SCHEDULE III - CONDENSED SUPPLEMENTARY INSURANCE INFORMATION (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Line Items]
DAC and VOBA	$ 12,187	$ 12,027	$ 11,681
Future Contract Benefits	40,174	38,302	40,767
Unearned Premiums	0	0	0
Policyholder Account Balances	120,316	113,972	109,716
Insurance Premiums	3,416	5,841	5,359
Net Investment Income	5,712	5,274	5,839
Benefits and Interest Credited	8,230	11,063	10,939
Amortization of DAC and VOBA	1,045	1,027	1,047
Other Operating Expense	4,547	4,066	4,051
Premiums Written	0	0	0
Annuities
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Line Items]
DAC and VOBA	4,304	4,336	4,328
Future Contract Benefits	2,090	2,004	2,511
Unearned Premiums	0	0	0
Policyholder Account Balances	54,471	45,522	41,670
Insurance Premiums	(1,584)	165	116
Net Investment Income	1,744	1,387	1,314
Benefits and Interest Credited	(254)	1,145	1,012
Amortization of DAC and VOBA	443	442	418
Other Operating Expense	1,522	1,449	1,565
Premiums Written	0	0	0
Life Insurance
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Line Items]
DAC and VOBA	7,485	7,309	6,973
Future Contract Benefits	22,049	20,561	19,074
Unearned Premiums	0	0	0
Policyholder Account Balances	37,035	37,523	37,994
Insurance Premiums	915	908	783
Net Investment Income	2,515	2,464	3,054
Benefits and Interest Credited	4,626	5,146	5,119
Amortization of DAC and VOBA	484	469	471
Other Operating Expense	703	672	692
Premiums Written	0	0	0
Group Protection
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Line Items]
DAC and VOBA	154	141	140
Future Contract Benefits	6,282	6,086	6,604
Unearned Premiums	0	0	0
Policyholder Account Balances	0	0	0
Insurance Premiums	5,014	4,768	4,450
Net Investment Income	336	333	364
Benefits and Interest Credited	4,025	4,039	4,075
Amortization of DAC and VOBA	100	97	139
Other Operating Expense	1,347	1,219	1,153
Premiums Written	0	0	0
Retirement Plan Services
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Line Items]
DAC and VOBA	244	241	240
Future Contract Benefits	0	0	0
Unearned Premiums	0	0	0
Policyholder Account Balances	23,784	25,138	23,580
Insurance Premiums	0	0	0
Net Investment Income	999	966	982
Benefits and Interest Credited	665	629	616
Amortization of DAC and VOBA	18	19	19
Other Operating Expense	426	379	387
Premiums Written	0	0	0
Other Operations (1)
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Line Items]
DAC and VOBA	0	0	0
Future Contract Benefits	9,753	9,651	12,578
Unearned Premiums	0	0	0
Policyholder Account Balances	5,026	5,789	6,472
Insurance Premiums	(929)	0	10
Net Investment Income	118	124	125
Benefits and Interest Credited	(832)	104	117
Amortization of DAC and VOBA	0	0	0
Other Operating Expense	549	347	254
Premiums Written	$ 0	$ 0	$ 0