FAIR VALUE MEASUREMENTS (Details) - USD ($) $ in Millions	Mar. 31, 2016	Dec. 31, 2015
Fair Value, Liabilities Measured on Recurring Basis, Financial Statement Captions [Line Items]
Noncontrolling interest puts	$ 15.8	$ 14.9
Fair market value of zero-coupon subordinated notes	167.5	177.1
Fair market value of senior notes	6,220.5	6,070.5
Cash Surrender Value, Fair Value Disclosure	45.8	45.5
Fair Value Liabilities Measured On Recurring Basis Deferred Compensation Liability	48.3	46.4
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
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	15.8	14.9
Cash Surrender Value, Fair Value Disclosure	45.8	45.5
Fair Value Liabilities Measured On Recurring Basis Deferred Compensation Liability	0.0	0.0
Fair Value Hedges, Net	42.1	21.6
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
Fair Value Hedges, Net	$ 0.0	$ 0.0