LEASES - Supplemental Cash Flow Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows for operating leases	$ 251	$ 303	$ 346
Operating cash flows for finance leases	5	16	19
Financing cash flows for finance leases	32	78	83
Right-of-use assets obtained in exchange for lease obligations:
Right-of-use assets acquired under operating leases	$ 82	$ 58	$ 327