Other Long-Term Liabilities (Details) $ in Millions	Sep. 30, 2015 USD ($) ManufacturingSite	Sep. 30, 2014 USD ($)
Other Long-Term Liabilities (Textual) [Abstract]
Amount by which unaccrued maximum of estimated range exceeds minimum	$ 90.5
Accruals for extended environmental-related activities	126.4	$ 92.8
Estimated costs of current investigation and remediation activities included in other accruals	$ 16.9	$ 15.4
Number of manufacturing sites accounting for the majority of the accrual for environmental-related activities | ManufacturingSite	2
Accruals for environmental-related activities of two sites	$ 91.8
Percentage of accrual for environmental-related activities related to two sites	64.10%
Amount of unaccrued maximum related to two sites	$ 60.1
Percentage of aggregate unaccrued maximum related to two sites	66.50%