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ACCUMULATED OTHER COMPREHENSIVE INCOME AND OTHER COMPREHENSIVE INCOME (LOSS) (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2015 | Jun. 30, 2014 | Jun. 30, 2015 | Jun. 30, 2014
Accumulated Other Comprehensive Loss |  |  |  |
Balance at the beginning of the period |  |  | $ (73.7) |
Other comprehensive income (loss) before reclassifications |  |  | (22.8) |
Amounts reclassified from accumulated other comprehensive loss, net of tax |  |  | 3.4 |
Other comprehensive income (loss) attributable to Axiall, net of tax | $ 8.4 | $ 9.9 | (19.4) | $ (3.4)
Balance at the end of the period | (93.1) |  | (93.1) |
Change in foreign currency translation adjustment |  |  |  |
Accumulated Other Comprehensive Loss |  |  |  |
Balance at the beginning of the period |  |  | (20.4) |
Other comprehensive income (loss) before reclassifications |  |  | (24.6) |
Other comprehensive income (loss) attributable to Axiall, net of tax |  |  | (24.6) |
Balance at the end of the period | (45.0) |  | (45.0) |
Change in derivative cash flow hedges |  |  |  |
Accumulated Other Comprehensive Loss |  |  |  |
Balance at the beginning of the period |  |  | (8.3) |
Other comprehensive income (loss) before reclassifications |  |  | 1.5 |
Amounts reclassified from accumulated other comprehensive loss, net of tax |  |  | 5.4 |
Other comprehensive income (loss) attributable to Axiall, net of tax |  |  | 6.9 |
Balance at the end of the period | (1.4) |  | (1.4) |
Change in pension and OPEB liability adjustments |  |  |  |
Accumulated Other Comprehensive Loss |  |  |  |
Balance at the beginning of the period |  |  | (45.0) |
Other comprehensive income (loss) before reclassifications |  |  | 0.3 |
Amounts reclassified from accumulated other comprehensive loss, net of tax |  |  | (2.0) |
Other comprehensive income (loss) attributable to Axiall, net of tax |  |  | (1.7) |
Balance at the end of the period | $ (46.7) |  | $ (46.7) |

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