ALLOWANCE FOR CREDIT LOSSES - Schedule of Expected Credit Loss of Accounts Payable (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Jun. 30, 2025	Dec. 31, 2024	Jun. 30, 2024	Dec. 31, 2023
Contract with Customer, Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	$ 41	$ 38	$ 41	$ 38	$ 40	$ 40	$ 34	$ 32
Provision for credit losses	8	11	22	30
Payments to Coastal Bank	(7)	(8)	(22)	(26)
Recoveries	0	1	1	2
Ending balance	$ 41	$ 38	$ 41	$ 38