Consolidated Statements of Operations and Comprehensive Income - USD ($) shares in Millions, $ in Millions		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Statement [Abstract]
Net sales	[1]	$ 3,017.8	$ 2,957.2	$ 2,965.1
Cost of goods sold		1,960.2	1,905.7	1,917.4
Gross profit		1,057.6	1,051.5	1,047.7
Selling, general and administrative		520.5	540.1	534.3
Research and development		75.7	78.9	76.7
Operating income		461.4	432.5	436.7
Other (income) expense
Loss (gain) on sale of businesses		0.1	(2.2)	7.3
Loss on early extinguishment of debt		0.0	0.0	17.1
Net interest expense		23.9	30.1	32.6
Other expense (income)		5.3	(2.9)	(0.1)
Income from continuing operations before income taxes		432.1	407.5	379.8
Provision for income taxes		75.0	45.8	58.1
Net income from continuing operations		357.1	361.7	321.7
Income (loss) from discontinued operations, net of tax		1.5	(6.0)	25.7
Net income		358.6	355.7	347.4
Comprehensive income, net of tax
Net income		358.6	355.7	347.4
Changes in cumulative translation adjustment		49.0	(15.3)	10.0
Changes in market value of derivative financial instruments, net of tax		(29.8)	17.4	4.8
Comprehensive income		$ 377.8	$ 357.8	$ 362.2
Earnings (loss) per ordinary share
Continuing operations (USD per share)		$ 2.14	$ 2.14	$ 1.83
Discontinued operations (USD per share)		0.01	(0.04)	0.15
Basic earnings per ordinary share (USD per share)		2.15	2.10	1.98
Continuing operations (USD per share)		2.13	2.12	1.81
Discontinued operations (USD per share)		0.01	(0.03)	0.15
Diluted earnings per ordinary share (USD per share)		$ 2.14	$ 2.09	$ 1.96
Weighted average ordinary shares outstanding
Basic (shares)		166.5	169.4	175.8
Diluted (shares)		167.4	170.4	177.3

[1] (1) One customer in the Consumer Solutions segment, Pool Corporation, represented approximately 15% of our consolidated net sales in 2020, 2019 and 2018.