Commitments and Contingent Liabilities (Details Textuals) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2010
Commitments and Contingent Liabilities (Textuals) [Abstract]
Number of Superfund sites designated potentially responsible party at	13
Environmental receivables	$ 29.1
Asset retirement obligations in other current liabilities	3.4	4.7
Asset retirement obligations in other liabilities	22.4	23.9
Rental expense	115.0	111.5	106.0
Minimum future rental commitments under operating leases	377.6
Commitments from third parties under sublease agreements	1.4
Commitments from third parties under sublease agreements, annual	0.3
Superfund Sites [Member]
Site Contingency [Line Items]
Total reasonably possible contingency costs	14.3
Accrued environmental cost	8.0
Environmental sites other than Superfund or Federal Pacific Electric [Member]
Site Contingency [Line Items]
Total reasonably possible contingency costs	88.1
Accrued environmental cost	38.9
Federal Pacific Electric [Member]
Site Contingency [Line Items]
Total reasonably possible contingency costs	37.1
Accrued environmental cost	30.4
Dodge mechanical and Reliance Electric motors indemnification [ Member]
Site Contingency [Line Items]
Total reasonably possible contingency costs	13.5
Accrued potential future payments in other current liabilities	1.6	1.6
Accrued potential future payments in other liabilities	$ 8.8	$ 10.1