FAIR VALUE MEASUREMENTS (Details) - USD ($) $ in Millions	Sep. 30, 2017	Dec. 31, 2016
Fair Value, Liabilities Measured on Recurring Basis, Financial Statement Captions [Line Items]
Noncontrolling interest puts	$ 16.5	$ 15.2
Fair market value of zero-coupon subordinated notes	18.8	79.3
Fair market value of senior notes	6,081.7	5,254.5
Cash Surrender Value, Fair Value Disclosure	60.6	53.6
Fair Value Liabilities Measured On Recurring Basis Deferred Compensation Liability	62.1	54.2
Contingent Consideration Classified as Equity, Fair Value Disclosure	16.0	16.0
Level 1 [Member]
Fair Value, Liabilities Measured on Recurring Basis, Financial Statement Captions [Line Items]
Noncontrolling interest puts	0.0	0.0
Cash Surrender Value, Fair Value Disclosure	0.0	0.0
Contingent Consideration Classified as Equity, Fair Value Disclosure	0.0	0.0
Fair Value Hedges, Net	0.0	0.0
Level 2 [Member]
Fair Value, Liabilities Measured on Recurring Basis, Financial Statement Captions [Line Items]
Noncontrolling interest puts	16.5	15.2
Cash Surrender Value, Fair Value Disclosure	60.6	53.6
Fair Value Liabilities Measured On Recurring Basis Deferred Compensation Liability	0.0	0.0
Contingent Consideration Classified as Equity, Fair Value Disclosure	0.0	0.0
Fair Value Hedges, Net	17.1	14.6
Level 3 [Member]
Fair Value, Liabilities Measured on Recurring Basis, Financial Statement Captions [Line Items]
Noncontrolling interest puts	0.0	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
Contingent Consideration Classified as Equity, Fair Value Disclosure	16.0	16.0
Fair Value Hedges, Net	$ 0.0	$ 0.0