GOODWILL AND INTANGIBLE ASSETS (Components of identifiable intangible assets) (Details) - USD ($) $ in Millions	Sep. 30, 2019	Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]
Intangible Assets, Gross (Excluding Goodwill)	$ 5,798.2	$ 5,515.9
Accumulated Amortization	(1,776.9)	(1,604.8)
Intangible Assets, Net (Excluding Goodwill)	4,021.3	3,911.1
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible Assets, Gross (Excluding Goodwill)	4,370.9	4,119.4
Accumulated Amortization	(1,274.5)	(1,146.7)
Intangible Assets, Net (Excluding Goodwill)	3,096.4	2,972.7
Patents, Licenses And Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible Assets, Gross (Excluding Goodwill)	450.2	447.3
Accumulated Amortization	(229.0)	(211.2)
Intangible Assets, Net (Excluding Goodwill)	221.2	236.1
Noncompete Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible Assets, Gross (Excluding Goodwill)	89.4	76.8
Accumulated Amortization	(58.4)	(53.7)
Intangible Assets, Net (Excluding Goodwill)	31.0	23.1
Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible Assets, Gross (Excluding Goodwill)	405.4	404.0
Accumulated Amortization	(209.8)	(189.1)
Intangible Assets, Net (Excluding Goodwill)	195.6	214.9
Use Rights [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible Assets, Gross (Excluding Goodwill)	11.1	10.8
Accumulated Amortization	(5.2)	(4.1)
Intangible Assets, Net (Excluding Goodwill)	5.9	6.7
Canadian licenses [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible Assets, Gross (Excluding Goodwill)	471.2	457.6
Accumulated Amortization	0.0	0.0
Intangible Assets, Net (Excluding Goodwill)	$ 471.2	$ 457.6