Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) - USD ($) shares in Millions, $ in Millions	3 Months Ended						9 Months Ended
	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Sep. 30, 2019	Sep. 30, 2018
Income Statement [Abstract]
Net sales	$ 713.6			$ 711.4			$ 2,202.0	$ 2,224.6
Cost of goods sold	458.6			467.6			1,424.7	1,444.9
Gross profit	255.0			243.8			777.3	779.7
Selling, general and administrative expenses	126.4			116.3			405.9	399.0
Research and development expenses	19.8			19.1			61.2	57.0
Operating income	108.8			108.4			310.2	323.7
Other (income) expense:
(Gain) loss on sale of business	0.1			0.2			(3.3)	6.4
Loss on early extinguishment of debt	0.0			0.0			0.0	(17.1)
Net interest expense	6.9			4.3			23.6	27.9
Other Income	0.6			2.1			(11.7)	(1.7)
Income from continuing operations before income taxes	101.2			101.8			301.6	274.0
Provision for income taxes	9.9			10.6			42.8	46.5
Net income from continuing operations	91.3			91.2			258.8	227.5
Income (loss) from discontinued operations, net of tax	1.0			18.9			(0.9)	27.0
Net income	92.3	$ 114.3	$ 51.3	110.1	$ 41.5	$ 102.9	257.9	254.5
Comprehensive income, net of tax
Net income	92.3	$ 114.3	$ 51.3	110.1	$ 41.5	$ 102.9	257.9	254.5
Changes in cumulative translation adjustment	(25.8)			(2.1)			(28.3)	23.1
Changes in market value of derivative financial instruments, net of tax	21.9			(1.0)			22.8	(0.7)
Comprehensive income	$ 88.4			$ 107.0			$ 252.4	$ 276.9
Earnings (loss) Per Share, Basic
Continuing operations (in dollars per share)	$ 0.54			$ 0.52			$ 1.53	$ 1.29
Discontinued operations (in dollars per share)	0.01			0.11			(0.01)	0.15
Basic earnings (loss) per ordinary share (in dollars per share)	0.55			0.63			1.52	1.44
Earnings (loss) Per Share, Diluted
Continuing operations (in dollars per share)	0.54			0.52			1.52	1.28
Discontinued operations (in dollars per share)	0.01			0.11			(0.01)	0.15
Diluted earnings (loss) per ordinary share (in dollars per share)	$ 0.55			$ 0.63			$ 1.51	$ 1.43
Weighted average ordinary shares outstanding
Basic (shares)	168.1			174.3			169.7	176.8
Diluted (shares)	168.6			175.7			170.3	178.5