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EMPLOYEE BENEFITS (Details - Components of net periodic benefit cost) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Pensions      
Pension expense and effect of change in pension expense due to change in discount rate or expected long-term rate of return      
Increase in expense due to decrease of 100 basis point in discount rate $ 11    
Increase in expense due to decrease of 100 basis point in expected long-term rate of return 56    
Decrease in expense due to increase of 100 basis point in discount rate 6    
Decrease in expense due to increase of 100 basis point in expected long-term rate of return 56    
Pensions | U.S.      
Components of net periodic benefit cost:      
Service cost 5 $ 5 $ 5
Interest cost 92 134 176
Expected return on assets (243) (239) (229)
Amortization of prior service cost (credit) 0 0 0
Amortization of net (gain) loss 33 33 35
Net periodic benefit cost (credit) (113) (67) (13)
Settlement (credit) charges 34 0 0
Net benefit cost (credit) (79) (67) (13)
Total recognized in Accumulated other comprehensive income (loss) 332 (57) 14
Total recognized in net periodic benefit cost and other comprehensive income (loss) 411 10 27
Pensions | Non U.S. Plans      
Components of net periodic benefit cost:      
Service cost 21 21 21
Interest cost 9 10 15
Expected return on assets (21) (21) (21)
Amortization of prior service cost (credit) 3 2 2
Amortization of net (gain) loss 7 8 5
Net periodic benefit cost (credit) 19 20 22
Settlement (credit) charges 1 3 (2)
Net benefit cost (credit) 20 23 20
Total recognized in Accumulated other comprehensive income (loss) 65 (1) (45)
Total recognized in net periodic benefit cost and other comprehensive income (loss) 45 (24) (65)
Postretirement Plans | U.S.      
Components of net periodic benefit cost:      
Service cost 1 1 1
Interest cost 3 5 6
Expected return on assets 0 0 0
Amortization of prior service cost (credit) 0 0 0
Amortization of net (gain) loss 0 0 (1)
Net periodic benefit cost (credit) 4 6 6
Settlement (credit) charges 0 0 0
Net benefit cost (credit) 4 6 6
Total recognized in Accumulated other comprehensive income (loss) 10 (17) (17)
Total recognized in net periodic benefit cost and other comprehensive income (loss) 6 (23) (23)
Postretirement Plans | Non U.S. Plans      
Components of net periodic benefit cost:      
Service cost 1 1 1
Interest cost 2 2 2
Expected return on assets 0 0 0
Amortization of prior service cost (credit) 0 (1) (2)
Amortization of net (gain) loss 1 0 0
Net periodic benefit cost (credit) 4 2 1
Settlement (credit) charges 0 0 0
Net benefit cost (credit) 4 2 1
Total recognized in Accumulated other comprehensive income (loss) 27 (9) (10)
Total recognized in net periodic benefit cost and other comprehensive income (loss) $ 23 $ (11) $ (11)