Financial Instruments (Schedule of Outstanding Currency Price Risk Management Instruments) (Details) (Forward Exchange Contracts [Member], USD $) In Millions	Jun. 30, 2011	Sep. 30, 2010
US$ Notional	$ 2,347.3	$ 2,627.6
Years Average Maturity	.9	1.1
Cash Flow Hedges [Member]
US$ Notional	1,358.3	1,605.5
Years Average Maturity	.4	.5
Net Investment Hedges [Member]
US$ Notional	696.4	648.5
Years Average Maturity	2.2	3.0
Hedges Not Designated [Member]
US$ Notional	$ 292.6	$ 373.6
Years Average Maturity	.1	.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