POLICYHOLDER ACCOUNT BALANCES - Reconciliation of Policyholders Account Balances to Policyholders' Account Balance Liability (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Liability for Future Policy Benefit, Activity [Line Items]
Balance (exclusive of Funding Agreements)	$ 66,397	$ 64,101
Funding Agreements	15,755	15,641
Balance, end of period	82,152	79,742
UL
Liability for Future Policy Benefit, Activity [Line Items]
Policyholder Account Balance	5,236	5,341
VUL
Liability for Future Policy Benefit, Activity [Line Items]
Policyholder Account Balance	4,115	4,253
GMxB Legacy
Liability for Future Policy Benefit, Activity [Line Items]
Policyholder Account Balance	644	688
GMxB Core
Liability for Future Policy Benefit, Activity [Line Items]
Policyholder Account Balance	12	42
SCS
Liability for Future Policy Benefit, Activity [Line Items]
Policyholder Account Balance	38,653	35,460
EQUI-VEST Individual
Liability for Future Policy Benefit, Activity [Line Items]
Policyholder Account Balance	2,432	2,652
EQUI-VEST Group
Liability for Future Policy Benefit, Activity [Line Items]
Policyholder Account Balance	11,729	12,046
Momentum
Liability for Future Policy Benefit, Activity [Line Items]
Policyholder Account Balance	629	703
Others
Liability for Future Policy Benefit, Activity [Line Items]
Policyholder Account Balance	$ 2,947	$ 2,916