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Discontinued Operations, Assets Held for Sale and Divestitures (Schedule Of Book Values Of Assets Sold And Fair Value Of Assets Acquired) (Details) - USD ($)
$ in Millions
12 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2013
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]      
Operating income (loss)     $ 0.5
Loss (gain) on sale of discontinued operations     4.9
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent $ 0.0 $ 0.0 $ 5.4