CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Statement [Abstract]
Net sales	$ 1,835.9	$ 1,961.0	$ 1,878.6
Cost of sales	1,047.6	1,123.4	1,064.8
Gross profit	788.3	837.6	813.8
Operating expenses:
Selling, technical, general and administrative	497.0	544.8	567.2
Research and development	42.2	44.3	46.4
Total operating expenses	539.2	589.1	613.6
Operating profit	249.1	248.5	200.2
Other (expense) income:
Interest expense, net	(90.7)	(311.0)	(336.9)
Foreign exchange gain (loss)	28.7	(5.5)	(53.7)
Other (expense) income, net	(46.2)	14.8	(70.0)
Total other expense	(108.2)	(301.7)	(460.6)
Income (loss) before income taxes and non-controlling interests	140.9	(53.2)	(260.4)
Income tax (expense) benefit	(61.3)	(23.8)	68.6
Net income (loss) from continuing operations	79.6	(77.0)	(191.8)
Income (loss) from discontinued operations, net of tax	13.3	(242.9)	(103.8)
Net income (loss)	92.9	(319.9)	(295.6)
Net income attributable to the non-controlling interests	(0.7)	(4.5)	(0.6)
Net loss attributable to common stockholders	$ 92.2	$ (324.4)	$ (296.2)
Earnings (loss) per share
Basic from continuing operations (in dollars per share)	$ 0.31	$ (0.27)	$ (0.68)
Basic from discontinued operations (in dollars per share)	0.05	(0.86)	(0.36)
Basic attributable to common stockholders (in dollars per share)	0.36	(1.13)	(1.04)
Diluted from continuing operations (in dollars per share)	0.30	(0.27)	(0.68)
Diluted from discontinued operations (in dollars per share)	0.05	(0.86)	(0.36)
Diluted attributable to common stockholders (in dollars per share)	$ 0.35	$ (1.13)	$ (1.04)
Weighted average common shares outstanding
Basic (in shares)	257.6	288.2	286.1
Diluted (in Shares)	260.1	288.2	286.1