Contingencies (Details) $ in Millions	6 Months Ended
	Jun. 30, 2018 USD ($) claim site	Jun. 30, 2017 USD ($) claim	Dec. 31, 2017 USD ($)
Accrual for environmental loss contingencies [Abstract]
Waste disposal sites with potential liability under the Comprehensive Environmental Response, Compensation and Liability Act | site	27
Accrual for indicated environmental liabilities	$ 7.0		$ 8.3
Timeframe most environmental liabilities will be paid out	5
Loss Contingency Accrual [Roll Forward]
Beginning asbestos liability	$ 828.2	$ 879.3
Indemnity and defense related costs	(28.3)	(26.6)
Ending asbestos liability	$ 799.9	$ 852.7
Asbestos Issue [Member]
Loss Contingency Claims [Roll Forward]
Beginning Claims | claim	9,225	9,385
New Claims Received | claim	1,020	1,116
Dismissed Claims | claim	(786)	(965)
Settled Claims | claim	(189)	(244)
Ending Claims | claim	9,270	9,292
Company paid in defense and indemnity in advance of insurers reimbursement	$ 556.9		528.7
Cash and notes received from insurers	270.5		270.0
Loss Contingency, Range of Possible Loss, Portion Not Accrued	100.0
Assets:
Non-current assets	386.4		386.4
Total insurance assets	386.4		386.4
Liabilities:
Accounts payable and accrued expenses	52.0		52.5
Other non-current liabilities	747.9		775.7
Total accrued liabilities	799.9		$ 828.2
Loss Contingency Accrual [Roll Forward]
Liability for Unpaid Claims and Claims Adjustment Expense, Claims Paid	$ 28.2	$ 26.5