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Supplemental Information (Other Receivables And Current Assets) (Details) (USD $)
In Millions
Sep. 30, 2011
Sep. 30, 2010
Supplemental Information [Abstract]  
Deferred tax assets$ 104.0$ 124.1
Derivative instruments30.842.6
Other receivables103.3120.7
Current capital lease receivables47.139.1
Other1.145.6
Other receivables and current assets$ 286.3$ 372.1