NEW ACCOUNTING PRONOUNCEMENTS (Details) - USD ($) $ in Millions		6 Months Ended
	Jan. 01, 2019	Jun. 30, 2019	Jun. 30, 2018
New accounting guidance, cumulative effect		$ (2.8)	$ (43.6)
Operating lease assets		$ 549.8
Accounting Standards Update 2018-02
New accounting guidance, cumulative effect	$ 61.2
Accounting Standards Update Codification Topic 842 Leases
New accounting guidance, cumulative effect	(2.8)
Operating lease assets	572.2
Operating lease liabilities	$ 575.0