SUPPLEMENTAL GUARANTOR FINANCIAL INFORMATION (Statements of Operations)(Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended			86 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2017
Supplemental Guarantor Financial Information Statement of Operations [Line Items]
Sales	$ 1,619.9	$ 1,554.9	$ 1,526.5	$ 1,567.1	$ 1,385.7	$ 1,452.7	$ 1,364.0	$ 1,348.2	$ 6,268.4	$ 5,550.6	$ 2,854.4
Cost of goods sold	1,396.2	1,345.6	1,404.1	1,393.7	1,227.0	1,284.4	1,236.9	1,175.4	5,539.6	4,923.7	2,486.8
Selling and administration									350.7	323.2	186.3
Restructuring charges									37.6	112.9	2.7	$ 187.2
Acquisition-related costs									12.8	48.8	123.4
Other operating (loss) income									3.3	10.6	45.7
Operating (loss) income									(331.0)	(152.6)	(100.9)
Earnings of non-consolidated affiliates									1.8	1.7	1.7
Equity income in subsidiaries									0.0	0.0	0.0
Interest expense									217.4	191.9	97.0
Interest income									1.8	3.4	1.1
Income (loss) before taxes									117.2	(34.2)	6.7
Income tax provision (benefit)									(432.3)	(30.3)	8.1
Net income (loss)	$ 489.3	$ 52.7	$ (5.9)	$ 13.4	$ 17.5	$ 17.5	$ (1.0)	$ (37.9)	549.5	(3.9)	(1.4)
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent											(1.4)
Parent Guarantor
Supplemental Guarantor Financial Information Statement of Operations [Line Items]
Sales									1,330.3	1,321.3	1,215.4
Cost of goods sold									1,176.1	1,128.7	1,057.8
Selling and administration									137.9	138.1	110.0
Restructuring charges									1.7	0.8	0.7
Acquisition-related costs									12.8	47.4	117.9
Other operating (loss) income									(11.1)	(2.2)	(4.0)
Operating (loss) income									9.3	(4.1)	75.0
Earnings of non-consolidated affiliates									1.8	1.7	1.7
Equity income in subsidiaries									638.4	16.2	90.2
Interest expense									44.5	38.8	60.9
Interest income									6.3	4.7	3.1
Income (loss) before taxes									592.7	(12.1)	(40.9)
Income tax provision (benefit)									43.2	(8.2)	(39.5)
Net income (loss)									549.5	(3.9)	(1.4)
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent											(1.4)
Issuer
Supplemental Guarantor Financial Information Statement of Operations [Line Items]
Sales									0.0	0.0	0.0
Cost of goods sold									0.0	0.0	0.0
Selling and administration									0.0	0.0	0.0
Restructuring charges									0.0	0.0	0.0
Acquisition-related costs									0.0	0.0	0.0
Other operating (loss) income									0.0	0.0	0.0
Operating (loss) income									0.0	0.0	0.0
Earnings of non-consolidated affiliates									0.0	0.0	0.0
Equity income in subsidiaries									357.6	139.0	19.7
Interest expense									165.8	153.9	37.0
Interest income									0.0	0.0	0.0
Income (loss) before taxes									191.8	(14.9)	(17.3)
Income tax provision (benefit)									(310.0)	(57.6)	(12.7)
Net income (loss)									501.8	42.7	(4.6)
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent											(4.6)
Subsidiary Non-Guarantor
Supplemental Guarantor Financial Information Statement of Operations [Line Items]
Sales									5,344.9	4,720.2	2,002.5
Cost of goods sold									4,770.3	4,285.9	1,792.5
Selling and administration									212.8	185.1	76.3
Restructuring charges									35.9	112.1	2.0
Acquisition-related costs									0.0	1.4	5.5
Other operating (loss) income									14.4	12.8	49.7
Operating (loss) income									(340.3)	(148.5)	(175.9)
Earnings of non-consolidated affiliates									0.0	0.0	0.0
Equity income in subsidiaries									0.0	0.0	0.0
Interest expense									13.0	4.7	4.5
Interest income									1.4	4.2	3.4
Income (loss) before taxes									328.7	148.0	174.8
Income tax provision (benefit)									(165.5)	35.5	60.3
Net income (loss)									494.2	112.5	114.5
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent											114.5
Eliminations
Supplemental Guarantor Financial Information Statement of Operations [Line Items]
Sales									(406.8)	(490.9)	(363.5)
Cost of goods sold									(406.8)	(490.9)	(363.5)
Selling and administration									0.0	0.0	0.0
Restructuring charges									0.0	0.0	0.0
Acquisition-related costs									0.0	0.0	0.0
Other operating (loss) income									0.0	0.0	0.0
Operating (loss) income									0.0	0.0	0.0
Earnings of non-consolidated affiliates									0.0	0.0	0.0
Equity income in subsidiaries									(996.0)	(155.2)	(109.9)
Interest expense									(5.9)	(5.5)	(5.4)
Interest income									(5.9)	(5.5)	(5.4)
Income (loss) before taxes									(996.0)	(155.2)	(109.9)
Income tax provision (benefit)									0.0	0.0	0.0
Net income (loss)									$ (996.0)	$ (155.2)	(109.9)
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent											$ (109.9)