REVENUE - Activity in Uncollectable Accounts (Details) - USD ($) $ in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2023	Dec. 31, 2022
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	$ 137	$ 159
Provision for expected credit losses	3	59
Charged to other accounts	25	62
Write-offs	(80)	(143)
Ending balance	85	137
Deferred (refunded to customer) for recovery	$ (7)	$ 11