Pension and Other Benefits (Tables)

3 Months Ended

Mar. 31, 2020

Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Abstract]

Schedule of net pension and other benefit costs

The following table sets forth the components of net pension and other benefit costs for the three months ended March 31, 2020 and 2019 (in millions):

	Pension Benefits						Other Benefits
	2020			2019			2020			2019
Three Months Ended March 31,
Service cost	$	0.3		$	0.5		$	—		$	—
Interest cost	7.2			8.7			0.2			0.3
Expected return on plan assets	(8.5		)	(7.6		)	—			—
Amortization of prior service cost	—			—			(0.1		)	(0.2		)
Amortization of actuarial losses	2.4			2.2			—			—
NET PERIODIC BENEFIT COST	$	1.4		$	3.8		$	0.1		$	0.1