Disclosures About Derivative Instruments and Hedging Activities (Details 2) (USD $) In Millions	3 Months Ended		9 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Commodity Contracts [Member] | Derivatives Not Designated as Hedging Instruments [Member] | Cost of Sales [Member]
Effects of derivative instruments on the Condensed Consolidated Statements of Income and changes in AOCI and noncontrolling interest
Gain or (Loss) Recognized in Income	$ 0.2	$ 1.0	$ (0.4)	$ 1.4
Commodity Contracts [Member] | Derivatives Not Designated as Hedging Instruments [Member] | Operating Expenses/Other Income [Member]
Effects of derivative instruments on the Condensed Consolidated Statements of Income and changes in AOCI and noncontrolling interest
Gain or (Loss) Recognized in Income		(0.1)	0.3	0.1
Derivatives Not Designated as Hedging Instruments [Member]
Effects of derivative instruments on the Condensed Consolidated Statements of Income and changes in AOCI and noncontrolling interest
Gain or (Loss) Recognized in Income	0.2	0.9	(0.1)	1.5
Commodity Contracts [Member] | Cash Flow Hedges [Member]
Effects of derivative instruments on the Condensed Consolidated Statements of Income and changes in AOCI and noncontrolling interest
Derivative instruments gain loss recognized in other comprehensive income and noncontrolling interests effective portion	(1.4)	(14.6)	25.4	(30.1)
Commodity Contracts [Member] | Cash Flow Hedges [Member] | Cost of Sales [Member]
Effects of derivative instruments on the Condensed Consolidated Statements of Income and changes in AOCI and noncontrolling interest
Derivative instruments gain loss reclassified from other comprehensive income and noncontrolling interest into income effective portion	3.9	(7.7)	(19.1)	(14.1)
Foreign currency contracts [Member] | Cash Flow Hedges [Member]
Effects of derivative instruments on the Condensed Consolidated Statements of Income and changes in AOCI and noncontrolling interest
Derivative instruments gain loss recognized in other comprehensive income and noncontrolling interests effective portion	(1.9)	5.3	(3.4)	12.2
Foreign currency contracts [Member] | Cash Flow Hedges [Member] | Cost of Sales [Member]
Effects of derivative instruments on the Condensed Consolidated Statements of Income and changes in AOCI and noncontrolling interest
Derivative instruments gain loss reclassified from other comprehensive income and noncontrolling interest into income effective portion		0.1	(0.7)	0.7
Interest Rate Contracts [Member] | Cash Flow Hedges [Member]
Effects of derivative instruments on the Condensed Consolidated Statements of Income and changes in AOCI and noncontrolling interest
Derivative instruments gain loss recognized in other comprehensive income and noncontrolling interests effective portion	(13.2)	(6.3)	11.6	(7.2)
Interest Rate Contracts [Member] | Cash Flow Hedges [Member] | Interest Expense And Other Income
Effects of derivative instruments on the Condensed Consolidated Statements of Income and changes in AOCI and noncontrolling interest
Derivative instruments gain loss reclassified from other comprehensive income and noncontrolling interest into income effective portion	(2.4)	(3.9)	(9.6)	(24.4)
Cash Flow Hedges [Member]
Effects of derivative instruments on the Condensed Consolidated Statements of Income and changes in AOCI and noncontrolling interest
Derivative instruments gain loss recognized in other comprehensive income and noncontrolling interests effective portion	(16.5)	(15.6)	33.6	(25.1)
Derivative instruments gain loss reclassified from other comprehensive income and noncontrolling interest into income effective portion	1.5	(11.5)	(29.4)	(37.8)
Foreign currency contracts [Member] | Net Investment Hedges [Member]
Effects of derivative instruments on the Condensed Consolidated Statements of Income and changes in AOCI and noncontrolling interest
Derivative instruments gain loss recognized in other comprehensive income and noncontrolling interests effective portion	$ (0.5)	$ 6.1	$ (1.1)	$ 11.2