Benefit Plans and Other Postretirement Benefits (Tables)

3 Months Ended

Mar. 31, 2023

Benefit Plans and Other Postretirement Benefits

Schedule of components of net pension expense

	Three Months Ended March 31,
	2023		2022
Service cost	$	1.9	$	1.5
Interest cost		6.5		3.5
Expected return on plan assets		(7.3)		(7.5)
Amortization of prior service cost		0.4		0.4
Amortization of net actuarial losses		0.6		4.1
Net pension expense	$	2.1	$	2.0