CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Statement of Cash Flows [Abstract]
Proceeds received from issuance of long-term debt	$ 550.0	$ 0.0
Proceeds received from issuance of short-term debt	100.0	0.0
Repayment of long-term debt	(250.0)	0.0
Repayments of Short-term Debt	(100.0)	0.0
Business Combination, Integration Related Costs	5.2	0.0
Payments to Acquire Businesses, Net of Cash Acquired	(672.3)	0.0
Operating activities:
Net income attributable to common shareholders	68.7	63.1
Noncontrolling interests in subsidiaries' earnings	0.0	(0.2)
Net income before allocation to noncontrolling interests	68.7	63.3
Depreciation and amortization	27.9	17.4
Stock-based compensation expense	5.6	5.6
Defined benefit plans and postretirement (benefit) expense	(3.9)	(2.1)
Deferred income taxes	12.7	(0.1)
Cash used for working capital	29.5	62.8
Defined benefit plans and postretirement contributions	(4.5)	(2.1)
Payments for Environmental Liabilities	(2.3)	(2.0)
Payments for asbestos-related fees and costs, net of insurance recoveries	(2.9)	(14.7)
Other	2.4	1.0
Total provided by operating activities	74.2	3.5
Investing activities:
Capital expenditures	(27.5)	(9.6)
Proceeds from disposition of capital assets	0.3	0.0
Total used for investing activities	(699.5)	(9.6)
Financing activities:
Dividends paid	(20.9)	(19.6)
Exercise of stock options, net of shares acquired	4.5	12.8
Proceeds from Issuance of Commercial Paper	272.7	0.0
Proceeds received from credit facility	(5.4)	0.0
Total provided by financing activities	550.9	(6.8)
Effect of exchange rates on cash and cash equivalents	10.5	8.0
Increase (Decrease) in cash and cash equivalents	(63.9)	(4.9)
Cash and cash equivalents at beginning of period	706.2	509.7
Cash and cash equivalents at end of period	642.3	504.8
Detail of cash used for working capital:
Accounts receivable	50.1	(19.6)
Inventories	(12.6)	(12.2)
Other current assets	(3.9)	0.0
Accounts payable	(53.6)	(25.0)
Accrued liabilities	(6.8)	(22.9)
U.S. and foreign taxes on income	(2.7)	16.9
Total	(29.5)	(62.8)
Supplemental disclosure of cash flow information:
Interest paid	4.4	0.7
Income taxes paid	$ 5.6	$ 7.9