INCOME TAXES (Details 1) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Effective Tax Rate, Discrete Items, net	$ 0.8	$ 0.5
Effective Tax Rate, Discrete Items, net Percent	26.90%	27.90%
Statutory federal tax rate	21.00%	35.00%
U.S. Tax Cuts and Jobs Act Provisional Benefit			$ 437.9
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount			315.8
Effective Tax Rate, Unremitted Foreign Earnings in Excess of One-time Transition Tax			122.1
2017 Tax Act, Unremitted Foreign Earnings Benefit, Amount			162.6
2017 Tax Act, One-time Transition Tax, Amount	$ 0.3		40.5
Impact on the effective tax rate, if recognized	35.9	$ 41.4
Reconciliation of Unrecognized Tax Benefits [Roll Forward]
Unrecognized Tax Benefits	36.8	43.3	$ 36.3	$ 38.4
Increases for prior year tax positions	0.0	4.9
Decreases for prior year tax positions	0.0	(0.7)
Increases for current year tax positions	0.5	$ 0.7
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit	$ 5.7