CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Income Statement [Abstract]
Net sales	$ 831.7	$ 799.1
Operating costs and expenses:
Cost of sales	526.6	521.2
Selling, general and administrative	187.4	177.6
Acquisition-related and integration charges	1.1	5.2
Restructuring charges	2.9	0.8
Operating profit	113.7	94.3
Other income (expense):
Interest income	0.6	0.8
Interest expense	(11.9)	(14.6)
Miscellaneous income	2.0	3.9
Nonoperating income (expense), total	(9.3)	(9.9)
Income before income taxes	104.4	84.4
Provision for income taxes	21.9	15.7
Net income before allocation to noncontrolling interests	82.5	68.7
Less: Noncontrolling interest in subsidiaries' earnings	0.1	0.0
Net income attributable to common shareholders	$ 82.4	$ 68.7
Earnings per share - basic: (a)
Net income attributable to common shareholders	$ 1.38	$ 1.15
Earnings per share - diluted: (a)
Net income attributable to common shareholders	$ 1.36	$ 1.13
Average basic shares outstanding	59.8	59.7
Average diluted shares outstanding	60.7	61.0
Dividends per share (in dollars per share)	$ 0.39	$ 0.35