Restructuring Charges and Special Items (Details) (USD $) In Millions	12 Months Ended
	Sep. 30, 2010	Sep. 30, 2008
Summary of restructuring activities
Restructuring Accrual, Beginning	$ 60.8
Payments	(32.1)
Accrual Adjustments	(8.1)	4.0
Non-Cash Activity and Currency	(10.7)
Restructuring Accrual, Ending	9.9
Fiscal 2007 Manufacturing Globalization Action [Member] | Employee Severance Benefits [Member]
Summary of restructuring activities
Restructuring Accrual, Beginning	9.1
Payments	(3.5)
Accrual Adjustments	(3.1)
Non-Cash Activity and Currency	(0.4)
Restructuring Accrual, Ending	2.1
Fiscal 2008 Reduce Cost Structure for Anticipated Market Conditions Action [Member] | Employee Severance Benefits [Member]
Summary of restructuring activities
Restructuring Accrual, Beginning	5.0
Payments	(3.5)
Accrual Adjustments	(0.6)
Non-Cash Activity and Currency	0.1
Restructuring Accrual, Ending	1.0
Fiscal 2009 Reduce Cost Structure for Global Recession Action [Member] | Employee Severance Benefits [Member]
Summary of restructuring activities
Restructuring Accrual, Beginning	35.7
Payments	(23.1)
Accrual Adjustments	(4.4)
Non-Cash Activity and Currency	(1.4)
Restructuring Accrual, Ending	6.8
Fiscal 2009 Reduce Cost Structure for Global Recession Action [Member] | Asset Impairments [Member]
Summary of restructuring activities
Restructuring Accrual, Beginning	8.8
Non-Cash Activity and Currency	(8.8)
Restructuring Accrual, Ending	0
Fiscal 2009 Reduce Cost Structure for Global Recession Action [Member] | Lease Exit Costs [Member]
Summary of restructuring activities
Restructuring Accrual, Beginning	2.2
Payments	(2.0)
Non-Cash Activity and Currency	(0.2)
Restructuring Accrual, Ending	$ 0