v3.22.2.2
Pension and Postretirement Benefits (Tables)
 9 Months Ended
Sep. 30, 2022
Postemployment Benefits [Abstract]  
Schedule of Components of Net Periodic (Income) Cost Associated with Pension Plans and Postretirement Benefit Obligations
The following table sets forth the components of the net periodic cost (income) associated with our pension plans and our postretirement benefit obligations:
Pension plansPostretirement benefit obligations
Three months ended September 30, Nine months ended September 30, Three months ended September 30, Nine months ended September 30,
20222021202220212022202120222021
Components of net periodic cost (income):
Service cost$0.7 $1.3 $2.3 $3.9 $— $— $— $— 
Interest cost8.8 7.0 26.4 20.7 — — — — 
Expected return on plan assets(19.6)(20.8)(59.4)(62.5)— — — — 
Amortization of prior service cost (credit)— — — — (0.1)(0.1)(0.3)(0.3)
Amortization of actuarial loss (gain)— 0.6 — 1.7 — — — — 
Net periodic cost (income)$(10.1)$(11.9)$(30.7)$(36.2)$(0.1)$(0.1)$(0.3)$(0.3)