LEASES - Components of lease expense (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Leases [Abstract]
Operating lease costs	$ 21	$ 18	$ 9
Variable lease costs	40	28	20
Short-term lease costs	0	7	7
Finance lease cost
Amortization of right-of-use assets	3	4	3
Interest on lease liabilities	1	1	1
Total lease cost, net	$ 65	$ 58	$ 40