DAC AND OTHER DEFERRED ASSETS/LIABILITIES - Reconciliation of DAC (Details) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022	Dec. 31, 2020
Deferred Policy Acquisition Cost [Line Items]
Deferred policy acquisition costs	$ 4,817	$ 4,814	$ 4,098
Term | Protection Solutions
Deferred Policy Acquisition Cost [Line Items]
Deferred policy acquisition costs	356	362	403
UL | Protection Solutions
Deferred Policy Acquisition Cost [Line Items]
Deferred policy acquisition costs	21	20	5
VUL | Protection Solutions
Deferred Policy Acquisition Cost [Line Items]
Deferred policy acquisition costs	127	112	6
IUL | Protection Solutions
Deferred Policy Acquisition Cost [Line Items]
Deferred policy acquisition costs	0	0	0
GMxB Core | Individual Retirement
Deferred Policy Acquisition Cost [Line Items]
Deferred policy acquisition costs	1,561	1,585	1,646
EQUI-VEST Individual | Individual Retirement
Deferred Policy Acquisition Cost [Line Items]
Deferred policy acquisition costs	156	156	154
Investment Edge | Individual Retirement
Deferred Policy Acquisition Cost [Line Items]
Deferred policy acquisition costs	150	147	94
SCS | Individual Retirement
Deferred Policy Acquisition Cost [Line Items]
Deferred policy acquisition costs	1,279	1,266
EQUI-VEST Group | Group Retirement
Deferred Policy Acquisition Cost [Line Items]
Deferred policy acquisition costs	716	711	634
Momentum | Group Retirement
Deferred Policy Acquisition Cost [Line Items]
Deferred policy acquisition costs	87	89	101
GMxB Legacy | Legacy Segment
Deferred Policy Acquisition Cost [Line Items]
Deferred policy acquisition costs	214	127	$ 200
Closed Block | Corporate and Others
Deferred Policy Acquisition Cost [Line Items]
Deferred policy acquisition costs	124	213
Others | Corporate and Others
Deferred Policy Acquisition Cost [Line Items]
Deferred policy acquisition costs	$ 26	$ 26