FAIR VALUE MEASUREMENTS (Details) - USD ($) $ in Millions	Jun. 30, 2017	Dec. 31, 2016
Fair Value, Liabilities Measured on Recurring Basis, Financial Statement Captions [Line Items]
Noncontrolling interest puts	$ 15.9	$ 15.2
Fair market value of zero-coupon subordinated notes	23.4	79.3
Fair market value of senior notes	5,357.9	5,254.5
Cash Surrender Value, Fair Value Disclosure	58.8	53.6
Fair Value Liabilities Measured On Recurring Basis Deferred Compensation Liability	59.6	54.2
Contingent Consideration Classified as Equity, Fair Value Disclosure	16.0	16.8
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	15.9	15.2
Cash Surrender Value, Fair Value Disclosure	58.8	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	12.0	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	16.8
Fair Value Hedges, Net	$ 0.0	$ 0.0