v2.4.1.9

COMMITMENTS AND CONTINGENCIES (Details 2) (USD $) In Millions, unless otherwise specified	12 Months Ended			1 Months Ended
	Dec. 31, 2014 item	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2014
Letters of Credit
Outstanding letters of credit	$ 82.3us-gaap_LettersOfCreditOutstandingAmount	$ 79.8us-gaap_LettersOfCreditOutstandingAmount		$ 82.3us-gaap_LettersOfCreditOutstandingAmount
Purchase Commitments
Amount of prepaid long-term purchase commitments capitalized		9.1us-gaap_PrepaidExpenseNoncurrent
Aggregate amount of payments made under long-term raw material purchase agreements	80.1axll_PurchasesUnderLongTermPurchaseCommitment	96.1axll_PurchasesUnderLongTermPurchaseCommitment	110.9axll_PurchasesUnderLongTermPurchaseCommitment
Amount of raw material purchases	385.4axll_RawMaterialPurchasedUnderLongTermPurchaseCommitment
Account payable for raw material purchases	16.5axll_AccountPayableForPurchasesUnderLongTermPurchaseCommitment			16.5axll_AccountPayableForPurchasesUnderLongTermPurchaseCommitment
Deferred Acquisition Payments Abstract
Deferred acquisition payments	10.0us-gaap_PaymentsForPreviousAcquisition
Environmental Regulation
Accrual of remediation costs	54us-gaap_AccrualForEnvironmentalLossContingencies	64us-gaap_AccrualForEnvironmentalLossContingencies		54us-gaap_AccrualForEnvironmentalLossContingencies
Number of plant site locations	2us-gaap_NumberOfStores			2us-gaap_NumberOfStores
Number of full-time employees	6,000dei_EntityNumberOfEmployees			6,000dei_EntityNumberOfEmployees
Number of employees employed under collective bargaining agreements	1,600axll_NumberOfEmployeesEmployedUnderCollectiveBargainingAgreements
Percentage of employees employed under collective bargaining agreements	27.00%axll_PercentageOfEmployeesEmployedUnderCollectiveBargainingAgreements
Current reserves for environmental contingencies	12us-gaap_AccruedEnvironmentalLossContingenciesCurrent	12us-gaap_AccruedEnvironmentalLossContingenciesCurrent		12us-gaap_AccruedEnvironmentalLossContingenciesCurrent
Involuntary conversion
Receivable from insurers	6.5us-gaap_InsuranceSettlementsReceivableCurrent			6.5us-gaap_InsuranceSettlementsReceivableCurrent
Merged Business
Deferred Acquisition Payments Abstract
Total deferred purchase price acquisition costs	50.0axll_BusinessCombinationTotalDeferredPurchasePriceAcquisitionCosts / us-gaap_BusinessAcquisitionAxis = axll_MergedBusinessMember			50.0axll_BusinessCombinationTotalDeferredPurchasePriceAcquisitionCosts / us-gaap_BusinessAcquisitionAxis = axll_MergedBusinessMember
Deferred acquisition payments	10.0us-gaap_PaymentsForPreviousAcquisition / us-gaap_BusinessAcquisitionAxis = axll_MergedBusinessMember
Future payments in 2015	10.0axll_BusinessCombinationDeferredPurchasePriceAcquisitionCostsDueCurrent / us-gaap_BusinessAcquisitionAxis = axll_MergedBusinessMember			10.0axll_BusinessCombinationDeferredPurchasePriceAcquisitionCostsDueCurrent / us-gaap_BusinessAcquisitionAxis = axll_MergedBusinessMember
Future payments in 2016	15.0axll_BusinessCombinationDeferredPurchasePriceAcquisitionCostsDueInTwoYears / us-gaap_BusinessAcquisitionAxis = axll_MergedBusinessMember			15.0axll_BusinessCombinationDeferredPurchasePriceAcquisitionCostsDueInTwoYears / us-gaap_BusinessAcquisitionAxis = axll_MergedBusinessMember
Future payments in 2017	15.0axll_BusinessCombinationDeferredPurchasePriceAcquisitionCostsDueInThreeYears / us-gaap_BusinessAcquisitionAxis = axll_MergedBusinessMember			15.0axll_BusinessCombinationDeferredPurchasePriceAcquisitionCostsDueInThreeYears / us-gaap_BusinessAcquisitionAxis = axll_MergedBusinessMember
RS Cogen
Purchase Commitments
Ownership interest (as a percent)	50.00%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = axll_RSCogenLLCMember			50.00%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = axll_RSCogenLLCMember
Future commitment per year to purchase electricity and steam from the joint venture	23.5axll_LongTermPurchaseCommitmentAmountPerYear / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = axll_RSCogenLLCMember
Aggregate future commitment to purchase electricity and steam from the joint venture	186.5us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = axll_RSCogenLLCMember			186.5us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = axll_RSCogenLLCMember
Purchases under future commitment	25.0axll_LongTermPurchaseCommitmentPurchases / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = axll_RSCogenLLCMember	22.9axll_LongTermPurchaseCommitmentPurchases / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = axll_RSCogenLLCMember
Minimum
Letters of Credit
Terms of letters of credit	1 month
Environmental Regulation
Potential additional loss contingencies	52us-gaap_AccruedEnvironmentalLossContingenciesNoncurrent / us-gaap_RangeAxis = us-gaap_MinimumMember			52us-gaap_AccruedEnvironmentalLossContingenciesNoncurrent / us-gaap_RangeAxis = us-gaap_MinimumMember
Maximum
Letters of Credit
Terms of letters of credit	1 year
Environmental Regulation
Potential additional loss contingencies	89us-gaap_AccruedEnvironmentalLossContingenciesNoncurrent / us-gaap_RangeAxis = us-gaap_MaximumMember			89us-gaap_AccruedEnvironmentalLossContingenciesNoncurrent / us-gaap_RangeAxis = us-gaap_MaximumMember
Natrium, West Virginia facility
Environmental Regulation
Accrual of remediation costs	15us-gaap_AccrualForEnvironmentalLossContingencies / dei_EntityByLocationAxis = axll_NatriumWestVirginiaFacilityMember	14us-gaap_AccrualForEnvironmentalLossContingencies / dei_EntityByLocationAxis = axll_NatriumWestVirginiaFacilityMember		15us-gaap_AccrualForEnvironmentalLossContingencies / dei_EntityByLocationAxis = axll_NatriumWestVirginiaFacilityMember
Lake Charles, LA facility
Environmental Regulation
Accrual of remediation costs	18us-gaap_AccrualForEnvironmentalLossContingencies / dei_EntityByLocationAxis = axll_LakeCharlesLouisianaFacilityMember	25us-gaap_AccrualForEnvironmentalLossContingencies / dei_EntityByLocationAxis = axll_LakeCharlesLouisianaFacilityMember		18us-gaap_AccrualForEnvironmentalLossContingencies / dei_EntityByLocationAxis = axll_LakeCharlesLouisianaFacilityMember
Legal proceedings
Number of individuals that have filed lawsuits against the Company	2,615us-gaap_LossContingencyNumberOfPlaintiffs / dei_EntityByLocationAxis = axll_LakeCharlesLouisianaFacilityMember
Lake Charles, LA facility | Insurance claims
Involuntary conversion
Insurance proceeds	14.3axll_ProceedsFromInsuranceSettlement / dei_EntityByLocationAxis = axll_LakeCharlesLouisianaFacilityMember / us-gaap_LossContingenciesByNatureOfContingencyAxis = us-gaap_InsuranceClaimsMember
Insurance proceeds reflected in cash flows from operating activities	10.4us-gaap_ProceedsFromInsuranceSettlementOperatingActivities / dei_EntityByLocationAxis = axll_LakeCharlesLouisianaFacilityMember / us-gaap_LossContingenciesByNatureOfContingencyAxis = us-gaap_InsuranceClaimsMember
Insurance proceeds reflected in cash flows from investing activities	3.9us-gaap_ProceedsFromInsuranceSettlementInvestingActivities / dei_EntityByLocationAxis = axll_LakeCharlesLouisianaFacilityMember / us-gaap_LossContingenciesByNatureOfContingencyAxis = us-gaap_InsuranceClaimsMember
Insurance recoveries				20.8us-gaap_InsuranceRecoveries / dei_EntityByLocationAxis = axll_LakeCharlesLouisianaFacilityMember / us-gaap_LossContingenciesByNatureOfContingencyAxis = us-gaap_InsuranceClaimsMember
Lake Charles, LA facility | Insurance claims | Cost of sales
Involuntary conversion
Insurance recoveries	17.7us-gaap_InsuranceRecoveries / dei_EntityByLocationAxis = axll_LakeCharlesLouisianaFacilityMember / us-gaap_IncomeStatementLocationAxis = us-gaap_CostOfSalesMember / us-gaap_LossContingenciesByNatureOfContingencyAxis = us-gaap_InsuranceClaimsMember
Insurance recoveries related to business interruption	16.9axll_InsuranceRecoveriesBusinessInterruption / dei_EntityByLocationAxis = axll_LakeCharlesLouisianaFacilityMember / us-gaap_IncomeStatementLocationAxis = us-gaap_CostOfSalesMember / us-gaap_LossContingenciesByNatureOfContingencyAxis = us-gaap_InsuranceClaimsMember
Lake Charles, South facility
Environmental Regulation
Accrual of remediation costs	$ 15us-gaap_AccrualForEnvironmentalLossContingencies / dei_EntityByLocationAxis = axll_LakeCharlesSouthFacilityMember	$ 15us-gaap_AccrualForEnvironmentalLossContingencies / dei_EntityByLocationAxis = axll_LakeCharlesSouthFacilityMember		$ 15us-gaap_AccrualForEnvironmentalLossContingencies / dei_EntityByLocationAxis = axll_LakeCharlesSouthFacilityMember

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