Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Income Statement [Abstract]
Net sales	$ 780.6	$ 754.0	$ 1,513.2	$ 1,437.3
Cost of goods sold	498.0	480.4	977.3	940.0
Gross profit	282.6	273.6	535.9	497.3
Selling, general and administrative	140.9	126.7	282.7	269.4
Research and development	19.1	17.7	37.9	36.8
Operating income	122.6	129.2	215.3	191.1
Other (income) expense:
Loss on sale of business	0.9	0.0	6.2	0.0
Loss on early extinguishment of debt	17.1	101.4	17.1	101.4
Net interest expense	10.1	25.3	23.6	60.3
Other Income	(4.2)		(3.8)
Other (income) expense		0.9		2.1
Income from continuing operations before income taxes	98.7	1.6	172.2	27.3
Provision for income taxes	20.8	5.0	35.9	18.0
Net income (loss) from continuing operations	77.9	(3.4)	136.3	9.3
(Loss) income from discontinued operations, net of tax	(36.4)	66.5	8.1	141.6
Net income	41.5	263.7	144.4	351.5
Comprehensive income, net of tax
Net income	41.5	263.7	144.4	351.5
Changes in cumulative translation adjustment (inclusive of divestiture of business reclassified to gain from sale of $374.2 for the three and six months ended June 30, 2017)	22.8	392.6	25.2	468.3
Changes in market value of derivative financial instruments, net of tax	4.1	(0.9)	0.3	0.7
Comprehensive income	$ 68.4	$ 655.4	$ 169.9	$ 820.5
Earnings (loss) Per Share, Basic
Continuing operations (in dollars per share)	$ 0.44	$ (0.02)	$ 0.77	$ 0.05
Discontinued operations (in dollars per share)	(0.21)	1.47	0.04	1.88
Basic earnings (loss) per ordinary share (in dollars per share)	0.23	1.45	0.81	1.93
Earnings (loss) Per Share, Diluted
Continuing operations (in dollars per share)	0.44	(0.02)	0.76	0.05
Discontinued operations (in dollars per share)	(0.21)	1.45	0.04	1.86
Diluted earnings (loss) per ordinary share (in dollars per share)	$ 0.23	$ 1.43	$ 0.80	$ 1.91
Weighted average ordinary shares outstanding
Basic (shares)	176.9	181.7	178.1	181.9
Diluted (shares)	178.6	183.8	179.9	183.9
Cash dividends paid per ordinary share	$ 0.35	$ 0.345	$ 0.70	$ 0.69