v3.26.1
Pension and Other Postretirement Benefits
 6 Months Ended
Jun. 30, 2026
Retirement Benefits [Abstract]  
Pension and Other Postretirement Plans Pension and Other Postretirement Benefits
The following summarizes the components of net periodic benefit costs:
Three Months Ended 
June 30,		Six Months Ended 
June 30,
(Millions of dollars)2026202520262025
Pension Benefits
Service cost$62 $57 $124 $112 
Interest cost38 35 77 72 
Expected return on plan assets(39)(35)(78)(72)
Amortization of prior service credit(2)(2)(4)(4)
Amortization of actuarial loss5 4 9 8 
Settlement loss— 1 — 1 
Net periodic pension benefit cost$64 $60 $128 $117 
Other Benefits
Service cost$5 $5 $10 $10 
Interest cost9 8 17 17 
Amortization of prior service credit(6)(5)(11)(11)
Net periodic other benefit cost$8 $8 $16 $16 
The components of net periodic benefit cost, other than the service cost component, are included in Net interest and other financial costs on the Consolidated Statements of Income.
During the six months ended June 30, 2026, we made no contributions to our funded pension plans. Benefit payments related to unfunded pension and other postretirement benefit plans were $8 million and $28 million, respectively, during the six months ended June 30, 2026.