REVENUE - Rollforward (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance at January 1	$ 8	$ 6
Provision for expected credit losses during the period	4	5
Write-offs charged against the allowance	(4)	(4)
Recoveries of amounts previously written off	1	$ 1
Balance at end of period	$ 9