Financial Instruments (Schedule Of Gain/Loss Related To Derivative Instruments) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended				6 Months Ended
	Mar. 31, 2012		Mar. 31, 2011		Mar. 31, 2012		Mar. 31, 2011
Cash Flow Hedges [Member]
Derivative [Line Items]
Net gain (loss) recognized in OCI (effective portion)	$ (1.1)		$ 8.6		$ (10.4)		$ 2.4
Net (gain) loss reclassified from OCI to sales/cost of sales (effective portion)	0.2		6.3		0.5		5.5
Net (gain) loss reclassified from OCI to other income, net (effective portion)	1.8		(8.1)		10.3		(0.8)
Net (gain) loss reclassified from OCI to interest expense (effective portion)			0.3		1.0		0.6
Net (gain) loss reclassified from OCI to other income, net (ineffective portion)	0.1		(0.1)		0.2		0.1
Net Investment Hedges [Member]
Derivative [Line Items]
Net gain (loss) recognized in OCI	(51.1)		(90.0)		(4.5)		(68.7)
Not Designated [Member]
Derivative [Line Items]
Net gain (loss) recognized in net income (loss)	0.9	[1]	(0.9)	[1]	(1.2)	[1]	(0.7)	[1]
Fair Value Hedges [Member]
Derivative [Line Items]
Net gain (loss) recognized in net income (loss)	(4.0)	[2]	(4.8)	[2]	(4.9)	[2]	(21.2)	[2]
Forward Exchange Contracts [Member] | Cash Flow Hedges [Member]
Derivative [Line Items]
Net gain (loss) recognized in OCI (effective portion)	(2.5)		8.6		(15.3)		2.4
Net (gain) loss reclassified from OCI to sales/cost of sales (effective portion)	0.2		6.3		0.5		5.5
Net (gain) loss reclassified from OCI to other income, net (effective portion)	1.8		(8.1)		10.3		(0.8)
Net (gain) loss reclassified from OCI to interest expense (effective portion)	(0.3)				0.4
Net (gain) loss reclassified from OCI to other income, net (ineffective portion)	0.1		(0.1)		0.2		0.1
Forward Exchange Contracts [Member] | Net Investment Hedges [Member]
Derivative [Line Items]
Net gain (loss) recognized in OCI	(16.1)		(18.3)		(7.0)		(14.3)
Forward Exchange Contracts [Member] | Not Designated [Member]
Derivative [Line Items]
Net gain (loss) recognized in net income (loss)	0.9	[1]	(0.9)	[1]	(1.2)	[1]	(0.7)	[1]
Foreign Currency Debt [Member] | Net Investment Hedges [Member]
Derivative [Line Items]
Net gain (loss) recognized in OCI	(34.3)		(71.2)		3.0		(54.1)
Other Contracts [Member] | Cash Flow Hedges [Member]
Derivative [Line Items]
Net gain (loss) recognized in OCI (effective portion)	1.4	[3]			4.9	[3]
Net (gain) loss reclassified from OCI to interest expense (effective portion)	0.3	[3]	0.3	[3]	0.6	[3]	0.6	[3]
Other Contracts [Member] | Net Investment Hedges [Member]
Derivative [Line Items]
Net gain (loss) recognized in OCI	(0.7)	[3]	(0.5)	[3]	(0.5)	[3]	(0.3)	[3]
Other Contracts [Member] | Fair Value Hedges [Member]
Derivative [Line Items]
Net gain (loss) recognized in net income (loss)	$ (4.0)	[2],[3]	$ (4.8)	[2],[3]	$ (4.9)	[2],[3]	$ (21.2)	[2],[3]

[1] The impact of the non-designated hedges noted above was largely offset by gains and losses, respectively, resulting from the impact of changes in exchange rates on recognized assets and liabilities denominated in nonfunctional currencies

[2] The impact of fair value hedges noted above was largely offset by gains and losses resulting from the impact of changes in related interest rates on recognized outstanding debt.

[3] Other includes the impact on other comprehensive income (OCI) and earnings primarily related to interest rate swaps.