Pension and Other Benefits (Tables)

9 Months Ended

Sep. 30, 2023

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, 2023 and 2022 (in millions):

	Pension Benefits				Other Benefits
	2023		2022		2023		2022
Three Months Ended September 30,
Service cost	$	0.2	$	0.2	$	—	$	—
Interest cost	8.8		5.4		0.2		0.2
Expected return on plan assets	(7.0)		(5.1)		—		—
Amortization of prior service cost	0.1		0.1		—		—
Amortization of actuarial losses (gains)	2.7		2.8		(0.2)		—
Settlement losses	—		1.7		—		—
NET PERIODIC BENEFIT COST	$	4.8	$	5.1	$	—	$	0.2
Nine Months Ended September 30,
Service cost	$	0.4	$	0.6	$	—	$	—
Interest cost	26.3		18.0		0.6		0.4
Expected return on plan assets	(21.0)		(21.5)		—		—
Amortization of prior service cost	0.3		0.3		—		—
Amortization of actuarial losses (gains)	7.9		8.0		(0.4)		(0.2)
Settlement losses	—		7.5		—		—
NET PERIODIC BENEFIT COST	$	13.9	$	12.9	$	0.2	$	0.2