Financing Arrangements Debt Extinguishment Costs (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended		0 Months Ended		0 Months Ended	3 Months Ended	9 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2013	Mar. 31, 2012	Mar. 19, 2013 Loans payable [Member]	Mar. 31, 2013 Loans payable [Member]	Mar. 19, 2013 10.375% Senior Discount Notes	Mar. 31, 2012 10.375% Senior Discount Notes	Mar. 31, 2013 10.375% Senior Discount Notes	Jan. 26, 2011 10.375% Senior Discount Notes	Mar. 14, 2013 Term Loan Facility [Member] Loans payable [Member]
Extinguishment of Debt [Line Items]
Face amount of notes issued						$ 1,092.9				$ 747.2	$ 300.0
Debt extinguishment costs	1.3	0	1.3	38.9				38.9	1.3
Debt extinguishment costs, net of taxes								25.3	0.9
Debt extinguishment costs, net of taxes, per diliuted share									$ (0.01)
Payments of tender premiums on note redemption			(0.5)	(27.6)			0.5	(27.6)
Write-off of deferred loan costs							0.3
Loan costs related to modifications or exchanges of debt instruments							0.1
Third party costs related to refinancing					0.4
Additional deferred loan costs capitalized			2.8
Previously unamortized deferred loan costs	$ 5.0		$ 5.0