INSURANCE LIABILITIES - Variable Annuity Contracts with GMDB and GMIB Features (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 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	0
Separate Accounts	505	$ 272
Net Amount At Risk By Product And Guarantee, Account Value	505
NAR, gross	86
NAR, net of amounts reinsured	$ 86
Percentage of policyholders over age 70	13.10%
GMDB | Return of Premium
Net Amount at Risk by Product and Guarantee [Line Items]
General Account	$ 0
Separate Accounts	398
Net Amount At Risk By Product And Guarantee, Account Value	398
NAR, gross	68
NAR, net of amounts reinsured	$ 68
Percentage of policyholders over age 70	12.30%
GMDB | Ratchet
Net Amount at Risk by Product and Guarantee [Line Items]
General Account	$ 0
Separate Accounts	107
Net Amount At Risk By Product And Guarantee, Account Value	107
NAR, gross	18
NAR, net of amounts reinsured	$ 18
Percentage of policyholders over age 70	16.00%
GMDB | Roll-Up
Net Amount at Risk by Product and Guarantee [Line Items]
General Account	$ 0
Separate Accounts	0
Net Amount At Risk By Product And Guarantee, Account Value	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
Net Amount At Risk By Product And Guarantee, Account Value	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	$ 497	$ 270
Immediate Variable Annuity | GMDB
Net Amount at Risk by Product and Guarantee [Line Items]
Average attained age of policyholders (in years)	60 years 10 months 24 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)	60 years 6 months
Immediate Variable Annuity | GMDB | Ratchet
Net Amount at Risk by Product and Guarantee [Line Items]
Average attained age of policyholders (in years)	62 years 4 months 24 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	497
Net Amount At Risk By Product And Guarantee, Account Value	497
NAR, gross	0
NAR, net of amounts reinsured	$ 0
Average attained age of policyholders (in years)	64 years 6 months
Weighted average years remaining until annuitization (in years)	9 years 8 months 12 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
Net Amount At Risk By Product And Guarantee, Account Value	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
Net Amount At Risk By Product And Guarantee, Account Value	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	497
Net Amount At Risk By Product And Guarantee, Account Value	497
NAR, gross	0
NAR, net of amounts reinsured	$ 0
Average attained age of policyholders (in years)	64 years 6 months
Weighted average years remaining until annuitization (in years)	9 years 8 months 12 days
Immediate Variable Annuity | GMIB | Combo
Net Amount at Risk by Product and Guarantee [Line Items]
General Account	$ 0
Separate Accounts	0
Net Amount At Risk By Product And Guarantee, Account Value	0
NAR, gross	0
NAR, net of amounts reinsured	$ 0
Range of contractually specified interest rates (as a percent)	2.00%