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Pensions and Other Postretirement Benefits
 9 Months Ended
Sep. 30, 2025
Retirement Benefits [Abstract]  
Pensions and Other Postretirement Benefits Pensions and Other Postretirement Benefits
Three Months Ended September 30, 2025Three Months Ended September 30, 2024
Pension BenefitsGlobal OPEB PlansPension BenefitsGlobal OPEB Plans
U.S.Non-U.S.U.S.Non-U.S.
Service cost$42 $27 $2 $47 $40 $3 
Interest cost499 123 55 533 112 56 
Expected return on plan assets(648)(136)— (686)(116)— 
Amortization of prior service cost (credit)16 2 — 16 1 — 
Amortization of net actuarial (gains) losses2 10 (3)2 12 — 
Net periodic pension and OPEB (income) expense$(89)$26 $54 $(88)$49 $59 
Nine Months Ended September 30, 2025Nine Months Ended September 30, 2024
Pension BenefitsGlobal OPEB PlansPension BenefitsGlobal OPEB Plans
U.S.Non-U.S.U.S.Non-U.S.
Service cost$125 $137 $7 $141 $110 $8 
Interest cost1,496 358 164 1,599 373 170 
Expected return on plan assets(1,944)(401)— (2,056)(384)— 
Amortization of prior service cost (credit)48 6 — 46 3 (1)
Amortization of net actuarial (gains) losses7 30 (11)6 35 — 
Net periodic pension and OPEB (income) expense$(268)$130 $160 $(264)$137 $177 

The non-service cost components of net periodic pension and other postretirement benefits (OPEB) income presented in Interest income and other non-operating income, net are insignificant in the three months ended September 30, 2025 and 2024 and $186 million and $149 million in the nine months ended September 30, 2025 and 2024.