Global Cost Reduction Plan (Table Of Changes For The Global Cost Reduction Plan) (Details) (USD $) In Millions	3 Months Ended		12 Months Ended
	Jun. 30, 2009	Dec. 31, 2008	Sep. 30, 2011	Sep. 30, 2010		Sep. 30, 2009
Restructuring reserve	$ 124.0	$ 174.2
Environmental charge				1.5	[1]	(16.0)	[1]
Non cash items				(2.7)		(99.9)
Cash expenditures			(1.9)	(103.0)		(76.2)
Currency translation adjustment				(5.3)		4.3
Adjustment to charge				1.0
Restructuring reserve, ending balance				1.9		110.4
Severance And Other Benefits [Member]
Restructuring reserve	90.0	120.0
Environmental charge					[1]		[1]
Non cash items				(2.8)	[2]	(33.8)	[2]
Cash expenditures			(1.9)	(102.8)		(75.3)
Currency translation adjustment				(5.3)		4.3
Adjustment to charge				7.6
Restructuring reserve, ending balance				1.9		105.2
Asset Impairments/Other Costs [Member]
Restructuring reserve	34.0	54.2
Environmental charge				1.5	[1]	(16.0)	[1]
Non cash items				0.1		(66.1)
Cash expenditures				(0.2)		(0.9)
Currency translation adjustment
Adjustment to charge				(6.6)
Restructuring reserve, ending balance						$ 5.2

[1] Reflected in accrual for environmental obligations. See Note 16, Commitments and Contingencies.

[2] Primarily pension-related costs, which are reflected in the accrual for pension benefits.