v3.26.3
Pension and Other Postretirement Benefits
 9 Months Ended
Sep. 30, 2026
Retirement Benefits [Abstract]  
Retirement Benefits Pension and Other Post-retirement Benefits
We have defined-benefit pension plans and retiree medical plans that provide post-retirement health and life insurance benefits.

The components of net periodic pension and retiree medical (income) loss were as follows (in millions):
Three Months Ended September 30,Nine Months Ended September 30,
2026202520262025
Interest cost$7.4 $7.8 $22.2 $23.2 
Expected return on plan assets(8.2)(7.4)(24.4)(21.9)
Amortization of net gain(0.2)(0.2)(0.6)(0.6)
Net periodic pension and retiree medical (income) loss (1)
$(1.0)$0.2 $(2.8)$0.7 

(1)Included in Other, net in our Condensed Consolidated Statements of Operations.