INVESTMENTS - Trading Securities (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Investments, Debt and Equity Securities [Abstract]
Net investment gains (losses) recognized during the period on securities held at the end of the period	$ 0	$ (2)
Unrealized and realized gains (losses) on trading securities	0	(2)
Net investment income (loss) from trading securities	$ 0	$ (2)