Condensed Consolidated and Combined Statements of Income and Comprehensive Income (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Income Statement [Abstract]
Net sales	$ 509.3	$ 559.8	$ 1,477.4	$ 1,637.3
Cost of goods sold	312.5	335.7	925.0	991.1
Gross profit	196.8	224.1	552.4	646.2
Selling, general and administrative	107.4	126.2	334.8	359.4
Research and development	10.5	11.8	33.1	36.2
Impairment of goodwill and trade names	220.5	0.0	220.5	0.0
Operating income (loss)	(141.6)	86.1	(36.0)	250.6
Net interest expense	8.5	11.6	27.8	34.0
Other expense	0.7	0.9	2.2	2.8
Income (loss) before income taxes	(150.8)	73.6	(66.0)	213.8
Provision (benefit) for income taxes	(12.1)	13.7	28.3	36.6
Net income (loss)	(138.7)	59.9	(94.3)	177.2
Comprehensive income (loss), net of tax
Net income (loss)	(138.7)	59.9	(94.3)	177.2
Changes in cumulative translation adjustment	1.2	(8.0)	(15.7)	(1.8)
Changes in market value of derivative financial instruments, net of tax	(5.4)	2.3	6.8	8.8
Comprehensive income (loss)	$ (142.9)	$ 54.2	$ (103.2)	$ 184.2
Earnings (loss) per ordinary share
Basic pro forma earnings per ordinary share (in dollars per share)	$ (0.82)	$ 0.35	$ (0.56)	$ 1.03
Diluted pro forma earnings per ordinary share (in dollars per share)	$ (0.82)	$ 0.35	$ (0.56)	$ 1.02
Weighted average ordinary shares outstanding
Basic (shares)	170.0	169.1	169.9	172.3
Diluted (shares)	170.0	170.3	169.9	173.8
Cash dividends paid per ordinary share (in usd per share)	$ 0.175	$ 0.175	$ 0.525	$ 0.525