Derivative Financial Instruments And Hedging (Balance Sheet Location Of Derivative Instruments In Fair Value) (Details) (USD $) In Millions, unless otherwise specified	Sep. 30, 2011	Sep. 30, 2010
Derivatives, Fair Value [Line Items]
Liability derivatives, fair value total	$ 53.1	$ 2.6
Assets derivatives, fair value total	0.3	16.7
Prepaid Expenses And Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Foreign exchange contracts		0.9
Commodity contracts	0.3	15.8
Commodity Contracts [Member] | Other Current Liabilities [Member]
Derivatives, Fair Value [Line Items]
Liability derivatives, fair value	49.0	2.6
Foreign Exchange Contracts [Member] | Other Current Liabilities [Member]
Derivatives, Fair Value [Line Items]
Liability derivatives, fair value	$ 4.1