v3.26.1
Pension and Postretirement Benefit Plans (Tables)
3 Months Ended
Mar. 31, 2026
Retirement Benefits [Abstract]  
Schedule of Components of Net Periodic Cost and Other Amounts Recognized in Other Comprehensive Income
Components of net periodic benefit cost and other supplemental information for the three months ended March 31, 2026 and 2025 are as follows:
Three months ended March 31,
Qualified and Non-qualified Pension Benefits
United StatesInternationalPostretirement Benefits
(Millions)202620252026202520262025
Net periodic benefit cost (benefit)
Service cost - Operating$$$$$$
Interest cost23 24 
Expected return on plan assets(32)(31)(6)(6)(2)(2)
Amortization of net actuarial loss16 16 — — 
Non-operating— (1)
Total net periodic benefit cost (benefit)$13 $15 $$$$