Insurance Liabilities (Policyholder Account Balances) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Policyholder Account Balance [Line Items]
Interest credited to policyholder account balances	$ 503	$ 446	$ 999	$ 862
Policyholder Account Balance, Ending Balance	85,015	77,742	85,015	77,742
Universal Life Insurance
Policyholder Account Balance [Line Items]
Policyholder Account Balance, Beginning Balance			1,980	2,100
Premiums and deposits			111	103
Surrenders and withdrawals			(31)	(74)
Benefit payments			(25)	(39)
Net transfers from (to) separate account			21	7
Interest credited to policyholder account balances			39	(3)
Policy charges			(97)	(100)
Changes related to embedded derivatives			0	0
Policyholder Account Balance, Ending Balance	$ 1,998	$ 1,994	$ 1,998	$ 1,994
Weighted-average crediting rate (2)	1.96%	(0.15%)	1.96%	(0.15%)
Variable Annuities
Policyholder Account Balance [Line Items]
Policyholder Account Balance, Beginning Balance			$ 4,111	$ 4,664
Premiums and deposits			34	43
Surrenders and withdrawals			(324)	(303)
Benefit payments			(45)	(54)
Net transfers from (to) separate account			49	9
Interest credited to policyholder account balances			51	75
Policy charges			(11)	(13)
Changes related to embedded derivatives			0	0
Policyholder Account Balance, Ending Balance	$ 3,865	$ 4,421	$ 3,865	$ 4,421
Weighted-average crediting rate (2)	1.28%	1.65%	1.28%	1.65%
Index-linked Annuities
Policyholder Account Balance [Line Items]
Policyholder Account Balance, Beginning Balance			$ 41,627	$ 33,897
Premiums and deposits			4,236	3,390
Surrenders and withdrawals			(2,510)	(1,613)
Benefit payments			(151)	(117)
Net transfers from (to) separate account			0	0
Interest credited to policyholder account balances			291	203
Policy charges			(9)	(4)
Changes related to embedded derivatives			2,605	2,793
Policyholder Account Balance, Ending Balance	$ 46,089	$ 38,549	$ 46,089	$ 38,549
Weighted-average crediting rate (2)	0.85%	0.66%	0.85%	0.66%
Fixed Rate Annuities
Policyholder Account Balance [Line Items]
Policyholder Account Balance, Beginning Balance			$ 14,672	$ 14,274
Premiums and deposits			687	1,479
Surrenders and withdrawals			(736)	(874)
Benefit payments			(178)	(203)
Net transfers from (to) separate account			0	0
Interest credited to policyholder account balances			281	229
Policy charges			0	0
Changes related to embedded derivatives			0	0
Policyholder Account Balance, Ending Balance	$ 14,726	$ 14,905	$ 14,726	$ 14,905
Weighted-average crediting rate (2)	1.90%	1.57%	1.90%	1.57%
ULSG
Policyholder Account Balance [Line Items]
Policyholder Account Balance, Beginning Balance			$ 5,052	$ 5,307
Premiums and deposits			328	339
Surrenders and withdrawals			(10)	(12)
Benefit payments			(39)	(55)
Net transfers from (to) separate account			0	0
Interest credited to policyholder account balances			82	122
Policy charges			(499)	(513)
Changes related to embedded derivatives			0	0
Policyholder Account Balance, Ending Balance	$ 4,914	$ 5,188	$ 4,914	$ 5,188
Weighted-average crediting rate (2)	1.65%	2.33%	1.65%	2.33%
Company-Owned Life Insurance
Policyholder Account Balance [Line Items]
Policyholder Account Balance, Beginning Balance			$ 653	$ 641
Premiums and deposits			0	0
Surrenders and withdrawals			0	0
Benefit payments			(5)	(4)
Net transfers from (to) separate account			(1)	0
Interest credited to policyholder account balances			18	15
Policy charges			(6)	(6)
Changes related to embedded derivatives			0	0
Policyholder Account Balance, Ending Balance	$ 659	$ 646	$ 659	$ 646
Weighted-average crediting rate (2)	2.49%	2.33%	2.49%	2.33%