v3.26.1
Retirement Benefits (Unaudited) (Tables)
 6 Months Ended
Jun. 30, 2026
Retirement Benefits [Abstract]  
Components of net periodic benefit cost
The cost to the company of its pension and other postretirement benefit (OPB) plans is shown in the following table:
 Three Months Ended June 30Six Months Ended June 30
Pension
Benefits		OPBPension
Benefits		OPB
$ in millions20262025202620252026202520262025
Components of net periodic benefit cost (benefit)
Service cost$53 $54 $1 $1 $106 $108 $2 $2 
Interest cost399 402 14 15 798 805 29 31 
Expected return on plan assets(565)(539)(22)(21)(1,130)(1,079)(44)(42)
Amortization of prior service credit— — — — — — (1)(1)
Other— — — — — 7 — — 
Net periodic benefit cost (benefit)$(113)$(83)$(7)$(5)$(226)$(159)$(14)$(10)
Employer contributions to retirement plans
Contributions made by the company to its retirement plans are as follows:
 Three Months Ended June 30Six Months Ended June 30
$ in millions2026202520262025
Defined benefit pension plans$20 $24 $42 $42 
OPB plans10 10 21 20 
Defined contribution plans158 155 387 384