v2.4.1.9
LONG-TERM DEBT AND LEASE FINANCING OBLIGATION (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended 0 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Feb. 02, 2013
Feb. 27, 2015
Nov. 30, 2014
Debt Instrument            
Total debt $ 1,330.6us-gaap_LongTermDebt $ 1,332.8us-gaap_LongTermDebt        
Less current portion of long-term debt (2.8)us-gaap_LongTermDebtCurrent (2.8)us-gaap_LongTermDebtCurrent        
Long-term debt, net 1,327.8us-gaap_LongTermDebtNoncurrent 1,330.0us-gaap_LongTermDebtNoncurrent        
Loss on redemption and other debt costs   (78.5)us-gaap_GainsLossesOnExtinguishmentOfDebt (2.7)us-gaap_GainsLossesOnExtinguishmentOfDebt      
Debt issuance costs   2.4us-gaap_PaymentsOfFinancingCosts        
Outstanding letters of credit 82.3us-gaap_LettersOfCreditOutstandingAmount 79.8us-gaap_LettersOfCreditOutstandingAmount        
Lease financing obligation 94.2axll_LeaseFinancingObligation 104.7axll_LeaseFinancingObligation        
Lease financing obligation one-time payment 2.3axll_PaymentOfLeaseFinancingObligation          
Cash payments for interest 66.4us-gaap_InterestPaid 76.3us-gaap_InterestPaid 55.8us-gaap_InterestPaid      
Future minimum lease payments            
2015 5.5us-gaap_MinimumLeasePaymentsSaleLeasebackTransactionsWithinOneYear          
2016 5.5us-gaap_MinimumLeasePaymentsSaleLeasebackTransactionsWithinTwoYears          
2017 1.4us-gaap_MinimumLeasePaymentsSaleLeasebackTransactionsWithinThreeYears          
4.625 Notes            
Debt Instrument            
Stated Interest Rate (as a percent) 4.625%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= axll_SeniorNotes4.625PercentDue2021Member
         
Total debt 688.0us-gaap_LongTermDebt
/ us-gaap_LongtermDebtTypeAxis
= axll_SeniorNotes4.625PercentDue2021Member
688.0us-gaap_LongTermDebt
/ us-gaap_LongtermDebtTypeAxis
= axll_SeniorNotes4.625PercentDue2021Member
       
4.625 Notes | Spinco            
Debt Instrument            
Stated Interest Rate (as a percent) 4.625%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ dei_LegalEntityAxis
= axll_EagleSpincoIncMember
/ us-gaap_LongtermDebtTypeAxis
= axll_SeniorNotes4.625PercentDue2021Member
         
4.875 Notes            
Debt Instrument            
Stated Interest Rate (as a percent) 4.875%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= axll_SeniorUnsecuredNotes4.875PercentDue2023Member
    4.875%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= axll_SeniorUnsecuredNotes4.875PercentDue2023Member
   
Total debt 450.0us-gaap_LongTermDebt
/ us-gaap_LongtermDebtTypeAxis
= axll_SeniorUnsecuredNotes4.875PercentDue2023Member
450.0us-gaap_LongTermDebt
/ us-gaap_LongtermDebtTypeAxis
= axll_SeniorUnsecuredNotes4.875PercentDue2023Member
  450.0us-gaap_LongTermDebt
/ us-gaap_LongtermDebtTypeAxis
= axll_SeniorUnsecuredNotes4.875PercentDue2023Member
   
Term Loan agreement            
Debt Instrument            
Total debt 192.6us-gaap_LongTermDebt
/ us-gaap_LongtermDebtTypeAxis
= axll_TermLoanDue2017Member
194.8us-gaap_LongTermDebt
/ us-gaap_LongtermDebtTypeAxis
= axll_TermLoanDue2017Member
       
Debt issuance costs 1.8us-gaap_PaymentsOfFinancingCosts
/ us-gaap_LongtermDebtTypeAxis
= axll_TermLoanDue2017Member
         
Term Loan agreement | Spinco            
Debt Instrument            
Stated Interest Rate (as a percent) 3.50%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ dei_LegalEntityAxis
= axll_EagleSpincoIncMember
/ us-gaap_LongtermDebtTypeAxis
= axll_TermLoanDue2017Member
         
Principal amount   279.0us-gaap_DebtInstrumentFaceAmount
/ dei_LegalEntityAxis
= axll_EagleSpincoIncMember
/ us-gaap_LongtermDebtTypeAxis
= axll_TermLoanDue2017Member
       
Aggregate tender price paid for repurchase of notes 2.8us-gaap_RepaymentsOfDebt
/ dei_LegalEntityAxis
= axll_EagleSpincoIncMember
/ us-gaap_LongtermDebtTypeAxis
= axll_TermLoanDue2017Member
81.8us-gaap_RepaymentsOfDebt
/ dei_LegalEntityAxis
= axll_EagleSpincoIncMember
/ us-gaap_LongtermDebtTypeAxis
= axll_TermLoanDue2017Member
       
Deferred financing fees expensed   1.4us-gaap_WriteOffOfDeferredDebtIssuanceCost
/ dei_LegalEntityAxis
= axll_EagleSpincoIncMember
/ us-gaap_LongtermDebtTypeAxis
= axll_TermLoanDue2017Member
       
Effective interest rate (as a percent) 3.90%us-gaap_DebtInstrumentInterestRateEffectivePercentage
/ dei_LegalEntityAxis
= axll_EagleSpincoIncMember
/ us-gaap_LongtermDebtTypeAxis
= axll_TermLoanDue2017Member
         
Term Loan agreement | Spinco | Base Rate            
Debt Instrument            
Variable interest rate basis   Base Rate        
Variable interest rate margin (as a percent)   1.50%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ dei_LegalEntityAxis
= axll_EagleSpincoIncMember
/ us-gaap_LongtermDebtTypeAxis
= axll_TermLoanDue2017Member
/ us-gaap_VariableRateAxis
= us-gaap_BaseRateMember
       
Variable interest rate basis floor (as a percent)   2.00%axll_DebtInstrumentVariableRateBasisFloor
/ dei_LegalEntityAxis
= axll_EagleSpincoIncMember
/ us-gaap_LongtermDebtTypeAxis
= axll_TermLoanDue2017Member
/ us-gaap_VariableRateAxis
= us-gaap_BaseRateMember
       
Term Loan agreement | Spinco | Reserve adjusted Eurodollar Rate            
Debt Instrument            
Variable interest rate basis   Eurodollar Rate        
Variable interest rate margin (as a percent)   2.50%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ dei_LegalEntityAxis
= axll_EagleSpincoIncMember
/ us-gaap_LongtermDebtTypeAxis
= axll_TermLoanDue2017Member
/ us-gaap_VariableRateAxis
= axll_DebtInstrumentVariableRateBaseReserveAdjustedEurodollarRateMember
       
Variable interest rate basis floor (as a percent)   1.00%axll_DebtInstrumentVariableRateBasisFloor
/ dei_LegalEntityAxis
= axll_EagleSpincoIncMember
/ us-gaap_LongtermDebtTypeAxis
= axll_TermLoanDue2017Member
/ us-gaap_VariableRateAxis
= axll_DebtInstrumentVariableRateBaseReserveAdjustedEurodollarRateMember
       
ABL Revolver            
Debt Instrument            
Total debt 0us-gaap_LongTermDebt
/ us-gaap_LongtermDebtTypeAxis
= axll_ABLRevolverMember
         
Maximum borrowing capacity 600.0us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_LongtermDebtTypeAxis
= axll_ABLRevolverMember
        500.0us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_LongtermDebtTypeAxis
= axll_ABLRevolverMember
Availability under the credit facility 429.8us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity
/ us-gaap_LongtermDebtTypeAxis
= axll_ABLRevolverMember
         
Outstanding letters of credit 82.3us-gaap_LettersOfCreditOutstandingAmount
/ us-gaap_LongtermDebtTypeAxis
= axll_ABLRevolverMember
         
Maximum cash dividends if conditions are met 150axll_DebtInstrumentCovenantComplianceMaximumCashDividendPaymentsIfBothBorrowingAvailabilityAndFixedChargeCoverageRatioExceedsThresholds
/ us-gaap_LongtermDebtTypeAxis
= axll_ABLRevolverMember
         
Availability under the credit facility that, if exceeded, limits the cash dividend payments the entity is allowed to make 75axll_DebtInstrumentCovenantComplianceCashDividendPaymentsBorrowingAvailabilityThreshold
/ us-gaap_LongtermDebtTypeAxis
= axll_ABLRevolverMember
         
Consecutive period of borrowing availability under the credit facility used to determine cash dividend payments allowed 30 days          
Fixed charge coverage ratio that, if exceeded, limits the cash dividend payments the entity is allowed to make 1.00%axll_DebtInstrumentCovenantComplianceCashDividendPaymentsFixedChargeCoverageRatio
/ us-gaap_LongtermDebtTypeAxis
= axll_ABLRevolverMember
         
Availability under the credit facility that, if exceeded, allows the entity to make additional cash dividend payments 100axll_DebtInstrumentCovenantComplianceAdditionalCashDividendPaymentsBorrowingAvailabilityThreshold
/ us-gaap_LongtermDebtTypeAxis
= axll_ABLRevolverMember
         
Fixed charge coverage ratio, if exceeded, allows the entity to make additional cash dividend payments 1.10%axll_DebtInstrumentCovenantComplianceAdditionalCashDividendPaymentsFixedChargeCoverageRatio
/ us-gaap_LongtermDebtTypeAxis
= axll_ABLRevolverMember
         
Variable interest rate basis certain index rates          
ABL Revolver | Three-month LIBOR            
Debt Instrument            
Variable interest rate basis three-month London Interbank Offered Rate ("LIBOR")          
Variable interest rate margin (as a percent) 1.50%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_LongtermDebtTypeAxis
= axll_ABLRevolverMember
/ us-gaap_VariableRateAxis
= axll_DebtInstrumentVariableRateThreeMonthLIBORMember
         
ABL Revolver | Certain index rates            
Debt Instrument            
Variable interest rate margin (as a percent) 0.50%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_LongtermDebtTypeAxis
= axll_ABLRevolverMember
/ us-gaap_VariableRateAxis
= axll_DebtInstrumentVariableRateBaseCertainIndexRatesMember
         
ABL Revolver | Canada | Three-month LIBOR            
Debt Instrument            
Variable interest rate basis three-month LIBOR          
ABL Revolver | Canada | Certain index rates            
Debt Instrument            
Variable interest rate basis certain index rates          
ABL Revolver | Minimum | Three-month LIBOR            
Debt Instrument            
Variable interest rate margin (as a percent) 1.50%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_LongtermDebtTypeAxis
= axll_ABLRevolverMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
/ us-gaap_VariableRateAxis
= axll_DebtInstrumentVariableRateThreeMonthLIBORMember
         
ABL Revolver | Minimum | Certain index rates            
Debt Instrument            
Variable interest rate margin (as a percent) 0.50%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_LongtermDebtTypeAxis
= axll_ABLRevolverMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
/ us-gaap_VariableRateAxis
= axll_DebtInstrumentVariableRateBaseCertainIndexRatesMember
         
ABL Revolver | Maximum | Three-month LIBOR            
Debt Instrument            
Variable interest rate margin (as a percent) 2.00%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_LongtermDebtTypeAxis
= axll_ABLRevolverMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
/ us-gaap_VariableRateAxis
= axll_DebtInstrumentVariableRateThreeMonthLIBORMember
         
ABL Revolver | Maximum | Certain index rates            
Debt Instrument            
Variable interest rate margin (as a percent) 1.00%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_LongtermDebtTypeAxis
= axll_ABLRevolverMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
/ us-gaap_VariableRateAxis
= axll_DebtInstrumentVariableRateBaseCertainIndexRatesMember
         
9.0 percent notes            
Debt Instrument            
Stated Interest Rate (as a percent)       9.00%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= axll_SeniorSecuredNotes9.0PercentDue2017Member
   
Loss on redemption and other debt costs       2.2us-gaap_GainsLossesOnExtinguishmentOfDebt
/ us-gaap_LongtermDebtTypeAxis
= axll_SeniorSecuredNotes9.0PercentDue2017Member
   
Aggregate tender price paid for repurchase of notes       502.3us-gaap_RepaymentsOfDebt
/ us-gaap_LongtermDebtTypeAxis
= axll_SeniorSecuredNotes9.0PercentDue2017Member
   
Make whole payment included in redemption price       55.4axll_DebtInstrumentMakeWholePaymentIncludedInRedemptionPrice
/ us-gaap_LongtermDebtTypeAxis
= axll_SeniorSecuredNotes9.0PercentDue2017Member
   
Deferred financing fees expensed       8.5us-gaap_WriteOffOfDeferredDebtIssuanceCost
/ us-gaap_LongtermDebtTypeAxis
= axll_SeniorSecuredNotes9.0PercentDue2017Member
   
New Term Loan Facility | Axiall Holdco | Subsequent Event            
Debt Instrument            
Principal amount         250.0us-gaap_DebtInstrumentFaceAmount
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= axll_NewTermLoanFacilityMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
 
New Term Loan Facility | Axiall Holdco | Subsequent Event | Base Rate            
Debt Instrument            
Variable interest rate basis         Base Rate  
Variable interest rate margin (as a percent)         1.50%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= axll_NewTermLoanFacilityMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
/ us-gaap_VariableRateAxis
= us-gaap_BaseRateMember
 
Variable interest rate basis floor (as a percent)         2.00%axll_DebtInstrumentVariableRateBasisFloor
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= axll_NewTermLoanFacilityMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
/ us-gaap_VariableRateAxis
= us-gaap_BaseRateMember
 
New Term Loan Facility | Axiall Holdco | Subsequent Event | LIBOR            
Debt Instrument            
Variable interest rate basis         LIBOR  
Variable interest rate margin (as a percent)         3.25%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= axll_NewTermLoanFacilityMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
/ us-gaap_VariableRateAxis
= us-gaap_LondonInterbankOfferedRateLIBORMember
 
Variable interest rate basis floor (as a percent)         0.75%axll_DebtInstrumentVariableRateBasisFloor
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LongtermDebtTypeAxis
= axll_NewTermLoanFacilityMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
/ us-gaap_VariableRateAxis
= us-gaap_LondonInterbankOfferedRateLIBORMember
 
Lease financing obligation            
Debt Instrument            
Outstanding letters of credit 1.6us-gaap_LettersOfCreditOutstandingAmount
/ us-gaap_LongtermDebtTypeAxis
= axll_LeaseFinancingObligationMember
3.8us-gaap_LettersOfCreditOutstandingAmount
/ us-gaap_LongtermDebtTypeAxis
= axll_LeaseFinancingObligationMember
       
Lease financing obligation 94.2axll_LeaseFinancingObligation
/ us-gaap_LongtermDebtTypeAxis
= axll_LeaseFinancingObligationMember
104.7axll_LeaseFinancingObligation
/ us-gaap_LongtermDebtTypeAxis
= axll_LeaseFinancingObligationMember
       
Lease financing obligation one-time payment 2.3axll_PaymentOfLeaseFinancingObligation
/ us-gaap_LongtermDebtTypeAxis
= axll_LeaseFinancingObligationMember
         
Lease financing obligation term 10 years          
Bridge loan            
Debt Instrument            
Debt issuance costs   11.0us-gaap_PaymentsOfFinancingCosts
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_BridgeLoanMember
       
Principal amount   $ 688.0us-gaap_DebtInstrumentFaceAmount
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_BridgeLoanMember