v3.26.3
Employee Benefit Plans (Tables)
9 Months Ended
Sep. 30, 2026
Retirement Benefits [Abstract]  
Schedule of Components of Net Periodic Benefit Costs
Pension Benefits Cost
Third QuartersNine Months
(Dollars in Millions)
2026202520262025
Service Cost Included in Labor and Fringe$6 $5 $17 $15 
Interest Cost25 27 75 82 
Expected Return on Plan Assets(38)(40)(112)(120)
Amortization of Net Loss6 6 18 17 
Total Included in Other Income - Net(7)(7)(19)(21)
Net Periodic Benefit Credit$(1)$(2)$(2)$(6)