INVESTMENTS - Trading Securities (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Investments, Debt and Equity Securities [Abstract]
Net investment gains (losses) recognized during the period on securities held at the end of the period	$ (8)	$ (47)	$ (53)	$ (264)
Net investment gains (losses) recognized on securities sold during the period	1	40	0	215
Unrealized and realized gains (losses) on trading securities	(7)	(7)	(53)	(49)
Interest and dividend income from trading securities	1	4	6	80
Net investment income (loss) from trading securities	$ (6)	$ (3)	$ (47)	$ 31