XML 33 R24.htm IDEA: XBRL DOCUMENT v3.26.1
Pension and Other Postretirement Benefits (Tables)
3 Months Ended
Mar. 31, 2026
Retirement Benefits [Abstract]  
Schedule of Pension and Other Postretirement Benefit Costs
Pension and other postretirement benefit costs for the three months ended March 31, 2026 and 2025 were as follows:

Three Months Ended
March 31,
PensionOther Postretirement Benefits
In millions2026202520262025
Components of net periodic benefit cost:
Service cost$$$$
Interest cost21 23 
Expected return on plan assets(32)(32)(7)(7)
Amortization of actuarial loss (gain)(2)(2)
Total net periodic benefit cost (income)$— $— $(3)$(2)