FAIR VALUE MEASUREMENTS - Proceeds from the Sale of Investments in Available-for-sale Debt Securities (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Fair Value Disclosures [Abstract]
Sale Proceeds	$ 38	$ 48	$ 48
Realized Gains	0	8	0
Realized Losses	(3)	(13)	(3)
Interest and Dividend Income	$ 12	$ 11	$ 11