OTHER COMPREHENSIVE INCOME (Tables)

3 Months Ended

Mar. 31, 2024

Stockholders' Equity Note [Abstract]

Accumulated Other Comprehensive Income, Net of Tax

Amounts in accumulated other comprehensive income (loss) (AOCI), net of tax, are as follows:

in millions	March 31 2024		December 31 2023		March 31 2023
AOCI
Cash flow hedges	$	(19.0)	$	(19.4)	$	(20.6)
Pension and postretirement plans	(123.1)		(124.4)		(132.5)
Total	$	(142.1)	$	(143.8)	$	(153.1)

Changes in Accumulated Other Comprehensive Income, Net of Tax

Changes in AOCI, net of tax, for the three months ended March 31, 2024 are as follows:

in millions	Cash Flow Hedges		Pension and Postretirement Benefit Plans		Total
AOCI
Balances as of December 31, 2023	$	(19.4)	$	(124.4)	$	(143.8)
Amounts reclassified from AOCI	0.4		1.3		1.7
Net current period OCI changes	0.4		1.3		1.7
Balances as of March 31, 2024	$	(19.0)	$	(123.1)	$	(142.1)

Amounts Reclassified from Accumulated Other Comprehensive Income to Earnings

Amounts reclassified from AOCI to earnings are as follows:

	Three Months Ended March 31
in millions	2024		2023
Amortization of Cash Flow Hedge Losses
Interest expense	$	0.5	$	0.5
Benefit from income taxes	(0.1)		(0.1)
Total	$	0.4	$	0.4
Amortization of Pension and Postretirement Plan Actuarial Loss and Prior Service Cost
Other nonoperating expense	$	1.7	$	1.7
Benefit from income taxes	(0.4)		(0.4)
Total	$	1.3	$	1.3
Total reclassifications from AOCI to earnings	$	1.7	$	1.7