Other Long-Term Liabilities (Details) $ in Millions	Mar. 31, 2017 USD ($) ManufacturingSite	Mar. 31, 2016 USD ($)
Other Long-Term Liabilities (Textual) [Abstract]
Amount by which unaccrued maximum of estimated range exceeds minimum	$ 86.6
Accruals for extended environmental-related activities	161.6	$ 143.4
Estimated costs of current investigation and remediation activities included in other accruals	$ 20.0	$ 22.5
Number of manufacturing sites accounting for the majority of the accrual for environmental-related activities | ManufacturingSite	3
Accruals for environmental-related activities of three sites	$ 151.4
Percentage of accrual for environmental-related activities related to three sites	83.40%
Amount of unaccrued maximum related to three sites	$ 70.5
Percentage of aggregate unaccrued maximum related to three sites	81.40%