Condensed Consolidated Statements of Operations - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Income Statement [Abstract]
Net sales	$ 1,267.1	$ 1,173.9
Cost of sales	866.0	783.4
Gross profit	401.1	390.5
Selling, general and administrative expenses	188.9	194.1
Amortization expense of intangible assets	9.7	9.0
Restructuring charges	0.0	0.6
Operating profit	202.5	186.8
Interest expense, net	(43.1)	(44.4)
Other income, net	1.0	4.8
Earnings before income tax provision	160.4	147.2
Income tax provision	54.6	32.7
Net earnings from continuing operations	105.8	114.5
Gain on sale of discontinued operations, net of tax	4.3	12.1
Net earnings	$ 110.1	$ 126.6
Basic:
Continuing operations (in dollars per share)	$ 0.68	$ 0.74
Discontinued operations (in dollars per share)	0.03	0.08
Basic net earnings per common share (in dollars per share)	0.71	0.82
Diluted:
Continuing operations (in dollars per share)	0.68	0.74
Discontinued operations (in dollars per share)	0.03	0.08
Net earnings per common share - diluted (n dollars per share)	$ 0.71	$ 0.82
Weighted average number of common shares outstanding:
Basic (in shares)	154.1	154.5
Diluted (in shares)	155.4	154.8