INSURANCE LIABILITIES - Variable Annuity Contracts with GMDB and GMIB Features (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Net Amount at Risk by Product and Guarantee [Line Items]
NAR, gross	$ 0
Maximum
Net Amount at Risk by Product and Guarantee [Line Items]
NAR, net of amounts reinsured	1
GMDB
Net Amount at Risk by Product and Guarantee [Line Items]
General Account	45
Separate Accounts	696	$ 272
Total Account Values	741
NAR, gross	64
NAR, net of amounts reinsured	$ 64
Percentage of policyholders over age 70	14.80%
GMDB | Return of Premium
Net Amount at Risk by Product and Guarantee [Line Items]
General Account	$ 44
Separate Accounts	560
Total Account Values	604
NAR, gross	51
NAR, net of amounts reinsured	$ 51
Percentage of policyholders over age 70	14.30%
GMDB | Ratchet
Net Amount at Risk by Product and Guarantee [Line Items]
General Account	$ 1
Separate Accounts	136
Total Account Values	137
NAR, gross	13
NAR, net of amounts reinsured	$ 13
Percentage of policyholders over age 70	17.00%
GMDB | Roll-Up
Net Amount at Risk by Product and Guarantee [Line Items]
General Account	$ 0
Separate Accounts	0
Total Account Values	0
NAR, gross	0
NAR, net of amounts reinsured	$ 0
Percentage of policyholders over age 70	0.00%
GMDB | Combo
Net Amount at Risk by Product and Guarantee [Line Items]
General Account	$ 0
Separate Accounts	0
Total Account Values	0
NAR, gross	0
NAR, net of amounts reinsured	$ 0
Percentage of policyholders over age 70	0.00%
GMIB
Net Amount at Risk by Product and Guarantee [Line Items]
Separate Accounts	$ 679	$ 270
Immediate Variable Annuity | GMDB
Net Amount at Risk by Product and Guarantee [Line Items]
Average attained age of policyholders (in years)	61 years 7 months 6 days
Range of contractually specified interest rates (as a percent)	2.00%
Immediate Variable Annuity | GMDB | Return of Premium
Net Amount at Risk by Product and Guarantee [Line Items]
Average attained age of policyholders (in years)	61 years 3 months 18 days
Immediate Variable Annuity | GMDB | Ratchet
Net Amount at Risk by Product and Guarantee [Line Items]
Average attained age of policyholders (in years)	62 years 9 months 18 days
Immediate Variable Annuity | GMDB | Combo
Net Amount at Risk by Product and Guarantee [Line Items]
Range of contractually specified interest rates (as a percent)	2.00%
Immediate Variable Annuity | GMIB
Net Amount at Risk by Product and Guarantee [Line Items]
General Account	$ 0
Separate Accounts	679
Total Account Values	679
NAR, gross	0
NAR, net of amounts reinsured	$ 0
Average attained age of policyholders (in years)	64 years 7 months 6 days
Weighted average years remaining until annuitization (in years)	9 years 7 months 6 days
Range of contractually specified interest rates (as a percent)	2.00%
Immediate Variable Annuity | GMIB | Return of Premium
Net Amount at Risk by Product and Guarantee [Line Items]
General Account	$ 0
Separate Accounts	0
Total Account Values	0
NAR, gross	0
NAR, net of amounts reinsured	0
Immediate Variable Annuity | GMIB | Ratchet
Net Amount at Risk by Product and Guarantee [Line Items]
General Account	0
Separate Accounts	0
Total Account Values	0
NAR, gross	0
NAR, net of amounts reinsured	0
Immediate Variable Annuity | GMIB | Roll-Up
Net Amount at Risk by Product and Guarantee [Line Items]
General Account	0
Separate Accounts	679
Total Account Values	679
NAR, gross	0
NAR, net of amounts reinsured	$ 0
Average attained age of policyholders (in years)	64 years 7 months 6 days
Weighted average years remaining until annuitization (in years)	9 years 7 months 6 days
Immediate Variable Annuity | GMIB | Combo
Net Amount at Risk by Product and Guarantee [Line Items]
General Account	$ 0
Separate Accounts	0
Total Account Values	0
NAR, gross	0
NAR, net of amounts reinsured	$ 0
Range of contractually specified interest rates (as a percent)	2.00%