Supplemental Data (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2009
Supplemental Data
Repairs and maintenance costs	$ 90.3	$ 74.8	$ 60.4
Noncash investing and financing activities:
Treasury shares issued in connection with acquisition of business	415.5
Interest payments	21.4	18.3	19.8
Income tax payments (refunds), net	18.5	11.5	(13.7)
Foreign currency translation adjustment	(24.9)	(7.7)	(23.7)
Pension and post-retirement benefits, net of tax	(354.1)	(227.7)	(344.5)
Net unrealized losses on derivatives, net of tax	(32.8)	2.6	(2.4)	(17.3)
Unrealized losses on marketable securities, net of tax	(0.7)	(0.5)	(0.5)
Total accumulated other comprehensive Loss, net of tax	$ (412.5)	$ (233.3)	$ (371.1)