SUPPLEMENTAL FINANCIAL INFORMATION - Allowance for Doubtful Accounts (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Allowance for Doubtful Accounts Receivable [Roll Forward]
Balance at beginning of period	$ 122	$ 129	$ 114	$ 122
Charged to costs and expenses	9	3	16	9
Write-offs	(5)	(1)	(6)	(2)
Currency translation adjustments	2	(6)	4	(4)
Balance at end of period	$ 128	$ 125	$ 128	$ 125