Income Taxes (Deferred Tax Assets And Liabilities Included In Consolidated Financials) (Details) (USD $) In Millions, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
Deferred Tax Assets [Abstract]
Other receivables and current assets	$ 136.0	$ 115.3
Other noncurrent assets	56.6	53.1
Total Deferred Tax Assets	192.6	168.4
Deferred Tax Liabilities [Abstract]
Payables and accrued liabilities	3.2	3.9
Deferred income taxes	995.5	827.2
Total Deferred Tax Liabilities	998.7	831.1
Net Deferred Income Tax Liabilities	$ 806.1	$ 662.7