CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Income Statement [Abstract]
Net sales	$ 772.3	$ 855.8	$ 2,445.6	$ 2,505.8
Operating costs and expenses:
Cost of sales	494.4	544.8	1,557.4	1,611.6
Selling, general and administrative	166.8	179.8	532.6	546.3
Acquisition-related and integration charges	0.2	2.1	3.7	11.3
Restructuring charges	1.6	5.2	6.1	5.4
Operating profit	109.3	123.9	345.8	331.2
Other income (expense):
Interest income	0.6	0.5	1.9	1.7
Interest expense	(11.7)	(12.3)	(35.0)	(39.8)
Miscellaneous (expense) income, net	(4.5)	5.7	3.9	13.9
Nonoperating income (expense), total	(15.6)	(6.1)	(29.2)	(24.2)
Income before income taxes	93.7	117.8	316.6	307.0
Provision for income taxes	21.1	20.7	70.5	60.6
Net income before allocation to noncontrolling interests	72.6	97.1	246.1	246.4
Less: Noncontrolling interest in subsidiaries’ earnings	0.1	0.1	0.2	0.0
Net income attributable to common shareholders	$ 72.5	$ 97.0	$ 245.9	$ 246.4
Earnings per share:
Basic (in dollars per share)	$ 1.21	$ 1.62	$ 4.11	$ 4.13
Diluted (in dollars per share)	$ 1.19	$ 1.59	$ 4.05	$ 4.04
Average shares outstanding:
Average basic shares outstanding	60.0	59.7	59.9	59.7
Average diluted shares outstanding	60.8	61.1	60.8	61.1
Dividends per share (in dollars per share)	$ 0.39	$ 0.35	$ 1.17	$ 1.05