Insurance Liabilities (Policyholder Account Balances) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Policyholder Account Balance [Line Items]
Policyholder Account Balance, Beginning Balance	$ 80,193
Interest credited to policyholder account balances	2,110	$ 1,801	$ 1,313
Policyholder Account Balance, Ending Balance	87,162	80,193
Universal Life Insurance
Policyholder Account Balance [Line Items]
Policyholder Account Balance, Beginning Balance	1,980	2,100	2,134
Premiums and deposits	229	210	199
Surrenders and withdrawals	(56)	(129)	(49)
Benefit payments	(46)	(59)	(59)
Net transfers from (to) separate account	32	18	21
Interest credited to policyholder account balances	82	40	56
Policy charges	(193)	(200)	(202)
Changes related to embedded derivatives	0	0	0
Policyholder Account Balance, Ending Balance	$ 2,028	$ 1,980	$ 2,100
Weighted-average crediting rate (2)	4.10%	2.03%	2.65%
Variable Annuities
Policyholder Account Balance [Line Items]
Policyholder Account Balance, Beginning Balance	$ 4,111	$ 4,664	$ 4,475
Premiums and deposits	73	75	145
Surrenders and withdrawals	(616)	(647)	(453)
Benefit payments	(93)	(101)	(104)
Net transfers from (to) separate account	102	14	131
Interest credited to policyholder account balances	109	129	493
Policy charges	(19)	(23)	(23)
Changes related to embedded derivatives	0	0	0
Policyholder Account Balance, Ending Balance	$ 3,667	$ 4,111	$ 4,664
Weighted-average crediting rate (2)	2.81%	2.91%	10.91%
Index-linked Annuities
Policyholder Account Balance [Line Items]
Policyholder Account Balance, Beginning Balance	$ 41,627	$ 33,897	$ 32,000
Premiums and deposits	8,228	7,183	6,632
Surrenders and withdrawals	(5,532)	(3,732)	(2,220)
Benefit payments	(324)	(240)	(180)
Net transfers from (to) separate account	0	0	0
Interest credited to policyholder account balances	673	445	392
Policy charges	(23)	(11)	(8)
Changes related to embedded derivatives	3,956	4,085	(2,719)
Policyholder Account Balance, Ending Balance	$ 48,605	$ 41,627	$ 33,897
Weighted-average crediting rate (2)	1.79%	1.47%	1.16%
Fixed Rate Annuities
Policyholder Account Balance [Line Items]
Policyholder Account Balance, Beginning Balance	$ 14,672	$ 14,274	$ 11,849
Premiums and deposits	1,127	2,694	3,676
Surrenders and withdrawals	(1,356)	(2,405)	(904)
Benefit payments	(345)	(377)	(345)
Net transfers from (to) separate account	0	0	0
Interest credited to policyholder account balances	567	486	(2)
Policy charges	0	0	0
Changes related to embedded derivatives	0	0	0
Policyholder Account Balance, Ending Balance	$ 14,665	$ 14,672	$ 14,274
Weighted-average crediting rate (2)	3.84%	3.31%	(0.02%)
ULSG
Policyholder Account Balance [Line Items]
Policyholder Account Balance, Beginning Balance	$ 5,052	$ 5,307	$ 5,569
Premiums and deposits	645	660	697
Surrenders and withdrawals	(23)	(23)	(32)
Benefit payments	(70)	(85)	(84)
Net transfers from (to) separate account	0	0	0
Interest credited to policyholder account balances	163	208	197
Policy charges	(988)	(1,015)	(1,040)
Changes related to embedded derivatives	0	0	0
Policyholder Account Balance, Ending Balance	$ 4,779	$ 5,052	$ 5,307
Weighted-average crediting rate (2)	3.32%	4.02%	3.62%
Company-Owned Life Insurance
Policyholder Account Balance [Line Items]
Policyholder Account Balance, Beginning Balance	$ 653	$ 641	$ 646
Premiums and deposits	0	0	0
Surrenders and withdrawals	0	0	0
Benefit payments	(9)	(8)	(8)
Net transfers from (to) separate account	500	1	(13)
Interest credited to policyholder account balances	29	28	23
Policy charges	(7)	(9)	(7)
Changes related to embedded derivatives	0	0	0
Policyholder Account Balance, Ending Balance	$ 1,166	$ 653	$ 641
Weighted-average crediting rate (2)	3.63%	4.33%	3.41%