SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Allowance for Credit Loss Roll-forward (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit loss at beginning of year	$ 117	$ 109	$ 95
Additional provisions for the year	16	9	19
Uncollectible accounts written off, net of recoveries	(19)	(1)	(5)
Allowance for credit loss at end of year	$ 114	$ 117	$ 109