v3.26.1
Pension and Postretirement Benefit Plans (Tables)
 6 Months Ended
Jun. 30, 2026
Retirement Benefits [Abstract]  
Schedule of Net Periodic Benefit Cost (Benefit) Components of net periodic benefit cost and other supplemental information for the three and six months ended June 30, 2026 and 2025 follow:
Qualified and non-qualified pension benefitsPostretirement benefits
United StatesInternational
Three months ended June 30,
Net periodic benefit cost (benefit) (millions)202620252026202520262025
Operating expense
Service cost $25 $25 $9 $13 $5 $5 
Non-operating expense
Interest cost 100 109 50 46 16 19 
Expected return on plan assets (144)(142)(74)(66)(13)(14)
Amortization of prior service benefit— — — — (7)(3)
Amortization of net actuarial loss 63 69 2 2 4 3 
Total non-operating expense (benefit)19 36 (22)(18)— 5 
Total net periodic benefit cost (benefit) $44 $61 $(13)$(5)$5 $10 
Six months ended June 30,
202620252026202520262025
Operating expense
Service cost $49 $51 $20 $24 $9 $9 
Non-operating expense
Interest cost 200 217 100 92 32 38 
Expected return on plan assets (288)(284)(147)(131)(27)(28)
Amortization of prior service benefit— — — 1 (14)(4)
Amortization of net actuarial loss 127 138 4 4 8 8 
Total non-operating expense (benefit)39 71 (43)(34)(1)14 
Total net periodic benefit cost (benefit) $88 $122 $(23)$(10)$8 $23