FAIR VALUE MEASUREMENTS - Amortized Cost Basis, Unrealized Gains and Losses and Fair Values of Investments in Available-for-sale Securities (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Debt Securities, Available-for-sale [Abstract]
Short-term cash investments	$ 6	$ 5
Debt Securities
Debt Securities, Available-for-sale [Abstract]
Cost Basis	301	294
Unrealized Gains	1	0
Unrealized Losses	(27)	(28)
Fair Value	$ 275	$ 266