GOODWILL AND INTANGIBLE ASSETS (Components of identifiable intangible assets) (Details) - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]
Intangible Assets, Gross (Excluding Goodwill)	$ 5,546.4	$ 5,515.9
Accumulated Amortization	(1,661.5)	(1,604.8)
Intangible Assets, Net (Excluding Goodwill)	3,884.9	3,911.1
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible Assets, Gross (Excluding Goodwill)	4,135.5	4,119.4
Accumulated Amortization	(1,188.9)	(1,146.7)
Intangible Assets, Net (Excluding Goodwill)	2,946.6	2,972.7
Patents, Licenses And Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible Assets, Gross (Excluding Goodwill)	449.3	447.3
Accumulated Amortization	(217.4)	(211.2)
Intangible Assets, Net (Excluding Goodwill)	231.9	236.1
Noncompete Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible Assets, Gross (Excluding Goodwill)	78.1	76.8
Accumulated Amortization	(55.1)	(53.7)
Intangible Assets, Net (Excluding Goodwill)	23.0	23.1
Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible Assets, Gross (Excluding Goodwill)	405.1	404.0
Accumulated Amortization	(195.6)	(189.1)
Intangible Assets, Net (Excluding Goodwill)	209.5	214.9
Use Rights [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible Assets, Gross (Excluding Goodwill)	10.8	10.8
Accumulated Amortization	(4.5)	(4.1)
Intangible Assets, Net (Excluding Goodwill)	6.3	6.7
Canadian licenses [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible Assets, Gross (Excluding Goodwill)	467.6	457.6
Accumulated Amortization	0.0	0.0
Intangible Assets, Net (Excluding Goodwill)	$ 467.6	$ 457.6