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PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS
 3 Months Ended
Mar. 31, 2022
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Abstract]  
PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS
The following table summarizes the components of net periodic pension cost and the cost of other postretirement benefits for the periods presented:
Three Months Ended March 31,
United States
Pension Benefits		Foreign
Pension Benefits		Other Postretirement
Benefits
Millions of dollars202220212022202120222021
Service cost$1 $1 $1 $1 $— $— 
Interest cost20 19 4 4 2 1 
Expected return on plan assets$(36)$(39)$(9)$(9)$— $— 
Amortization:
Actuarial loss$15 $17 $3 $5 $— $— 
Prior service credit— — — — (12)(11)
Settlement and curtailment (gain) loss— — 1 — — — 
Net periodic benefit cost (credit)$— $(2)$— $1 $(10)$(10)
The following table summarizes the net periodic cost recognized in operating profit and interest and sundry (income) expense for the periods presented:
Three Months Ended March 31,
United States
Pension Benefits		Foreign
Pension Benefits		Other Postretirement
Benefits
Millions of dollars202220212022202120222021
Operating profit (loss)$1 $1 $1 $1 $— $— 
Interest and sundry (income) expense(1)(3)(1)— (10)(10)
Net periodic benefit cost$— $(2)$— $1 $(10)$(10)