DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGING ACTIVITIES (Components of Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance			$ (339.3)
Other comprehensive income (loss), net of tax	$ 5.6	$ 14.7	6.0	$ (104.6)
Ending Balance	(333.3)		(333.3)
Cash Flow Hedge [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance			(339.3)	(370.0)
Other comprehensive loss before reclassifications			(24.5)	(134.3)
Amounts reclassified from AOCI			30.5	29.7
Other comprehensive income (loss), net of tax			6.0	(104.6)
Ending Balance	$ (333.3)	$ (474.6)	$ (333.3)	$ (474.6)