Pension and Other Benefits (Tables)

9 Months Ended

Sep. 30, 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 and nine months ended September 30, 2020 and 2019 (in millions):

	Pension Benefits				Other Benefits
	2020		2019		2020		2019
Three Months Ended September 30,
Service cost	$	0.3	$	0.5	$	—	$	0.1
Interest cost	7.2		8.7		0.2		0.2
Expected return on plan assets	(8.5)		(7.7)		—		—
Amortization of prior service cost	—		0.2		(0.1)		(0.3)
Amortization of actuarial losses	2.4		2.3		—		0.1
Settlement and curtailment losses	6.6		0.3		—		—
NET PERIODIC BENEFIT COST	$	8.0	$	4.3	$	0.1	$	0.1
Nine Months Ended September 30,
Service cost	$	0.8	$	1.6	$	—	$	0.1
Interest cost	21.6		26.0		0.6		0.8
Expected return on plan assets	(25.4)		(23.0)		—		—
Amortization of prior service cost	0.1		0.2		(0.3)		(0.7)
Amortization of actuarial losses	7.1		7.2		—		0.1
Settlement and curtailment losses	6.6		0.3		—		—
NET PERIODIC BENEFIT COST	$	10.8	$	12.3	$	0.3	$	0.3