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Pensions and Other Postretirement Benefits (Tables)
3 Months Ended
Mar. 31, 2021
Retirement Benefits [Abstract]  
Components of Net Periodic Pension and OPEB (Income) Expense
Three Months Ended March 31, 2021Three Months Ended March 31, 2020
Pension BenefitsGlobal OPEB PlansPension BenefitsGlobal OPEB Plans
U.S.Non-U.S.U.S.Non-U.S.
Service cost$65 $38 $$62 $29 $
Interest cost269 59 31 429 91 43 
Expected return on plan assets(795)(152)— (816)(170)— 
Amortization of prior service cost (credit)(1)(2)(1)(2)
Amortization of net actuarial losses54 25 42 19 
Net periodic pension and OPEB (income) expense$(455)$— $58 $(322)$(6)$65