POLICY LIABILITIES - Weighted-Average Interest Rates of Future Policy Benefits (Details)	Dec. 31, 2023	Dec. 31, 2022
Payout annuities
Liability for Future Policy Benefit, Activity [Line Items]
Weighted-average interest rates, original discount rate	3.37%	2.76%
Weighted-average interest rates, current discount rate	4.95%	5.04%
Weighted-average liability duration (years, current rates)	8 years 6 months 29 days	8 years 4 months 20 days
Other
Liability for Future Policy Benefit, Activity [Line Items]
Weighted-average interest rates, original discount rate	2.57%	2.50%
Weighted-average interest rates, current discount rate	4.95%	5.03%
Weighted-average liability duration (years, current rates)	9 years 10 days	9 years 3 months 25 days