ACQUISITIONS (Details 1) (USD $) In Millions, unless otherwise specified	12 Months Ended			8 Months Ended	2 Months Ended	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2013	Dec. 31, 2012	Aug. 22, 2012 KA Steel [Member]	Feb. 28, 2011 SunBelt [Member]	Dec. 31, 2011 SunBelt [Member]
Business Acquisition [Line Items]
Business Acquisition, Purchase Price Allocation, Current Assets				$ 128.1	$ 37.6
Business Acquisition, Purchase Price Allocation, Property, Plant and Equipment				25.1	87.4
Deferred taxes				1.6	0.4
Intangible Asset Finite and Infinite Lived				139.3
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets					5.8
Business Acquisition, Purchase Price Allocation, Assets Acquired				294.1	131.2
Business Acquisition, Purchase Price Allocation, Current Liabilities				64.2	42.7
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt					75.1
Business Acquisition, Purchase Price Allocation, Other Noncurrent Liabilities				10.4	27.6
Business Acquisition, Purchase Price Allocation, Liabilities Assumed				74.6	145.4
Equity Method Investments		21.6	29.3		(0.8)
Net identifiable assets acquired				219.5	(13.4)
Business Combination, Liabilities Arising from Contingencies, Amount Recognized					48.3
Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain	(181.4)				(181.4)	(181.4)
Business Acquisition, Goodwill, Expected Tax Deductible Amount	627.4	747.1	747.1	119.7	327.1
Fair value of net assets acquired				339.2	180.6
Payments to Acquire Businesses, Gross				336.6	132.3
Business Combination, Consideration Transferred, Other				2.6
Business Combination, Consideration Transferred				$ 339.2