Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) - USD ($) shares in Millions, $ in Millions	3 Months Ended				6 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2019	Jun. 30, 2018
Income Statement [Abstract]
Net sales	$ 799.5		$ 780.6		$ 1,488.4	$ 1,513.2
Cost of goods sold	512.8		498.0		966.1	977.3
Gross profit	286.7		282.6		522.3	535.9
Selling, general and administrative expenses	132.2		140.9		279.5	282.7
Research and development expenses	20.7		19.1		41.4	37.9
Operating income	133.8		122.6		201.4	215.3
Other (income) expense:
(Gain) loss on sale of business	0.1		0.9		(3.4)	6.2
Net interest expense	9.4		10.1		16.7	23.6
Other Income	(12.9)		(4.2)		(12.3)	(3.8)
Income from continuing operations before income taxes	137.2		98.7		200.4	172.2
Provision for income taxes	22.1		20.8		32.9	35.9
Net income from continuing operations	115.1		77.9		167.5	136.3
(Loss) income from discontinued operations, net of tax	(0.8)		(36.4)		(1.9)	8.1
Net income	114.3	$ 51.3	41.5	$ 102.9	165.6	144.4
Comprehensive income, net of tax
Net income	114.3	$ 51.3	41.5	$ 102.9	165.6	144.4
Changes in cumulative translation adjustment	(0.9)		22.8		(2.5)	25.2
Changes in market value of derivative financial instruments, net of tax	(3.4)		4.1		0.9	0.3
Comprehensive income	$ 110.0		$ 68.4		$ 164.0	$ 169.9
Earnings (loss) Per Share, Basic
Continuing operations (in dollars per share)	$ 0.68		$ 0.44		$ 0.98	$ 0.77
Discontinued operations (in dollars per share)	(0.01)		(0.21)		(0.01)	0.04
Basic earnings (loss) per ordinary share (in dollars per share)	0.67		0.23		0.97	0.81
Earnings (loss) Per Share, Diluted
Continuing operations (in dollars per share)	0.68		0.44		0.98	0.76
Discontinued operations (in dollars per share)	(0.01)		(0.21)		(0.01)	0.04
Diluted earnings (loss) per ordinary share (in dollars per share)	$ 0.67		$ 0.23		$ 0.97	$ 0.80
Weighted average ordinary shares outstanding
Basic (shares)	169.8		176.9		170.6	178.1
Diluted (shares)	170.5		178.6		171.4	179.9