LEASES (Details 2) - USD ($) $ in Millions	Jun. 30, 2019	Dec. 31, 2018	Jun. 30, 2018
Balance Sheet Lease Location [Line Items]
Operating lease assets, net	$ 295.8	$ 0.0	$ 0.0
Total leased assets	301.4
Operating lease liabilities, current	71.4	0.0	0.0
Operating lease liabilities, noncurrent	229.3	$ 0.0	$ 0.0
Total lease liabilities	306.2
Finance Lease, Gross Value	9.4
Finance Lease, Accumulated Depreciation	3.8
Operating lease assets, net
Balance Sheet Lease Location [Line Items]
Operating lease assets, net	295.8
Property, plant and equipment, less accumulated depreciation
Balance Sheet Lease Location [Line Items]
Finance lease assets	5.6
Current operating lease liabilities
Balance Sheet Lease Location [Line Items]
Operating lease liabilities, current	71.4
Current installments of long-term debt
Balance Sheet Lease Location [Line Items]
Finance lease liabilities, current	1.1
Operating lease liabilities
Balance Sheet Lease Location [Line Items]
Operating lease liabilities, noncurrent	229.3
Long-term debt
Balance Sheet Lease Location [Line Items]
Finance lease liability, noncurrent	$ 4.4