INVESTMENTS-AFFILIATED COMPANIES (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Nov. 16, 2007
Schedule of Equity Method Investments [Line Items]
Gain (Loss) on Sale of Equity Investments	$ 0	$ 6.5	$ 0
Long term receivable from the sale of an equity method investment	7.8	15.6
Equity Method Investments	23.3us-gaap_EquityMethodInvestments	21.6us-gaap_EquityMethodInvestments
Total earnings of non-consolidated affiliates	1.7	2.8	3.0
Distributions from our non-consolidated affiliates	0	1.5	1.3
Bleach Joint Venture
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Aggregate Cost				11.6
Gain (Loss) on Sale of Equity Investments		6.5
Receivable from the sale of an equity method investment	16.6
Long term receivable from the sale of an equity method investment	7.8
Total earnings of non-consolidated affiliates	0	0.7	0.6
Bay Gas
Schedule of Equity Method Investments [Line Items]
Limited partner interest (in hundredths)	9.10%
General partner interest (in hundredths)	90.90%
Equity Method Investments	23.3	21.6
Total earnings of non-consolidated affiliates	$ 1.7	$ 2.1	$ 2.4

Ownership percentage of general partner.

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Amount of long term receivable from the sale of an equity method investment.

+ References

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Amount of receivable from the sale of an equity method investment.

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- Definition

This element represents the aggregate cost of investments accounted for under the equity method of accounting.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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-SubTopic 10

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This item represents disclosure of the amount of dividends or other distributions received from unconsolidated subsidiaries, certain corporate joint ventures, and certain noncontrolled corporation; these investments are accounted for under the equity method of accounting. This element excludes distributions that constitute a return of investment, which are classified as investing activities.

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Amount of gain (loss) on sale or disposal of an equity method investment.

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This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

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This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee.

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