Property, Plant and Equipment, net (Tables)

12 Months Ended

Jun. 30, 2021

Property, Plant and Equipment [Abstract]

Summary of property, plant and equipment, net

Property, plant and equipment, net consisted of the following components at June 30, 2021 and 2020:

	June 30,
($ in millions)	2021		2020
Land	$	36.5	$	35.1
Buildings and building equipment	537.6		538.5
Machinery and equipment	2,234.6		2,226.4
Capitalized software	221.2		91.7
Construction in progress	120.0		235.9
Total at cost	3,149.9		3,127.6
Less: accumulated depreciation and amortization	1,692.4		1,629.5
Total property, plant, and equipment, net	$	1,457.5	$	1,498.1

The estimated useful lives of depreciable assets are as follows:

Asset Category	Useful Life (in Years)
Buildings and building equipment	10 – 45
Machinery and equipment	3 – 30
Capitalized software	3 – 12