GOODWILL AND OTHER INTANGIBLE ASSETS - Changes in Carrying Amount of Intangible Assets (Detail) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Finite-lived and Indefinite-lived Intangible Assets [Roll Forward]
Beginning of period	$ 1,791.5	$ 1,862.0	$ 1,862.0
Intangible assets acquired during the year	9.0		28.2
Valuation adjustments for prior year acquisitions	0.6		7.9
Write-offs due to disposition and amounts reclassified to assets held for sale			(2.6)
Impairments during the year	(4.2)		(21.0)
Amortization during the year	(31.9)	$ (29.1)	(118.4)
Changes due to foreign currency fluctuations	6.2		35.4
End of period	$ 1,771.2		$ 1,791.5