Annual report pursuant to Section 13 and 15(d)

PENSION AND OTHER POSTRETIREMENT BENEFITS (Details 2) - Components of Net Periodic Pension Cost

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PENSION AND OTHER POSTRETIREMENT BENEFITS (Details 2) - Components of Net Periodic Pension Cost - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Pension Plan      
Changes in benefit obligations and plan assets recognized in other comprehensive income      
Amortization of prior service cost $ (3) $ (3) $ 0
Recognized actuarial (loss) gain (75) (28) (62)
Incurred actuarial loss (gain) 85 101 91
Foreign exchange translation adjustments 19 4 (5)
Total recognized in other comprehensive loss 26 74 24
Total recognized in net periodic pension cost and other comprehensive loss 128 139 110
Other Postretirement Benefit Plan      
Components of Net Periodic Benefit Cost      
Interest cost 7 10 11
Recognized net actuarial loss (gain) (1) 0  
Net periodic pension cost 6 10 11
Changes in benefit obligations and plan assets recognized in other comprehensive income      
Recognized actuarial (loss) gain 1    
Incurred actuarial loss (gain) 14 (1) (51)
Total recognized in other comprehensive loss 15 (1) (51)
Total recognized in net periodic pension cost and other comprehensive loss 21 9 (40)
UNITED STATES      
Pension and other postretirement benefits      
Defined Benefit Plan, Accumulated Benefit Obligation 3,091 2,894  
Plans with accumulated benefit obligation in excess of plan assets:      
ABO 417 379  
Plans with projected benefit obligation in excess of plan assets:      
PBO 448 401  
Components of Net Periodic Benefit Cost      
Service cost 133 116 120
Interest cost 95 108 98
Expected return on plan assets (195) (189) (196)
Amortization of prior service cost 1 1 1
Recognized net actuarial loss (gain) 41 17 33
Net periodic pension cost 75 53 56
Changes in benefit obligations and plan assets recognized in other comprehensive income      
Foreign exchange translation adjustments 0 0  
UNITED KINGDOM      
Pension and other postretirement benefits      
Defined Benefit Plan, Accumulated Benefit Obligation 1,954 1,756  
Components of Net Periodic Benefit Cost      
Service cost 29 26 29
Interest cost 36 43 41
Expected return on plan assets (74) (70) (69)
Amortization of prior service cost 2 2 0
Recognized net actuarial loss (gain) 34 11 29
Net periodic pension cost 27 12 $ 30
Changes in benefit obligations and plan assets recognized in other comprehensive income      
Foreign exchange translation adjustments $ 83 $ 69