FAIR VALUE MEASUREMENTS (Details) - USD ($) $ in Millions	Sep. 30, 2015	Dec. 31, 2014
Fair Value, Liabilities Measured on Recurring Basis, Financial Statement Captions [Line Items]
Noncontrolling interest puts	$ 15.5	$ 17.7
Fair market value of zero-coupon subordinated notes	163.1	155.6
Fair market value of senior notes	6,358.1	2,949.8
Cash Surrender Value, Fair Value Disclosure	43.8	41.9
Fair Value Liabilities Measured On Recurring Basis Deferred Compensation Liability	44.2	43.4
Level 1 [Member]
Fair Value, Liabilities Measured on Recurring Basis, Financial Statement Captions [Line Items]
Noncontrolling interest puts	0.0	0.0
Interest Rate Fair Value Hedge Asset at Fair Value	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
Level 2 [Member]
Fair Value, Liabilities Measured on Recurring Basis, Financial Statement Captions [Line Items]
Noncontrolling interest puts	15.5	17.7
Interest Rate Fair Value Hedge Derivative at Fair Value, Net	38.6	18.5
Cash Surrender Value, Fair Value Disclosure	43.8	41.9
Fair Value Liabilities Measured On Recurring Basis Deferred Compensation Liability	44.2	43.4
Level 3 [Member]
Fair Value, Liabilities Measured on Recurring Basis, Financial Statement Captions [Line Items]
Noncontrolling interest puts	0.0	0.0
Interest Rate Fair Value Hedge Derivative at Fair Value, Net	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