EMPLOYEE BENEFITS (Details - Components of net periodic benefit cost with respect to pensions and other postretirement benefits) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Pensions
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 7	$ 15	$ 15	$ 29
Interest cost	44	46	89	93
Expected return on assets	(76)	(70)	(154)	(140)
Amortization of prior service cost (credit)	0	0	1	0
Amortization of net (gain) loss	9	10	18	20
Net periodic benefit cost (credit)	(16)	1	(31)	2
Pensions | U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	2	7	4	13
Interest cost	40	42	81	85
Expected return on assets	(70)	(64)	(141)	(128)
Amortization of prior service cost (credit)	0	0	0	0
Amortization of net (gain) loss	7	7	14	14
Net periodic benefit cost (credit)	(21)	(8)	(42)	(16)
Pensions | Non U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	5	8	11	16
Interest cost	4	4	8	8
Expected return on assets	(6)	(6)	(13)	(12)
Amortization of prior service cost (credit)	0	0	1	0
Amortization of net (gain) loss	2	3	4	6
Net periodic benefit cost (credit)	5	9	11	18
Postretirement Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	2	1	2	2
Interest cost	2	2	4	5
Expected return on assets	0	0	0	0
Amortization of prior service cost (credit)	(2)	(1)	(2)	(1)
Amortization of net (gain) loss	0	0	0	0
Net periodic benefit cost (credit)	2	2	4	6
Postretirement Plans | U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	1	1	1	1
Interest cost	1	1	3	3
Expected return on assets	0	0	0	0
Amortization of prior service cost (credit)	(1)	(1)	(1)	(1)
Amortization of net (gain) loss	0	0	0	0
Net periodic benefit cost (credit)	1	1	3	3
Postretirement Plans | Non U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	1	0	1	1
Interest cost	1	1	1	2
Expected return on assets	0	0	0	0
Amortization of prior service cost (credit)	(1)	0	(1)	0
Amortization of net (gain) loss	0	0	0	0
Net periodic benefit cost (credit)	$ 1	$ 1	$ 1	$ 3