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Separate Accounts (Separate Account Liability) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Separate Account, Liability [Line Items]
Separate Account, Liability, Beginning Balance	$ 88,271
Separate Account, Liability, Ending Balance	90,332	$ 87,440
Variable Annuities
Separate Account, Liability [Line Items]
Separate Account, Liability, Beginning Balance	79,990	77,653
Premiums and deposits	203	216
Surrenders and withdrawals	(1,948)	(1,496)
Benefit payments	(399)	(383)
Investment performance	4,496	4,310
Policy charges	(506)	(519)
Net transfers from (to) general account	(34)	(11)
Other	(10)	0
Separate Account, Liability, Ending Balance	81,792	79,770
Universal Life Insurance
Separate Account, Liability [Line Items]
Separate Account, Liability, Beginning Balance	5,921	5,218
Premiums and deposits	39	43
Surrenders and withdrawals	(62)	(41)
Benefit payments	(16)	(14)
Investment performance	444	341
Policy charges	(51)	(52)
Net transfers from (to) general account	(16)	(12)
Other	0	0
Separate Account, Liability, Ending Balance	6,259	5,483
Company-Owned Life Insurance
Separate Account, Liability [Line Items]
Separate Account, Liability, Beginning Balance	2,162	1,932
Premiums and deposits	0	0
Surrenders and withdrawals	(3)	(3)
Benefit payments	(5)	(10)
Investment performance	113	111
Policy charges	(13)	(11)
Net transfers from (to) general account	(200)	0
Other	0	0
Separate Account, Liability, Ending Balance	$ 2,054	$ 2,019

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

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