CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income Statement [Abstract]
Revenues	$ 3,345.5	$ 2,786.0	$ 2,748.0
Operating costs and expenses
Cost of sales	2,156.2	1,770.9	1,758.3
Selling, general and administrative	721.0	605.9	610.6
Asbestos provision	0.0	0.0	192.4
Restructuring charges	7.2	13.0	0.0
Acquisition-related and integration charges	19.8	7.8	0.0
Total operating costs and expenses	2,904.2	2,397.6	2,561.3
Operating profit	441.3	388.4	186.7
Other income (expense):
Interest income	2.3	2.5	1.9
Interest expense	(50.9)	(36.1)	(36.5)
Miscellaneous income, net	18.7	12.7	12.0
Total other income (expense)	(29.9)	(20.9)	(22.6)
Income before income taxes	411.4	367.5	164.1
Provision for income taxes	75.9	195.0	40.3
Net income before allocation to noncontrolling interests	335.5	172.5	123.8
Less: Noncontrolling interest in subsidiaries’ (loss) earnings	(0.1)	0.7	1.0
Net income attributable to common shareholders	$ 335.6	$ 171.8	$ 122.8
Earnings per share - basic:
Earnings Per Share, Basic	$ 5.63	$ 2.89	$ 2.10
Weighted average basic shares outstanding	59.6	59.4	58.5
Earnings per share - diluted:
Earnings Per Share, Diluted	$ 5.50	$ 2.84	$ 2.07
Weighted average diluted shares outstanding	61.0	60.4	59.3