Pension and Other Benefits (Tables)

3 Months Ended

Mar. 31, 2022

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, 2022 and 2021 (in millions):

	Pension Benefits				Other Benefits
	2022		2021		2022		2021
Three Months Ended March 31,
Service cost	$	0.2	$	0.2	$	—	$	—
Interest cost	6.3		6.0		0.1		0.1
Expected return on plan assets	(8.2)		(9.1)		—		—
Amortization of prior service cost	0.1		—		—		—
Amortization of actuarial losses (gains)	2.6		2.7		(0.1)		—
Settlement and curtailment losses	—		—		—		—
NET PERIODIC BENEFIT COST	$	1.0	$	(0.2)	$	—	$	0.1