GOODWILL AND INTANGIBLE ASSETS (Components of identifiable intangible assets) (Details) - USD ($) $ in Millions	Sep. 30, 2018	Dec. 31, 2017
Finite-Lived Intangible Assets [Line Items]
Intangible Assets, Gross (Excluding Goodwill)	$ 5,545.2	$ 5,566.2
Accumulated Amortization	(1,554.3)	(1,400.1)
Intangible Assets, Net (Excluding Goodwill)	3,990.9	4,166.1
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible Assets, Gross (Excluding Goodwill)	4,115.7	4,118.1
Accumulated Amortization	(1,106.5)	(992.8)
Intangible Assets, Net (Excluding Goodwill)	3,009.2	3,125.3
Patents, Licenses And Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible Assets, Gross (Excluding Goodwill)	454.6	457.9
Accumulated Amortization	(207.8)	(188.6)
Intangible Assets, Net (Excluding Goodwill)	246.8	269.3
Noncompete Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible Assets, Gross (Excluding Goodwill)	75.8	75.8
Accumulated Amortization	(53.0)	(48.3)
Intangible Assets, Net (Excluding Goodwill)	22.8	27.5
Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible Assets, Gross (Excluding Goodwill)	405.0	407.9
Accumulated Amortization	(183.3)	(167.9)
Intangible Assets, Net (Excluding Goodwill)	221.7	240.0
Use Rights [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible Assets, Gross (Excluding Goodwill)	10.8	10.8
Accumulated Amortization	(3.7)	(2.5)
Intangible Assets, Net (Excluding Goodwill)	7.1	8.3
Canadian licenses [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible Assets, Gross (Excluding Goodwill)	483.3	495.7
Accumulated Amortization	0.0	0.0
Intangible Assets, Net (Excluding Goodwill)	$ 483.3	$ 495.7