Benefit Plans and Other Postretirement Benefits (Tables)

9 Months Ended

Sep. 30, 2019

Benefit Plans and Other Postretirement Benefits

Schedule of components of net pension expense

	Pension Benefits
Three Months Ended September 30:	2019		2018
Service cost	$	2.0	$	1.8
Interest cost		5.4		4.9
Expected return on plan assets		(9.2)		(9.6)
Amortization of prior service cost		0.4		0.6
Amortization of net actuarial losses		4.6		5.8
Net pension expense	$	3.2	$	3.5
Nine Months Ended September 30:
Service cost	$	5.5	$	5.6
Interest cost		16.2		14.7
Expected return on plan assets		(27.8)		(28.9)
Amortization of prior service cost		1.3		1.8
Amortization of net actuarial losses		13.9		17.5
Net pension expense	$	9.1	$	10.7