Reclassifications from Accumulated Other Comprehensive Loss (Tables)

12 Months Ended

Jun. 30, 2023

Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]

Schedule of Changes in AOCI by Component, Net of Tax

The changes in AOCI by component, net of tax, for the years ended June 30, 2023 and 2022 were as follows:

($ in millions) (a)	Cash flow hedging items		Pension and other postretirement benefit plan items		Foreign currency items		Total
Balance at June 30, 2022	$	5.5	$	(132.9)	$	(46.1)	$	(173.5)
Other comprehensive (loss) income before reclassifications	(6.7)		32.9		5.6		31.8
Amounts reclassified from AOCI (b)	(5.8)		4.5		—		(1.3)
Net current-period other comprehensive (loss) income	(12.5)		37.4		5.6		30.5
Balance at June 30, 2023	$	(7.0)	$	(95.5)	$	(40.5)	$	(143.0)

($ in millions) (a)	Cash flow hedging items		Pension and other postretirement benefit plan items		Foreign currency items		Total
Balance at June 30, 2021	$	6.9	$	(159.1)	$	(40.1)	$	(192.3)
Other comprehensive income (loss) before reclassifications	20.4		21.7		(6.0)		36.1
Amounts reclassified from AOCI (b)	(21.8)		4.5		—		(17.3)
Net current-period other comprehensive (loss) income	(1.4)		26.2		(6.0)		18.8
Balance at June 30, 2022	$	5.5	$	(132.9)	$	(46.1)	$	(173.5)

(a)                       All amounts are net of tax. Amounts in parentheses indicate debits.

(b)                       See separate table below for further details.

Schedule of Amounts Reclassified from AOCI

The following is a summary of amounts reclassified from AOCI for the years ended June 30, 2023 and 2022:

		Amount Reclassified from AOCI
		Years Ended June 30,
($ in millions) (a)	Location of gain (loss)	2023		2022
Details about AOCI Components
Cash flow hedging items:
Commodity contracts	Cost of sales	$	7.7	$	28.3
Forward interest rate swaps	Interest expense	—		0.4
	Total before tax	7.7		28.7
	Tax expense	(1.9)		(6.9)
	Net of tax	$	5.8	$	21.8
Amortization of pension and other postretirement benefit plan items:
Net actuarial loss, net	(b)	$	(7.7)	$	(7.6)
Prior service benefit, net	(b)	1.8		1.8
	Total before tax	(5.9)		(5.8)
	Tax benefit	1.4		1.3
	Net of tax	$	(4.5)	$	(4.5)

(a)                       Amounts in parentheses indicate debits to income/loss.

(b)                       These AOCI components are included in the computation of net periodic benefit cost (see Note 11 for additional details).