EMPLOYEE BENEFITS (Tables)

3 Months Ended

Mar. 31, 2023

Retirement Benefits [Abstract]

Schedule of net benefit cost (credit)

The following tables show the components of net periodic benefit cost (credit) for our benefit plans.

	Pension Benefits
	Three Months Ended March 31
(in millions)	2023		2022
Service cost	$	1.4	$	2.6
Interest cost	7.5		5.7
Expected return on plan assets	(12.9)		(13.8)
Amortization of net actuarial loss	4.2		4.4
Net periodic benefit cost (credit)	$	0.2	$	(1.1)

	OPEB Benefits
	Three Months Ended March 31
(in millions)	2023		2022
Service cost	$	0.7	$	1.1
Interest cost	1.5		1.1
Expected return on plan assets	(4.1)		(5.2)
Amortization of prior service credit	(2.5)		(2.6)
Amortization of net actuarial (gain) loss	0.2		(0.6)
Net periodic benefit credit	$	(4.2)	$	(6.2)