Pension and Other Benefits (Tables)

3 Months Ended

Mar. 31, 2019

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, 2019 and 2018 (in millions):

	Pension Benefits						Other Benefits
	2019			2018			2019			2018
Three Months Ended March 31,
Service cost	$	0.5		$	1.1		$	—		$	—
Interest cost	8.7			8.6			0.3			0.2
Expected return on plan assets	(7.6		)	(8.5		)	—			—
Amortization of prior service cost	—			—			(0.2		)	(0.2		)
Amortization of actuarial losses	2.2			2.8			—			—
NET PERIODIC BENEFIT COST	$	3.8		$	4.0		$	0.1		$	—