FAIR VALUE MEASUREMENTS (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Fair Value, Liabilities Measured on Recurring Basis, Financial Statement Captions [Line Items]
Long-term debt, less current portion	$ 5,992.1	$ 2,682.7
Increase (Decrease) in Noncontrolling Interest Put	2.8
Noncontrolling interest puts	14.9	17.7
Fair market value of zero-coupon subordinated notes	177.1	155.6
Fair market value of senior notes	6,070.5	2,949.8
Fair Value Hedges, Net	18.5
Cash Surrender Value, Fair Value Disclosure	45.5	41.9
Investments, Fair Value Disclosure	0.0	1.0
Fair Value Liabilities Measured On Recurring Basis Deferred Compensation Liability	46.4	43.4
Fair Value, Inputs, Level 1 [Member]
Fair Value, Liabilities Measured on Recurring Basis, Financial Statement Captions [Line Items]
Noncontrolling interest puts	0.0	0.0
Fair Value Hedges, Net	0.0
Interest Rate Fair Value Hedge Asset at Fair Value	0.0
Cash Surrender Value, Fair Value Disclosure	0.0	0.0
Fair Value, Inputs, Level 2 [Member]
Fair Value, Liabilities Measured on Recurring Basis, Financial Statement Captions [Line Items]
Noncontrolling interest puts	14.9	17.7
Fair Value Hedges, Net	21.6
Interest Rate Fair Value Hedge Derivative at Fair Value, Net	18.5
Cash Surrender Value, Fair Value Disclosure	45.5	41.9
Fair Value Liabilities Measured On Recurring Basis Deferred Compensation Liability	0.0	0.0
Fair Value, Inputs, Level 3 [Member]
Fair Value, Liabilities Measured on Recurring Basis, Financial Statement Captions [Line Items]
Noncontrolling interest puts	0.0	0.0
Fair Value Hedges, Net	0.0
Interest Rate Fair Value Hedge Derivative at Fair Value, Net	0.0
Cash Surrender Value, Fair Value Disclosure	0.0	0.0
Fair Value Liabilities Measured On Recurring Basis Deferred Compensation Liability	0.0	$ 0.0
Contractually Determined Value [Member]
Fair Value, Liabilities Measured on Recurring Basis, Financial Statement Captions [Line Items]
Increase (Decrease) in Noncontrolling Interest Put	2.0
Foreign Currency Translation [Member]
Fair Value, Liabilities Measured on Recurring Basis, Financial Statement Captions [Line Items]
Increase (Decrease) in Noncontrolling Interest Put	$ 0.8