FAIR VALUE MEASUREMENTS (Details) (USD $) In Millions, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Fair Value, Liabilities Measured on Recurring Basis, Financial Statement Captions [Line Items]
Noncontrolling interest puts	$ 19.3	$ 19.4
Fair market value of zero-coupon subordinated notes	154.1	155.5
Fair market value of senior notes	2,976.3	2,907.8
Cash Surrender Value, Fair Value Disclosure	36.1	35.1
Fair Value Liabilities Measured On Recurring Basis Deferred Compensation Liability	40.3	36.3
Investments, Fair Value Disclosure	0	26.3
Level 1 [Member]
Fair Value, Liabilities Measured on Recurring Basis, Financial Statement Captions [Line Items]
Noncontrolling interest puts	0	0
Interest Rate Fair Value Hedge Asset at Fair Value	0	0
Cash Surrender Value, Fair Value Disclosure	0	0
Fair Value Liabilities Measured On Recurring Basis Deferred Compensation Liability	0	0
Investments, Fair Value Disclosure	0	26.3
Level 2 [Member]
Fair Value, Liabilities Measured on Recurring Basis, Financial Statement Captions [Line Items]
Noncontrolling interest puts	19.3	19.4
Interest Rate Fair Value Hedge Derivative at Fair Value, Net	13.4	0
Cash Surrender Value, Fair Value Disclosure	36.1	35.1
Fair Value Liabilities Measured On Recurring Basis Deferred Compensation Liability	40.3	36.3
Investments, Fair Value Disclosure	0	0
Level 3 [Member]
Fair Value, Liabilities Measured on Recurring Basis, Financial Statement Captions [Line Items]
Noncontrolling interest puts	0	0
Interest Rate Fair Value Hedge Derivative at Fair Value, Net	0	0
Cash Surrender Value, Fair Value Disclosure	0	0
Fair Value Liabilities Measured On Recurring Basis Deferred Compensation Liability	0	0
Investments, Fair Value Disclosure	$ 0	$ 0