Derivative Financial Instruments And Hedging (Effects Of Derivative Instruments On Statement Of Earnings And Other Comprehensive Income) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Cash Flow Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in OCI [Effective Portion]	$ 2.1	$ 8.2
Gain (Loss) Reclassified from Accumulated OCI into Earnings [Effective Portion]	(17.2)	35.3
Gain (Loss) Recognized in Earnings [Ineffective Portion and Amount Excluded from Effectiveness Testing]	0.4	2.5
Interest Rate Contracts [Member] | Cash Flow Hedging [Member] | Interest Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Reclassified from Accumulated OCI into Earnings [Effective Portion]	(1.5)	(1.5)
Interest Rate Contracts [Member] | Fair Value Hedging [Member] | Interest Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Earnings		0.2
Foreign Exchange Contracts [Member] | Cash Flow Hedging [Member] | Selling, General And Administrative Expenses [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in OCI [Effective Portion]	4.5	(1.2)
Gain (Loss) Reclassified from Accumulated OCI into Earnings [Effective Portion]	(0.2)	3.5
Foreign Exchange Contracts [Member] | Derivatives Not Designated As Hedging Instrument [Member] | Selling, General And Administrative Expenses [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Earnings	1.4
Commodity Contracts [Member] | Cash Flow Hedging [Member] | Cost Of Goods Sold [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in OCI [Effective Portion]	(2.4)	9.4
Gain (Loss) Reclassified from Accumulated OCI into Earnings [Effective Portion]	(15.5)	33.3
Gain (Loss) Recognized in Earnings [Ineffective Portion and Amount Excluded from Effectiveness Testing]	0.4	2.5
Commodity Contracts [Member] | Fair Value Hedging [Member] | Cost Of Goods Sold [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Earnings		(0.1)
Commodity Contracts [Member] | Derivatives Not Designated As Hedging Instrument [Member] | Cost Of Goods Sold [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Earnings	$ 0.2	$ (28.9)