EMPLOYEE BENEFITS (Details - Components of net periodic benefit cost with respect to pensions and other postretirement benefits) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Pensions
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 6	$ 2	$ 21	$ 31
Interest cost	45	45	134	138
Expected return on assets	(78)	(72)	(232)	(212)
Amortization of prior service cost (credit)	0	0	1	0
Amortization of net (gain) loss	9	9	27	29
Curtailment loss	0	(5)	0	(5)
Settlement charges	0	50	0	50
Net periodic benefit cost (credit)	(18)	29	(49)	31
Pensions | U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	0	(5)	4	8
Interest cost	41	41	122	126
Expected return on assets	(72)	(66)	(213)	(194)
Amortization of prior service cost (credit)	0	0	0	0
Amortization of net (gain) loss	7	6	21	20
Settlement charges		50		50
Net periodic benefit cost (credit)	(24)	26	(66)	10
Pensions | Non U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	6	7	17	23
Interest cost	4	4	12	12
Expected return on assets	(6)	(6)	(19)	(18)
Amortization of prior service cost (credit)	0	0	1	0
Amortization of net (gain) loss	2	3	6	9
Curtailment loss	0	(5)	0	(5)
Settlement charges	0	0	0	0
Net periodic benefit cost (credit)	6	3	17	21
Postretirement Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	0	1	2	3
Interest cost	2	3	6	8
Expected return on assets	0	0	0	0
Amortization of prior service cost (credit)	0	0	(2)	(1)
Amortization of net (gain) loss	0	0	0	0
Curtailment loss	0	0	0	0
Settlement charges	0	0	0	0
Net periodic benefit cost (credit)	2	4	6	10
Postretirement Plans | U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	0	0	1	1
Interest cost	1	2	4	5
Expected return on assets	0	0	0	0
Amortization of prior service cost (credit)	0	0	(1)	(1)
Amortization of net (gain) loss	0	0	0	0
Net periodic benefit cost (credit)	1	2	4	5
Postretirement Plans | Non U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	0	1	1	2
Interest cost	1	1	2	3
Expected return on assets	0	0	0	0
Amortization of prior service cost (credit)	0	0	(1)	0
Amortization of net (gain) loss	0	0	0	0
Curtailment loss	0	0	0	0
Settlement charges	0	0	0	0
Net periodic benefit cost (credit)	$ 1	$ 2	$ 2	$ 5