NEW ACCOUNTING PRONOUNCEMENTS (Details) - USD ($) $ in Millions		3 Months Ended
	Jan. 01, 2019	Mar. 31, 2019	Mar. 31, 2018
New accounting guidance, cumulative effect		$ (2.8)	$ (43.6)
Operating lease assets		570.9
Operating lease liabilities		$ 412.2
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