Benefit Plans and Other Postretirement Benefits (Tables)

6 Months Ended

Jun. 30, 2020

Benefit Plans and Other Postretirement Benefits

Schedule of components of net pension expense

	Pension Benefits
Three Months Ended June 30:	2020		2019
Service cost	$	1.8	$	1.7
Interest cost		4.1		5.4
Expected return on plan assets		(9.3)		(9.2)
Amortization of prior service cost		0.6		0.4
Amortization of net actuarial losses		6.3		4.6
Net pension expense	$	3.5	$	2.9
Six Months Ended June 30:
Service cost	$	3.8	$	3.5
Interest cost		8.3		10.8
Expected return on plan assets		(18.6)		(18.5)
Amortization of prior service cost		1.1		0.8
Amortization of net actuarial losses		12.5		9.3
Net pension expense	$	7.1	$	5.9