EMPLOYEE BENEFITS (Details - Components of net periodic benefit cost) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Pensions
Components of net periodic benefit cost:
Service cost	$ 7	$ 7	$ 13	$ 13
Interest cost	25	35	50	72
Expected return on assets	(66)	(64)	(133)	(129)
Amortization of prior service cost	1	1	2	1
Amortization of net loss	9	10	20	20
Net periodic benefit cost (credit)	(24)	(11)	(48)	(23)
Pensions | U.S.
Components of net periodic benefit cost:
Service cost	1	2	2	3
Interest cost	23	33	45	67
Expected return on assets	(61)	(59)	(122)	(119)
Amortization of prior service cost	0	0	0	0
Amortization of net loss	8	8	17	16
Net periodic benefit cost (credit)	(29)	(16)	(58)	(33)
Pensions | Non U.S. Plans
Components of net periodic benefit cost:
Service cost	6	5	11	10
Interest cost	2	2	5	5
Expected return on assets	(5)	(5)	(11)	(10)
Amortization of prior service cost	1	1	2	1
Amortization of net loss	1	2	3	4
Net periodic benefit cost (credit)	5	5	10	10
Postretirement Plans
Components of net periodic benefit cost:
Net benefit cost (credit)	$ 2	$ 2	$ 4	$ 4