Receivables (Schedule Of The Allowance For Doubtful Accounts For Notes Receivable) (Details) (USD $) In Millions, unless otherwise specified	Sep. 30, 2012	Jun. 30, 2012
Accounts, Notes, Loans and Financing Receivable [Line Items]
Notes Receivable - Current	$ 90.0	$ 89.1
Notes Receivable - Long-term	146.4	145.5
Reserve - Current	5.7	5.4
Reserve - Long-term	9.3	8.8
Specific Reserve [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Notes Receivable - Current	0.4	0.4
Notes Receivable - Long-term	0.7	0.6
Reserve - Current	0.4	0.4
Reserve - Long-term	0.7	0.6
Non-Specific Reserve [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Notes Receivable - Current	89.6	88.7
Notes Receivable - Long-term	145.7	144.9
Reserve - Current	5.3	5.0
Reserve - Long-term	$ 8.6	$ 8.2