INCOME TAXES (Provision for Income Taxes Reconciles with U.S. Federal Statutory Rate) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Federal statutory rate	35.00%	35.00%	35.00%
Provision computed at federal statutory rate	$ 261.3	$ 254.9	$ 222.8
State and local taxes, net of federal tax benefit	13.3	17.2	5.2
Foreign	(41.9)	(40.3)	(21.8)
Tax Cuts and Jobs Act of 2017	(48.3)	0.0	0.0
Equity compensation	(26.7)	0.0	0.0
Tax reserves	2.5	11.9	0.9
Other	(11.6)	(10.6)	(5.3)
Provision for income taxes	$ 148.6	$ 233.1	$ 201.8
Effective income tax rate	19.90%	32.00%	31.70%