RECEIVABLES - Receivables Allowance (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of year	$ 697	$ 744	$ 663
Provision	9,158	7,476	7,257
Utilization	(9,186)	(7,521)	(7,170)
Other	0	(2)	(6)
Balance at end of year	669	697	744
Provision for expected credit loss	$ 14	$ 7	$ 4