RECEIVABLES PROVISION (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]
SEC Schedule, 12-09, Valuation Allowances and Reserves, Business Acquired	$ 116	$ 0	$ 0
Balance at beginning of year	278	252	174
Provision	3,725	2,739	2,090
Utilization	(3,705)	(2,707)	(2,015)
Other	(2)	(6)	3
Balance at end of year	$ 412	$ 278	$ 252