Valuation and Qualifying Accounts (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2012
Allowance for Doubtful Accounts [Member]
Valuation and Qualifying Accounts
Balance at Beginning of Year	$ 25.3	$ 30.8	$ 28.9
Additions Charged to Costs and Expenses	6.5	2.8	7.8
Additions Charged to Other Accounts	0	0	0
Deductions	9.6	8.3	5.9
Balance at End of Year	22.2	25.3	30.8
Valuation Allowance of Deferred Tax Assets [Member]
Valuation and Qualifying Accounts
Balance at Beginning of Year	28.3	31.8	32.8
Additions Charged to Costs and Expenses	4.0	2.3	1.0
Additions Charged to Other Accounts	0.5	0	0.5
Deductions	5.0	5.8	2.5
Balance at End of Year	$ 27.8	$ 28.3	$ 31.8