Receivables (Rollforward Of The Allowance For Doubtful Accounts For Notes Receivable) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Financing Receivable, Recorded Investment [Line Items]
Ending balance, Current	$ 5.4	$ 5.7
Ending balance, Long-term	8.8	9.4
Allowance For Doubtful Accounts, Current [Member]
Financing Receivable, Recorded Investment [Line Items]
Beginning balance, Current	5.7	9.4
Incremental provision	1.7	1.8
Recoveries	(1.1)	(3.7)
Chargeoffs	(0.9)	(1.8)
Ending balance, Current	5.4	5.7
Allowance For Doubtful Accounts, Noncurrent [Member]
Financing Receivable, Recorded Investment [Line Items]
Beginning balance, Long-term	9.4	16.1
Incremental provision	2.1	3.0
Recoveries	(1.5)	(6.8)
Chargeoffs	(1.2)	(2.9)
Ending balance, Long-term	$ 8.8	$ 9.4