DISPOSITIONS AND SPECIAL GAINS AND CHARGES - Discontinued Operations (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Discontinued Operations and Disposal Groups [Abstract]
Net sales	$ 0.0	$ 352.0	$ 590.6
Cost of sales	0.0	295.8	498.3
Gross profit	0.0	56.2	92.3
Selling, distribution and administrative expenses	2.1	36.5	74.7
Pre-tax book gain on sale of France business	0.0	(178.9)	0.0
Special charges, net	0.0	0.6	30.6
Operating (loss) income from discontinued operations	(2.1)	198.0	(13.0)
Foreign currency exchange (income) loss	0.0	(0.2)	0.8
Interest and other expense (income), net	0.0	0.0	0.3
Income (loss) of discontinued operations before income taxes	(2.1)	198.2	(14.1)
(Benefit) provision for income tax	(0.6)	23.0	11.0
Net income (loss) from discontinued operations	$ (1.5)	$ 175.2	$ (25.1)
Net income (loss) per share - basic (in dollars per share)	$ (0.04)	$ 4.69	$ (0.68)
Net income (loss) per share - diluted (in dollars per share)	$ (0.04)	$ 4.62	$ (0.67)