Separate Accounts (Separate Account Liability) (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2026	Mar. 31, 2025
Separate Account, Liability [Line Items]
Separate Account, Liability, Beginning Balance	$ 78,825
Separate Account, Liability, Ending Balance	74,551	$ 76,257
Variable Annuities
Separate Account, Liability [Line Items]
Separate Account, Liability, Beginning Balance	73,416	74,483
Premiums and deposits	228	230
Surrenders and withdrawals	(1,977)	(1,941)
Benefit payments	(410)	(405)
Investment performance	(1,397)	(481)
Policy charges	(459)	(473)
Net transfers from (to) general account	(14)	(28)
Other	10	4
Separate Account, Liability, Ending Balance	69,397	71,389
Universal Life Insurance
Separate Account, Liability [Line Items]
Separate Account, Liability, Beginning Balance	2,687	2,484
Premiums and deposits	17	19
Surrenders and withdrawals	(26)	(21)
Benefit payments	(8)	(10)
Investment performance	(93)	(66)
Policy charges	(18)	(20)
Net transfers from (to) general account	(3)	(3)
Other	0	0
Separate Account, Liability, Ending Balance	2,556	2,383
Company-Owned Life Insurance
Separate Account, Liability [Line Items]
Separate Account, Liability, Beginning Balance	2,447	1,799
Premiums and deposits	0	0
Surrenders and withdrawals	(52)	(3)
Benefit payments	(15)	(5)
Investment performance	(40)	(31)
Policy charges	(16)	(17)
Net transfers from (to) general account	0	495
Other	3	3
Separate Account, Liability, Ending Balance	$ 2,327	$ 2,241

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

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Amount of increase (decrease) in separate account liability from performance of investment.

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Amount increase (decrease) in separate account liability from change, classified as other.

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Amount of decrease in separate account liability from policy charge.

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Amount of cash inflow to separate account liability from premium and deposit from cash received.

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Amount of decrease in separate account liability from contract redemption and withdrawal of funds.

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Amount of liability for variable contract in which all or portion of contract holder's funds is allocated to specific separate account and supported by assets held in separate account.

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Amount of transfer to (from) liability for policyholder account balance (to) from liability for separate account.

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