Unaudited Condensed Consolidated Statements of Operations - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 26, 2020	Sep. 28, 2019	Sep. 26, 2020	Sep. 28, 2019
Income Statement [Abstract]
Net sales	$ 712.2	$ 746.6	$ 1,998.8	$ 2,361.4
Cost of sales	438.6	474.2	1,265.9	1,480.3
Gross profit	273.6	272.4	732.9	881.1
Selling, general and administrative expenses	195.4	191.9	571.7	590.4
Transaction-related expenses	5.4	1.0	5.2	0.7
Asset impairments	1.4	0.7	5.1	0.7
Restructuring expenses	7.3	0.3	26.4	3.9
Other operating expenses (income)	0.2	1.8	(1.2)	6.6
Operating income from continuing operations	63.9	76.7	125.7	278.8
Interest expense	38.3	37.2	109.3	114.5
Other income	(4.1)	(2.4)	(9.9)	(7.2)
Income from continuing operations before taxes	29.7	41.9	26.3	171.5
Income tax (benefit) expense	(16.0)	4.4	(31.5)	(497.8)
Net income from continuing operations	45.7	37.5	57.8	669.3
Loss on disposal of discontinued operations, net of tax, respectively, of $0, $0, $0 and $0	0.1	0.1	0.3	0.6
Net income	45.6	37.4	57.5	668.7
Less: non-controlling interests	3.7	1.9	2.4	(2.0)
Net income attributable to shareholders	$ 41.9	$ 35.5	$ 55.1	$ 670.7
Basic
Earnings per share from continuing operations (in usd per share)	$ 0.14	$ 0.12	$ 0.19	$ 2.31
Earnings per share from discontinued operations (in usd per share)	0	0	0	0
Earnings per share (in usd per share)	0.14	0.12	0.19	2.31
Diluted
Earnings per share from continuing operations (in usd per share)	0.14	0.12	0.19	2.30
Earnings per share from discontinued operations (in usd per share)	0	0	0	0
Earnings per share (in usd per share)	$ 0.14	$ 0.12	$ 0.19	$ 2.30