Separate Accounts (Separate Account Liability) (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Separate Account, Liability [Line Items]
Separate Account, Liability, Beginning Balance	$ 81,690
Separate Account, Liability, Ending Balance	81,575	$ 81,901
Variable Annuities
Separate Account, Liability [Line Items]
Separate Account, Liability, Beginning Balance	77,086	74,845
Premiums and deposits	414	406
Surrenders and withdrawals	(3,774)	(2,877)
Benefit payments	(767)	(719)
Investment performance	4,831	6,906
Policy charges	(1,030)	(1,044)
Net transfers from (to) general account	(49)	(9)
Other	(14)	(9)
Separate Account, Liability, Ending Balance	76,697	77,499
Universal Life Insurance
Separate Account, Liability [Line Items]
Separate Account, Liability, Beginning Balance	2,276	1,970
Premiums and deposits	41	42
Surrenders and withdrawals	(39)	(38)
Benefit payments	(10)	(11)
Investment performance	198	253
Policy charges	(39)	(40)
Net transfers from (to) general account	(21)	(7)
Other	0	0
Separate Account, Liability, Ending Balance	2,406	2,169
Company-Owned Life Insurance
Separate Account, Liability [Line Items]
Separate Account, Liability, Beginning Balance	2,148	1,919
Premiums and deposits	0	0
Surrenders and withdrawals	(5)	(7)
Benefit payments	(12)	(16)
Investment performance	146	212
Policy charges	(26)	(24)
Net transfers from (to) general account	1	0
Other	0	(4)
Separate Account, Liability, Ending Balance	$ 2,252	$ 2,080