Pension and Postretirement Health and Life Benefits (Tables)

3 Months Ended

Mar. 31, 2020

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,
	2020			2019
Service costs	$	0.9		$	0.8
Interest costs	6.1			7.6
Amortization of prior service costs (credits), net	(0.1		)	—
Expected return on plan assets (gains)	(9.4		)	(9.1		)
Net periodic benefit (credits)	$	(2.5	)	$	(0.7	)

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,
	2020		2019
Interest costs	$	1.2	$	1.5
Net periodic benefit costs	$	1.2	$	1.5