Property, Plant and Equipment

12 Months Ended

Jun. 30, 2012

Property, Plant and Equipment

Property, Plant and Equipment

6.Property, Plant and Equipment

	June 30,
($ in millions)	2012		2011
Land	$	16.6	$	8.5
Buildings and building equipment	301.3		267.6
Machinery and equipment	1,454.6		1,249.3
Construction in progress	97.6		38.4
Total at cost	1,870.1		1,563.8
Less: accumulated depreciation and amortization	945.5		900.9
Total property, plant, and equipment	$	924.6	$	662.9

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

Depreciation for the years ended June 30, 2012, 2011 and 2010 was $71.5 million, $59.2 million and $53.6 million, respectively.