BENEFIT PLANS (Tables)

3 Months Ended

Mar. 31, 2024

Retirement Benefits [Abstract]

Components of Net Periodic Benefit Cost

The following table sets forth the components of net periodic pension benefit cost:

	Three Months Ended March 31
in millions	2024		2023
Service cost	$	0.7	$	0.6
Interest cost	8.2		8.5
Expected return on plan assets	(7.1)		(6.9)
Amortization of prior service cost	0.3		0.4
Amortization of actuarial loss	1.2		1.4
Net periodic pension benefit cost	$	3.3	$	4.0
Pretax reclassifications from AOCI included in net periodic pension benefit cost	$	1.5	$	1.8

The following table sets forth the components of net periodic other postretirement benefit cost:

	Three Months Ended March 31
in millions	2024		2023
Service cost	$	0.6	$	0.5
Interest cost	0.5		0.5
Amortization of prior service cost	0.4		0.4
Amortization of actuarial gain	(0.2)		(0.4)
Net periodic postretirement benefit cost	$	1.3	$	1.0
Pretax reclassifications from AOCI included in net periodic postretirement benefit credit	$	0.2	$	0.0