INSURANCE LIABILITIES - Variable Annuity Contracts with GMDB and GMIB Features (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2022	Dec. 31, 2021
GMDB Ceded
Net Amount at Risk by Product and Guarantee [Line Items]
General Account	$ 16,947
Separate Accounts	78,518	$ 107,305
Total Account Values	95,465
NAR, gross	29,031
NAR, net of amounts reinsured	$ 17,221
Percentage of policyholders over age 70	21.20%
GMDB Ceded | Immediate Variable Annuity
Net Amount at Risk by Product and Guarantee [Line Items]
Average attained age of policyholders (in years)	55 years 4 months 24 days
GMDB Ceded | Immediate Variable Annuity | Minimum
Net Amount at Risk by Product and Guarantee [Line Items]
Range of contractually specified interest rates (as a percent)	3.00%
GMDB Ceded | Immediate Variable Annuity | Maximum
Net Amount at Risk by Product and Guarantee [Line Items]
Range of contractually specified interest rates (as a percent)	6.50%
GMDB Ceded | Return of Premium
Net Amount at Risk by Product and Guarantee [Line Items]
General Account	$ 16,657
Separate Accounts	44,481
Total Account Values	61,138
NAR, gross	1,108
NAR, net of amounts reinsured	$ 1,096
Percentage of policyholders over age 70	12.10%
GMDB Ceded | Return of Premium | Immediate Variable Annuity
Net Amount at Risk by Product and Guarantee [Line Items]
Average attained age of policyholders (in years)	51 years 7 months 6 days
GMDB Ceded | Ratchet
Net Amount at Risk by Product and Guarantee [Line Items]
General Account	$ 94
Separate Accounts	7,106
Total Account Values	7,200
NAR, gross	1,784
NAR, net of amounts reinsured	$ 1,612
Percentage of policyholders over age 70	52.50%
GMDB Ceded | Ratchet | Immediate Variable Annuity
Net Amount at Risk by Product and Guarantee [Line Items]
Average attained age of policyholders (in years)	69 years 8 months 12 days
GMDB Ceded | Roll-Up
Net Amount at Risk by Product and Guarantee [Line Items]
General Account	$ 48
Separate Accounts	2,384
Total Account Values	2,432
NAR, gross	1,975
NAR, net of amounts reinsured	$ 1,439
Percentage of policyholders over age 70	74.20%
GMDB Ceded | Roll-Up | Immediate Variable Annuity
Net Amount at Risk by Product and Guarantee [Line Items]
Average attained age of policyholders (in years)	76 years
GMDB Ceded | Roll-Up | Immediate Variable Annuity | Minimum
Net Amount at Risk by Product and Guarantee [Line Items]
Range of contractually specified interest rates (as a percent)	3.00%
GMDB Ceded | Roll-Up | Immediate Variable Annuity | Maximum
Net Amount at Risk by Product and Guarantee [Line Items]
Range of contractually specified interest rates (as a percent)	6.00%
GMDB Ceded | Combo
Net Amount at Risk by Product and Guarantee [Line Items]
General Account	$ 148
Separate Accounts	24,547
Total Account Values	24,695
NAR, gross	24,164
NAR, net of amounts reinsured	$ 13,074
Percentage of policyholders over age 70	60.00%
GMDB Ceded | Combo | Immediate Variable Annuity
Net Amount at Risk by Product and Guarantee [Line Items]
Average attained age of policyholders (in years)	71 years 7 months 6 days
GMDB Ceded | Combo | Immediate Variable Annuity | Minimum
Net Amount at Risk by Product and Guarantee [Line Items]
Range of contractually specified interest rates (as a percent)	3.00%
GMDB Ceded | Combo | Immediate Variable Annuity | Maximum
Net Amount at Risk by Product and Guarantee [Line Items]
Range of contractually specified interest rates (as a percent)	6.50%
GMIB
Net Amount at Risk by Product and Guarantee [Line Items]
Separate Accounts	$ 45,509	$ 63,006
GMIB | Immediate Variable Annuity
Net Amount at Risk by Product and Guarantee [Line Items]
General Account	207
Separate Accounts	45,509
Total Account Values	45,716
NAR, gross	8,783
NAR, net of amounts reinsured	$ 3,553
Average attained age of policyholders (in years)	69 years 1 month 6 days
Weighted average years remaining until annuitization (in years)	2 years 4 months 24 days
GMIB | Immediate Variable Annuity | Minimum
Net Amount at Risk by Product and Guarantee [Line Items]
Range of contractually specified interest rates (as a percent)	3.00%
GMIB | Immediate Variable Annuity | Maximum
Net Amount at Risk by Product and Guarantee [Line Items]
Range of contractually specified interest rates (as a percent)	6.50%
GMIB | Return of Premium | Immediate Variable Annuity
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
GMIB | Ratchet | Immediate Variable Annuity
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
GMIB | Roll-Up | Immediate Variable Annuity
Net Amount at Risk by Product and Guarantee [Line Items]
General Account	14
Separate Accounts	19,738
Total Account Values	19,752
NAR, gross	546
NAR, net of amounts reinsured	$ 176
Average attained age of policyholders (in years)	65 years 4 months 24 days
Weighted average years remaining until annuitization (in years)	5 years 6 months
GMIB | Roll-Up | Immediate Variable Annuity | Minimum
Net Amount at Risk by Product and Guarantee [Line Items]
Range of contractually specified interest rates (as a percent)	3.00%
GMIB | Roll-Up | Immediate Variable Annuity | Maximum
Net Amount at Risk by Product and Guarantee [Line Items]
Range of contractually specified interest rates (as a percent)	6.00%
GMIB | Combo | Immediate Variable Annuity
Net Amount at Risk by Product and Guarantee [Line Items]
General Account	$ 193
Separate Accounts	25,771
Total Account Values	25,964
NAR, gross	8,237
NAR, net of amounts reinsured	$ 3,377
Average attained age of policyholders (in years)	71 years 3 months 18 days
Weighted average years remaining until annuitization (in years)	6 months
GMIB | Combo | Immediate Variable Annuity | Minimum
Net Amount at Risk by Product and Guarantee [Line Items]
Range of contractually specified interest rates (as a percent)	3.00%
GMIB | Combo | Immediate Variable Annuity | Maximum
Net Amount at Risk by Product and Guarantee [Line Items]
Range of contractually specified interest rates (as a percent)	6.50%