Separate Accounts (Separate Account Liability) (Details) - USD ($) $ in Millions	6 Months Ended
Jun. 30, 2025	Jun. 30, 2024
Separate Account, Liability [Line Items]
Separate Account, Liability, Beginning Balance	$ 79,006
Separate Account, Liability, Ending Balance	79,403	$ 81,575
Variable Annuities
Separate Account, Liability [Line Items]
Separate Account, Liability, Beginning Balance	74,483	77,086
Premiums and deposits	476	414
Surrenders and withdrawals	(3,670)	(3,774)
Benefit payments	(825)	(767)
Investment performance	4,751	4,831
Policy charges	(976)	(1,030)
Net transfers from (to) general account	(55)	(49)
Other	(11)	(14)
Separate Account, Liability, Ending Balance	74,173	76,697
Universal Life Insurance
Separate Account, Liability [Line Items]
Separate Account, Liability, Beginning Balance	2,484	2,276
Premiums and deposits	37	41
Surrenders and withdrawals	(39)	(39)
Benefit payments	(14)	(10)
Investment performance	166	198
Policy charges	(41)	(39)
Net transfers from (to) general account	(6)	(21)
Other	0	0
Separate Account, Liability, Ending Balance	2,587	2,406
Company-Owned Life Insurance
Separate Account, Liability [Line Items]
Separate Account, Liability, Beginning Balance	1,799	2,148
Premiums and deposits	0	0
Surrenders and withdrawals	(4)	(5)
Benefit payments	(17)	(12)
Investment performance	114	146
Policy charges	(26)	(26)
Net transfers from (to) general account	525	1
Other	0	0
Separate Account, Liability, Ending Balance	$ 2,391	$ 2,252

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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