Contingencies (Details) $ in Millions	12 Months Ended
	Dec. 31, 2017 USD ($) claim	Dec. 31, 2016 USD ($) claim	Dec. 31, 2015 USD ($) claim
Accrual for Environmental Loss Contingencies Disclosure [Abstract]
Waste disposal sites with potential liability under the Comprehensive Environmental Response, Compensation and Liability Act	27
Accrual for indicated environmental liabilities	$ 8.3	$ 6.3
Contingencies [Abstract]
Cash and notes received from insurers	270.0	270.0
Assets [Abstract]
Non-current assets	127.7	178.7
Liabilities [Abstract]
Liability for Asbestos and Environmental Claims, Gross	828.2	879.3	$ 969.8
Actuarial revaluation	0.0	(45.5)	$ 64.8
Indemnity and defense related costs	(51.1)	(45.0)
Liability for Unpaid Claims and Claims Adjustment Expense, Claims Paid	51.7	45.3
Company paid in defense and indemnity in advance of insurers reimbursement	528.7	477.7
Loss Contingency, Range of Possible Loss, Portion Not Accrued	100.0
Asbestos Issue [Member]
Assets [Abstract]
Non-current assets	386.4	386.4
Total insurance assets	386.4	386.4
Liabilities [Abstract]
Liability for Asbestos and Environmental Claims, Gross	$ 828.2	$ 879.3
Number of pending claims | claim	9,225	9,385	10,061
Loss Contingency, New Claims Filed, Number | claim	2,116	2,078
Loss Contingency, Claims Dismissed, Number | claim	(1,866)	(2,402)
Loss Contingency, Claims Settled, Number | claim	(410)	(352)
Accounts Payable and Accrued Liabilities [Member] | Asbestos Issue [Member]
Liabilities [Abstract]
Liability for Asbestos and Environmental Claims, Gross	$ 52.5	$ 51.7
Other non-current liabilities | Asbestos Issue [Member]
Liabilities [Abstract]
Liability for Asbestos and Environmental Claims, Gross	$ 775.7	$ 827.6