Olin (OLN) 10-Q 3 Aug 15 2015 Q2 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - USD ($)	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Document and Entity Information [Abstract]
Entity Registrant Name	Olin Corporation
Entity Central Index Key	74,303
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	Jun. 30, 2015
Document Fiscal Year Focus	2,015
Document Fiscal Period Focus	Q2
Amendment Flag	false
Entity Common Stock, Shares Outstanding	77,522,544
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Public Float		$ 2,091,879,897

Condensed Balance Sheets

Condensed Balance Sheets - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014
Current assets:
Cash and cash equivalents	$ 232.4	$ 256.8	$ 245.6
Receivables, net	321.3	263.1	341.2
Income taxes receivable	3.2	21.6	9.2
Inventories	221.6	210.1	220.9
Current deferred income taxes	49.7	54.2	48.3
Other current assets	16.1	10.3	13.8
Total current assets	844.3	816.1	879
Property, plant and equipment (less accumulated depreciation of $1,385.6, $1,330.7 and $1,316.4)	917.6	931	951.3
Prepaid pension costs	0	0	1.7
Restricted cash	0	0	2.6
Deferred income taxes	13.1	12.5	8.9
Other assets	179	191.4	200.1
Goodwill	747.1	747.1	747.1
Total assets	2,701.1	2,698.1	2,790.7
Current liabilities:
Current installments of long-term debt	143.9	16.4	12.6
Accounts payable	148.6	146.8	186.8
Income taxes payable	11.1	0.2	0.4
Accrued liabilities	205.4	214.3	194.5
Total current liabilities	509	377.7	394.3
Long-term debt	528.2	658.7	676.6
Accrued pension liability	152.5	182	87.9
Deferred income taxes	99.5	107.1	130.9
Other liabilities	359.4	359.3	377.2
Total liabilities	$ 1,648.6	$ 1,684.8	$ 1,666.9
Commitments and contingencies
Shareholders' equity:
Common stock, par value $1 per share: authorized, 120.0 shares; issued and outstanding 77.5, 77.4 and 78.6 shares	$ 77.5	$ 77.4	$ 78.6
Additional paid-in capital	794.2	788.3	818.5
Accumulated other comprehensive loss	(434.3)	(443.1)	(356.4)
Retained earnings	615.1	590.7	583.1
Total shareholders' equity	1,052.5	1,013.3	1,123.8
Total liabilities and shareholders' equity	$ 2,701.1	$ 2,698.1	$ 2,790.7

Condensed Balance Sheets Parent

Condensed Balance Sheets Parenthetical - USD ($) shares in Millions, $ in Millions	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014
ASSETS
Accumulated depreciation	$ 1,385.6	$ 1,330.7	$ 1,316.4
Shareholders' equity:
Common stock, par value	$ 1	$ 1	$ 1
Common stock, authorized	120	120	120
Common stock, issued	77.5	77.4	78.6
Common stock, outstanding	77.5	77.4	78.6

Condensed Statements of Income

Condensed Statements of Income - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Income Statement [Abstract]
Sales	$ 535.4	$ 570.4	$ 1,053.4	$ 1,147.8
Operating expenses:
Cost of goods sold	445.5	463.6	878.7	939
Selling and administration	39.9	41.7	86.9	85.2
Restructuring charges	0.7	2.3	1.9	3.3
Acquisition-related costs	10.5	0.2	20.9	0.4
Other operating income	42.4	0.9	42.2	0.8
Operating income	81.2	63.5	107.2	120.7
Earnings of non-consolidated affiliates	0.4	0.5	0.8	0.9
Interest expense	18.2	9.6	25.3	19.3
Interest income	0.3	0.4	0.6	0.7
Income from continuing operations before taxes	63.7	54.8	83.3	103
Income tax provision	21.4	18.2	27.9	36.9
Income from continuing operations, net	42.3	36.6	55.4	66.1
Income from discontinued operations, net	0	0.7	0	0.7
Net income	$ 42.3	$ 37.3	$ 55.4	$ 66.8
Basic income per common share:
Income from continuing operations, net	$ 0.55	$ 0.46	$ 0.71	$ 0.84
Income from discontinued operations, net	0	0.01	0	0.01
Net income	0.55	0.47	0.71	0.85
Diluted income per common share:
Income from continuing operations, net	0.54	0.46	0.70	0.82
Income from discontinued operations, net	0	0.01	0	0.01
Net income	0.54	0.47	0.70	0.83
Dividends per common share	$ 0.20	$ 0.20	$ 0.40	$ 0.40
Average common shares outstanding:
Basic	77.5	78.8	77.5	79
Diluted	78.7	80	78.6	80.2

Condensed Statements of Compreh

Condensed Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Net income	$ 42.3	$ 37.3	$ 55.4	$ 66.8
Other comprehensive income, net of tax:
Foreign currency translation adjustments	0.3	0.3	(1.1)	1
Unrealized (losses) gains on derivative contracts	(0.2)	2.8	(0.5)	(0.3)
Amortization of prior service costs and actuarial losses	5.3	4	10.4	8
Total other comprehensive income, net of tax	5.4	7.1	8.8	8.7
Comprehensive income	$ 47.7	$ 44.4	$ 64.2	$ 75.5

Condensed Statements of Shareho

Condensed Statements of Shareholders' Equity - USD ($) shares in Millions, $ in Millions	Total	Common Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Loss	Retained Earnings
Balance (in shares) at Dec. 31, 2013		79.4
Balance at Dec. 31, 2013	$ 1,101.1	$ 79.4	$ 838.8	$ (365.1)	$ 548
Net income	66.8	0	0	0	66.8
Other comprehensive income	8.7	0	0	8.7	0
Dividends paid:
Common stock ($0.40 per share)	$ (31.7)	$ 0	0	0	(31.7)
Common stock repurchased and retired (in shares)	(1.1)	(1.1)
Common stock repurchased and retired	$ (29.7)	$ (1.1)	(28.6)	0	0
Common stock issued for:
Stock options exercised (in shares)	0.3	0.3
Stock options exercised	$ 7.3	$ 0.3	7	0	0
Other Transactions (in shares)		0
Other Transactions	(0.7)	$ 0	(0.7)	0	0
Stock-based compensation	2	$ 0	2	0	0
Balance (in shares) at Jun. 30, 2014		78.6
Balance at Jun. 30, 2014	1,123.8	$ 78.6	818.5	(356.4)	583.1
Balance (in shares) at Dec. 31, 2014		77.4
Balance at Dec. 31, 2014	1,013.3	$ 77.4	788.3	(443.1)	590.7
Net income	55.4	0	0	0	55.4
Other comprehensive income	8.8	0	0	8.8	0
Dividends paid:
Common stock ($0.40 per share)	$ (31)	$ 0	0	0	(31)
Common stock repurchased and retired (in shares)	0
Common stock repurchased and retired	$ 0
Common stock issued for:
Stock options exercised (in shares)	0.1	0.1
Stock options exercised	$ 3.1	$ 0.1	3	0	0
Other Transactions (in shares)		0
Other Transactions	(0.3)	$ 0	(0.3)	0	0
Stock-based compensation	3.2	$ 0	3.2	0	0
Balance (in shares) at Jun. 30, 2015		77.5
Balance at Jun. 30, 2015	$ 1,052.5	$ 77.5	$ 794.2	$ (434.3)	$ 615.1

Condensed Statements of Shareh7

Condensed Statements of Shareholders' Equity Parenthetical - $ / shares	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Statement of Stockholders' Equity [Abstract]
Common stock, per share	$ 0.40	$ 0.40

Condensed Statements of Cash Fl

Condensed Statements of Cash Flows - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Operating Activities
Net income	$ 55.4	$ 66.8
Adjustments to reconcile net income to net cash and cash equivalents provided by (used for) operating activities:
Earnings of non-consolidated affiliates	(0.8)	(0.9)
Gains on disposition of property, plant and equipment	(23.7)	(0.6)
Stock-based compensation	3.7	2.4
Depreciation and amortization	69.1	69.4
Deferred income taxes	(10)	10.5
Qualified pension plan contributions	(0.3)	(0.4)
Qualified pension plan income	(14)	(14.3)
Change in:
Receivables	(58.2)	(61.1)
Income taxes receivable/payable	29.3	(8.6)
Inventories	(11.5)	(34.4)
Other current assets	(5.8)	3.3
Accounts payable and accrued liabilities	(5.7)	8.2
Other assets	18.8	2
Other noncurrent liabilities	1.7	(5.1)
Other operating activities	0.1	0.2
Net operating activities	48.1	37.4
Investing Activities
Capital expenditures	(51.1)	(32.5)
Proceeds from disposition of property, plant and equipment	24.7	1.8
Proceeds from disposition of affiliated companies	4.4	0
Restricted cash activity	0	1.6
Other investing activities	(1.1)	1
Net investing activities	(23.1)	(28.1)
Financing Activities
Long-term debt repayments	(2.1)	(0.2)
Earn out payment - SunBelt	0	(14.8)
Common stock repurchased and retired	0	(29.7)
Stock options exercised	2.1	5.4
Excess tax benefits from stock-based compensation	0.3	0.7
Dividends paid	(31)	(31.7)
Deferred debt issuance costs	(18.7)	(1.2)
Net financing activities	(49.4)	(71.5)
Net decrease in cash and cash equivalents	(24.4)	(62.2)
Cash and cash equivalents, beginning of period	256.8	307.8
Cash and cash equivalents, end of period	232.4	245.6
Cash paid for interest and income taxes:
Interest	12.1	18
Income taxes, net of refunds	3.8	35.1
Non-cash investing activities:
Capital expenditures included in accounts payable and accrued liabilities	$ 2	$ 5.3

DESCRIPTION OF BUSINESS

DESCRIPTION OF BUSINESS	6 Months Ended
	Jun. 30, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
DESCRIPTION OF BUSINESS	DESCRIPTION OF BUSINESS Olin Corporation (Olin) is a Virginia corporation, incorporated in 1892. We are a manufacturer concentrated in three business segments: Chlor Alkali Products, Chemical Distribution and Winchester. Chlor Alkali Products, with eight U.S. manufacturing facilities and one Canadian manufacturing facility, produces chlorine and caustic soda, hydrochloric acid, hydrogen, bleach products and potassium hydroxide. Chemical Distribution, with twenty-three owned and leased terminal facilities, manufactures bleach products and distributes caustic soda, bleach products, potassium hydroxide and hydrochloric acid. Winchester, with its principal manufacturing facilities in East Alton, IL and Oxford, MS, produces and distributes sporting ammunition, law enforcement ammunition, reloading components, small caliber military ammunition and components, and industrial cartridges. We have prepared the condensed financial statements included herein, without audit, pursuant to the rules and regulations of the U.S. Securities and Exchange Commission (SEC). The preparation of the consolidated financial statements requires estimates and assumptions that affect amounts reported and disclosed in the financial statements and related notes. In our opinion, these financial statements reflect all adjustments (consisting only of normal accruals), which are necessary to present fairly the results for interim periods. Certain information and footnote disclosures normally included in financial statements prepared in accordance with generally accepted accounting principles have been condensed or omitted pursuant to such rules and regulations; however, we believe that the disclosures are appropriate. We recommend that you read these condensed financial statements in conjunction with the financial statements, accounting policies and the notes thereto and Management’s Discussion and Analysis of Financial Condition and Results of Operations included in our Annual Report on Form 10-K for the year ended December 31, 2014. Certain reclassifications were made to prior year amounts to conform to the 2015 presentation.

PROPOSED ACQUISITION

PROPOSED ACQUISITION	6 Months Ended
	Jun. 30, 2015
Proposed Acquisition [Abstract]
Business Combination Disclosure	PROPOSED AQUISITION On March 27, 2015, Olin and The Dow Chemical Company (TDCC) announced that Olin had agreed to acquire certain chlor alkali and downstream derivatives businesses from TDCC using a Reverse Morris Trust structure. Olin and TDCC and certain affiliates have entered into an Agreement and Plan of Merger (the Merger Agreement) dated March 26, 2015 among Olin, TDCC, Blue Cube Acquisition Corporation, a wholly-owned subsidiary of Olin (Merger Sub) and Blue Cube Spinco Inc. (Spinco), pursuant to which, subject to the terms and conditions of the Merger Agreement and a Separation Agreement dated March 26, 2015 between TDCC and Spinco (the Separation Agreement), (1) TDCC will transfer its U.S. chlor alkali and vinyl, global chlorinated organics and global epoxy businesses (collectively, the Business) to Spinco, (2) TDCC will distribute Spinco’s stock to TDCC’s shareholders, at TDCC’s option, by way of a spin-off, a split-off or a combination thereof (the Distribution) and (3) Merger Sub will merge with and into Spinco, with Spinco as the surviving corporation (the Merger). Upon consummation of the transactions contemplated by the Merger Agreement and the Separation Agreement, the shares of Spinco common stock then outstanding will automatically be converted into approximately 87.5 million shares of Olin’s common stock and will represent approximately 52.7% of the outstanding shares of Olin’s common stock. Olin’s existing shareholders will continue to hold the remaining approximately 47.3% of the outstanding shares of Olin’s common stock. Prior to the Distribution, TDCC will receive from Spinco distributions of cash and debt instruments of Spinco with an aggregate value of approximately $2,030.0 million (collectively, the Cash and Debt Distribution). TDCC expects to deliver the Spinco debt instruments received in the Cash and Debt Distribution in exchange for outstanding debt obligations to be identified by TDCC prior to the consummation of the Distribution (the Exchange). As the cash portion of the Cash and Debt Distribution, TDCC will receive from Spinco a total of $875.0 million immediately prior to the Distribution. The amount of the Cash and Debt Distribution is subject to adjustment based on Spinco’s working capital at the time of Distribution. If TDCC determines that the Exchange is not reasonably likely to be consummated at the time of the Distribution, TDCC may elect to receive the Spinco debt instruments in any event, or alternatively, may elect to receive cash for the full amount of the Cash and Debt Distribution; however, TDCC has no obligation to waive the consummation of the Exchange as a condition to the closing of the Merger. On June 23, 2015, Spinco entered into a new five-year $1,050.0 million delayed-draw term loan facility that will be used to finance the cash portion of the Cash and Debt Distribution. Also on June 23, 2015, Olin and Spinco entered into a new five-year $1,850.0 million senior credit facility consisting of a $500.0 million senior revolving credit facility, which will replace Olin’s current $265.0 million senior revolving credit facility at the closing of the Merger, and a $1,350.0 million (subject to reduction by the aggregate amount of the term loans funded to Spinco under the Spinco term loan facility) delayed-draw term loan facility that will be used to pay fees and expenses of the transactions contemplated by the Merger Agreement and the Separation Agreement, obtain additional funds for general corporate purposes and refinance Olin’s existing senior term loan facility due in 2019. The new senior credit facilities will expire in 2020. The $500.0 million senior revolving credit facility includes a $100.0 million letter of credit subfacility. The term loan facilities includes amortization payable in equal quarterly installments at a rate of 5.0% per annum for the first two years, increasing to 7.5% per annum for the following year and to 10.0% per annum for the last two years. The terms and conditions of the new senior credit facilities are similar to those of our current $415.0 million senior credit facility. Under its applicable new senior credit facilities, Olin or Spinco, as the case may be, may select various floating rate borrowing options. The actual interest rate paid on borrowings under the applicable senior credit facilities is based on a pricing grid which is dependent upon the leverage ratio as calculated under the terms of the applicable facility for the prior fiscal quarter. The facilities include various customary restrictive covenants, including restrictions related to the ratio of debt to earnings before interest expense, taxes, depreciation and amortization (leverage ratio) and the ratio of earnings before interest expense, taxes, depreciation and amortization to interest expense (coverage ratio). Compliance with these covenants is determined quarterly based on the operating cash flows for the last four quarters. On March 26, 2015, we and certain financial institutions executed commitment letters pursuant to which the financial institutions agreed to provide financing to Spinco to finance the amount of the Cash and Debt Distribution and to provide financing, if needed, to Olin to refinance certain of our existing debt (the Bridge Financing), in each case on the terms and conditions set forth in the commitment letters. For the six months ended June 30, 2015, we paid deferred debt issuance costs of $18.7 million associated with the Bridge Financing. During 2015, we expect to incur one-time costs in connection with the Merger and related transactions, including approximately $55 million to $60 million of advisory, legal, accounting, integration and other professional fees, approximately $50 million of costs associated with the change in control mandatory acceleration of expenses under deferred compensation plans as a result of the transaction and approximately $25 million to $30 million financing-related fees. For the three and six months ended June 30, 2015 , acquisition-related costs included $10.5 million and $20.9 million , respectively, associated with advisory, legal, accounting, integration and other professional fees, and interest expense included $11.6 million and $12.0 million , respectively, for acquisition financing expenses. The consummation of the Merger is subject to the satisfaction or waiver of various customary closing conditions, including, among others, (1) the consummation of the separation of the Business from the other businesses of TDCC (the Separation) and the Distribution in accordance with the Separation Agreement, (2) the expiration or termination of any applicable waiting period under the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended (the HSR Act), and the receipt of regulatory approvals in certain other jurisdictions, (3) the effectiveness of registration statements to be filed with the SEC, (4) the approval by Olin’s shareholders of the issuance of Olin common stock in the Merger (the Share Issuance) and the amendment of Olin’s Amended and Restated Articles of Incorporation to increase the number of authorized shares of Olin common stock (the Charter Amendment), (5) the receipt by TDCC of a favorable IRS private letter ruling with respect to certain aspects of the Separation and the Distribution and an opinion from its counsel with respect to certain federal income tax matters related to the Separation, Distribution and Exchange, (6) the receipt by TDCC, on the one hand, and Olin, on the other hand, of an opinion from their respective counsel to the effect that the Merger will be treated as a “reorganization” for U.S. federal income tax purposes, (7) the consummation of the Exchange (unless TDCC elects to receive cash for the full amount of the Cash and Debt Distribution as described above), (8) material compliance by each party with its covenants and (9) subject to certain materiality qualifiers, the absence of breaches of representations and warranties. On June 16, 2015, Olin announced that the waiting period applicable to the Merger under the HSR Act expired and on July 6, 2015, Olin announced that all foreign regulatory approvals required to close the Merger had been obtained. On July 17, 2015, TDCC announced that it had received a favorable private letter ruling from the IRS with respect to certain aspects of the Separation and Distribution. In connection with the transactions contemplated by the Merger Agreement and the Separation Agreement, certain additional agreements have been or will by entered into, including, among others, an Employee Matters Agreement, a Tax Matters Agreement and site, transitional and other services agreements, supply and purchase agreements, real estate agreements, technology licenses and intellectual property agreements. In addition, Olin and TDCC have agreed in connection with the transactions to enter into arrangements for the long-term supply of ethylene by TDCC to Olin, pursuant to which, among other things, Olin will make certain upfront payments upon the closing of the Merger in return for receiving ethylene at producer economics. Olin will also have the option of obtaining additional future ethylene supply by paying an additional reservation fee at closing.

RESTRUCTURING CHARGE

RESTRUCTURING CHARGE	6 Months Ended
	Jun. 30, 2015
Restructuring and Related Activities [Abstract]
RESTRUCTURING CHARGE	RESTRUCTURING CHARGES On December 12, 2014, we announced that we had made the decision to permanently close the portion of the Becancour, Canada chlor alkali facility that has been shut down since late June 2014. This action reduces the facility’s chlor alkali capacity by 185,000 tons. Subsequent to the shutdown, the plant will predominantly focus on bleach and hydrochloric acid, which are value-added products, as well as caustic soda. In the fourth quarter of 2014, we recorded pretax restructuring charges of $10.0 million for the write-off of equipment and facility costs, employee severance and related benefit costs, lease and other contract termination costs and a non-cash pension curtailment charge related to these actions. For the three months ended June 30, 2015 , we recorded pretax restructuring charges of $0.4 million for the write-off of equipment and facility costs and facility exit costs related to these actions. For the six months ended June 30, 2015 , we recorded pretax restructuring charges of $1.6 million for the write-off of equipment and facility costs, lease and other contract termination costs, facility exit costs and a non-cash pension curtailment charge related to these actions. We expect to incur additional restructuring charges through 2016 of approximately $4.0 million related to the shut down of this portion of the facility. On December 9, 2010, our board of directors approved a plan to eliminate our use of mercury in the manufacture of chlor alkali products. Under the plan, the 260,000 tons of mercury cell capacity at our Charleston, TN facility was converted to 200,000 tons of membrane capacity capable of producing both potassium hydroxide and caustic soda. The board of directors also approved plans to reconfigure our Augusta, GA facility to manufacture bleach and distribute caustic soda, while discontinuing chlor alkali manufacturing at this site. The completion of these projects eliminated our chlor alkali production using mercury cell technology. For the three months ended June 30, 2014 , we recorded pretax restructuring charges of $1.7 million for employee severance and related benefit costs, facility exit costs and write-off of equipment and facility related to these actions. For the six months ended June 30, 2014 , we recorded pretax restructuring charges of $2.3 million for employee severance and related benefit costs, facility exit costs and write-off of equipment and facility related to these actions. On November 3, 2010, we announced that we made the decision to relocate the Winchester centerfire pistol and rifle ammunition manufacturing operations from East Alton, IL to Oxford, MS. This relocation, when completed, is forecast to reduce Winchester’s annual operating costs by approximately $35 million to $40 million . Consistent with this decision we initiated an estimated $110 million five-year project, which includes approximately $80 million of capital spending. The capital spending was partially financed by $31 million of grants provided by the State of Mississippi and local governments. We currently expect to complete this relocation by the end of 2016. For the three months ended June 30, 2015 and 2014 , we recorded pretax restructuring charges of $0.3 million and $0.6 million , respectively, for employee relocation costs and facility exit costs related to these actions. For the six months ended June 30, 2015 and 2014 , we recorded pretax restructuring charges of $0.3 million and $1.0 million , respectively, for employee severance and related benefit costs, employee relocation costs and facility exit costs related to these actions. We expect to incur additional restructuring charges through 2016 of approximately $2.0 million related to the transfer of these operations. The following table summarizes the activity by major component of these 2014 and 2010 restructuring actions and the remaining balances of accrued restructuring costs as of June 30, 2015 : Employee severance and job related benefits Lease and other contract termination costs Employee relocation costs Facility exit costs Write-off of equipment and facility Total ($ in millions) Balance at January 1, 2014 $ 10.2 $ — $ — $ — $ — $ 10.2 Restructuring charges: First quarter 0.2 — 0.1 0.7 — 1.0 Second quarter 1.2 — — 0.8 0.3 2.3 Amounts utilized (1.2 ) — (0.1 ) (1.5 ) (0.3 ) (3.1 ) Balance at June 30, 2014 $ 10.4 $ — $ — $ — $ — $ 10.4 Balance at January 1, 2015 $ 11.2 $ 4.5 $ — $ — $ — $ 15.7 Restructuring charges: First quarter — 0.7 0.1 0.2 0.2 1.2 Second quarter — — 0.2 0.2 0.3 0.7 Amounts utilized (4.2 ) (2.8 ) (0.3 ) (0.4 ) (0.5 ) (8.2 ) Currency translation adjustments (0.4 ) (0.1 ) — — — (0.5 ) Balance at June 30, 2015 $ 6.6 $ 2.3 $ — $ — $ — $ 8.9 The following table summarizes the cumulative restructuring charges of these 2014 and 2010 restructuring actions by major component through June 30, 2015 : Chlor Alkali Products Winchester Total Becancour Mercury ($ in millions) Write-off of equipment and facility $ 3.5 $ 17.8 $ — $ 21.3 Employee severance and job related benefits 2.3 5.6 13.1 21.0 Facility exit costs 0.2 15.6 2.1 17.9 Pension and other postretirement benefits curtailment 0.4 — 4.1 4.5 Employee relocation costs — 0.9 5.0 5.9 Lease and other contract termination costs 5.2 0.7 — 5.9 Total cumulative restructuring charges $ 11.6 $ 40.6 $ 24.3 $ 76.5 As of June 30, 2015 , we have incurred cash expenditures of $34.6 million and non-cash charges of $32.5 million related to these restructuring actions. The remaining balance of $8.9 million is expected to be paid out through 2016.

DISCONTINUED OPERATIONS DISCONT

DISCONTINUED OPERATIONS DISCONTINUED OPERATIONS	6 Months Ended
	Jun. 30, 2015
Discontinued Operations [Abstract]
Disposal Groups, Including Discontinued Operations, Disclosure [Text Block]	DISCONTINUED OPERATIONS In 2007 we sold our Metals business, which was a reportable segment, and accordingly it was reported as a discontinued operation. Metals produced and distributed copper and copper alloy sheet, strip, foil, rod, welded tube, fabricated parts, and stainless steel and aluminum strip. In conjunction with the sale of the Metals business, we retained certain assets and liabilities. During the three months ended June 30, 2014, we made a payment of $5.5 million to resolve certain indemnity obligations related to the sale. As a result of the favorable resolution, we recognized a pretax gain of $4.6 million included in income from discontinued operations. The tax provision from discontinued operations included expense of $2.2 million for changes in tax contingencies related to the Metals sale. Income from discontinued operations, net consisted of the following: Three Months Ended Six Months Ended 2015 2014 2015 2014 ($ in millions) Income from discontinued operations $ — $ 4.6 $ — $ 4.6 Tax provision — 3.9 — 3.9 Income from discontinued operations, net $ — $ 0.7 $ — $ 0.7

ALLOWANCE FOR DOUBTFUL ACCOUNTS

ALLOWANCE FOR DOUBTFUL ACCOUNTS RECEIVABLES	6 Months Ended
	Jun. 30, 2015
Accounts Receivable, Net [Abstract]
ALLOWANCE FOR DOUBTFUL ACCOUNTS RECEIVABLES	ALLOWANCE FOR DOUBTFUL ACCOUNTS RECEIVABLES We evaluate the collectibility of accounts receivable based on a combination of factors. We estimate an allowance for doubtful accounts as a percentage of net sales based on historical bad debt experience. This estimate is periodically adjusted when we become aware of a specific customer’s inability to meet its financial obligations (e.g., bankruptcy filing) or as a result of changes in the overall aging of accounts receivable. While we have a large number of customers that operate in diverse businesses and are geographically dispersed, a general economic downturn in any of the industry segments in which we operate could result in higher than expected defaults, and, therefore, the need to revise estimates for the provision for doubtful accounts could occur. Allowance for doubtful accounts receivable consisted of the following: June 30, 2015 2014 ($ in millions) Balance at beginning of year $ 3.0 $ 3.4 Provisions (credited) charged (0.2 ) 0.7 Write-offs, net of recoveries (0.1 ) — Balance at end of period $ 2.7 $ 4.1 Provisions (credited) charged to operations were $(0.4) million and $0.4 million for the three months ended June 30, 2015 and 2014 , respectively.

INVENTORIES

INVENTORIES	6 Months Ended
	Jun. 30, 2015
Inventory Disclosure [Abstract]
INVENTORIES	INVENTORIES Inventories consisted of the following: June 30, December 31, June 30, ($ in millions) Supplies $ 41.6 $ 39.2 $ 43.1 Raw materials 70.1 63.3 75.6 Work in process 32.9 31.8 35.5 Finished goods 143.0 141.5 142.8 287.6 275.8 297.0 LIFO reserve (66.0 ) (65.7 ) (76.1 ) Inventories, net $ 221.6 $ 210.1 $ 220.9 Inventories are valued at the lower of cost or market. The Chlor Alkali Products and Winchester segments inventory costs are determined principally by the dollar value last-in, first-out (LIFO) method of inventory accounting. The Chemical Distribution segment inventory costs are determined principally by the first-in, first-out (FIFO) method of inventory accounting. Cost for other inventories has been determined principally by the average cost method, primarily operating supplies, spare parts and maintenance parts. Elements of costs in inventories included raw materials, direct labor and manufacturing overhead. Inventories under the LIFO method are based on annual estimates of quantities and costs as of year-end; therefore, the condensed financial statements at June 30, 2015 reflect certain estimates relating to inventory quantities and costs at December 31, 2015 . The replacement cost of our inventories would have been approximately $66.0 million , $65.7 million and $76.1 million higher than reported at June 30, 2015 , December 31, 2014 and June 30, 2014 , respectively.

OTHER ASSETS

OTHER ASSETS	6 Months Ended
	Jun. 30, 2015
Other Assets [Abstract]
Other Assets Disclosure [Text Block]	OTHER ASSETS Included in other assets were the following: June 30, 2015 December 31, 2014 June 30, 2014 ($ in millions) Investments in non-consolidated affiliates $ 24.1 $ 23.3 $ 22.5 Intangible assets (less accumulated amortization of $49.9, $42.6 and $35.3) 116.2 123.5 130.8 Deferred debt issuance costs 17.0 10.3 13.9 Bleach joint venture receivable 3.8 7.8 11.7 Income tax receivable 1.5 6.6 — Interest rate swaps — 3.5 4.7 Other 16.4 16.4 16.5 Other assets $ 179.0 $ 191.4 $ 200.1

EARNINGS PER SHARE

EARNINGS PER SHARE	6 Months Ended
	Jun. 30, 2015
Earnings Per Share [Abstract]
EARNINGS PER SHARE	EARNINGS PER SHARE Basic and diluted net income per share are computed by dividing net income by the weighted average number of common shares outstanding. Diluted net income per share reflects the dilutive effect of stock-based compensation. Three Months Ended Six Months Ended 2015 2014 2015 2014 Computation of Income per Share ($ and shares in millions, except per share data) Income from continuing operations, net $ 42.3 $ 36.6 $ 55.4 $ 66.1 Income from discontinued operations, net — 0.7 — 0.7 Net income $ 42.3 $ 37.3 $ 55.4 $ 66.8 Basic shares 77.5 78.8 77.5 79.0 Basic income per share: Income from continuing operations, net $ 0.55 $ 0.46 $ 0.71 $ 0.84 Income from discontinued operations, net — 0.01 — 0.01 Net income $ 0.55 $ 0.47 $ 0.71 $ 0.85 Diluted shares: Basic shares 77.5 78.8 77.5 79.0 Stock-based compensation 1.2 1.2 1.1 1.2 Diluted shares 78.7 80.0 78.6 80.2 Diluted income per share: Income from continuing operations, net $ 0.54 $ 0.46 $ 0.70 $ 0.82 Income from discontinued operations, net — 0.01 — 0.01 Net income $ 0.54 $ 0.47 $ 0.70 $ 0.83 The computation of dilutive shares from stock-based compensation does not include 0.8 million shares and 0.6 million shares for the three months ended June 30, 2015 and 2014 , respectively, and 1.4 million shares and 0.6 million shares for the six months ended June 30, 2015 and 2014 , respectively, as their effect would have been anti-dilutive.

ENVIRONMENTAL

ENVIRONMENTAL	6 Months Ended
	Jun. 30, 2015
Environmental Remediation Obligations [Abstract]
ENVIRONMENTAL	ENVIRONMENTAL We are party to various government and private environmental actions associated with past manufacturing facilities and former waste disposal sites. Charges to income for investigatory and remedial efforts were material to operating results in 2014 and are expected to be material to operating results in 2015. The condensed balance sheets included reserves for future environmental expenditures to investigate and remediate known sites amounting to $137.9 million , $138.3 million and $142.3 million at June 30, 2015 , December 31, 2014 and June 30, 2014 , respectively, of which $118.9 million , $119.3 million and $124.3 million , respectively, were classified as other noncurrent liabilities. Environmental provisions charged to income, which are included in cost of goods sold, were $5.1 million and $1.2 million for the three months ended June 30, 2015 and 2014 , respectively, and $5.8 million and $4.7 million for the six months ended June 30, 2015 and 2014 . Environmental exposures are difficult to assess for numerous reasons, including the identification of new sites, developments at sites resulting from investigatory studies, advances in technology, changes in environmental laws and regulations and their application, changes in regulatory authorities, the scarcity of reliable data pertaining to identified sites, the difficulty in assessing the involvement and financial capability of other potentially responsible parties (PRPs), our ability to obtain contributions from other parties and the lengthy time periods over which site remediation occurs. It is possible that some of these matters (the outcomes of which are subject to various uncertainties) may be resolved unfavorably to us, which could materially adversely affect our financial position or results of operations.

COMMITMENTS AND CONTINGENCIES

COMMITMENTS AND CONTINGENCIES	6 Months Ended
	Jun. 30, 2015
Commitments and Contingencies Disclosure [Abstract]
COMMITMENTS AND CONTINGENCIES	COMMITMENTS AND CONTINGENCIES We, and our subsidiaries, are defendants in various legal actions (including proceedings based on alleged exposures to asbestos) incidental to our past and current business activities. As of June 30, 2015 , December 31, 2014 and June 30, 2014 , our condensed balance sheets included liabilities for these legal actions of $22.4 million , $22.1 million and $23.8 million , respectively. These liabilities do not include costs associated with legal representation. Based on our analysis, and considering the inherent uncertainties associated with litigation, we do not believe that it is reasonably possible that these legal actions will materially adversely affect our financial position, cash flows or results of operations. During the ordinary course of our business, contingencies arise resulting from an existing condition, situation or set of circumstances involving an uncertainty as to the realization of a possible gain contingency. In certain instances such as environmental projects, we are responsible for managing the cleanup and remediation of an environmental site. There exists the possibility of recovering a portion of these costs from other parties. We account for gain contingencies in accordance with the provisions of Accounting Standards Codification (ASC) 450 “Contingencies” (ASC 450) and therefore do not record gain contingencies and recognize income until it is earned and realizable. For the three months ended June 30, 2015 we recognized insurance recoveries of $52.2 million for property damage and business interruption related to the portion of the Becancour, Canada chlor alkali facility that has been shut down since late June 2014. Cost of goods sold was reduced by $9.0 million and selling and administration was reduced by $0.9 million for the reimbursement of costs incurred and expensed in prior periods and other operating income included a gain of $42.3 million . The condensed statement of cash flows for the six months ended June 30, 2015 included $24.0 million for the property damage portion of the insurance recoveries within proceeds from disposition of property, plant and equipment and gains on disposition of property, plant and equipment.

SHAREHOLDERS' EQUITY

SHAREHOLDERS' EQUITY	6 Months Ended
	Jun. 30, 2015
Stockholders' Equity Note [Abstract]
SHAREHOLDERS' EQUITY	SHAREHOLDERS’ EQUITY On April 24, 2014, our board of directors authorized a new share repurchase program for up to 8 million shares of common stock that will terminate in three years for any of the remaining shares not yet repurchased. This authorization replaced the July 2011 share repurchase program. For the six months ended June 30, 2015 , no shares were purchased and retired. For the six months ended June 30, 2014 , 1.1 million shares were purchased and retired at a cost of $29.7 million . As of June 30, 2015 , we had purchased a total of 1.9 million shares under the April 2014 program, and 6.1 million shares remained authorized to be purchased. Under the Merger Agreement relating to our pending acquisition of certain chlor alkali and downstream derivatives businesses from TDCC, we are restricted from repurchasing shares of our common stock prior to the consummation of the Merger. After the closing of the Merger for a period of two years, we will continue to be subject to certain restrictions on our ability to conduct share repurchases, subject to certain exceptions. We issued 0.1 million shares and 0.3 million shares representing stock options exercised for the six months ended June 30, 2015 and 2014 , respectively, with a total value of $3.1 million and $7.3 million , respectively. The following table represents the activity included in accumulated other comprehensive loss: Foreign Currency Translation Adjustment Unrealized Gains (Losses) on Derivative Contracts (net of taxes) Pension and Postretirement Benefits (net of taxes) Accumulated Other Comprehensive Loss ($ in millions) Balance at January 1, 2014 $ (0.5 ) $ 0.9 $ (365.5 ) $ (365.1 ) Unrealized gains (losses): First quarter 0.7 (5.7 ) — (5.0 ) Second quarter 0.3 3.7 — 4.0 Reclassification adjustments into income: First quarter — 0.6 6.5 7.1 Second quarter — 0.9 6.8 7.7 Tax benefit (provision): First quarter — 2.0 (2.5 ) (0.5 ) Second quarter — (1.8 ) (2.8 ) (4.6 ) Net Change 1.0 (0.3 ) 8.0 8.7 Balance at June 30, 2014 $ 0.5 $ 0.6 $ (357.5 ) $ (356.4 ) Balance at January 1, 2015 $ (2.3 ) $ (4.2 ) $ (436.6 ) $ (443.1 ) Unrealized (losses) gains: First quarter (1.4 ) (2.4 ) — (3.8 ) Second quarter 0.3 (2.2 ) — (1.9 ) Reclassification adjustments into income: First quarter — 1.9 8.6 10.5 Second quarter — 1.8 8.4 10.2 Tax benefit (provision): First quarter — 0.2 (3.5 ) (3.3 ) Second quarter — 0.2 (3.1 ) (2.9 ) Net Change (1.1 ) (0.5 ) 10.4 8.8 Balance at June 30, 2015 $ (3.4 ) $ (4.7 ) $ (426.2 ) $ (434.3 ) Net income and cost of goods sold included reclassification adjustments for realized gains and losses on derivative contracts from accumulated other comprehensive loss. Net income, cost of goods sold and selling and administrative expenses included the amortization of prior service costs and actuarial losses from accumulated other comprehensive loss. This amortization is recognized equally in cost of goods sold and selling and administrative expenses.

SEGMENT INFORMATION

SEGMENT INFORMATION	6 Months Ended
	Jun. 30, 2015
Segment Reporting [Abstract]
SEGMENT INFORMATION	SEGMENT INFORMATION We define segment results as income (loss) from continuing operations before interest expense, interest income, other operating (expense) income, other (expense) income and income taxes, and include the operating results of non-consolidated affiliates. Intersegment sales of $23.8 million and $24.7 million for the three months ended June 30, 2015 and 2014 , respectively, and $47.0 million and $45.4 million for the six months ended June 30, 2015 and 2014 , respectively, have been eliminated. These represent the sale of caustic soda, bleach, potassium hydroxide and hydrochloric acid between Chemical Distribution and Chlor Alkali Products, at prices that approximate market. Three Months Ended Six Months Ended 2015 2014 2015 2014 Sales: ($ in millions) Chlor Alkali Products $ 294.7 $ 338.5 $ 587.4 $ 666.8 Chemical Distribution 70.3 75.6 140.1 144.8 Winchester 194.2 181.0 372.9 381.6 Intersegment sales elimination (23.8 ) (24.7 ) (47.0 ) (45.4 ) Total sales $ 535.4 $ 570.4 $ 1,053.4 $ 1,147.8 Income (loss) from continuing operations before taxes: Chlor Alkali Products $ 25.0 $ 40.8 $ 48.1 $ 75.1 Chemical Distribution 2.4 — 3.4 (0.8 ) Winchester 33.9 33.1 63.7 71.4 Corporate/other: Pension income 7.4 7.5 14.5 15.4 Environmental expense (5.1 ) (1.2 ) (5.8 ) (4.7 ) Other corporate and unallocated costs (13.2 ) (14.6 ) (35.3 ) (31.9 ) Restructuring charges (0.7 ) (2.3 ) (1.9 ) (3.3 ) Acquisition-related costs (10.5 ) (0.2 ) (20.9 ) (0.4 ) Other operating income 42.4 0.9 42.2 0.8 Interest expense (18.2 ) (9.6 ) (25.3 ) (19.3 ) Interest income 0.3 0.4 0.6 0.7 Income from continuing operations before taxes $ 63.7 $ 54.8 $ 83.3 $ 103.0

STOCK-BASED COMPENSATION

STOCK-BASED COMPENSATION	6 Months Ended
	Jun. 30, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
STOCK-BASED COMPENSATION	STOCK-BASED COMPENSATION Stock-based compensation granted includes stock options, performance stock awards, restricted stock awards and deferred directors’ compensation. Stock-based compensation expense was as follows: Three Months Ended Six Months Ended 2015 2014 2015 2014 ($ in millions) Stock-based compensation $ 3.9 $ 2.1 $ 6.3 $ 5.0 Mark-to-market adjustments (3.1 ) (0.2 ) 2.2 (1.1 ) Total expense $ 0.8 $ 1.9 $ 8.5 $ 3.9 The fair value of each stock option granted, which typically vests ratably over three years, but not less than one year, was estimated on the date of grant, using the Black-Scholes option-pricing model with the following weighted-average assumptions: Grant date 2015 2014 Dividend yield 2.92 % 3.13 % Risk-free interest rate 1.69 % 2.13 % Expected volatility 34 % 42 % Expected life (years) 6.0 7.0 Weighted average grant fair value (per option) $ 6.80 $ 8.34 Weighted average exercise price $ 27.40 $ 25.69 Shares granted 776,750 624,200 Dividend yield for 2015 and 2014 was based on a historical average. Risk-free interest rate was based on zero coupon U.S. Treasury securities rates for the expected life of the options. Expected volatility was based on our historical stock price movements, as we believe that historical experience is the best available indicator of the expected volatility. Expected life of the option grant was based on historical exercise and cancellation patterns, as we believe that historical experience is the best estimate of future exercise patterns.

PENSION PLANS AND RETIREMENT BE

PENSION PLANS AND RETIREMENT BENEFITS	6 Months Ended
	Jun. 30, 2015
Compensation and Retirement Disclosure [Abstract]
PENSION PLANS AND RETIREMENT BENEFITS	PENSION PLANS AND RETIREMENT BENEFITS Most of our employees participate in defined contribution pension plans. We provide a contribution to an individual retirement contribution account maintained with the Contributing Employee Ownership Plan (CEOP) primarily equal to 5% of the employee’s eligible compensation if such employee is less than age 45, and 7.5% of the employee’s eligible compensation if such employee is age 45 or older. The defined contribution pension plans expense was $4.6 million and $4.3 million for the three months ended June 30, 2015 and 2014 , respectively, and $8.9 million and $8.4 million for the six months ended June 30, 2015 and 2014 , respectively. A portion of our bargaining hourly employees continue to participate in our domestic defined benefit pension plans under a flat-benefit formula. Our funding policy for the defined benefit pension plans is consistent with the requirements of federal laws and regulations. Our foreign subsidiaries maintain pension and other benefit plans, which are consistent with statutory practices. Our defined benefit pension plan provides that if, within three years following a change of control of Olin, any corporate action is taken or filing made in contemplation of, among other things, a plan termination or merger or other transfer of assets or liabilities of the plan, and such termination, merger, or transfer thereafter takes place, plan benefits would automatically be increased for affected participants (and retired participants) to absorb any plan surplus (subject to applicable collective bargaining requirements). We also provide certain postretirement health care (medical) and life insurance benefits for eligible active and retired domestic employees. The health care plans are contributory with participants’ contributions adjusted annually based on medical rates of inflation and plan experience. Pension Benefits Other Postretirement Benefits Three Months Ended Three Months Ended 2015 2014 2015 2014 Components of Net Periodic Benefit (Income) Cost ($ in millions) Service cost $ 1.3 $ 1.3 $ 0.3 $ 0.3 Interest cost 20.6 21.8 0.7 0.8 Expected return on plans’ assets (35.7 ) (34.9 ) — — Amortization of prior service cost 0.1 0.1 — (0.1 ) Recognized actuarial loss 7.4 5.8 0.9 1.0 Net periodic benefit (income) cost $ (6.3 ) $ (5.9 ) $ 1.9 $ 2.0 Pension Benefits Other Postretirement Six Months Ended Six Months Ended 2015 2014 2015 2014 Components of Net Periodic Benefit (Income) Cost ($ in millions) Service cost $ 2.9 $ 2.7 $ 0.6 $ 0.6 Interest cost 41.2 43.4 1.3 1.5 Expected return on plans’ assets (71.3 ) (69.8 ) — — Amortization of prior service cost 0.1 0.1 — (0.1 ) Recognized actuarial loss 14.9 11.3 1.8 2.0 Curtailment 0.1 — 0.1 — Net periodic benefit (income) cost $ (12.1 ) $ (12.3 ) $ 3.8 $ 4.0 For the six months ended June 30, 2015 , we recorded a curtailment charge of $0.2 million associated with permanently closing a portion of the Becancour, Canada chlor alkali facility that has been shut down since late June 2014. This charge was included in restructuring charges for the six months ended June 30, 2015 . We made cash contributions to our Canadian qualified defined benefit pension plan of $0.3 million and $0.4 million for the six months ended June 30, 2015 and 2014 , respectively.

INCOME TAXES

INCOME TAXES	6 Months Ended
	Jun. 30, 2015
Income Tax Disclosure [Abstract]
INCOME TAXES	INCOME TAXES The following table accounts for the difference between the actual tax provision and the amounts obtained by applying the statutory U.S. federal income tax rate of 35.0% to income before taxes. Three Months Ended Six Months Ended Effective Tax Rate Reconciliation (Percent) 2015 2014 2015 2014 Statutory federal tax rate 35.0 % 35.0 % 35.0 % 35.0 % Foreign rate differential (0.2 ) (0.2 ) (0.2 ) (0.1 ) Domestic manufacturing/export tax incentive (1.2 ) (2.3 ) (1.6 ) (2.2 ) Return to provision (1.6 ) (2.0 ) (1.3 ) (1.0 ) Dividends paid to CEOP (0.6 ) (0.4 ) (0.6 ) (0.4 ) State income taxes, net 0.8 2.0 0.8 2.2 Remeasurement of deferred taxes 0.4 1.0 0.3 0.4 Change in valuation allowance 1.3 — 1.3 1.9 Other, net (0.3 ) 0.1 (0.2 ) — Effective tax rate 33.6 % 33.2 % 33.5 % 35.8 % The effective tax rates from continuing operations for the three months ended June 30, 2015 and 2014 included the cumulative effect of changes to our annual estimated effective tax rate from continuing operations from prior quarters. The effective tax rates from continuing operations for both the three and six months ended June 30, 2015 included a benefit of $1.0 million associated with a return to provision adjustment for the finalization of our prior years’ U.S. federal and state income tax returns. The effective tax rates from continuing operations for the three and six months ended June 30, 2015 also included an expense of $0.3 million related to the remeasurement of deferred taxes due to an increase in state effective tax rates. The effective tax rates from continuing operations for both the three and six months ended June 30, 2014 included a benefit of $1.1 million associated with a return to provision adjustment for the finalization of our 2013 U.S. federal and state income tax returns. The effective tax rates from continuing operations for the three and six months ended June 30, 2014 also included an expense of $0.5 million related to the remeasurement of deferred taxes due to an increase in state effective tax rates. The effective tax rate from continuing operations for the six months ended June 30, 2014 included $1.6 million of expense primarily associated with increases in valuation allowances on certain state tax credit carryforwards associated with a change in a state tax law. The condensed balance sheets include income tax receivables that are classified as other noncurrent assets of $1.5 million at June 30, 2015 and $6.6 million at December 31, 2014 . As of June 30, 2015 , we had $35.0 million of gross unrecognized tax benefits, which would have a net $33.8 million impact on the effective tax rate from continuing operations, if recognized. As of June 30, 2014 , we had $36.5 million of gross unrecognized tax benefits, of which $31.5 million would have impacted the effective tax rate from continuing operations, if recognized. The amount of unrecognized tax benefits was as follows: June 30, 2015 2014 ($ in millions) Balance at beginning of year $ 36.1 $ 34.5 Increases for prior year tax positions — 0.2 Increases for current year tax positions — 2.2 Settlement with taxing authorities (1.1 ) (0.4 ) Balance at end of period $ 35.0 $ 36.5 Income from discontinued operations, net for the three and six months ended June 30, 2014 included $2.2 million of tax expense related to changes in tax contingencies. As of June 30, 2015 , we believe it is reasonably possible that our total amount of unrecognized tax benefits will decrease by approximately $6.3 million over the next twelve months. The anticipated reduction primarily relates to settlements with taxing authorities and the expiration of federal, state and foreign statutes of limitation. We operate primarily in North America and file income tax returns in numerous jurisdictions. Our tax returns are subject to examination by various federal, state and local tax authorities. Our U.S. federal income tax returns are under examination by the Internal Revenue Service (IRS) for tax years 2008 and 2010 to 2012. Our Canadian federal income tax returns are under examination by Canada Revenue Authority (CRA) for tax years 2010 and 2011. Our Canadian provincial income tax returns are under examination by Quebec Revenue Authority for tax years 2008 to 2011. We believe we have adequately provided for all tax positions; however, amounts asserted by taxing authorities could be greater than our accrued positions. For our primary tax jurisdictions, the tax years that remain subject to examination are as follows: Tax Years U.S. federal income tax 2008; 2010 – 2014 U.S. state income tax 2006 – 2014 Canadian federal income tax 2010 – 2014 Canadian provincial income tax 2008 – 2014

DERIVATIVE FINANCIAL INSTRUMENT

DERIVATIVE FINANCIAL INSTRUMENTS	6 Months Ended
	Jun. 30, 2015
Derivative Instruments and Hedging Activities Disclosure [Abstract]
DERIVATIVE FINANCIAL INSTRUMENTS	DERIVATIVE FINANCIAL INSTRUMENTS We are exposed to market risk in the normal course of our business operations due to our purchases of certain commodities, our ongoing investing and financing activities and our operations that use foreign currencies. The risk of loss can be assessed from the perspective of adverse changes in fair values, cash flows and future earnings. We have established policies and procedures governing our management of market risks and the use of financial instruments to manage exposure to such risks. ASC 815 “Derivatives and Hedging” (ASC 815) requires an entity to recognize all derivatives as either assets or liabilities in the statement of financial position and measure those instruments at fair value. We use hedge accounting treatment for substantially all of our business transactions whose risks are covered using derivative instruments. In accordance with ASC 815, we designate commodity forward contracts as cash flow hedges of forecasted purchases of commodities and certain interest rate swaps as fair value hedges of fixed-rate borrowings. We do not enter into any derivative instruments for trading or speculative purposes. Energy costs, including electricity used in our Chlor Alkali Products segment, and certain raw material and energy costs, namely copper, lead, zinc, electricity and natural gas used in our Winchester and Chemical Distribution segments, are subject to price volatility. Depending on market conditions, we may enter into futures contracts and put and call option contracts in order to reduce the impact of commodity price fluctuations. The majority of our commodity derivatives expire within one year. Those commodity contracts that extend beyond one year correspond with raw material purchases for long-term fixed-price sales contracts. In March 2010, we entered into interest rate swaps on $125 million of our underlying fixed-rate debt obligations, whereby we agreed to pay variable rates to a counterparty who, in turn, pays us fixed rates. The counterparty to these agreements is Citibank, N.A. (Citibank), a major financial institution. In October 2011, we entered into $125 million of interest rate swaps with equal and opposite terms as the $125 million variable interest rate swaps on the 6.75% senior notes due 2016 (2016 Notes). We have agreed to pay a fixed rate to a counterparty who, in turn, pays us variable rates. The counterparty to these agreements is also Citibank. The result was a gain of $11.0 million on the $125 million variable interest rate swaps, which will be recognized through 2016. As of June 30, 2015 , $2.5 million of this gain was included in current installments of long-term debt. In October 2011, we de-designated our $125 million interest rate swaps that had previously been designated as fair value hedges. The $125 million variable interest rate swaps and the $125 million fixed interest rate swaps do not meet the criteria for hedge accounting. All changes in the fair value of these interest rate swaps are recorded currently in earnings. Cash flow hedges ASC 815 requires that all derivative instruments be recorded on the balance sheet at their fair value. For derivative instruments that are designated and qualify as a cash flow hedge, the change in fair value of the derivative is recognized as a component of other comprehensive income until the hedged item is recognized in earnings. Gains and losses on the derivatives representing hedge ineffectiveness are recognized currently in earnings. We had the following notional amount of outstanding commodity forward contracts that were entered into to hedge forecasted purchases: June 30, 2015 December 31, 2014 June 30, 2014 ($ in millions) Copper $ 50.3 $ 62.7 $ 47.1 Zinc 5.8 6.8 5.7 Lead 15.0 14.1 18.6 Natural gas 4.7 5.7 10.3 As of June 30, 2015 , the counterparty to $47.1 million of these commodity forward contracts is Wells Fargo Bank, N.A. (Wells Fargo), a major financial institution, and the counterparty to $28.7 million of these commodity forward contracts is Citibank, a major financial institution. We use cash flow hedges for certain raw material and energy costs such as copper, zinc, lead, electricity and natural gas to provide a measure of stability in managing our exposure to price fluctuations associated with forecasted purchases of raw materials and energy used in the company’s manufacturing process. At June 30, 2015 , we had open positions in futures contracts through 2018. If all open futures contracts had been settled on June 30, 2015 , we would have recognized a pretax loss of $8.0 million . If commodity prices were to remain at June 30, 2015 levels, approximately $3.6 million of deferred losses would be reclassified into earnings during the next twelve months. The actual effect on earnings will be dependent on actual commodity prices when the forecasted transactions occur. Fair value hedges For derivative instruments that are designated and qualify as a fair value hedge, the gain or loss on the derivative as well as the offsetting loss or gain on the hedged item attributable to the hedged risk are recognized in current earnings. We include the gain or loss on the hedged items (fixed-rate borrowings) in the same line item, interest expense, as the offsetting loss or gain on the related interest rate swaps. We had no interest rate swaps designated as fair value hedges as of June 30, 2015 , December 31, 2014 and June 30, 2014 . In June 2012, we terminated $73.1 million of interest rate swaps with Wells Fargo that had been entered into on the SunBelt Notes in May 2011. The result was a gain of $2.2 million , which will be recognized through 2017. As of June 30, 2015 , $0.6 million of this gain was included in long-term debt. Pursuant to a note purchase agreement dated December 22, 1997, the SunBelt Chlor Alkali Partnership (SunBelt) sold $97.5 million of Guaranteed Senior Secured Notes due 2017, Series O, and $97.5 million of Guaranteed Senior Secured Notes due 2017, Series G. We refer to these notes as the SunBelt Notes. The SunBelt Notes bear interest at a rate of 7.23% per annum, payable semi-annually in arrears on each June 22 and December 22. We use interest rate swaps as a means of managing interest expense and floating interest rate exposure to optimal levels. These interest rate swaps are treated as fair value hedges. The accounting for gains and losses associated with changes in fair value of the derivative and the effect on the condensed financial statements will depend on the hedge designation and whether the hedge is effective in offsetting changes in fair value of cash flows of the asset or liability being hedged. Financial statement impacts We present our derivative assets and liabilities in our condensed balance sheets on a net basis whenever we have a legally enforceable master netting agreement with the counterparty to our derivative contracts. We use these agreements to manage and substantially reduce our potential counterparty credit risk. The following table summarizes the location and fair value of the derivative instruments on our condensed balance sheets. The table disaggregates our net derivative assets and liabilities into gross components on a contract-by-contract basis before giving effect to master netting arrangements: Asset Derivatives Liability Derivatives Fair Value Fair Value Derivatives Designated as Hedging Instruments Balance Sheet Location June 30, 2015 December 31, 2014 June 30, 2014 Balance Sheet Location June 30, 2015 December 31, 2014 June 30, 2014 ($ in millions) ($ in millions) Interest rate contracts Other current assets $ — $ — $ — Current installments of long-term debt $ 2.5 $ — $ — Interest rate contracts Other assets — — — Long-term debt 0.6 4.5 5.9 Commodity contracts – losses Other current assets — — (2.1 ) Accrued liabilities 8.1 7.2 — Commodity contracts – gains Other current assets — — 2.8 Accrued liabilities (0.1 ) (0.1 ) — $ — $ — $ 0.7 $ 11.1 $ 11.6 $ 5.9 Derivatives Not Designated as Hedging Instruments Interest rate contracts - gains Other current assets $ 3.1 $ — $ — Accrued liabilities $ — $ — $ — Interest rate contracts - losses Other current assets (0.8 ) — — Accrued liabilities — — — Interest rate contracts – gains Other assets — 4.3 6.3 Other liabilities — — — Interest rate contracts – losses Other assets — (0.8 ) (1.6 ) Other liabilities — — — Commodity contracts – losses Other current assets — — (0.1 ) Accrued liabilities 0.8 1.5 — Commodity contracts – gains Other current assets — — 0.3 Accrued liabilities — — — $ 2.3 $ 3.5 $ 4.9 $ 0.8 $ 1.5 $ — Total derivatives (1) $ 2.3 $ 3.5 $ 5.6 $ 11.9 $ 13.1 $ 5.9 (1) Does not include the impact of cash collateral received from or provided to counterparties. The following table summarizes the effects of derivative instruments on our condensed statements of income: Amount of Gain (Loss) Amount of Gain (Loss) Three Months Ended Six Months Ended Location of Gain (Loss) 2015 2014 2015 2014 Derivatives – Cash Flow Hedges ($ in millions) Recognized in other comprehensive loss (effective portion) ——— $ (2.2 ) $ 3.7 $ (4.6 ) $ (2.0 ) Reclassified from accumulated other comprehensive loss into income (effective portion) Cost of goods sold $ (1.8 ) $ (0.9 ) $ (3.7 ) $ (1.5 ) Derivatives – Fair Value Hedges Interest rate contracts Interest expense $ 0.7 $ 0.7 $ 1.4 $ 1.4 Derivatives Not Designated as Hedging Instruments Commodity contracts Cost of goods sold $ 0.1 $ — $ (1.6 ) $ 0.6 The ineffective portion of changes in fair value resulted in zero charged or credited to earnings for the three and six months ended June 30, 2015 and 2014 . Credit risk and collateral By using derivative instruments, we are exposed to credit and market risk. If a counterparty fails to fulfill its performance obligations under a derivative contract, our credit risk will equal the fair-value gain in a derivative. Generally, when the fair value of a derivative contract is positive, this indicates that the counterparty owes us, thus creating a repayment risk for us. When the fair value of a derivative contract is negative, we owe the counterparty and, therefore, assume no repayment risk. We minimize the credit (or repayment) risk in derivative instruments by entering into transactions with high-quality counterparties. We monitor our positions and the credit ratings of our counterparties, and we do not anticipate non-performance by the counterparties. Based on the agreements with our various counterparties, cash collateral is required to be provided when the net fair value of the derivatives, with the counterparty, exceed a specific threshold. If the threshold is exceeded, cash is either provided by the counterparty to us if the value of the derivatives is our asset, or cash is provided by us to the counterparty if the value of the derivatives is our liability. As of June 30, 2015 , December 31, 2014 and June 30, 2014 , this threshold was not exceeded. In all instances where we are party to a master netting agreement, we offset the receivable or payable recognized upon payment of cash collateral against the fair value amounts recognized for derivative instruments that have also been offset under such master netting agreements.

FAIR VALUE MEASUREMENTS

FAIR VALUE MEASUREMENTS	6 Months Ended
	Jun. 30, 2015
Fair Value Disclosures [Abstract]
FAIR VALUE MEASUREMENTS	FAIR VALUE MEASUREMENTS Fair value is defined as the price at which an asset could be exchanged in a current transaction between knowledgeable, willing parties or the amount that would be paid to transfer a liability to a new obligor, not the amount that would be paid to settle the liability with the creditor. Where available, fair value is based on observable market prices or parameters or derived from such prices or parameters. Where observable prices or inputs are not available, valuation models are applied. These valuation techniques involve some level of management estimation and judgment, the degree of which is dependent on the price transparency for the instruments or market and the instruments’ complexity. Assets and liabilities recorded at fair value in the condensed balance sheets are categorized based upon the level of judgment associated with the inputs used to measure their fair value. Hierarchical levels, defined by ASC 820 “Fair Value Measurements and Disclosures” (ASC 820) are directly related to the amount of subjectivity associated with the inputs to fair valuation of these assets and liabilities, and are as follows: Level 1 — Inputs were unadjusted, quoted prices in active markets for identical assets or liabilities at the measurement date. Level 2 — Inputs (other than quoted prices included in Level 1) were either directly or indirectly observable for the asset or liability through correlation with market data at the measurement date and for the duration of the instrument’s anticipated life. Level 3 — Inputs reflected management’s best estimate of what market participants would use in pricing the asset or liability at the measurement date. Consideration was given to the risk inherent in the valuation technique and the risk inherent in the inputs to the model. We are required to separately disclose assets and liabilities measured at fair value on a recurring basis, from those measured at fair value on a nonrecurring basis. Nonfinancial assets measured at fair value on a nonrecurring basis are intangible assets and goodwill, which are reviewed annually in the fourth quarter and/or when circumstances or other events indicate that impairment may have occurred. Determining which hierarchical level an asset or liability falls within requires significant judgment. We evaluate our hierarchy disclosures each quarter. The following table summarizes the assets and liabilities measured at fair value in the condensed balance sheets: Fair Value Measurements Balance at June 30, 2015 Level 1 Level 2 Level 3 Total Assets ($ in millions) Interest rate swaps $ — $ 2.3 $ — $ 2.3 Liabilities Interest rate swaps $ — $ 3.1 $ — $ 3.1 Commodity forward contracts — 8.8 — 8.8 Balance at December 31, 2014 Assets Interest rate swaps $ — $ 3.5 $ — $ 3.5 Liabilities Interest rate swaps $ — $ 4.5 $ — $ 4.5 Commodity forward contracts — 8.6 — 8.6 Balance at June 30, 2014 Assets Interest rate swaps $ — $ 4.7 $ — $ 4.7 Commodity forward contracts — 0.9 — 0.9 Liabilities Interest rate swaps $ — $ 5.9 $ — $ 5.9 For the six months ended June 30, 2015 , there were no transfers into or out of Level 1 and Level 2. The following table summarizes the activity for our earn out liability measured at fair value using Level 3 inputs: June 30, 2015 2014 ($ in millions) Balance at beginning of year $ — $ 26.7 Settlements — (26.7 ) Balance at end of period $ — $ — Interest Rate Swaps The fair value of the interest rate swaps was included in other current assets, current installments of long-term debt and long-term debt as of June 30, 2015 . The fair value of the interest rate swaps was included in other assets and long-term debt as of December 31, 2014 and June 30, 2014 . These financial instruments were valued using the “income approach” valuation technique. This method used valuation techniques to convert future amounts to a single present amount. The measurement was based on the value indicated by current market expectations about those future amounts. We use interest rate swaps as a means of managing interest expense and floating interest rate exposure to optimal levels. Commodity Forward Contracts The fair value of the commodity forward contracts was classified in accrued liabilities as of June 30, 2015 , December 31, 2014 and June 30, 2014 , with unrealized gains and losses included in accumulated other comprehensive loss, net of applicable taxes. These financial instruments were valued primarily based on prices and other relevant information observable in market transactions involving identical or comparable assets or liabilities including both forward and spot prices for commodities. We use commodity forward contracts for certain raw materials and energy costs such as copper, zinc, lead, electricity and natural gas to provide a measure of stability in managing our exposure to price fluctuations. Financial Instruments The carrying values of cash and cash equivalents, restricted cash, accounts receivable and accounts payable approximated fair values due to the short-term maturities of these instruments. The fair value of our long-term debt was determined based on current market rates for debt of similar risk and maturities. The following table summarizes the fair value measurements of debt and the actual debt recorded on our condensed balance sheets: Fair Value Measurements Amount recorded Level 1 Level 2 Level 3 Total ($ in millions) Balance at June 30, 2015 $ — $ 533.3 $ 153.0 $ 686.3 $ 672.1 Balance at December 31, 2014 — 531.9 153.0 684.9 675.1 Balance at June 30, 2014 — 569.7 153.0 722.7 689.2 Earn Out On February 11, 2011 we acquired PolyOne’s 50% interest in SunBelt. With this acquisition, we agreed to a three-year earn out, which had no guaranteed minimum or maximum, based on the performance of SunBelt. The fair value of the earn out was estimated using a probability-weighted discounted cash flow model. This fair value measurement was based on significant inputs not observed in the market. Key assumptions in determining the fair value of the earn out included the discount rate and cash flow projections. The final earn out payment was made in 2014. During the six months ended June 30, 2014 , we paid $26.7 million for the earn out related to the 2013 SunBelt performance. The earn out payment for the six months ended June 30, 2014 included $14.8 million that was recognized as part of the original purchase price. The $14.8 million is included as a financing activity in the statement of cash flows. Nonrecurring Fair Value Measurements In addition to assets and liabilities that are recorded at fair value on a recurring basis, we record assets and liabilities at fair value on a nonrecurring basis as required by ASC 820. There were no assets measured at fair value on a nonrecurring basis as of June 30, 2015 , December 31, 2014 and June 30, 2014 .

RESTRUCTURING CHARGE (Tables)

RESTRUCTURING CHARGE (Tables)	6 Months Ended
	Jun. 30, 2015
Restructuring and Related Activities [Abstract]
Schedule of Restructuring Reserve by Type of Cost [Table Text Block]	The following table summarizes the activity by major component of these 2014 and 2010 restructuring actions and the remaining balances of accrued restructuring costs as of June 30, 2015 : Employee severance and job related benefits Lease and other contract termination costs Employee relocation costs Facility exit costs Write-off of equipment and facility Total ($ in millions) Balance at January 1, 2014 $ 10.2 $ — $ — $ — $ — $ 10.2 Restructuring charges: First quarter 0.2 — 0.1 0.7 — 1.0 Second quarter 1.2 — — 0.8 0.3 2.3 Amounts utilized (1.2 ) — (0.1 ) (1.5 ) (0.3 ) (3.1 ) Balance at June 30, 2014 $ 10.4 $ — $ — $ — $ — $ 10.4 Balance at January 1, 2015 $ 11.2 $ 4.5 $ — $ — $ — $ 15.7 Restructuring charges: First quarter — 0.7 0.1 0.2 0.2 1.2 Second quarter — — 0.2 0.2 0.3 0.7 Amounts utilized (4.2 ) (2.8 ) (0.3 ) (0.4 ) (0.5 ) (8.2 ) Currency translation adjustments (0.4 ) (0.1 ) — — — (0.5 ) Balance at June 30, 2015 $ 6.6 $ 2.3 $ — $ — $ — $ 8.9
Restructuring and Related Costs [Table Text Block]	The following table summarizes the cumulative restructuring charges of these 2014 and 2010 restructuring actions by major component through June 30, 2015 : Chlor Alkali Products Winchester Total Becancour Mercury ($ in millions) Write-off of equipment and facility $ 3.5 $ 17.8 $ — $ 21.3 Employee severance and job related benefits 2.3 5.6 13.1 21.0 Facility exit costs 0.2 15.6 2.1 17.9 Pension and other postretirement benefits curtailment 0.4 — 4.1 4.5 Employee relocation costs — 0.9 5.0 5.9 Lease and other contract termination costs 5.2 0.7 — 5.9 Total cumulative restructuring charges $ 11.6 $ 40.6 $ 24.3 $ 76.5

DISCONTINUED OPERATIONS DISCO27

DISCONTINUED OPERATIONS DISCONTINUED OPERATIONS (Tables)	6 Months Ended
	Jun. 30, 2015
Discontinued Operations [Abstract]
Disposal Groups, Including Discontinued Operations [Table Text Block]	Income from discontinued operations, net consisted of the following: Three Months Ended Six Months Ended 2015 2014 2015 2014 ($ in millions) Income from discontinued operations $ — $ 4.6 $ — $ 4.6 Tax provision — 3.9 — 3.9 Income from discontinued operations, net $ — $ 0.7 $ — $ 0.7

ALLOWANCE FOR DOUBTFUL ACCOUN28

ALLOWANCE FOR DOUBTFUL ACCOUNTS RECEIVABLES (Tables)	6 Months Ended
	Jun. 30, 2015
Accounts Receivable, Net [Abstract]
Allowance for Doubtful Accounts Receivable	Allowance for doubtful accounts receivable consisted of the following: June 30, 2015 2014 ($ in millions) Balance at beginning of year $ 3.0 $ 3.4 Provisions (credited) charged (0.2 ) 0.7 Write-offs, net of recoveries (0.1 ) — Balance at end of period $ 2.7 $ 4.1

INVENTORIES (Tables)

INVENTORIES (Tables)	6 Months Ended
	Jun. 30, 2015
Inventory Disclosure [Abstract]
Inventories Table	Inventories consisted of the following: June 30, December 31, June 30, ($ in millions) Supplies $ 41.6 $ 39.2 $ 43.1 Raw materials 70.1 63.3 75.6 Work in process 32.9 31.8 35.5 Finished goods 143.0 141.5 142.8 287.6 275.8 297.0 LIFO reserve (66.0 ) (65.7 ) (76.1 ) Inventories, net $ 221.6 $ 210.1 $ 220.9

OTHER ASSETS (Tables)

OTHER ASSETS (Tables)	6 Months Ended
	Jun. 30, 2015
Other Assets [Abstract]
Schedule of Other Assets	Included in other assets were the following: June 30, 2015 December 31, 2014 June 30, 2014 ($ in millions) Investments in non-consolidated affiliates $ 24.1 $ 23.3 $ 22.5 Intangible assets (less accumulated amortization of $49.9, $42.6 and $35.3) 116.2 123.5 130.8 Deferred debt issuance costs 17.0 10.3 13.9 Bleach joint venture receivable 3.8 7.8 11.7 Income tax receivable 1.5 6.6 — Interest rate swaps — 3.5 4.7 Other 16.4 16.4 16.5 Other assets $ 179.0 $ 191.4 $ 200.1

EARNINGS PER SHARE (Tables)

EARNINGS PER SHARE (Tables)	6 Months Ended
	Jun. 30, 2015
Earnings Per Share [Abstract]
Basic and Diluted Earnings Per Share Table	Three Months Ended Six Months Ended 2015 2014 2015 2014 Computation of Income per Share ($ and shares in millions, except per share data) Income from continuing operations, net $ 42.3 $ 36.6 $ 55.4 $ 66.1 Income from discontinued operations, net — 0.7 — 0.7 Net income $ 42.3 $ 37.3 $ 55.4 $ 66.8 Basic shares 77.5 78.8 77.5 79.0 Basic income per share: Income from continuing operations, net $ 0.55 $ 0.46 $ 0.71 $ 0.84 Income from discontinued operations, net — 0.01 — 0.01 Net income $ 0.55 $ 0.47 $ 0.71 $ 0.85 Diluted shares: Basic shares 77.5 78.8 77.5 79.0 Stock-based compensation 1.2 1.2 1.1 1.2 Diluted shares 78.7 80.0 78.6 80.2 Diluted income per share: Income from continuing operations, net $ 0.54 $ 0.46 $ 0.70 $ 0.82 Income from discontinued operations, net — 0.01 — 0.01 Net income $ 0.54 $ 0.47 $ 0.70 $ 0.83

SHAREHOLDERS' EQUITY (Tables)

SHAREHOLDERS' EQUITY (Tables)	6 Months Ended
	Jun. 30, 2015
Stockholders' Equity Note [Abstract]
Activity included in accumulated other comprehensive loss table	The following table represents the activity included in accumulated other comprehensive loss: Foreign Currency Translation Adjustment Unrealized Gains (Losses) on Derivative Contracts (net of taxes) Pension and Postretirement Benefits (net of taxes) Accumulated Other Comprehensive Loss ($ in millions) Balance at January 1, 2014 $ (0.5 ) $ 0.9 $ (365.5 ) $ (365.1 ) Unrealized gains (losses): First quarter 0.7 (5.7 ) — (5.0 ) Second quarter 0.3 3.7 — 4.0 Reclassification adjustments into income: First quarter — 0.6 6.5 7.1 Second quarter — 0.9 6.8 7.7 Tax benefit (provision): First quarter — 2.0 (2.5 ) (0.5 ) Second quarter — (1.8 ) (2.8 ) (4.6 ) Net Change 1.0 (0.3 ) 8.0 8.7 Balance at June 30, 2014 $ 0.5 $ 0.6 $ (357.5 ) $ (356.4 ) Balance at January 1, 2015 $ (2.3 ) $ (4.2 ) $ (436.6 ) $ (443.1 ) Unrealized (losses) gains: First quarter (1.4 ) (2.4 ) — (3.8 ) Second quarter 0.3 (2.2 ) — (1.9 ) Reclassification adjustments into income: First quarter — 1.9 8.6 10.5 Second quarter — 1.8 8.4 10.2 Tax benefit (provision): First quarter — 0.2 (3.5 ) (3.3 ) Second quarter — 0.2 (3.1 ) (2.9 ) Net Change (1.1 ) (0.5 ) 10.4 8.8 Balance at June 30, 2015 $ (3.4 ) $ (4.7 ) $ (426.2 ) $ (434.3 )

SEGMENT INFORMATION (Tables)

SEGMENT INFORMATION (Tables)	6 Months Ended
	Jun. 30, 2015
Segment Reporting [Abstract]
Segment Information	Three Months Ended Six Months Ended 2015 2014 2015 2014 Sales: ($ in millions) Chlor Alkali Products $ 294.7 $ 338.5 $ 587.4 $ 666.8 Chemical Distribution 70.3 75.6 140.1 144.8 Winchester 194.2 181.0 372.9 381.6 Intersegment sales elimination (23.8 ) (24.7 ) (47.0 ) (45.4 ) Total sales $ 535.4 $ 570.4 $ 1,053.4 $ 1,147.8 Income (loss) from continuing operations before taxes: Chlor Alkali Products $ 25.0 $ 40.8 $ 48.1 $ 75.1 Chemical Distribution 2.4 — 3.4 (0.8 ) Winchester 33.9 33.1 63.7 71.4 Corporate/other: Pension income 7.4 7.5 14.5 15.4 Environmental expense (5.1 ) (1.2 ) (5.8 ) (4.7 ) Other corporate and unallocated costs (13.2 ) (14.6 ) (35.3 ) (31.9 ) Restructuring charges (0.7 ) (2.3 ) (1.9 ) (3.3 ) Acquisition-related costs (10.5 ) (0.2 ) (20.9 ) (0.4 ) Other operating income 42.4 0.9 42.2 0.8 Interest expense (18.2 ) (9.6 ) (25.3 ) (19.3 ) Interest income 0.3 0.4 0.6 0.7 Income from continuing operations before taxes $ 63.7 $ 54.8 $ 83.3 $ 103.0

STOCK-BASED COMPENSATION (Table

STOCK-BASED COMPENSATION (Tables)	6 Months Ended
	Jun. 30, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock-based compensation expense	Stock-based compensation expense was as follows: Three Months Ended Six Months Ended 2015 2014 2015 2014 ($ in millions) Stock-based compensation $ 3.9 $ 2.1 $ 6.3 $ 5.0 Mark-to-market adjustments (3.1 ) (0.2 ) 2.2 (1.1 ) Total expense $ 0.8 $ 1.9 $ 8.5 $ 3.9
Schedule of fair value of stock options granted	The fair value of each stock option granted, which typically vests ratably over three years, but not less than one year, was estimated on the date of grant, using the Black-Scholes option-pricing model with the following weighted-average assumptions: Grant date 2015 2014 Dividend yield 2.92 % 3.13 % Risk-free interest rate 1.69 % 2.13 % Expected volatility 34 % 42 % Expected life (years) 6.0 7.0 Weighted average grant fair value (per option) $ 6.80 $ 8.34 Weighted average exercise price $ 27.40 $ 25.69 Shares granted 776,750 624,200

PENSION PLANS AND RETIREMENT 35

PENSION PLANS AND RETIREMENT BENEFITS (Tables)	6 Months Ended
	Jun. 30, 2015
Compensation and Retirement Disclosure [Abstract]
Components of Net Periodic Benefit (Income) Cost	Pension Benefits Other Postretirement Benefits Three Months Ended Three Months Ended 2015 2014 2015 2014 Components of Net Periodic Benefit (Income) Cost ($ in millions) Service cost $ 1.3 $ 1.3 $ 0.3 $ 0.3 Interest cost 20.6 21.8 0.7 0.8 Expected return on plans’ assets (35.7 ) (34.9 ) — — Amortization of prior service cost 0.1 0.1 — (0.1 ) Recognized actuarial loss 7.4 5.8 0.9 1.0 Net periodic benefit (income) cost $ (6.3 ) $ (5.9 ) $ 1.9 $ 2.0 Pension Benefits Other Postretirement Six Months Ended Six Months Ended 2015 2014 2015 2014 Components of Net Periodic Benefit (Income) Cost ($ in millions) Service cost $ 2.9 $ 2.7 $ 0.6 $ 0.6 Interest cost 41.2 43.4 1.3 1.5 Expected return on plans’ assets (71.3 ) (69.8 ) — — Amortization of prior service cost 0.1 0.1 — (0.1 ) Recognized actuarial loss 14.9 11.3 1.8 2.0 Curtailment 0.1 — 0.1 — Net periodic benefit (income) cost $ (12.1 ) $ (12.3 ) $ 3.8 $ 4.0

INCOME TAXES (Tables)

INCOME TAXES (Tables)	6 Months Ended
	Jun. 30, 2015
Income Tax Disclosure [Abstract]
Effective Tax Rate Reconciliation (Percent)	The following table accounts for the difference between the actual tax provision and the amounts obtained by applying the statutory U.S. federal income tax rate of 35.0% to income before taxes. Three Months Ended Six Months Ended Effective Tax Rate Reconciliation (Percent) 2015 2014 2015 2014 Statutory federal tax rate 35.0 % 35.0 % 35.0 % 35.0 % Foreign rate differential (0.2 ) (0.2 ) (0.2 ) (0.1 ) Domestic manufacturing/export tax incentive (1.2 ) (2.3 ) (1.6 ) (2.2 ) Return to provision (1.6 ) (2.0 ) (1.3 ) (1.0 ) Dividends paid to CEOP (0.6 ) (0.4 ) (0.6 ) (0.4 ) State income taxes, net 0.8 2.0 0.8 2.2 Remeasurement of deferred taxes 0.4 1.0 0.3 0.4 Change in valuation allowance 1.3 — 1.3 1.9 Other, net (0.3 ) 0.1 (0.2 ) — Effective tax rate 33.6 % 33.2 % 33.5 % 35.8 %
Unrecognized Tax Benefits	The amount of unrecognized tax benefits was as follows: June 30, 2015 2014 ($ in millions) Balance at beginning of year $ 36.1 $ 34.5 Increases for prior year tax positions — 0.2 Increases for current year tax positions — 2.2 Settlement with taxing authorities (1.1 ) (0.4 ) Balance at end of period $ 35.0 $ 36.5
Tax Returns Subject to Examination	For our primary tax jurisdictions, the tax years that remain subject to examination are as follows: Tax Years U.S. federal income tax 2008; 2010 – 2014 U.S. state income tax 2006 – 2014 Canadian federal income tax 2010 – 2014 Canadian provincial income tax 2008 – 2014

DERIVATIVE FINANCIAL INSTRUME37

DERIVATIVE FINANCIAL INSTRUMENTS (Tables)	6 Months Ended
	Jun. 30, 2015
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of derivative instruments	We had the following notional amount of outstanding commodity forward contracts that were entered into to hedge forecasted purchases: June 30, 2015 December 31, 2014 June 30, 2014 ($ in millions) Copper $ 50.3 $ 62.7 $ 47.1 Zinc 5.8 6.8 5.7 Lead 15.0 14.1 18.6 Natural gas 4.7 5.7 10.3
Summary of location and fair value of derivative instruments on condensed balance sheets	The following table summarizes the location and fair value of the derivative instruments on our condensed balance sheets. The table disaggregates our net derivative assets and liabilities into gross components on a contract-by-contract basis before giving effect to master netting arrangements: Asset Derivatives Liability Derivatives Fair Value Fair Value Derivatives Designated as Hedging Instruments Balance Sheet Location June 30, 2015 December 31, 2014 June 30, 2014 Balance Sheet Location June 30, 2015 December 31, 2014 June 30, 2014 ($ in millions) ($ in millions) Interest rate contracts Other current assets $ — $ — $ — Current installments of long-term debt $ 2.5 $ — $ — Interest rate contracts Other assets — — — Long-term debt 0.6 4.5 5.9 Commodity contracts – losses Other current assets — — (2.1 ) Accrued liabilities 8.1 7.2 — Commodity contracts – gains Other current assets — — 2.8 Accrued liabilities (0.1 ) (0.1 ) — $ — $ — $ 0.7 $ 11.1 $ 11.6 $ 5.9 Derivatives Not Designated as Hedging Instruments Interest rate contracts - gains Other current assets $ 3.1 $ — $ — Accrued liabilities $ — $ — $ — Interest rate contracts - losses Other current assets (0.8 ) — — Accrued liabilities — — — Interest rate contracts – gains Other assets — 4.3 6.3 Other liabilities — — — Interest rate contracts – losses Other assets — (0.8 ) (1.6 ) Other liabilities — — — Commodity contracts – losses Other current assets — — (0.1 ) Accrued liabilities 0.8 1.5 — Commodity contracts – gains Other current assets — — 0.3 Accrued liabilities — — — $ 2.3 $ 3.5 $ 4.9 $ 0.8 $ 1.5 $ — Total derivatives (1) $ 2.3 $ 3.5 $ 5.6 $ 11.9 $ 13.1 $ 5.9 (1) Does not include the impact of cash collateral received from or provided to counterparties.
Summary of effects of derivative instruments on condensed statements of income	The following table summarizes the effects of derivative instruments on our condensed statements of income: Amount of Gain (Loss) Amount of Gain (Loss) Three Months Ended Six Months Ended Location of Gain (Loss) 2015 2014 2015 2014 Derivatives – Cash Flow Hedges ($ in millions) Recognized in other comprehensive loss (effective portion) ——— $ (2.2 ) $ 3.7 $ (4.6 ) $ (2.0 ) Reclassified from accumulated other comprehensive loss into income (effective portion) Cost of goods sold $ (1.8 ) $ (0.9 ) $ (3.7 ) $ (1.5 ) Derivatives – Fair Value Hedges Interest rate contracts Interest expense $ 0.7 $ 0.7 $ 1.4 $ 1.4 Derivatives Not Designated as Hedging Instruments Commodity contracts Cost of goods sold $ 0.1 $ — $ (1.6 ) $ 0.6

FAIR VALUE MEASUREMENTS (Tables

FAIR VALUE MEASUREMENTS (Tables)	6 Months Ended
	Jun. 30, 2015
Fair Value Disclosures [Abstract]
Table of financial instruments measured at fair value	The following table summarizes the assets and liabilities measured at fair value in the condensed balance sheets: Fair Value Measurements Balance at June 30, 2015 Level 1 Level 2 Level 3 Total Assets ($ in millions) Interest rate swaps $ — $ 2.3 $ — $ 2.3 Liabilities Interest rate swaps $ — $ 3.1 $ — $ 3.1 Commodity forward contracts — 8.8 — 8.8 Balance at December 31, 2014 Assets Interest rate swaps $ — $ 3.5 $ — $ 3.5 Liabilities Interest rate swaps $ — $ 4.5 $ — $ 4.5 Commodity forward contracts — 8.6 — 8.6 Balance at June 30, 2014 Assets Interest rate swaps $ — $ 4.7 $ — $ 4.7 Commodity forward contracts — 0.9 — 0.9 Liabilities Interest rate swaps $ — $ 5.9 $ — $ 5.9
Activity summary of financial instruments measure at fair value using level 3 inputs	The following table summarizes the activity for our earn out liability measured at fair value using Level 3 inputs: June 30, 2015 2014 ($ in millions) Balance at beginning of year $ — $ 26.7 Settlements — (26.7 ) Balance at end of period $ — $ —
Fair value of debt table	The following table summarizes the fair value measurements of debt and the actual debt recorded on our condensed balance sheets: Fair Value Measurements Amount recorded Level 1 Level 2 Level 3 Total ($ in millions) Balance at June 30, 2015 $ — $ 533.3 $ 153.0 $ 686.3 $ 672.1 Balance at December 31, 2014 — 531.9 153.0 684.9 675.1 Balance at June 30, 2014 — 569.7 153.0 722.7 689.2

PROPOSED ACQUISITION (Details)

PROPOSED ACQUISITION (Details) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Jun. 23, 2015	Jun. 24, 2014
Schedule of Expected Acquisition Related Costs [Line Items]
Common Stock Acquired By Third Party	87.5		87.5
Percentage of Voting Interests Acquired by Third Party	52.70%		52.70%
Percentage of Voting Interests Retained by Existing Stockholders	47.30%		47.30%
Cash and Debt Distribution	$ 2,030		$ 2,030
Cash Portion of Cash and Debt Distribution	875		875
Delayed-Draw Term Loan Facility of Third Party					$ 1,050
Senior Credit Facility					1,850	$ 415
Line of Credit Facility, Maximum Borrowing Capacity					500	$ 265
Delayed-Draw Term Loan Facility					1,350
SubfacilityOfSeniorCreditFacitility					$ 100
Annual Required Principal Payment (Percent) in Years 1 and 2					5.00%
Annual Required Principal Payment (Percent) in Year 3					7.50%
Annual Required Principal Payment (Percent) in Years 4 and 5					10.00%
Payments of Debt Issuance Costs			18.7	$ 1.2
Change in Control Mandatory Acceleration of Expenses Under the Non-Qualified Pension Plan			50
Acquisition-related costs	10.5	$ 0.2	20.9	$ 0.4
Amortization of Financing Costs	$ 11.6		12
Minimum
Schedule of Expected Acquisition Related Costs [Line Items]
Advisory, Legal, Accounting, Integration and Other Professional Fees			55
Financing Fees			25
Maximum
Schedule of Expected Acquisition Related Costs [Line Items]
Advisory, Legal, Accounting, Integration and Other Professional Fees			60
Financing Fees			$ 30

RESTRUCTURING CHARGE (Details T

RESTRUCTURING CHARGE (Details Textuals) $ in Millions	3 Months Ended					6 Months Ended		7 Months Ended	55 Months Ended	56 Months Ended
	Jun. 30, 2015USD ($)	Mar. 31, 2015USD ($)	Dec. 31, 2014USD ($)	Jun. 30, 2014USD ($)	Mar. 31, 2014USD ($)	Jun. 30, 2015USD ($)	Jun. 30, 2014USD ($)	Jun. 30, 2015USD ($)	Jun. 30, 2015USD ($)	Jun. 30, 2015USD ($)	Dec. 12, 2014T	Dec. 31, 2013USD ($)	Dec. 31, 2011USD ($)	Dec. 09, 2010T
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 0.7	$ 1.2		$ 2.3	$ 1	$ 1.9	$ 3.3			$ 76.5
Inception to date Amounts Utilized (cash)										34.6
Inception to date Amounts Utilized (non-cash)										32.5
Accrued restructuring costs	8.9		$ 15.7	10.4		8.9	10.4	$ 8.9	$ 8.9	8.9		$ 10.2
Chlor Alkali Products Becancour
Restructuring Cost and Reserve [Line Items]
Tonnage reduction in chlor alkali manufacutring capactiy (in tons) | T											185,000
Restructuring charges	0.4		$ 10			1.6		11.6
Additional restructuring and related expected cost	4					4		4	4	4
Chlor Alkali Products Mercury
Restructuring Cost and Reserve [Line Items]
Restructuring charges				1.7			2.3		40.6
Previous mercury cell capacity tonnage at Charleston, TN facility (in tons) | T														260,000
Membrane capacity tonnage capability at Charleston, TN facility (in tons) | T														200,000
Winchester Segment
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0.3			$ 0.6		0.3	$ 1			24.3
Additional restructuring and related expected cost	2					2		2	2	2
Estimated Project Cost For Plant Relocation	110					110		110	110	110
Estimated Capital Spending For Facility Relocation	$ 80					80		$ 80	$ 80	$ 80
Government Grants for Facility Relocation Capital Spending													$ 31
Winchester Segment | Minimum
Restructuring Cost and Reserve [Line Items]
Forecast to reduce Winchester's annual operating costs						35
Winchester Segment | Maximum
Restructuring Cost and Reserve [Line Items]
Forecast to reduce Winchester's annual operating costs						$ 40

RESTRUCTURING CHARGE (Details 1

RESTRUCTURING CHARGE (Details 1) - USD ($) $ in Millions	3 Months Ended				6 Months Ended		56 Months Ended
	Jun. 30, 2015	Mar. 31, 2015	Jun. 30, 2014	Mar. 31, 2014	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Dec. 31, 2014	Dec. 31, 2013
Restructuring Cost and Reserve [Line Items]
Accrued restructuring costs	$ 8.9		$ 10.4		$ 8.9	$ 10.4	$ 8.9	$ 15.7	$ 10.2
Restructuring charges	0.7	$ 1.2	2.3	$ 1	1.9	3.3	76.5
Amounts utilized					(8.2)	(3.1)
Currency translation adjustments					(0.5)
Employee severance and job related benefits
Restructuring Cost and Reserve [Line Items]
Accrued restructuring costs	6.6		10.4		6.6	10.4	6.6	11.2	10.2
Restructuring charges	0	0	1.2	0.2			21
Amounts utilized					(4.2)	(1.2)
Currency translation adjustments					(0.4)
Lease and other contract termination costs
Restructuring Cost and Reserve [Line Items]
Accrued restructuring costs	2.3		0		2.3	0	2.3	4.5	0
Restructuring charges	0	0.7	0	0			5.9
Amounts utilized					(2.8)	0
Currency translation adjustments					(0.1)
Employee relocation costs
Restructuring Cost and Reserve [Line Items]
Accrued restructuring costs	0		0		0	0	0	0	0
Restructuring charges	0.2	0.1	0	0.1			5.9
Amounts utilized					(0.3)	(0.1)
Currency translation adjustments					0
Facility exit costs (asset retirement obligations)
Restructuring Cost and Reserve [Line Items]
Accrued restructuring costs	0		0		0	0	0	0	0
Restructuring charges	0.2	0.2	0.8	0.7			17.9
Amounts utilized					(0.4)	(1.5)
Currency translation adjustments					0
Write-off of Equipment and Facility
Restructuring Cost and Reserve [Line Items]
Accrued restructuring costs	0		0		0	0	$ 0	$ 0	$ 0
Restructuring charges	$ 0.3	$ 0.2	$ 0.3	$ 0
Amounts utilized					(0.5)	$ (0.3)
Currency translation adjustments					$ 0

RESTRUCTURING CHARGE (Details 2

RESTRUCTURING CHARGE (Details 2) - USD ($) $ in Millions	3 Months Ended					6 Months Ended		7 Months Ended	55 Months Ended	56 Months Ended
	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Jun. 30, 2014	Mar. 31, 2014	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2015	Jun. 30, 2015
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 0.7	$ 1.2		$ 2.3	$ 1	$ 1.9	$ 3.3			$ 76.5
Write-off of equipment and facility
Restructuring Cost and Reserve [Line Items]
Restructuring charges										21.3
Employee severance and job related benefits
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0	0		1.2	0.2					21
Facility exit costs (asset retirement obligations)
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0.2	0.2		0.8	0.7					17.9
Pension and other postretirement benefits curtailment
Restructuring Cost and Reserve [Line Items]
Restructuring charges										4.5
Employee relocation costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0.2	0.1		0	0.1					5.9
Lease and other contract termination costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0	$ 0.7		0	$ 0					5.9
Chlor Alkali Products Becancour
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0.4		$ 10			1.6		$ 11.6
Chlor Alkali Products Becancour | Write-off of equipment and facility
Restructuring Cost and Reserve [Line Items]
Restructuring charges								3.5
Chlor Alkali Products Becancour | Employee severance and job related benefits
Restructuring Cost and Reserve [Line Items]
Restructuring charges								2.3
Chlor Alkali Products Becancour | Facility exit costs (asset retirement obligations)
Restructuring Cost and Reserve [Line Items]
Restructuring charges								0.2
Chlor Alkali Products Becancour | Pension and other postretirement benefits curtailment
Restructuring Cost and Reserve [Line Items]
Restructuring charges								0.4
Chlor Alkali Products Becancour | Employee relocation costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges								0
Chlor Alkali Products Becancour | Lease and other contract termination costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges								$ 5.2
Chlor Alkali Products Mercury
Restructuring Cost and Reserve [Line Items]
Restructuring charges				1.7			2.3		$ 40.6
Chlor Alkali Products Mercury | Write-off of equipment and facility
Restructuring Cost and Reserve [Line Items]
Restructuring charges									17.8
Chlor Alkali Products Mercury | Employee severance and job related benefits
Restructuring Cost and Reserve [Line Items]
Restructuring charges									5.6
Chlor Alkali Products Mercury | Facility exit costs (asset retirement obligations)
Restructuring Cost and Reserve [Line Items]
Restructuring charges									15.6
Chlor Alkali Products Mercury | Pension and other postretirement benefits curtailment
Restructuring Cost and Reserve [Line Items]
Restructuring charges									0
Chlor Alkali Products Mercury | Employee relocation costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges									0.9
Chlor Alkali Products Mercury | Lease and other contract termination costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges									$ 0.7
Winchester Segment
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 0.3			$ 0.6		$ 0.3	$ 1			24.3
Winchester Segment | Write-off of equipment and facility
Restructuring Cost and Reserve [Line Items]
Restructuring charges										0
Winchester Segment | Employee severance and job related benefits
Restructuring Cost and Reserve [Line Items]
Restructuring charges										13.1
Winchester Segment | Facility exit costs (asset retirement obligations)
Restructuring Cost and Reserve [Line Items]
Restructuring charges										2.1
Winchester Segment | Pension and other postretirement benefits curtailment
Restructuring Cost and Reserve [Line Items]
Restructuring charges										4.1
Winchester Segment | Employee relocation costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges										5
Winchester Segment | Lease and other contract termination costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges										$ 0

DISCONTINUED OPERATIONS DISCO43

DISCONTINUED OPERATIONS DISCONTINUED OPERATIONS (Details Textuals) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Discontinued Operations [Abstract]
Payment of Indemnity Obligations		$ 5.5
Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax	$ 0	4.6	$ 0	$ 4.6
Expense recorded due to changes in tax contingencies from discontinued operations		$ 2.2		$ 2.2

DISCONTINUED OPERATIONS DISCO44

DISCONTINUED OPERATIONS DISCONTINUED OPERATIONS (Details) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Discontinued Operations [Abstract]
Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax	$ 0	$ 4.6	$ 0	$ 4.6
Discontinued Operation, Tax Effect of Discontinued Operation	0	3.9	0	3.9
Income from discontinued operations, net	$ 0	$ 0.7	$ 0	$ 0.7

ALLOWANCE FOR DOUBTFUL ACCOUN45

ALLOWANCE FOR DOUBTFUL ACCOUNTS RECEIVABLES (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Allowance for Doubtful Accounts [Roll Forward]
Balance at beginning of year			$ 3	$ 3.4
Provisions (credited) charged	$ (0.4)	$ 0.4	(0.2)	0.7
Write-offs, net of recoveries			(0.1)	0
Balance at end of period	$ 2.7	$ 4.1	$ 3	$ 3.4

INVENTORIES (Details)

INVENTORIES (Details) - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014
Inventory Disclosure [Abstract]
Supplies	$ 41.6	$ 39.2	$ 43.1
Raw materials	70.1	63.3	75.6
Work in process	32.9	31.8	35.5
Finished goods	143	141.5	142.8
Inventory, gross	287.6	275.8	297
LIFO reserve	(66)	(65.7)	(76.1)
Inventories, net	$ 221.6	$ 210.1	$ 220.9

OTHER ASSETS (Details)

OTHER ASSETS (Details) - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014
Other Assets [Abstract]
Investments in non-consolidated affiliates	$ 24.1	$ 23.3	$ 22.5
Intangible assets (less accumulated amortization of $49.9, $42.6 and $35.3)	116.2	123.5	130.8
Deferred debt issuance costs	17	10.3	13.9
Long term receivable from the sale of an equity method investment	3.8	7.8	11.7
Income taxes receivable, noncurrent	1.5	6.6	0
Interest rate swaps	0	3.5	4.7
Other	16.4	16.4	16.5
Other assets	179	191.4	200.1
Intangible Assets accumulated amortization	$ 49.9	$ 42.6	$ 35.3

EARNINGS PER SHARE (Details)

EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Earnings Per Share [Abstract]
Income from continuing operations, net	$ 42.3	$ 36.6	$ 55.4	$ 66.1
Income from discontinued operations, net	0	0.7	0	0.7
Net income	$ 42.3	$ 37.3	$ 55.4	$ 66.8
Basic shares (in shares)	77.5	78.8	77.5	79
Earnings Per Share, Basic [Abstract]
Income from continuing operations, net	$ 0.55	$ 0.46	$ 0.71	$ 0.84
Income from discontinued operations, net	0	0.01	0	0.01
Basic net income per share (in dollars per share)	$ 0.55	$ 0.47	$ 0.71	$ 0.85
Earnings Per Share, Diluted [Abstract]
Basic shares (in shares)	77.5	78.8	77.5	79
Stock-based compensation (in shares)	1.2	1.2	1.1	1.2
Diluted shares (in shares)	78.7	80	78.6	80.2
Income from continuing operations, net	$ 0.54	$ 0.46	$ 0.70	$ 0.82
Income from discontinued operations, net	0	0.01	0	0.01
Diluted net income per share (in dollars per share)	$ 0.54	$ 0.47	$ 0.70	$ 0.83
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	0.8	0.6	1.4	0.6

ENVIRONMENTAL (Details)

ENVIRONMENTAL (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Environmental Remediation Obligations [Abstract]
Reserves for future environmental expenditures - total	$ 137.9	$ 142.3	$ 137.9	$ 142.3	$ 138.3
Reserves for environmental expenditures - noncurrent	118.9	124.3	118.9	124.3	$ 119.3
Environmental Remediation Expense	$ 5.1	$ 1.2	$ 5.8	$ 4.7

COMMITMENTS AND CONTINGENCIES (

COMMITMENTS AND CONTINGENCIES (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014
Commitments and Contingencies Disclosure [Abstract]
Legal action liabilities	$ 22.4	$ 22.4	$ 22.1	$ 23.8
Insurance Recoveries	52.2
Reduction in Cost of Goods Sold Due to Insurance Recoveries	9
Reduction in Selling and Administration Due to Insurance Recoveries	0.9
Gain in Other Operating Income due to Insurance Recoveries	$ 42.3
Proceeds from Property Damage Portion of Insurance Recoveries		$ 24

SHAREHOLDERS' EQUITY (Details)

SHAREHOLDERS' EQUITY (Details) - USD ($) shares in Millions, $ in Millions	3 Months Ended				6 Months Ended		14 Months Ended
	Jun. 30, 2015	Mar. 31, 2015	Jun. 30, 2014	Mar. 31, 2014	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Apr. 24, 2014
Stockholders' Equity Note [Abstract]
Authorized share repurchase program (in shares)								8
Stock Repurchase Program, Period in Force (in Years)							3 years
Common stock repurchased and retired (in shares)					0	(1.1)
Stock Repurchased and Retired During Period, Value					$ 0	$ 29.7
Total repurchased shares under this program (in shares)							1.9
Remaining shares authorized to be purchased (in shares)	6.1				6.1		6.1
Stock options exercised					0.1	0.3
Total value of stock options exercised					$ 3.1	$ 7.3
Foreign Currency Translation Adjustment [Roll Forward]
Beginning Balance		$ (2.3)		$ (0.5)	(2.3)	(0.5)
Unrealized Gain (Loss), before Reclassification Adjustments and Tax	$ 0.3	(1.4)	$ 0.3	0.7
Net Change in Foreign Currency Translation Adjustment					(1.1)	1
Ending Balance	(3.4)		0.5		(3.4)	0.5	$ (3.4)
Unrealized Gains (Losses) on Derivative Contracts (net of taxes) [Roll Forward]
Beginning Balance		(4.2)		0.9	(4.2)	0.9
Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax	(2.2)	(2.4)	3.7	(5.7)
Reclassification Adjustment from AOCI on Derivatives, before Tax	1.8	1.9	0.9	0.6
Derivatives Qualifying as Hedges, Tax	0.2	0.2	(1.8)	2
Net Change in Derivatives Qualifying as Hedges, Net of Tax	(0.2)		2.8		(0.5)	(0.3)
Ending Balance	(4.7)		0.6		(4.7)	0.6	(4.7)
Pension and Postretirement Benefits (net of taxes) [Roll Forward]
Beginning Balance		(436.6)		(365.5)	(436.6)	(365.5)
Pension and Other Postretirement Benefit Plans, Adjustment, before Reclassification Adjustments and Tax	0	0	0	0
Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, before Tax	8.4	8.6	6.8	6.5
Deferred Tax Benefit (Provision) on Pension and Other Postretirement Benefit Plans	(3.1)	(3.5)	(2.8)	(2.5)
Net Change in Pension and Other Postretirement Benefit Plans, Net of Tax					10.4	8
Ending Balance	(426.2)		(357.5)		(426.2)	(357.5)	(426.2)
Accumulated Other Comprehensive Loss [Roll Forward]
Beginning Balance		(443.1)		(365.1)	(443.1)	(365.1)
Other Comprehensive Income (Loss), Net Gain (Loss) Recognized, Before Tax	(1.9)	(3.8)	4	(5)
Reclassification Adjustment from AOCI, Before Tax	10.2	10.5	7.7	7.1
Other Comprehensive Income (Loss), Tax	(2.9)	$ (3.3)	(4.6)	$ (0.5)
Other Comprehensive Income (Loss), Net of Tax					8.8	8.7
Ending Balance	$ (434.3)		$ (356.4)		$ (434.3)	$ (356.4)	$ (434.3)

SEGMENT INFORMATION (Details)

SEGMENT INFORMATION (Details) - USD ($) $ in Millions	3 Months Ended				6 Months Ended		56 Months Ended
	Jun. 30, 2015	Mar. 31, 2015	Jun. 30, 2014	Mar. 31, 2014	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015
Segment Reporting Information [Line Items]
Total sales	$ 535.4		$ 570.4		$ 1,053.4	$ 1,147.8
Income before taxes [Abstract]
Income from continuing operations before taxes	63.7		54.8		83.3	103
Restructuring charges	(0.7)	$ (1.2)	(2.3)	$ (1)	(1.9)	(3.3)	$ (76.5)
Acquisition-related costs	10.5		0.2		20.9	0.4
Other operating income	42.4		0.9		42.2	0.8
Interest expense	(18.2)		(9.6)		(25.3)	(19.3)
Interest income	0.3		0.4		0.6	0.7
Chlor Alkali Products
Segment Reporting Information [Line Items]
Total sales	294.7		338.5		587.4	666.8
Income before taxes [Abstract]
Income from continuing operations before taxes	25		40.8		48.1	75.1
Chemical Distribution
Segment Reporting Information [Line Items]
Total sales	70.3		75.6		140.1	144.8
Income before taxes [Abstract]
Income from continuing operations before taxes	2.4		0		3.4	(0.8)
Winchester
Segment Reporting Information [Line Items]
Total sales	194.2		181		372.9	381.6
Income before taxes [Abstract]
Income from continuing operations before taxes	33.9		33.1		63.7	71.4
Intersegment Elimination
Segment Reporting Information [Line Items]
Total sales	(23.8)		(24.7)		(47)	(45.4)
Corporate/Other
Income before taxes [Abstract]
Pension income	7.4		7.5		14.5	15.4
Environmental expense	(5.1)		(1.2)		(5.8)	(4.7)
Other corporate and unallocated costs	(13.2)		(14.6)		(35.3)	(31.9)
Restructuring charges	(0.7)		(2.3)		(1.9)	(3.3)
Acquisition-related costs	$ 10.5		$ 0.2		$ 20.9	$ 0.4

STOCK-BASED COMPENSATION (Detai

STOCK-BASED COMPENSATION (Details 1) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Allocated Share-based Compensation Expense	$ 3.9	$ 2.1	$ 6.3	$ 5
Mark-to-market adjustments	(3.1)	(0.2)	2.2	(1.1)
Total expense	$ 0.8	$ 1.9	$ 8.5	$ 3.9

STOCK-BASED COMPENSATION (Det54

STOCK-BASED COMPENSATION (Details 2) - $ / shares	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Dividend yield	2.92%	3.13%
Risk-free interest rate	1.69%	2.13%
Expected volatility	34.00%	42.00%
Fair Value Assumptions, Expected Term, Simplified Method	6	7
Weighted average grant fair value (per option)	$ 6.80	$ 8.34
Weighted average exercise price	$ 27.40	$ 25.69
Shares granted	776,750	624,200

PENSION PLANS AND RETIREMENT 55

PENSION PLANS AND RETIREMENT BENEFITS (Details Textuals) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Compensation and Retirement Disclosure [Abstract]
Contribution to an individual retirement account as a percentage of employee's eligible compensation under age 45 (in hundredths)	5.00%		5.00%
Contribution to an individual retirement account as a percentage of employee's eligible compensation age 45 and older (in hundredths)	7.50%		7.50%
Defined contribution pension plans expense	$ 4.6	$ 4.3	$ 8.9	$ 8.4
Curtailments			(0.2)
Employer's contribution to defined benefit pension			$ 0.3	$ 0.4

PENSION PLANS AND RETIREMENT 56

PENSION PLANS AND RETIREMENT BENEFITS (Details 1) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Curtailments			$ (0.2)
Pension Benefits
Service Cost	$ 1.3	$ 1.3	2.9	$ 2.7
Interest Cost	20.6	21.8	41.2	43.4
Expected return on plans' assets	(35.7)	(34.9)	(71.3)	(69.8)
Amortization of Prior Service Cost (Credit)	0.1	0.1	0.1	0.1
Recognized acturial loss	7.4	5.8	14.9	11.3
Curtailments			0.1	0
Net periodic benefit (income) cost	(6.3)	(5.9)	(12.1)	(12.3)
Other Postretirement Benefits
Service Cost	0.3	0.3	0.6	0.6
Interest Cost	0.7	0.8	1.3	1.5
Expected return on plans' assets	0	0	0	0
Amortization of Prior Service Cost (Credit)	0	(0.1)	0	(0.1)
Recognized acturial loss	0.9	1	1.8	2
Curtailments			0.1	0
Net periodic benefit (income) cost	$ 1.9	$ 2	$ 3.8	$ 4

INCOME TAXES (Details Textuals)

INCOME TAXES (Details Textuals) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014	Dec. 31, 2013
Income Tax Examination [Line Items]
Statutory federal tax rate	35.00%	35.00%	35.00%	35.00%
Return to Provision Adjustment	$ 1	$ 1.1	$ 1	$ 1.1
Remeasurement of Deferred Taxes	0.3	0.5	0.3	0.5
Valuation Allowance, Deferred Tax Asset, Change in Amount				1.6
Income taxes receivable, noncurrent	1.5	0	1.5	0	$ 6.6
Unrecognized Tax Benefits	35	36.5	35	36.5	$ 36.1	$ 34.5
Impact on the effective tax rate, if recognized	33.8	31.5	33.8	31.5
Expense recorded due to changes in tax contingencies from discontinued operations		$ 2.2		$ 2.2
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit	$ 6.3		$ 6.3
Internal Revenue Service (IRS) | Early Open Year
Income Tax Examination [Line Items]
Open Tax Year			2,008
Internal Revenue Service (IRS) | Late Range Minimum
Income Tax Examination [Line Items]
Open Tax Year			2,010
Internal Revenue Service (IRS) | Late Range Maximum
Income Tax Examination [Line Items]
Open Tax Year			2,014
State and Local Jurisdiction | Minimum
Income Tax Examination [Line Items]
Open Tax Year			2,006
State and Local Jurisdiction | Maximum
Income Tax Examination [Line Items]
Open Tax Year			2,014
Foreign Country | Minimum
Income Tax Examination [Line Items]
Open Tax Year			2,010
Foreign Country | Maximum
Income Tax Examination [Line Items]
Open Tax Year			2,014
Canadian Provincial Income Tax | Minimum
Income Tax Examination [Line Items]
Open Tax Year			2,008
Canadian Provincial Income Tax | Maximum
Income Tax Examination [Line Items]
Open Tax Year			2,014

INCOME TAXES (Details 1)

INCOME TAXES (Details 1)	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Income Tax Contingency [Line Items]
Statutory federal tax rate	35.00%	35.00%	35.00%	35.00%
Foreign rate differential	(0.20%)	(0.20%)	(0.20%)	(0.10%)
Domestic manufacturing/export tax incentive	(1.20%)	(2.30%)	(1.60%)	(2.20%)
Return to provision	(1.60%)	(2.00%)	(1.30%)	(1.00%)
Dividends paid to CEOP	(0.60%)	(0.40%)	(0.60%)	(0.40%)
State income taxes, net	0.80%	2.00%	0.80%	2.20%
Remeasurement of deferred taxes	0.40%	1.00%	0.30%	0.40%
Change in valuation allowance	1.30%	0.00%	1.30%	1.90%
Other, net	(0.30%)	0.10%	(0.20%)	0.00%
Effective tax rate	33.60%	33.20%	33.50%	35.80%

INCOME TAXES (Details 2)

INCOME TAXES (Details 2) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014	Dec. 31, 2013
Reconciliation of Unrecognized Tax Benefits [Roll Forward]
Unrecognized Tax Benefits	$ 35	$ 36.5	$ 36.1	$ 34.5
Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions	0	0.2
Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions	0	2.2
Settlement with taxing authorities	$ (1.1)	$ (0.4)

DERIVATIVE FINANCIAL INSTRUME60

DERIVATIVE FINANCIAL INSTRUMENTS (Details Textuals) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014	Jun. 30, 2012	Oct. 31, 2011	Dec. 22, 1997
Cash flow hedges [Abstract]
Commodity forward contracts with Wells Fargo	$ 47.1		$ 47.1
Commodity forward contracts with Citibank	28.7		28.7
Cash Flow Hedges Derivative Instruments at Fair Value, Net	8		8
Cash Flow Hedge Gain (Loss) to be Reclassified wihtin Twelve Months			3.6
Fair value hedges [Abstract]
Amount of terminated interest rate swaps						$ 73.1
Gain on terminated interest rate swaps	0.6		0.6			$ 2.2
Series O Face Amount								$ 97.5
Series G Face Amount								$ 97.5
Interest Rate on SunBelt Notes								7.23%
Gain (Loss) on Cash Flow Hedge Ineffectiveness, Net	0	$ 0	0	$ 0
Variable Interest Rate Swaps $125M
Derivative [Line Items]
Notional amount	125		125
Amount of gain included in long-term debt	2.5		2.5				$ 11
Fixed Interest Rate Swaps $125M
Derivative [Line Items]
Notional amount	125		125
Interest Rate Swaps Designated As Fair Value Hedges
Derivative [Line Items]
Notional amount	$ 0	$ 0	$ 0	$ 0	$ 0

DERIVATIVE FINANCIAL INSTRUME61

DERIVATIVE FINANCIAL INSTRUMENTS (Details 1) - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014
Copper Commodity Forward Contracts
Derivative [Line Items]
Notional amount	$ 50.3	$ 62.7	$ 47.1
Zinc Commodity Forward Contracts
Derivative [Line Items]
Notional amount	5.8	6.8	5.7
Lead Commodity Forward Contracts
Derivative [Line Items]
Notional amount	15	14.1	18.6
Natural Gas Commodity Forward Contracts
Derivative [Line Items]
Notional amount	$ 4.7	$ 5.7	$ 10.3

DERIVATIVE FINANCIAL INSTRUME62

DERIVATIVE FINANCIAL INSTRUMENTS (Details 2) - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014
Derivatives, Fair Value [Line Items]
Asset derivatives	$ 2.3	$ 3.5	$ 5.6
Liability derivatives	11.9	13.1	5.9
Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Asset derivatives	0	0	0.7
Liability derivatives	11.1	11.6	5.9
Designated as Hedging Instrument | Interest Rate Contract Gains | Other Current Assets
Derivatives, Fair Value [Line Items]
Asset derivatives	0	0	0
Designated as Hedging Instrument | Interest Rate Contract Gains | Other Assets
Derivatives, Fair Value [Line Items]
Asset derivatives	0	0	0
Designated as Hedging Instrument | Interest Rate Contract Loss | Current Installments of Long-term Debt
Derivatives, Fair Value [Line Items]
Liability derivatives	2.5	0	0
Designated as Hedging Instrument | Interest Rate Contract Loss | Long-term Debt
Derivatives, Fair Value [Line Items]
Liability derivatives	0.6	4.5	5.9
Designated as Hedging Instrument | Commodity Contracts Losses | Other Current Assets
Derivatives, Fair Value [Line Items]
Asset derivatives	0	0	(2.1)
Designated as Hedging Instrument | Commodity Contracts Losses | Accrued Liabilities
Derivatives, Fair Value [Line Items]
Liability derivatives	8.1	7.2	0
Designated as Hedging Instrument | Commodity Contracts Gains | Other Current Assets
Derivatives, Fair Value [Line Items]
Asset derivatives	0	0	2.8
Designated as Hedging Instrument | Commodity Contracts Gains | Accrued Liabilities
Derivatives, Fair Value [Line Items]
Liability derivatives	(0.1)	(0.1)	0
Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Asset derivatives	2.3	3.5	4.9
Liability derivatives	0.8	1.5	0
Not Designated as Hedging Instrument | Interest Rate Contract Gains | Other Current Assets
Derivatives, Fair Value [Line Items]
Asset derivatives	3.1	0	0
Not Designated as Hedging Instrument | Interest Rate Contract Gains | Other Assets
Derivatives, Fair Value [Line Items]
Asset derivatives	0	4.3	6.3
Not Designated as Hedging Instrument | Interest Rate Contract Gains | Accrued Liabilities
Derivatives, Fair Value [Line Items]
Liability derivatives	0	0	0
Not Designated as Hedging Instrument | Interest Rate Contract Gains | Other Liabilities
Derivatives, Fair Value [Line Items]
Liability derivatives	0	0	0
Not Designated as Hedging Instrument | Interest Rate Contract Loss | Other Current Assets
Derivatives, Fair Value [Line Items]
Asset derivatives	(0.8)	0	0
Not Designated as Hedging Instrument | Interest Rate Contract Loss | Other Assets
Derivatives, Fair Value [Line Items]
Asset derivatives	0	(0.8)	(1.6)
Not Designated as Hedging Instrument | Interest Rate Contract Loss | Accrued Liabilities
Derivatives, Fair Value [Line Items]
Liability derivatives	0	0	0
Not Designated as Hedging Instrument | Interest Rate Contract Loss | Other Liabilities
Derivatives, Fair Value [Line Items]
Liability derivatives	0	0	0
Not Designated as Hedging Instrument | Commodity Contracts Losses | Other Current Assets
Derivatives, Fair Value [Line Items]
Asset derivatives	0	0	(0.1)
Not Designated as Hedging Instrument | Commodity Contracts Losses | Accrued Liabilities
Derivatives, Fair Value [Line Items]
Liability derivatives	0.8	1.5	0
Not Designated as Hedging Instrument | Commodity Contracts Gains | Other Current Assets
Derivatives, Fair Value [Line Items]
Asset derivatives	0	0	0.3
Not Designated as Hedging Instrument | Commodity Contracts Gains | Accrued Liabilities
Derivatives, Fair Value [Line Items]
Liability derivatives	$ 0	$ 0	$ 0

DERIVATIVE FINANCIAL INSTRUME63

DERIVATIVE FINANCIAL INSTRUMENTS (Details 3) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Cash Flow Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Recognized in other comprehensive loss (effective portion)	$ (2.2)	$ 3.7	$ (4.6)	$ (2)
Cost of Sales | Cash Flow Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Reclassified from accumulated other comprehensive loss into income (effective portion)	(1.8)	(0.9)	(3.7)	(1.5)
Interest Rate Contract Gains | Interest Expense | Fair Value Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss)	0.7	0.7	1.4	1.4
Commodity Contracts Gains | Cost of Sales | Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss)	$ 0.1	$ 0	$ (1.6)	$ 0.6

FAIR VALUE MEASUREMENTS (Detail

FAIR VALUE MEASUREMENTS (Details Textuals) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014	Feb. 28, 2011
Fair Value Disclosures [Abstract]
Fair Value, Assets, Level 1 to Level 2 Transfers, Amount	$ 0
Fair Value, Assets, Level 2 to Level 1 Transfers, Amount	0
Fair Value, Liabilities, Level 1 to Level 2 Transfers, Amount	0
Fair Value, Liabilities, Level 2 to Level 1 Transfers, Amount	0
Business Acquisition, Percentage of Voting Interests Acquired				50.00%
Total earn out payment - SunBelt		$ 26.7
Financing portion of Earn out payment - SunBelt	0	14.8
Assets, Fair Value Disclosure, Nonrecurring	$ 0	$ 0	$ 0

FAIR VALUE MEASUREMENTS (Deta65

FAIR VALUE MEASUREMENTS (Details 1) - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014
Interest Rate Swap
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset	$ 2.3	$ 3.5	$ 4.7
Derivative Liability	3.1	4.5	5.9
Interest Rate Swap | Fair Value, Inputs, Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset	0	0	0
Derivative Liability	0	0	0
Interest Rate Swap | Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset	2.3	3.5	4.7
Derivative Liability	3.1	4.5	5.9
Interest Rate Swap | Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset	0	0	0
Derivative Liability	0	0	0
Commodity Contract
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset			0.9
Derivative Liability	8.8	8.6
Commodity Contract | Fair Value, Inputs, Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset			0
Derivative Liability	0	0
Commodity Contract | Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset			0.9
Derivative Liability	8.8	8.6
Commodity Contract | Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset			$ 0
Derivative Liability	$ 0	$ 0

FAIR VALUE MEASUREMENTS (Deta66

FAIR VALUE MEASUREMENTS (Details 2) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014	Dec. 31, 2013
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Settlements	$ 0	$ (26.7)
Balance at end of period	$ 0	$ 0	$ 0	$ 26.7

FAIR VALUE MEASUREMENTS (Deta67

FAIR VALUE MEASUREMENTS (Details 3) - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Long-term Debt, Fair Value	$ 686.3	$ 684.9	$ 722.7
Notes Payable	672.1	675.1	689.2
Fair Value, Inputs, Level 1
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Long-term Debt, Fair Value	0	0	0
Fair Value, Inputs, Level 2
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Long-term Debt, Fair Value	533.3	531.9	569.7
Fair Value, Inputs, Level 3
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Long-term Debt, Fair Value	$ 153	$ 153	$ 153