v3.26.1
Pension and Other Postretirement Benefits (Tables)
 6 Months Ended
Jun. 30, 2026
Retirement Benefits [Abstract]  
Schedule of Pension and Other Postretirement Benefit Costs
Pension and other postretirement benefit costs for the three and six months ended June 30, 2026 and 2025 were as follows:

Three Months EndedSix Months Ended
June 30,June 30,
PensionOther Postretirement BenefitsPensionOther Postretirement Benefits
In millions20262025202620252026202520262025
Components of net periodic benefit cost:
Service cost$7 $8 $1 $1 $14 $16 $2 $2 
Interest cost21 23 6 6 42 46 11 12 
Expected return on plan assets(31)(32)(7)(6)(63)(64)(14)(13)
Amortization of actuarial loss (gain)3 1 (2)(2)7 2 (4)(4)
Settlements— 1 — — — 1 — — 
Total net periodic benefit cost (income)$— $1 $(2)$(1)$— $1 $(5)$(3)