POLICYHOLDER ACCOUNT BALANCES - Reconciliation of Separate Account Liabilities to Separate Account Liability balance (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Liability for Future Policy Benefit, Activity [Line Items]
Separate Accounts liabilities	$ 134,711	$ 127,251
Protection Solutions \| Variable Universal Life
Liability for Future Policy Benefit, Activity [Line Items]
Separate Accounts liabilities	18,176	15,821	$ 13,187	$ 16,405
Legacy Segment \| GMxB Legacy
Liability for Future Policy Benefit, Activity [Line Items]
Separate Accounts liabilities	33,199	33,794	32,616	44,912
Individual Retirement \| GMxB Core
Liability for Future Policy Benefit, Activity [Line Items]
Separate Accounts liabilities	30,411	29,829	27,772	35,288
Individual Retirement \| EQUI-VEST Individual
Liability for Future Policy Benefit, Activity [Line Items]
Separate Accounts liabilities	4,782	4,582	4,161	5,583
Individual Retirement \| Investment Edge
Liability for Future Policy Benefit, Activity [Line Items]
Separate Accounts liabilities	4,885	4,275	3,798	4,287
Group Retirement \| EQUI-VEST Group
Liability for Future Policy Benefit, Activity [Line Items]
Separate Accounts liabilities	30,546	26,959	22,393	27,509
Group Retirement \| Momentum
Liability for Future Policy Benefit, Activity [Line Items]
Separate Accounts liabilities	4,813	4,421	$ 3,885	$ 4,975
Other
Liability for Future Policy Benefit, Activity [Line Items]
Separate Accounts liabilities	$ 7,899	$ 7,570