Separate Accounts - Schedule of Reconciliation of Separate Account Liabilities (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Separate Account, Liability [Roll Forward]
Balance as of beginning-of-year	$ 158,257
Balance as of end-of-period	165,199
Variable Annuities
Separate Account, Liability [Roll Forward]
Balance as of beginning-of-year	113,356	$ 105,573
Gross deposits	1,925	1,367
Withdrawals	(6,604)	(4,915)
Policyholder assessments	(1,301)	(1,251)
Change in market performance	9,026	9,950
Net transfers from (to) general account	368	274
Balance as of end-of-period	116,770	110,998
Cash surrender value	115,389	109,501
UL and Other
Separate Account, Liability [Roll Forward]
Balance as of beginning-of-year	25,150	20,920
Gross deposits	695	821
Withdrawals	(193)	(154)
Policyholder assessments	(493)	(476)
Change in market performance	2,335	2,374
Net transfers from (to) general account	(113)	(76)
Balance as of end-of-period	27,381	23,409
Cash surrender value	24,979	21,080
Retirement Plan Services
Separate Account, Liability [Roll Forward]
Balance as of beginning-of-year	19,699	16,996
Gross deposits	1,105	1,078
Withdrawals	(1,514)	(1,123)
Policyholder assessments	(89)	(79)
Change in market performance	1,802	1,953
Net transfers from (to) general account	(10)	(36)
Balance as of end-of-period	20,993	18,789
Cash surrender value	$ 20,979	$ 18,774