POLICY LIABILITIES - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended				6 Months Ended		12 Months Ended
	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Liability for Future Policy Benefit, by Product Segment [Line Items]
Effect of changes in discount rate assumptions during period, net of income taxes	$ (165)	$ (2,794)	$ 5,105	$ 4,224	$ (3,000)	$ 9,300	$ 13,700
Reserve remeasurement (gains) losses	(54)		(25)		$ (107)	$ (59)	$ (215)
Accumulated Other Comprehensive Income (Loss)
Liability for Future Policy Benefit, by Product Segment [Line Items]
Effect of changes in discount rate assumptions during period, net of income taxes	$ (165)	$ (2,794)	$ 5,105	$ 4,224