INCOME TAX 5 (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Reconciliation of Unrecognized Tax Benefits [Abstract]
Balance at beginning of year	$ 947	$ 877	$ 765
Gross increases related to current period tax positions	370	94	96
Gross increases related to prior periods tax positions	82	153	88
Gross decreases related to prior periods tax positions	(201)	(91)	(33)
Decrease related to resolutions of audits with tax authorities	(40)	(76)	(3)
Expiration of the statue of limitations for the assessment of taxes	(50)	(54)	(10)
Foreign currency translation	(19)	44	(26)
Balance at end of year	$ 1,089	$ 947	$ 877