CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income Statement [Abstract]
Net sales	$ 1,961,000,000.0	$ 1,878,600,000	$ 1,770,100,000
Cost of sales	1,123,400,000	1,064,800,000	992,800,000
Gross profit	837,600,000	813,800,000	777,300,000
Operating expenses:
Selling, technical, general and administrative	544,800,000	567,200,000	596,300,000
Research and development	44,300,000	46,400,000	45,000,000.0
Goodwill impairment	0	0	46,600,000
Total operating expenses	589,100,000	613,600,000	687,900,000
Operating profit	248,500,000	200,200,000	89,400,000
Other (expense) income:
Interest expense, net	(311,000,000.0)	(336,900,000)	(372,300,000)
Foreign exchange loss	(5,500,000)	(53,700,000)	(34,500,000)
Other income (expense), net	14,800,000	(70,000,000.0)	85,600,000
Total other expense	(301,700,000)	(460,600,000)	(321,200,000)
Loss before income taxes and non-controlling interests	(53,200,000)	(260,400,000)	(231,800,000)
Income tax (expense) benefit	(23,800,000)	68,600,000	41,300,000
Net loss from continuing operations	(77,000,000.0)	(191,800,000)	(190,500,000)
(Loss) income from discontinued operations, net of tax	(242,900,000)	(103,800,000)	113,800,000
Net loss	(319,900,000)	(295,600,000)	(76,700,000)
Net (income) loss attributable to the non-controlling interests	(4,500,000)	(600,000)	3,000,000.0
Net loss attributable to stockholders	(324,400,000)	(296,200,000)	(73,700,000)
Gain on amendment of Series B Convertible Preferred Stock	0	0	32,900,000
Net loss attributable to common stockholders	$ (324,400,000)	$ (296,200,000)	$ (40,800,000)
(Loss) earnings per share
Basic from continuing operations (in dollars per share)	$ (0.27)	$ (0.68)	$ (0.62)
Basic from discontinued operations (in dollars per share)	(0.86)	(0.36)	0.45
Basic attributable to common stockholders (in dollars per share)	(1.13)	(1.04)	(0.17)
Diluted from continuing operations (in dollars per share)	(0.27)	(0.68)	(1.06)
Diluted from discontinued operations (in dollars per share)	(0.86)	(0.36)	0.41
Diluted attributable to common stockholders (in dollars per share)	$ (1.13)	$ (1.04)	$ (0.65)
Weighted average common shares outstanding
Basic (in shares)	288.2	286.1	243.3
Diluted (in Shares)	288.2	286.1	272.3