POLICYHOLDER ACCOUNT BALANCES - Reconciliation of Separate Account Liabilities to Separate Account Liability balance (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022	Sep. 30, 2022	Dec. 31, 2021
Liability for Future Policy Benefit, Activity [Line Items]
Separate Accounts liabilities	$ 112,787	$ 111,479
VUL | Protection Solutions
Liability for Future Policy Benefit, Activity [Line Items]
Separate Accounts liabilities	12,431	11,535	$ 10,807	$ 14,574
GMxB Legacy | Legacy Segment
Liability for Future Policy Benefit, Activity [Line Items]
Separate Accounts liabilities	31,769	32,616	31,602	44,912
GMxB Core | Legacy Segment
Liability for Future Policy Benefit, Activity [Line Items]
Separate Accounts liabilities	26,142	27,017
GMxB Core | Individual Retirement
Liability for Future Policy Benefit, Activity [Line Items]
Separate Accounts liabilities	26,142	27,017	26,245	34,973
EQUI-VEST Individual | Individual Retirement
Liability for Future Policy Benefit, Activity [Line Items]
Separate Accounts liabilities	4,250	4,162	3,997	5,584
IE
Liability for Future Policy Benefit, Activity [Line Items]
Separate Accounts liabilities	3,796	3,772
IE | Individual Retirement
Liability for Future Policy Benefit, Activity [Line Items]
Separate Accounts liabilities	3,796	3,772	3,565	4,287
EG | Group Retirement
Liability for Future Policy Benefit, Activity [Line Items]
Separate Accounts liabilities	24,298	22,393	20,702	27,509
Momentum | Group Retirement
Liability for Future Policy Benefit, Activity [Line Items]
Separate Accounts liabilities	4,140	3,884	$ 3,698	$ 4,975
Others | Other
Liability for Future Policy Benefit, Activity [Line Items]
Separate Accounts liabilities	$ 5,961	$ 6,100