Legal Proceedings and Other Contingencies (Details) $ in Millions	12 Months Ended
	Dec. 31, 2015 USD ($) case	Jan. 31, 2016 case	Sep. 30, 2015 case	Dec. 31, 2014 USD ($)	Oct. 02, 2013 Insurance_Provider	Dec. 14, 2012 Employee Corporations	Jun. 29, 2009 Car
Loss Contingencies [Line Items]
Accruals for losses related to probable litigation matters | $	$ 1.9
Number of sites for which the Company is involved in environmental remediation	18,000,000
Accruals for remediation and restoration | $	$ 13.2			$ 13.8
Viareggio [Member]
Loss Contingencies [Line Items]
Number of casualties							32
Number of subsidiaries						2
Number of Italian railway companies | Corporations						4
Number of employees						18
Number of insurers | Insurance_Provider					3
Asbestos - related cases pending against the company and its subsidiaries			80
Legal Fees | $	$ 12.2
Number of Maintenance and Supervisory employees | Employee						10.0
Court Proceedings			1
Percentage of coverage held by Liberty Mutual Insurance Europe Limited					25.00%
Asbestos Issue [Member]
Loss Contingencies [Line Items]
New cases filed number	5,000,000
Cases dismissed or settled	26,000,000
Pending Litigation [Member] | Asbestos Cases [Member] | Subsequent Event [Member]
Loss Contingencies [Line Items]
Asbestos - related cases pending against the company and its subsidiaries		79,000,000
Pending Litigation [Member] | Asbestos Cases [Member] | Subsequent Event [Member] | Jones Act claims [Member]
Loss Contingencies [Line Items]
Asbestos - related cases pending against the company and its subsidiaries		63,000,000
Punctured and Ignited [Member] | Viareggio [Member]
Loss Contingencies [Line Items]
number of railcars | Car							1
Overturned [Member] | Viareggio [Member]
Loss Contingencies [Line Items]
number of railcars | Car							5
Derailed [Member] | Viareggio [Member]
Loss Contingencies [Line Items]
number of railcars | Car							14