INVESTMENTS - Trading Securities (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Investments, Debt and Equity Securities [Abstract]
Net investment gains (losses) recognized during the period on securities held at the end of the period	$ (2)	$ 0
Net investment gains (losses) recognized on securities sold during the period	0	0
Unrealized and realized gains (losses) on trading securities	(2)	0
Interest and dividend income from trading securities	0	0
Net investment income (loss) from trading securities	$ (2)	$ 0