LEASES - Supplemental Cash Flow Information related to Leases (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash outflows - payments on operating leases	$ (158)	$ (144)	$ (168)
Operating cash outflows - interest payments on finance leases	(2)	(1)	(1)
Financing cash outflows - payments on finance lease obligations	(11)	(8)	(6)
Lease assets obtained in exchange for new lease obligations, including leases acquired:
Operating leases	145	144	114
Finance leases	$ 14	$ 16	$ 24