance, Reconciling Items

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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.

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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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- Definition

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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- Definition

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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Amount of cash inflow to policyholder account balance from premium received.

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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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