Pension and Postretirement Health and Life Benefits (Tables)

3 Months Ended

Mar. 31, 2021

Defined Benefit Plan Disclosure [Line Items]

Schedule of Net Benefit Costs [Table Text Block]

The components of net periodic benefit (credits) for the defined benefit pension plans were as follows (in millions):

	Three Months Ended March 31,
	2021		2020
Service costs	$	0.8	$	0.9
Interest costs	4.5		6.1
Amortization of prior service costs (credits), net	(0.1)		(0.1)
Expected return on plan assets (gains)	(9.6)		(9.4)
Net periodic benefit (credits)	$	(4.4)	$	(2.5)

The components of net periodic benefit costs for the postretirement health and life benefit plans were as follows (in millions):

	Three Months Ended March 31,
	2021		2020
Interest costs	$	0.9	$	1.2
Net periodic benefit costs	$	0.9	$	1.2