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Retirement Programs (Tables)
3 Months Ended
Mar. 31, 2025
Retirement Benefits [Abstract]  
Schedule of Components of Net Pension and Postretirement Benefits
The components of net pension and postretirement benefits other than pensions (“OPEB”) costs for the three months ended March 31, 2025 and 2024 are shown below:
 Quarter Ended March 31,
(Millions of dollars)20252024
Amount recognized in Operating Profit
Service cost$20 $21 
Amount recognized in Net pension and OPEB cost (benefit), excluding service cost
Interest cost86 91 
Expected return on plan assets(134)(138)
Net amortization and deferral (gain) loss(8)(3)
(56)(50)
 Net periodic benefit cost (benefit)$(36)$(29)