LONG-LIVED ASSETS - Other Intangible Assets (Details) - USD ($) $ in Millions	Jun. 30, 2016	Dec. 31, 2015
Finite-lived and Indefinite-lived Intangible Assets by Major Class [Line Items]
Indefinite-Lived Intangible Assets (Excluding Goodwill)	$ 17.8	$ 20.2
Indefinite-lived intangible assets zero amortization	0.0	0.0
Finite-Lived Intangible Assets, Gross	142.1	138.3
Finite-Lived Intangible Assets, Accumulated Amortization	(111.0)	(103.6)
Finite-Lived Intangible Assets, Net	31.1	34.7
Intangible Assets, Gross (Excluding Goodwill)	159.9	158.5
Other Intangible Assets – net	48.9	54.9
Computer Software, Intangible Asset [Member]
Finite-lived and Indefinite-lived Intangible Assets by Major Class [Line Items]
Finite-Lived Intangible Assets, Gross	140.7	136.7
Finite-Lived Intangible Assets, Accumulated Amortization	(110.4)	(103.0)
Finite-Lived Intangible Assets, Net	30.3	33.7
Customer Relationships [Member]
Finite-lived and Indefinite-lived Intangible Assets by Major Class [Line Items]
Finite-Lived Intangible Assets, Gross	1.4	1.6
Finite-Lived Intangible Assets, Accumulated Amortization	(0.6)	(0.6)
Finite-Lived Intangible Assets, Net	0.8	1.0
Trademarks [Member]
Finite-lived and Indefinite-lived Intangible Assets by Major Class [Line Items]
Indefinite-Lived Intangible Assets (Excluding Goodwill)	14.9	16.9
Indefinite-lived intangible assets zero amortization	0.0	0.0
Noncompete Agreements [Member]
Finite-lived and Indefinite-lived Intangible Assets by Major Class [Line Items]
Indefinite-Lived Intangible Assets (Excluding Goodwill)	2.9	3.3
Indefinite-lived intangible assets zero amortization	$ 0.0	$ 0.0