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	$ 12,201	$ 12,037	$ 11,685
Future Contract Benefits	39,864	38,826	41,425
Unearned Premiums	0	0	0
Policyholder Account Balances	120,737	114,435	110,227
Insurance Premiums	3,672	6,087	5,617
Net Investment Income	5,879	5,515	6,111
Benefits and Interest Credited	9,386	11,356	11,432
Amortization of DAC and VOBA	1,040	1,022	1,037
Other Operating Expense	4,783	4,553	4,539
Premiums Written	0	0	0
Annuities
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Line Items]
DAC and VOBA	4,187	4,207	4,185
Future Contract Benefits	2,090	2,005	2,511
Unearned Premiums	0	0	0
Policyholder Account Balances	54,496	45,549	41,700
Insurance Premiums	(1,584)	165	116
Net Investment Income	1,668	1,463	1,400
Benefits and Interest Credited	(193)	1,204	1,030
Amortization of DAC and VOBA	430	429	403
Other Operating Expense	1,618	1,587	1,699
Premiums Written	0	0	0
Life Insurance
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Line Items]
DAC and VOBA	7,621	7,453	7,125
Future Contract Benefits	21,613	20,953	19,564
Unearned Premiums	0	0	0
Policyholder Account Balances	37,432	37,959	38,475
Insurance Premiums	1,162	1,146	1,033
Net Investment Income	2,712	2,587	3,207
Benefits and Interest Credited	5,717	5,381	5,593
Amortization of DAC and VOBA	492	478	476
Other Operating Expense	755	715	739
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	339	334	365
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	239	236	235
Future Contract Benefits	0	0	0
Unearned Premiums	0	0	0
Policyholder Account Balances	23,784	25,138	23,579
Insurance Premiums	0	0	0
Net Investment Income	1,012	976	991
Benefits and Interest Credited	664	629	616
Amortization of DAC and VOBA	18	18	19
Other Operating Expense	427	379	387
Premiums Written	0	0	0
Other Operations
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Line Items]
DAC and VOBA	0	0	0
Future Contract Benefits	9,879	9,782	12,746
Unearned Premiums	0	0	0
Policyholder Account Balances	5,025	5,789	6,473
Insurance Premiums	(920)	8	18
Net Investment Income	148	155	148
Benefits and Interest Credited	(827)	103	118
Amortization of DAC and VOBA	0	0	0
Other Operating Expense	636	653	561
Premiums Written	$ 0	$ 0	$ 0