Financial Instruments (Schedule Of Outstanding Currency Price Risk Management Instruments) (Details) (Forward Exchange Contracts [Member], USD $) In Millions, unless otherwise specified	12 Months Ended
Sep. 30, 2011 years	Sep. 30, 2010 years
US$ Notional	$ 2,374.2	$ 2,627.6
Years Average Maturity	0.8	1.1
Cash Flow Hedges [Member]
US$ Notional	1,512.1	1,605.5
Years Average Maturity	0.4	0.5
Net Investment Hedges [Member]
US$ Notional	635.8	648.5
Years Average Maturity	2.0	3.0
Not Designated [Member]
US$ Notional	$ 226.3	$ 373.6
Years Average Maturity	0.1	0.2

Aggregate notional amount of all derivatives. The notional amount relates to a number of currency units, shares, bushels, pounds, or other units specified in a derivative instrument.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Notional Amount

-URI http://asc.fasb.org/extlink&oid=6519104

Name:	us-gaap_NotionalAmountOfDerivatives
Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant