Legal Proceedings and Other Contingencies (Details) € in Millions, $ in Millions	9 Months Ended
	Sep. 30, 2016 EUR (€) case	Sep. 30, 2016 USD ($) case	Dec. 14, 2012 Employee Corporations	Jun. 29, 2009 Car
Viareggio [Member]
Loss Contingencies [Line Items]
Number of casualties				32
Number of subsidiaries			2
Liability for Unpaid Claims and Claims Adjustment Expense, Incurred Claims | $		$ 1.0
Number of Italian railway companies | Corporations			4
Number of employees			18
Loss Contingency, Pending Claims, Number	55	55
Court Proceedings | case	1	1
Legal Fees | $		$ 19.4
percentage reimbursement legal insurance	0.00%	0.00%
reimbursed defense fee | $		$ 6.4
Derailed [Member] | Viareggio [Member]
Loss Contingencies [Line Items]
number of railcars | Car				14
Overturned [Member] | Viareggio [Member]
Loss Contingencies [Line Items]
number of railcars | Car				5
Punctured and Ignited [Member] | Viareggio [Member]
Loss Contingencies [Line Items]
number of railcars | Car				1
Threatened Litigation [Member] | Minimum [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages Paid, Value	€ 0.5	0.6
Threatened Litigation [Member] | B-737-Max [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages Paid, Value	€ 2.2	$ 2.0
acquittals [Member] | Viareggio [Member]
Loss Contingencies [Line Items]
Number of Maintenance and Supervisory employees | Employee			2
Incarceration [Member] | Viareggio [Member]
Loss Contingencies [Line Items]
Number of Maintenance and Supervisory employees | Employee			8