POLICY LIABILITIES - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2023	Mar. 31, 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	$ (2,794)	$ 4,224	$ 13,700
Reserve remeasurement (gains) losses	(53)	(34)	$ (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	$ (2,794)	$ 4,224