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Venezuela (Details) In Millions, unless otherwise specified	12 Months Ended
Venezuela (Details) In Millions, unless otherwise specified	Sep. 30, 2011	Sep. 30, 2011 Venezuela Inflationary Accounting [Member] USD ($)	Sep. 30, 2010 Venezuela Inflationary Accounting [Member] USD ($)	Sep. 30, 2010 Venezuela Inflationary Accounting [Member] VEF	Jan. 08, 2010 Venezuela Inflationary Accounting [Member] VEF
Intercompany Foreign Currency Balance [Line Items]
Devaluation and other impacts		$ (1.8)	$ 18.3
Foreign Currency Transaction Gain (Loss), before Tax		1.8	(18.3)
Inflation Rate Threshold To Determine a Highly Inflationary Economy	100.00%
Net Assets Subject to Foreign Currency Translation			$ 39
Foreign Currency Exchange Rate, After Government Devaluation					4.30
Foreign Currency Exchange Rate, Translation				5.60

The aggregate foreign currency transaction gain (loss) (both realized and unrealized) included in determining net income for the reporting period. Excludes foreign currency transactions designated as hedges of net investment in a foreign entity and intercompany foreign currency transactions that are of a long-term nature, when the entities to the transaction are consolidated, combined, or accounted for by the equity method in the reporting enterprise's financial statements. For certain enterprises, primarily banks, that are dealers in foreign exchange, foreign currency transaction gains (losses) may be disclosed as dealer gains (losses).

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