View:
Download DOC
Download PDF
Download XLS
Download XBRL
Document
1.61.61.61.61.61.61.61.60.6250.6250.6250.6250.6250.6250.6250.625P1YP1YP1YP1Yfalse--12-31FY20190000006201000000451541000000410000000.10.10.10.10.10.10.10.10.10.10.10.0110.011175000000010001750000000100010001000460610870100042820250610000.07310.08390.02990.030.050.07310.080.08390.02990.050.030.0550.03450.04050.03450.04050.300.050.150.100.450.10.050.550.800.250.400.100.0500.0200.15000.200.450.100.150.020.300.050.150.100.450.10.200.550.800.250.400.10.0500.0200.15000.200.450.100.150.02P25YP25Y0.03540.03720.03800.03740.03540.03720.03800.03741000000000010000000000P30YP10YP30YP10YP20YP5YP5YP3YP30YP10YP30YP10YP20YP5YP5YP3Y24000000002400000000216686117091401682202339531271660615734090566 0000006201 2019-01-01 2019-12-31 0000006201 srt:SubsidiariesMember 2019-01-01 2019-12-31 0000006201 2020-02-14 0000006201 2019-06-30 0000006201 srt:SubsidiariesMember 2020-02-14 0000006201 us-gaap:ProductAndServiceOtherMember 2018-01-01 2018-12-31 0000006201 2018-01-01 2018-12-31 0000006201 2017-01-01 2017-12-31 0000006201 us-gaap:ProductAndServiceOtherMember 2019-01-01 2019-12-31 0000006201 us-gaap:PassengerMember 2018-01-01 2018-12-31 0000006201 us-gaap:PassengerMember 2017-01-01 2017-12-31 0000006201 us-gaap:CargoAndFreightMember 2018-01-01 2018-12-31 0000006201 us-gaap:PassengerMember 2019-01-01 2019-12-31 0000006201 us-gaap:CargoAndFreightMember 2017-01-01 2017-12-31 0000006201 us-gaap:CargoAndFreightMember 2019-01-01 2019-12-31 0000006201 us-gaap:ProductAndServiceOtherMember 2017-01-01 2017-12-31 0000006201 2018-12-31 0000006201 2019-12-31 0000006201 aal:LoyaltyProgramMember 2018-12-31 0000006201 aal:AirTrafficMember 2018-12-31 0000006201 aal:LoyaltyProgramMember 2019-12-31 0000006201 aal:AirTrafficMember 2019-12-31 0000006201 2017-12-31 0000006201 aal:LoyaltyProgramMember 2017-01-01 2017-12-31 0000006201 aal:AirTrafficMember 2017-01-01 2017-12-31 0000006201 aal:LoyaltyProgramMember 2018-01-01 2018-12-31 0000006201 2016-12-31 0000006201 aal:AirTrafficMember 2018-01-01 2018-12-31 0000006201 aal:LoyaltyProgramMember 2019-01-01 2019-12-31 0000006201 aal:AirTrafficMember 2019-01-01 2019-12-31 0000006201 us-gaap:AccountingStandardsUpdate201601Member us-gaap:RetainedEarningsMember 2018-01-01 0000006201 us-gaap:AdditionalPaidInCapitalMember 2017-01-01 2017-12-31 0000006201 us-gaap:AdditionalPaidInCapitalMember 2018-01-01 2018-12-31 0000006201 us-gaap:AdditionalPaidInCapitalMember 2019-01-01 2019-12-31 0000006201 us-gaap:RetainedEarningsMember 2017-12-31 0000006201 us-gaap:AccumulatedOtherComprehensiveIncomeMember 2019-01-01 2019-12-31 0000006201 us-gaap:CommonStockMember 2019-01-01 2019-12-31 0000006201 us-gaap:RetainedEarningsMember 2017-01-01 2017-12-31 0000006201 us-gaap:RetainedEarningsMember 2019-01-01 2019-12-31 0000006201 us-gaap:AccumulatedOtherComprehensiveIncomeMember 2018-12-31 0000006201 us-gaap:RetainedEarningsMember 2016-12-31 0000006201 us-gaap:AccountingStandardsUpdate201601Member 2018-01-01 0000006201 us-gaap:CommonStockMember 2017-01-01 2017-12-31 0000006201 us-gaap:CommonStockMember 2019-12-31 0000006201 us-gaap:AccountingStandardsUpdate201602Member us-gaap:RetainedEarningsMember 2018-01-01 0000006201 us-gaap:AccumulatedOtherComprehensiveIncomeMember 2018-01-01 2018-12-31 0000006201 us-gaap:RetainedEarningsMember 2019-12-31 0000006201 us-gaap:AccumulatedOtherComprehensiveIncomeMember 2017-01-01 2017-12-31 0000006201 us-gaap:AccumulatedOtherComprehensiveIncomeMember 2017-12-31 0000006201 us-gaap:CommonStockMember 2017-12-31 0000006201 us-gaap:AccumulatedOtherComprehensiveIncomeMember 2019-12-31 0000006201 us-gaap:AccountingStandardsUpdate201602Member 2018-01-01 0000006201 us-gaap:AdditionalPaidInCapitalMember 2018-12-31 0000006201 us-gaap:AdditionalPaidInCapitalMember 2016-12-31 0000006201 us-gaap:RetainedEarningsMember 2018-01-01 2018-12-31 0000006201 us-gaap:AccumulatedOtherComprehensiveIncomeMember 2016-12-31 0000006201 us-gaap:CommonStockMember 2018-12-31 0000006201 us-gaap:RetainedEarningsMember 2018-12-31 0000006201 us-gaap:AdditionalPaidInCapitalMember 2019-12-31 0000006201 us-gaap:CommonStockMember 2016-12-31 0000006201 us-gaap:AdditionalPaidInCapitalMember 2017-12-31 0000006201 us-gaap:RegionalCarrierMember 2017-01-01 2017-12-31 0000006201 us-gaap:RegionalCarrierMember 2018-01-01 2018-12-31 0000006201 us-gaap:RegionalCarrierMember 2019-01-01 2019-12-31 0000006201 us-gaap:MarketingRelatedIntangibleAssetsMember 2019-01-01 2019-12-31 0000006201 aal:RepublicAirlineIncMember us-gaap:RegionalCarrierMember 2018-01-01 2018-12-31 0000006201 aal:RepublicAirlineIncMember us-gaap:RegionalCarrierMember 2017-01-01 2017-12-31 0000006201 aal:LoyaltyProgramMarketingServicesMember 2017-01-01 2017-12-31 0000006201 srt:MaximumMember aal:AircraftEnginesAndRelatedRotablePartsMember 2019-12-31 0000006201 us-gaap:CustomerRelationshipsMember 2019-01-01 2019-12-31 0000006201 srt:MinimumMember aal:AircraftEnginesAndRelatedRotablePartsMember 2019-12-31 0000006201 aal:RepublicAirlineIncMember us-gaap:RegionalCarrierMember 2019-01-01 2019-12-31 0000006201 aal:AirportTakeOffAndLandingSlotsMember 2019-01-01 2019-12-31 0000006201 aal:RepublicAirwaysHoldingsInc.Member 2019-12-31 0000006201 aal:LoyaltyProgramMarketingServicesMember 2019-01-01 2019-12-31 0000006201 2017-12-22 2017-12-22 0000006201 aal:OtherRevenueMember 2019-01-01 2019-12-31 0000006201 aal:LoyaltyProgramTravelRedemptionsMember 2017-01-01 2017-12-31 0000006201 aal:OtherRevenueMember 2017-01-01 2017-12-31 0000006201 aal:LoyaltyProgramTravelRedemptionsMember 2019-01-01 2019-12-31 0000006201 aal:LoyaltyProgramMarketingServicesMember 2018-01-01 2018-12-31 0000006201 aal:PassengerTravelMember 2019-01-01 2019-12-31 0000006201 aal:OtherRevenueMember 2018-01-01 2018-12-31 0000006201 aal:LoyaltyProgramTravelRedemptionsMember 2018-01-01 2018-12-31 0000006201 aal:PassengerTravelMember 2017-01-01 2017-12-31 0000006201 aal:PassengerTravelMember 2018-01-01 2018-12-31 0000006201 us-gaap:TradeNamesMember 2019-12-31 0000006201 us-gaap:MarketingRelatedIntangibleAssetsMember 2018-12-31 0000006201 aal:AirportTakeOffAndLandingSlotsMember 2019-12-31 0000006201 us-gaap:TradeNamesMember 2018-12-31 0000006201 us-gaap:CustomerRelationshipsMember 2019-12-31 0000006201 aal:AirportTakeOffAndLandingSlotsMember 2018-12-31 0000006201 aal:AirportGateLeaseholdRightsMember 2019-12-31 0000006201 us-gaap:MarketingRelatedIntangibleAssetsMember 2019-12-31 0000006201 aal:AirportGateLeaseholdRightsMember 2018-12-31 0000006201 us-gaap:CustomerRelationshipsMember 2018-12-31 0000006201 us-gaap:PassengerMember us-gaap:LatinAmericaDestinationMember 2018-01-01 2018-12-31 0000006201 us-gaap:PassengerMember us-gaap:DomesticDestinationMember 2019-01-01 2019-12-31 0000006201 us-gaap:PassengerMember us-gaap:PacificDestinationMember 2017-01-01 2017-12-31 0000006201 us-gaap:PassengerMember us-gaap:PacificDestinationMember 2019-01-01 2019-12-31 0000006201 us-gaap:PassengerMember us-gaap:LatinAmericaDestinationMember 2017-01-01 2017-12-31 0000006201 us-gaap:PassengerMember us-gaap:AtlanticDestinationMember 2019-01-01 2019-12-31 0000006201 us-gaap:PassengerMember us-gaap:AtlanticDestinationMember 2017-01-01 2017-12-31 0000006201 us-gaap:PassengerMember us-gaap:DomesticDestinationMember 2018-01-01 2018-12-31 0000006201 us-gaap:PassengerMember us-gaap:PacificDestinationMember 2018-01-01 2018-12-31 0000006201 us-gaap:PassengerMember us-gaap:AtlanticDestinationMember 2018-01-01 2018-12-31 0000006201 us-gaap:PassengerMember us-gaap:LatinAmericaDestinationMember 2019-01-01 2019-12-31 0000006201 us-gaap:PassengerMember us-gaap:DomesticDestinationMember 2017-01-01 2017-12-31 0000006201 aal:AirportGateLeaseholdRightsMember 2019-01-01 2019-12-31 0000006201 srt:MinimumMember us-gaap:FurnitureAndFixturesMember 2019-01-01 2019-12-31 0000006201 srt:MinimumMember aal:AircraftEnginesAndRelatedRotablePartsMember 2019-01-01 2019-12-31 0000006201 srt:MaximumMember us-gaap:BuildingAndBuildingImprovementsMember 2019-01-01 2019-12-31 0000006201 srt:MaximumMember us-gaap:FurnitureAndFixturesMember 2019-01-01 2019-12-31 0000006201 srt:MaximumMember aal:AircraftEnginesAndRelatedRotablePartsMember 2019-01-01 2019-12-31 0000006201 srt:MinimumMember us-gaap:BuildingAndBuildingImprovementsMember 2019-01-01 2019-12-31 0000006201 srt:MaximumMember aal:CapitalizedSoftwareMember 2019-01-01 2019-12-31 0000006201 srt:MinimumMember aal:CapitalizedSoftwareMember 2019-01-01 2019-12-31 0000006201 2014-07-01 2018-12-31 0000006201 aal:ShareRepurchaseProgramApril2018Member 2017-01-01 2017-12-31 0000006201 aal:ShareRepurchaseProgramApril2018Member 2018-04-30 0000006201 aal:ShareRepurchaseProgramApril2018Member 2018-01-01 2018-12-31 0000006201 aal:ShareRepurchaseProgramApril2018Member 2019-01-01 2019-12-31 0000006201 aal:ShareRepurchaseProgramApril2018Member 2019-12-31 0000006201 2019-10-01 2019-12-31 0000006201 aal:ShareRepurchaseProgramApril2018Member 2014-07-31 2019-12-31 0000006201 2019-01-01 2019-03-31 0000006201 2019-04-01 2019-06-30 0000006201 2017-04-01 2017-06-30 0000006201 2018-07-01 2018-09-30 0000006201 2018-04-01 2018-06-30 0000006201 2018-10-01 2018-12-31 0000006201 2017-10-01 2017-12-31 0000006201 2019-07-01 2019-09-30 0000006201 2017-01-01 2017-03-31 0000006201 2018-01-01 2018-03-31 0000006201 2017-07-01 2017-09-30 0000006201 srt:SubsidiariesMember aal:CreditFacilityDecember2016Member us-gaap:SecuredDebtMember 2019-01-01 2019-12-31 0000006201 srt:SubsidiariesMember aal:CreditFacilityApril2016Member us-gaap:SecuredDebtMember 2019-01-01 2019-12-31 0000006201 srt:SubsidiariesMember aal:CreditFacility2014Member us-gaap:SecuredDebtMember 2019-01-01 2019-12-31 0000006201 srt:SubsidiariesMember aal:CreditFacility2013Member us-gaap:SecuredDebtMember 2019-01-01 2019-12-31 0000006201 us-gaap:RevolvingCreditFacilityMember aal:CreditFacilityApril2016Member 2019-12-31 0000006201 us-gaap:RevolvingCreditFacilityMember aal:CreditFacility2013Member 2019-12-31 0000006201 us-gaap:RevolvingCreditFacilityMember 2019-12-31 0000006201 us-gaap:RevolvingCreditFacilityMember aal:ShortTermRevolvingCreditFacilityMember 2019-12-31 0000006201 us-gaap:RevolvingCreditFacilityMember aal:CreditFacility2014Member 2019-12-31 0000006201 srt:SubsidiariesMember aal:A20191EETCSeriesAAMember us-gaap:EnhancedEquipmentTrustCertificateMember 2019-12-31 0000006201 srt:SubsidiariesMember aal:A20191EETCSeriesAMember us-gaap:EnhancedEquipmentTrustCertificateMember 2019-12-31 0000006201 srt:SubsidiariesMember aal:A20191EETCSeriesBMember us-gaap:EnhancedEquipmentTrustCertificateMember 2019-12-31 0000006201 us-gaap:EnhancedEquipmentTrustCertificateMember us-gaap:SecuredDebtMember 2018-12-31 0000006201 aal:CreditFacility2013Member us-gaap:SecuredDebtMember 2019-12-31 0000006201 us-gaap:UnsecuredDebtMember 2019-12-31 0000006201 aal:CreditFacilityDecember2016Member us-gaap:SecuredDebtMember 2019-12-31 0000006201 aal:EquipmentLoansAndOtherNotesPayableMember us-gaap:SecuredDebtMember 2019-12-31 0000006201 aal:SeniorNotes4.625Duein2020Member us-gaap:UnsecuredDebtMember 2018-12-31 0000006201 aal:CreditFacility2014Member us-gaap:SecuredDebtMember 2018-12-31 0000006201 aal:SeniorNotes4.625Duein2020Member us-gaap:UnsecuredDebtMember 2019-12-31 0000006201 aal:CreditFacilityApril2016Member us-gaap:SecuredDebtMember 2019-12-31 0000006201 aal:EquipmentLoansAndOtherNotesPayableMember us-gaap:SecuredDebtMember 2018-12-31 0000006201 aal:SeniorNotes5.00Due2022Member us-gaap:UnsecuredDebtMember 2018-12-31 0000006201 us-gaap:SecuredDebtMember 2018-12-31 0000006201 aal:SpecialFacilityRevenueBondsMember us-gaap:SecuredDebtMember 2019-12-31 0000006201 aal:SeniorNotes5.00Due2022Member us-gaap:UnsecuredDebtMember 2019-12-31 0000006201 aal:SeniorNotes5.50Duein2019Member us-gaap:UnsecuredDebtMember 2019-12-31 0000006201 aal:CreditFacility2013Member us-gaap:SecuredDebtMember 2018-12-31 0000006201 us-gaap:EnhancedEquipmentTrustCertificateMember us-gaap:SecuredDebtMember 2019-12-31 0000006201 aal:SeniorNotes5.50Duein2019Member us-gaap:UnsecuredDebtMember 2018-12-31 0000006201 us-gaap:SecuredDebtMember 2019-12-31 0000006201 aal:CreditFacility2014Member us-gaap:SecuredDebtMember 2019-12-31 0000006201 us-gaap:UnsecuredDebtMember 2018-12-31 0000006201 us-gaap:SeniorNotesMember us-gaap:UnsecuredDebtMember 2019-01-01 2019-12-31 0000006201 us-gaap:EnhancedEquipmentTrustCertificateMember us-gaap:SecuredDebtMember 2019-01-01 2019-12-31 0000006201 us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2019-01-01 2019-12-31 0000006201 us-gaap:PensionPlansDefinedBenefitMember 2019-01-01 2019-12-31 0000006201 aal:SpecialFacilityRevenueBondsMember us-gaap:SecuredDebtMember 2018-12-31 0000006201 aal:CreditFacilityApril2016Member us-gaap:SecuredDebtMember 2018-12-31 0000006201 aal:CreditFacilityDecember2016Member us-gaap:SecuredDebtMember 2018-12-31 0000006201 srt:SubsidiariesMember aal:EquipmentLoansAndOtherNotesPayableMember us-gaap:SecuredDebtMember us-gaap:LondonInterbankOfferedRateLIBORMember 2019-12-31 0000006201 aal:SeniorNotes5.00Due2022Member us-gaap:UnsecuredDebtMember 2019-05-31 0000006201 srt:SubsidiariesMember aal:EquipmentLoansAndOtherNotesPayableMember us-gaap:SecuredDebtMember 2019-01-01 2019-12-31 0000006201 us-gaap:RevolvingCreditFacilityMember aal:CreditFacility2014Member us-gaap:SecuredDebtMember 2019-11-30 0000006201 us-gaap:RevolvingCreditFacilityMember aal:CreditFacility2013Member us-gaap:SecuredDebtMember 2019-11-30 0000006201 srt:SubsidiariesMember aal:EnhancedEquipmentTrustCertificates20191Member us-gaap:EnhancedEquipmentTrustCertificateMember 2019-06-30 0000006201 aal:CreditFacilitiesAndCertainEetcFinancingsMember us-gaap:SecuredDebtMember 2019-12-31 0000006201 srt:SubsidiariesMember aal:EnhancedEquipmentTrustCertificates20191Member us-gaap:EnhancedEquipmentTrustCertificateMember 2019-08-31 0000006201 aal:CreditFacility2013Member us-gaap:SecuredDebtMember 2019-01-01 2019-12-31 0000006201 us-gaap:RevolvingCreditFacilityMember aal:CreditFacilityApril2016Member us-gaap:SecuredDebtMember 2019-11-30 0000006201 us-gaap:RevolvingCreditFacilityMember aal:CreditFacilityApril2016Member us-gaap:SecuredDebtMember 2019-10-31 0000006201 us-gaap:RevolvingCreditFacilityMember aal:CreditFacility2014Member us-gaap:SecuredDebtMember 2019-10-31 0000006201 us-gaap:SecuredDebtMember 2019-01-01 2019-12-31 0000006201 us-gaap:LetterOfCreditMember aal:CreditFacility2013Member us-gaap:SecuredDebtMember 2019-12-31 0000006201 us-gaap:RevolvingCreditFacilityMember aal:CreditFacility2013Member us-gaap:SecuredDebtMember 2019-10-31 0000006201 srt:SubsidiariesMember us-gaap:EnhancedEquipmentTrustCertificateMember 2019-01-01 2019-12-31 0000006201 us-gaap:LetterOfCreditMember aal:CreditFacility2014Member us-gaap:SecuredDebtMember 2019-12-31 0000006201 us-gaap:SeniorNotesMember us-gaap:UnsecuredDebtMember 2019-05-01 2019-05-31 0000006201 srt:SubsidiariesMember aal:EnhancedEquipmentTrustCertificates20191Member us-gaap:EnhancedEquipmentTrustCertificateMember 2019-01-01 2019-12-31 0000006201 aal:TermLoanFacilityMember us-gaap:SecuredDebtMember 2019-01-01 2019-12-31 0000006201 aal:TermLoanFacilityMember aal:CreditFacilityApril2016Member us-gaap:SecuredDebtMember us-gaap:LondonInterbankOfferedRateLIBORMember 2019-01-01 2019-12-31 0000006201 aal:TermLoanFacilityMember aal:CreditFacilityDecember2016Member us-gaap:SecuredDebtMember us-gaap:LondonInterbankOfferedRateLIBORMember 2019-01-01 2019-12-31 0000006201 aal:TermLoanFacilityMember aal:CreditFacilityDecember2016Member us-gaap:SecuredDebtMember 2019-12-31 0000006201 us-gaap:RevolvingCreditFacilityMember aal:CreditFacility2013Member us-gaap:SecuredDebtMember 2019-12-31 0000006201 us-gaap:RevolvingCreditFacilityMember aal:CreditFacility2014Member us-gaap:SecuredDebtMember 2019-12-31 0000006201 aal:TermLoanFacilityMember aal:CreditFacilityApril2016Member us-gaap:SecuredDebtMember 2019-12-31 0000006201 us-gaap:RevolvingCreditFacilityMember aal:CreditFacility2013Member us-gaap:SecuredDebtMember us-gaap:LondonInterbankOfferedRateLIBORMember 2019-01-01 2019-12-31 0000006201 us-gaap:RevolvingCreditFacilityMember aal:CreditFacilityApril2016Member us-gaap:SecuredDebtMember 2019-12-31 0000006201 aal:TermLoanFacilityMember aal:CreditFacility2013Member us-gaap:SecuredDebtMember 2019-12-31 0000006201 aal:TermLoanFacilityMember aal:CreditFacility2014Member us-gaap:SecuredDebtMember us-gaap:LondonInterbankOfferedRateLIBORMember 2019-01-01 2019-12-31 0000006201 us-gaap:RevolvingCreditFacilityMember aal:CreditFacility2014Member us-gaap:SecuredDebtMember us-gaap:LondonInterbankOfferedRateLIBORMember 2019-01-01 2019-12-31 0000006201 aal:TermLoanFacilityMember aal:CreditFacility2013Member us-gaap:SecuredDebtMember us-gaap:LondonInterbankOfferedRateLIBORMember 2019-01-01 2019-12-31 0000006201 us-gaap:RevolvingCreditFacilityMember aal:CreditFacilityApril2016Member us-gaap:SecuredDebtMember us-gaap:LondonInterbankOfferedRateLIBORMember 2019-01-01 2019-12-31 0000006201 aal:TermLoanFacilityMember aal:CreditFacility2014Member us-gaap:SecuredDebtMember 2019-12-31 0000006201 aal:CreditFacilityApril2016Member us-gaap:SecuredDebtMember 2019-01-01 2019-12-31 0000006201 aal:CreditFacility2014Member us-gaap:SecuredDebtMember 2019-01-01 2019-12-31 0000006201 aal:CreditFacilityDecember2016Member us-gaap:SecuredDebtMember 2019-01-01 2019-12-31 0000006201 srt:MaximumMember aal:SpecialFacilityRevenueBondsMember us-gaap:SecuredDebtMember 2019-12-31 0000006201 srt:MaximumMember aal:EquipmentLoansAndOtherNotesPayableMember us-gaap:SecuredDebtMember 2019-12-31 0000006201 srt:MinimumMember aal:SpecialFacilityRevenueBondsMember us-gaap:SecuredDebtMember 2019-12-31 0000006201 srt:MinimumMember us-gaap:EnhancedEquipmentTrustCertificateMember us-gaap:SecuredDebtMember 2019-12-31 0000006201 srt:MinimumMember aal:EquipmentLoansAndOtherNotesPayableMember us-gaap:SecuredDebtMember 2019-12-31 0000006201 srt:MaximumMember us-gaap:EnhancedEquipmentTrustCertificateMember us-gaap:SecuredDebtMember 2019-12-31 0000006201 srt:MinimumMember 2019-12-31 2019-12-31 0000006201 aal:RepublicAirlineIncMember 2019-01-01 2019-12-31 0000006201 aal:RepublicAirlineIncMember 2018-01-01 2018-12-31 0000006201 srt:MaximumMember 2019-12-31 2019-12-31 0000006201 us-gaap:DomesticCountryMember 2019-12-31 0000006201 aal:AlternativeMinimumTaxCreditCarryforwardMember 2019-12-31 0000006201 us-gaap:StateAndLocalJurisdictionMember 2019-12-31 0000006201 aal:VariableRateDebtMember 2019-12-31 0000006201 us-gaap:FairValueMeasurementsRecurringMember us-gaap:CorporateDebtSecuritiesMember aal:MaturityDatesExceedingOneYearMember 2019-12-31 0000006201 aal:ChinaSouthernAirlinesCompanyLimitedMember 2019-12-31 0000006201 us-gaap:FairValueMeasurementsRecurringMember us-gaap:BankTimeDepositsMember aal:MaturityDatesExceedingOneYearMember 2019-12-31 0000006201 us-gaap:CarryingReportedAmountFairValueDisclosureMember 2018-12-31 0000006201 us-gaap:CarryingReportedAmountFairValueDisclosureMember 2019-12-31 0000006201 us-gaap:FairValueInputsLevel2Member us-gaap:EstimateOfFairValueFairValueDisclosureMember 2019-12-31 0000006201 us-gaap:FairValueInputsLevel2Member us-gaap:EstimateOfFairValueFairValueDisclosureMember 2018-12-31 0000006201 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:MoneyMarketFundsMember 2018-12-31 0000006201 us-gaap:FairValueMeasurementsRecurringMember us-gaap:RepurchaseAgreementsMember 2018-12-31 0000006201 us-gaap:FairValueMeasurementsRecurringMember 2018-12-31 0000006201 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember 2018-12-31 0000006201 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:RepurchaseAgreementsMember 2018-12-31 0000006201 us-gaap:FairValueMeasurementsRecurringMember us-gaap:CorporateDebtSecuritiesMember 2018-12-31 0000006201 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember 2018-12-31 0000006201 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:BankTimeDepositsMember 2018-12-31 0000006201 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:CorporateDebtSecuritiesMember 2018-12-31 0000006201 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:RepurchaseAgreementsMember 2018-12-31 0000006201 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:BankTimeDepositsMember 2018-12-31 0000006201 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember 2018-12-31 0000006201 us-gaap:FairValueMeasurementsRecurringMember us-gaap:MoneyMarketFundsMember 2018-12-31 0000006201 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:RepurchaseAgreementsMember 2018-12-31 0000006201 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:MoneyMarketFundsMember 2018-12-31 0000006201 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:MoneyMarketFundsMember 2018-12-31 0000006201 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:CorporateDebtSecuritiesMember 2018-12-31 0000006201 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:CorporateDebtSecuritiesMember 2018-12-31 0000006201 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:BankTimeDepositsMember 2018-12-31 0000006201 us-gaap:FairValueMeasurementsRecurringMember us-gaap:BankTimeDepositsMember 2018-12-31 0000006201 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:BankTimeDepositsMember 2019-12-31 0000006201 us-gaap:FairValueMeasurementsRecurringMember us-gaap:RepurchaseAgreementsMember 2019-12-31 0000006201 us-gaap:FairValueMeasurementsRecurringMember us-gaap:CorporateDebtSecuritiesMember 2019-12-31 0000006201 us-gaap:FairValueMeasurementsRecurringMember 2019-12-31 0000006201 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:BankTimeDepositsMember 2019-12-31 0000006201 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember 2019-12-31 0000006201 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember 2019-12-31 0000006201 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:RepurchaseAgreementsMember 2019-12-31 0000006201 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:BankTimeDepositsMember 2019-12-31 0000006201 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:RepurchaseAgreementsMember 2019-12-31 0000006201 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:CorporateDebtSecuritiesMember 2019-12-31 0000006201 us-gaap:FairValueMeasurementsRecurringMember us-gaap:BankTimeDepositsMember 2019-12-31 0000006201 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:RepurchaseAgreementsMember 2019-12-31 0000006201 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:MoneyMarketFundsMember 2019-12-31 0000006201 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember 2019-12-31 0000006201 us-gaap:FairValueMeasurementsRecurringMember us-gaap:MoneyMarketFundsMember 2019-12-31 0000006201 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:CorporateDebtSecuritiesMember 2019-12-31 0000006201 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:CorporateDebtSecuritiesMember 2019-12-31 0000006201 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:MoneyMarketFundsMember 2019-12-31 0000006201 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:MoneyMarketFundsMember 2019-12-31 0000006201 us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2019-12-31 0000006201 us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2018-12-31 0000006201 us-gaap:DefinedBenefitPlanEquitySecuritiesMidCapMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 aal:InsuranceGroupAnnuityContractsMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 us-gaap:DefinedBenefitPlanEquitySecuritiesMidCapMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 us-gaap:DefinedBenefitPlanEquitySecuritiesLargeCapMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 us-gaap:DefinedBenefitPlanEquitySecuritiesLargeCapMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 us-gaap:CorporateDebtSecuritiesMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 aal:InsuranceGroupAnnuityContractsMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 us-gaap:USGovernmentDebtSecuritiesMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 us-gaap:DefinedBenefitPlanCommonCollectiveTrustMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 us-gaap:PrivateEquityFundsMember us-gaap:FairValueMeasuredAtNetAssetValuePerShareMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 us-gaap:MutualFundMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 us-gaap:PrivateEquityFundsMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 us-gaap:DefinedBenefitPlanCommonCollectiveTrustMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 us-gaap:DefinedBenefitPlanEquitySecuritiesNonUsMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 us-gaap:MutualFundMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 us-gaap:DefinedBenefitPlanEquitySecuritiesNonUsMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 aal:DividendAndInterestReceivableMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 us-gaap:CorporateDebtSecuritiesMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 us-gaap:DefinedBenefitPlanCommonCollectiveTrustMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 aal:DueToFromBrokersForSaleOfSecuritiesMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 us-gaap:MutualFundMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 aal:InsuranceGroupAnnuityContractsMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 us-gaap:PrivateEquityFundsMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 us-gaap:PrivateEquityFundsMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 us-gaap:DefinedBenefitPlanCashAndCashEquivalentsMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 us-gaap:DefinedBenefitPlanEquitySecuritiesLargeCapMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 us-gaap:USGovernmentDebtSecuritiesMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 aal:DueToFromBrokersForSaleOfSecuritiesMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 us-gaap:DefinedBenefitPlanCashAndCashEquivalentsMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 aal:DividendAndInterestReceivableMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 us-gaap:USStatesAndPoliticalSubdivisionsMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 us-gaap:MutualFundMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 us-gaap:DefinedBenefitPlanEquitySecuritiesNonUsMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 us-gaap:DefinedBenefitPlanEquitySecuritiesNonUsMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 aal:CommonCollectiveTrustand1032InvestmentTrustsMember us-gaap:FairValueMeasuredAtNetAssetValuePerShareMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 aal:DueToFromBrokersForSaleOfSecuritiesMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 us-gaap:MortgageBackedSecuritiesMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 us-gaap:DefinedBenefitPlanEquitySecuritiesSmallCapMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 us-gaap:MortgageBackedSecuritiesMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 us-gaap:MortgageBackedSecuritiesMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 us-gaap:DefinedBenefitPlanCashAndCashEquivalentsMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 aal:DividendAndInterestReceivableMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 us-gaap:CorporateDebtSecuritiesMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 us-gaap:DefinedBenefitPlanCommonCollectiveTrustMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 us-gaap:MortgageBackedSecuritiesMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 us-gaap:DefinedBenefitPlanEquitySecuritiesSmallCapMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 aal:DueToFromBrokersForSaleOfSecuritiesMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 aal:InsuranceGroupAnnuityContractsMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 aal:DividendAndInterestReceivableMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 us-gaap:USStatesAndPoliticalSubdivisionsMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 us-gaap:DefinedBenefitPlanEquitySecuritiesMidCapMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 us-gaap:DefinedBenefitPlanEquitySecuritiesMidCapMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 us-gaap:DefinedBenefitPlanCashAndCashEquivalentsMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 us-gaap:PrivateEquityFundsMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 us-gaap:USGovernmentDebtSecuritiesMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 us-gaap:USGovernmentDebtSecuritiesMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 us-gaap:DefinedBenefitPlanEquitySecuritiesSmallCapMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 us-gaap:DefinedBenefitPlanEquitySecuritiesLargeCapMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 us-gaap:CorporateDebtSecuritiesMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 us-gaap:USStatesAndPoliticalSubdivisionsMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 us-gaap:USStatesAndPoliticalSubdivisionsMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 us-gaap:DefinedBenefitPlanEquitySecuritiesSmallCapMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 us-gaap:PrivateEquityFundsMember us-gaap:FairValueInputsLevel3Member us-gaap:PensionPlansDefinedBenefitMember 2019-01-01 2019-12-31 0000006201 aal:InsuranceGroupAnnuityContractsMember us-gaap:FairValueInputsLevel3Member us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 aal:InsuranceGroupAnnuityContractsMember us-gaap:FairValueInputsLevel3Member us-gaap:PensionPlansDefinedBenefitMember 2019-01-01 2019-12-31 0000006201 aal:InsuranceGroupAnnuityContractsMember us-gaap:FairValueInputsLevel3Member us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 us-gaap:PrivateEquityFundsMember us-gaap:FairValueInputsLevel3Member us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 us-gaap:PrivateEquityFundsMember us-gaap:FairValueInputsLevel3Member us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 us-gaap:MoneyMarketFundsMember us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2018-12-31 0000006201 us-gaap:MoneyMarketFundsMember us-gaap:FairValueInputsLevel3Member us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2018-12-31 0000006201 us-gaap:FairValueInputsLevel1Member us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2018-12-31 0000006201 aal:MutualFundAALClassMember us-gaap:FairValueInputsLevel1Member us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2018-12-31 0000006201 aal:MutualFundAALClassMember us-gaap:FairValueInputsLevel2Member us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2018-12-31 0000006201 us-gaap:FairValueInputsLevel2Member us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2018-12-31 0000006201 aal:MutualFundAALClassMember us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2018-12-31 0000006201 aal:MutualFundAALClassMember us-gaap:FairValueInputsLevel3Member us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2018-12-31 0000006201 us-gaap:MoneyMarketFundsMember us-gaap:FairValueInputsLevel1Member us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2018-12-31 0000006201 us-gaap:FairValueInputsLevel3Member us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2018-12-31 0000006201 us-gaap:MoneyMarketFundsMember us-gaap:FairValueInputsLevel2Member us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2018-12-31 0000006201 us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2017-01-01 2017-12-31 0000006201 us-gaap:PensionPlansDefinedBenefitMember 2018-01-01 2018-12-31 0000006201 us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2018-01-01 2018-12-31 0000006201 us-gaap:PensionPlansDefinedBenefitMember 2017-01-01 2017-12-31 0000006201 us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2017-12-31 0000006201 us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0000006201 us-gaap:DeferredProfitSharingMember 2019-12-31 0000006201 us-gaap:MutualFundMember aal:USGovernmentDebtSecuritiesandCorporateDebtSecuritiesMember 2019-12-31 0000006201 us-gaap:USGovernmentDebtSecuritiesMember aal:DomesticGovernmentSecuritiesMember 2018-12-31 0000006201 aal:DefinedBenefitPlanEquitySecuritiesFranceMember 2019-12-31 0000006201 us-gaap:USGovernmentDebtSecuritiesMember aal:EmergingMarketGovernmentSecuritiesMember 2018-12-31 0000006201 aal:DefinedBenefitPlanEquitySecuritiesCanadaMember 2019-12-31 0000006201 us-gaap:CorporateDebtSecuritiesMember aal:CorporateDebtWithStandardAndPoorsRatingAOrHigherMember 2018-12-31 0000006201 us-gaap:CorporateDebtSecuritiesMember aal:CorporateDebtWithStandardAndPoorsRatingAOrHigherMember 2019-12-31 0000006201 aal:CommonCollectiveTrustand1032InvestmentTrustsMember aal:CanadianSegregatedBalancedValueMember 2019-12-31 0000006201 us-gaap:MutualFundMember aal:USGovernmentDebtSecuritiesandCorporateDebtSecuritiesMember 2018-12-31 0000006201 aal:DefinedBenefitPlanEquitySecuritiesIrelandMember 2018-12-31 0000006201 aal:InternationalAssociationOfMachinistsAndAerospaceWorkersNationalPensionFundMember us-gaap:PensionPlansDefinedBenefitMember 2017-01-01 2017-12-31 0000006201 us-gaap:MutualFundMember aal:USCompaniesMember 2018-12-31 0000006201 aal:DefinedBenefitPlanEquitySecuritiesFranceMember 2018-12-31 0000006201 aal:CommonCollectiveTrustand1032InvestmentTrustsMember aal:CommonOrCollectiveInterestTrustShortTermSecuritiesMember 2019-12-31 0000006201 aal:DefinedBenefitPlanEquitySecuritiesUnitedKingdomMember 2019-12-31 0000006201 us-gaap:USGovernmentDebtSecuritiesMember aal:USBuyoutOpportunitiesMember 2018-12-31 0000006201 aal:DefinedBenefitPlanEquitySecuritiesSwitzerlandMember 2018-12-31 0000006201 us-gaap:MutualFundMember aal:USCompaniesMember 2019-12-31 0000006201 us-gaap:USGovernmentDebtSecuritiesMember aal:EmergingMarketGovernmentSecuritiesMember 2019-12-31 0000006201 us-gaap:PrivateEquityFundsMember 2018-01-01 2018-12-31 0000006201 aal:DefinedBenefitPlanEquitySecuritiesSouthKoreaMember 2019-12-31 0000006201 us-gaap:USGovernmentDebtSecuritiesMember aal:EuropeanBuyoutOpportunitiesMember 2018-12-31 0000006201 aal:DefinedBenefitPlanEquitySecuritiesJapanMember 2019-12-31 0000006201 us-gaap:MutualFundMember aal:InternationalCompaniesMember us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2019-12-31 0000006201 aal:InternationalAssociationOfMachinistsAndAerospaceWorkersNationalPensionFundMember us-gaap:PensionPlansDefinedBenefitMember 2019-06-14 2019-06-14 0000006201 us-gaap:USGovernmentDebtSecuritiesMember aal:DomesticGovernmentSecuritiesMember 2019-12-31 0000006201 aal:CommonCollectiveTrustand1032InvestmentTrustsMember aal:EmergingMarket10312InvestmentTrustMember 2018-12-31 0000006201 aal:DefinedBenefitPlanEquitySecuritiesUnitedKingdomMember 2018-12-31 0000006201 aal:CommonCollectiveTrustand1032InvestmentTrustsMember aal:CommonOrCollectiveTrustSecuritiesOfSmallerCompaniesOutsideUSMember 2019-12-31 0000006201 aal:DefinedBenefitPlanEquitySecuritiesNonUSEmergingMarketsMember 2018-12-31 0000006201 srt:MaximumMember us-gaap:PrivateEquityFundsMember 2018-01-01 2018-12-31 0000006201 aal:CommonCollectiveTrustand1032InvestmentTrustsMember aal:CanadianSegregatedBalancedValueMember 2018-12-31 0000006201 us-gaap:CorporateDebtSecuritiesMember aal:InternationalCompaniesMember 2018-12-31 0000006201 us-gaap:CorporateDebtSecuritiesMember aal:InternationalCompaniesMember 2019-12-31 0000006201 us-gaap:MutualFundMember aal:InternationalCompaniesMember 2019-12-31 0000006201 aal:DefinedBenefitPlanEquitySecuritiesNonUSIndividuallyImmaterialMember 2018-12-31 0000006201 aal:InternationalAssociationOfMachinistsAndAerospaceWorkersNationalPensionFundMember us-gaap:PensionPlansDefinedBenefitMember 2019-03-29 0000006201 us-gaap:CorporateDebtSecuritiesMember aal:USCompaniesMember 2018-12-31 0000006201 us-gaap:CorporateDebtSecuritiesMember aal:CorporateDebtWithStandardAndPoorsRatingLowerThanAMember 2019-12-31 0000006201 us-gaap:CorporateDebtSecuritiesMember aal:CorporateDebtWithStandardAndPoorsRatingLowerThanAMember 2018-12-31 0000006201 us-gaap:MutualFundMember aal:InternationalCompaniesMember us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2018-12-31 0000006201 us-gaap:USGovernmentDebtSecuritiesMember aal:OtherInternationalGovernmentSecuritiesMember 2018-12-31 0000006201 2012-01-01 2012-12-31 0000006201 us-gaap:CorporateDebtSecuritiesMember aal:EmergingMarketCompaniesMember 2019-12-31 0000006201 aal:InternationalAssociationOfMachinistsAndAerospaceWorkersNationalPensionFundMember us-gaap:PensionPlansDefinedBenefitMember 2018-01-01 2018-12-31 0000006201 us-gaap:DeferredProfitSharingMember 2019-01-01 2019-12-31 0000006201 us-gaap:USGovernmentDebtSecuritiesMember aal:OtherInternationalGovernmentSecuritiesMember 2019-12-31 0000006201 aal:DefinedBenefitPlanEquitySecuritiesJapanMember 2018-12-31 0000006201 aal:CommonCollectiveTrustand1032InvestmentTrustsMember aal:CommonOrCollectiveTrustMember 2018-12-31 0000006201 aal:InternationalAssociationOfMachinistsAndAerospaceWorkersNationalPensionFundMember us-gaap:PensionPlansDefinedBenefitMember 2019-01-01 2019-12-31 0000006201 aal:CommonCollectiveTrustand1032InvestmentTrustsMember aal:EmergingMarket10312InvestmentTrustMember 2019-12-31 0000006201 aal:DefinedBenefitPlanEquitySecuritiesIrelandMember 2019-12-31 0000006201 srt:MaximumMember us-gaap:PrivateEquityFundsMember 2019-01-01 2019-12-31 0000006201 us-gaap:PrivateEquityFundsMember 2019-01-01 2019-12-31 0000006201 aal:DefinedBenefitPlanEquitySecuritiesNonUSIndividuallyImmaterialMember 2019-12-31 0000006201 aal:DefinedBenefitPlanEquitySecuritiesNonUSEmergingMarketsMember 2019-12-31 0000006201 aal:DefinedBenefitPlanEquitySecuritiesSwitzerlandMember 2019-12-31 0000006201 us-gaap:CorporateDebtSecuritiesMember aal:EmergingMarketCompaniesMember 2018-12-31 0000006201 us-gaap:CorporateDebtSecuritiesMember aal:USCompaniesMember 2019-12-31 0000006201 us-gaap:MutualFundMember aal:InternationalCompaniesMember 2018-12-31 0000006201 aal:CommonCollectiveTrustand1032InvestmentTrustsMember aal:CommonOrCollectiveTrustSecuritiesOfLargerCompaniesWithinUSMember 2019-12-31 0000006201 aal:CommonCollectiveTrustand1032InvestmentTrustsMember aal:CommonOrCollectiveInterestTrustShortTermSecuritiesMember 2018-12-31 0000006201 aal:InsuranceGroupAnnuityContractsMember us-gaap:FairValueInputsLevel3Member us-gaap:PensionPlansDefinedBenefitMember 2018-01-01 2018-12-31 0000006201 us-gaap:PrivateEquityFundsMember us-gaap:FairValueInputsLevel3Member us-gaap:PensionPlansDefinedBenefitMember 2018-01-01 2018-12-31 0000006201 aal:InsuranceGroupAnnuityContractsMember us-gaap:FairValueInputsLevel3Member us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0000006201 us-gaap:PrivateEquityFundsMember us-gaap:FairValueInputsLevel3Member us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0000006201 aal:MutualFundAALClassMember us-gaap:FairValueInputsLevel2Member us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2019-12-31 0000006201 aal:MutualFundAALClassMember us-gaap:FairValueInputsLevel1Member us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2019-12-31 0000006201 aal:MutualFundAALClassMember us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2019-12-31 0000006201 us-gaap:MoneyMarketFundsMember us-gaap:FairValueInputsLevel3Member us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2019-12-31 0000006201 us-gaap:FairValueInputsLevel1Member us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2019-12-31 0000006201 us-gaap:FairValueInputsLevel2Member us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2019-12-31 0000006201 us-gaap:MoneyMarketFundsMember us-gaap:FairValueInputsLevel2Member us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2019-12-31 0000006201 us-gaap:MoneyMarketFundsMember us-gaap:FairValueInputsLevel1Member us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2019-12-31 0000006201 aal:MutualFundAALClassMember us-gaap:FairValueInputsLevel3Member us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2019-12-31 0000006201 us-gaap:FairValueInputsLevel3Member us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2019-12-31 0000006201 us-gaap:MoneyMarketFundsMember us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2019-12-31 0000006201 aal:DueToFromBrokersForSaleOfSecuritiesMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 us-gaap:USGovernmentDebtSecuritiesMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 aal:InsuranceGroupAnnuityContractsMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 us-gaap:DefinedBenefitPlanEquitySecuritiesLargeCapMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 us-gaap:DefinedBenefitPlanCashAndCashEquivalentsMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 us-gaap:DefinedBenefitPlanEquitySecuritiesMidCapMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 us-gaap:DefinedBenefitPlanEquitySecuritiesNonUsMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 us-gaap:MutualFundMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 us-gaap:DefinedBenefitPlanEquitySecuritiesSmallCapMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 us-gaap:USStatesAndPoliticalSubdivisionsMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 aal:DividendAndInterestReceivableMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 us-gaap:USStatesAndPoliticalSubdivisionsMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 aal:InsuranceGroupAnnuityContractsMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 us-gaap:DefinedBenefitPlanEquitySecuritiesNonUsMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 us-gaap:DefinedBenefitPlanEquitySecuritiesNonUsMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 us-gaap:DefinedBenefitPlanCashAndCashEquivalentsMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 us-gaap:CorporateDebtSecuritiesMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 us-gaap:USStatesAndPoliticalSubdivisionsMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 us-gaap:DefinedBenefitPlanEquitySecuritiesLargeCapMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 us-gaap:DefinedBenefitPlanEquitySecuritiesSmallCapMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 us-gaap:DefinedBenefitPlanCommonCollectiveTrustMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 us-gaap:CorporateDebtSecuritiesMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 us-gaap:DefinedBenefitPlanEquitySecuritiesMidCapMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 us-gaap:MutualFundMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 us-gaap:DefinedBenefitPlanEquitySecuritiesMidCapMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 aal:DueToFromBrokersForSaleOfSecuritiesMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 us-gaap:DefinedBenefitPlanCommonCollectiveTrustMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 us-gaap:PrivateEquityFundsMember us-gaap:FairValueMeasuredAtNetAssetValuePerShareMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 us-gaap:DefinedBenefitPlanCommonCollectiveTrustMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 us-gaap:DefinedBenefitPlanCashAndCashEquivalentsMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 aal:OtherPlanAssetCategoriesLiabilitiesNetMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 us-gaap:DefinedBenefitPlanEquitySecuritiesLargeCapMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 aal:DividendAndInterestReceivableMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 us-gaap:DefinedBenefitPlanEquitySecuritiesSmallCapMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 aal:DueToFromBrokersForSaleOfSecuritiesMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 us-gaap:PrivateEquityFundsMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 us-gaap:DefinedBenefitPlanCashAndCashEquivalentsMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 us-gaap:CorporateDebtSecuritiesMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 aal:InsuranceGroupAnnuityContractsMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 us-gaap:DefinedBenefitPlanEquitySecuritiesNonUsMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 us-gaap:MutualFundMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 aal:DividendAndInterestReceivableMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 aal:DueToFromBrokersForSaleOfSecuritiesMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 us-gaap:MutualFundMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 aal:OtherPlanAssetCategoriesLiabilitiesNetMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 us-gaap:USStatesAndPoliticalSubdivisionsMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 us-gaap:DefinedBenefitPlanEquitySecuritiesSmallCapMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 aal:OtherPlanAssetCategoriesLiabilitiesNetMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 us-gaap:USGovernmentDebtSecuritiesMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 aal:OtherPlanAssetCategoriesLiabilitiesNetMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 us-gaap:DefinedBenefitPlanEquitySecuritiesLargeCapMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 us-gaap:USGovernmentDebtSecuritiesMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 us-gaap:USGovernmentDebtSecuritiesMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 us-gaap:PrivateEquityFundsMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 us-gaap:CorporateDebtSecuritiesMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 us-gaap:DefinedBenefitPlanEquitySecuritiesMidCapMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 us-gaap:PrivateEquityFundsMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 aal:CommonCollectiveTrustand1032InvestmentTrustsMember us-gaap:FairValueMeasuredAtNetAssetValuePerShareMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 us-gaap:DefinedBenefitPlanCommonCollectiveTrustMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 aal:DividendAndInterestReceivableMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 us-gaap:PrivateEquityFundsMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 aal:InsuranceGroupAnnuityContractsMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 srt:MaximumMember us-gaap:DefinedBenefitPlanDebtSecurityMember 2019-12-31 0000006201 srt:MaximumMember us-gaap:DefinedBenefitPlanEquitySecuritiesNonUsMember 2019-12-31 0000006201 srt:MinimumMember aal:FixedIncomeUSLongDurationMember 2019-12-31 0000006201 srt:MinimumMember aal:FixedIncomeEmergingMarketsMember 2019-12-31 0000006201 srt:MinimumMember us-gaap:DefinedBenefitPlanEquitySecuritiesNonUsMember 2019-12-31 0000006201 srt:MaximumMember aal:FixedIncomeEmergingMarketsMember 2019-12-31 0000006201 srt:MaximumMember aal:PrivateFixedIncomeMember 2019-12-31 0000006201 srt:MaximumMember us-gaap:DefinedBenefitPlanEquitySecuritiesUsMidCapMember 2019-12-31 0000006201 srt:MinimumMember aal:DefinedBenefitPlanOtherInvestmentMember 2019-12-31 0000006201 srt:MinimumMember aal:PrivateFixedIncomeMember 2019-12-31 0000006201 srt:MinimumMember us-gaap:DefinedBenefitPlanDebtSecurityMember 2019-12-31 0000006201 srt:MinimumMember us-gaap:DefinedBenefitPlanEquitySecuritiesUsLargeCapMember 2019-12-31 0000006201 srt:MaximumMember us-gaap:DefinedBenefitPlanEquitySecuritiesMember 2019-12-31 0000006201 srt:MaximumMember us-gaap:DefinedBenefitPlanEquitySecuritiesUsLargeCapMember 2019-12-31 0000006201 srt:MinimumMember us-gaap:DefinedBenefitPlanEquitySecuritiesMember 2019-12-31 0000006201 srt:MinimumMember us-gaap:DefinedBenefitPlanEquitySecuritiesUsMidCapMember 2019-12-31 0000006201 srt:MaximumMember aal:AlternativeInvestmentMember 2019-12-31 0000006201 srt:MinimumMember aal:AlternativeInvestmentMember 2019-12-31 0000006201 srt:MinimumMember us-gaap:DefinedBenefitPlanCashAndCashEquivalentsMember 2019-12-31 0000006201 srt:MaximumMember aal:DefinedBenefitPlanOtherInvestmentMember 2019-12-31 0000006201 srt:MaximumMember aal:FixedIncomeUSLongDurationMember 2019-12-31 0000006201 srt:MaximumMember aal:EmergingMarketsMember 2019-12-31 0000006201 srt:MinimumMember aal:EmergingMarketsMember 2019-12-31 0000006201 srt:MaximumMember us-gaap:DefinedBenefitPlanCashAndCashEquivalentsMember 2019-12-31 0000006201 srt:MinimumMember us-gaap:PrivateEquityFundsMember 2018-01-01 2018-12-31 0000006201 srt:MinimumMember us-gaap:PrivateEquityFundsMember 2019-01-01 2019-12-31 0000006201 us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetUnamortizedGainLossMember 2018-01-01 2018-12-31 0000006201 us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceCostCreditMember 2018-01-01 2018-12-31 0000006201 us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetUnamortizedGainLossMember 2019-01-01 2019-12-31 0000006201 us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceCostCreditMember 2019-01-01 2019-12-31 0000006201 us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember 2018-01-01 2018-12-31 0000006201 us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember 2018-12-31 0000006201 us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember 2019-01-01 2019-12-31 0000006201 us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember 2018-01-01 2018-12-31 0000006201 us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember 2019-12-31 0000006201 us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember 2018-12-31 0000006201 us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember 2019-01-01 2019-12-31 0000006201 us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember 2017-12-31 0000006201 us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember 2019-12-31 0000006201 us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember 2017-12-31 0000006201 aal:JetFuelFacilityConstructionProjectsandInformationTechnologySupportMember 2019-12-31 0000006201 2018-06-15 2018-06-15 0000006201 us-gaap:RegionalCarrierMember 2019-12-31 0000006201 aal:EetcLeveragedLeaseFinancingsMember 2019-12-31 0000006201 aal:SpecialFacilityRevenueBondsMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:AirlineCapacityPurchaseArrangementsMember 2019-12-31 0000006201 srt:SubsidiariesMember aal:JetFuelFacilityConstructionProjectsandInformationTechnologySupportMember 2019-12-31 0000006201 2015-06-01 2015-06-30 0000006201 aal:PurchaseAndLeaseCommitmentsMember 2019-12-31 0000006201 us-gaap:RestrictedStockUnitsRSUMember 2019-12-31 0000006201 aal:AagIncentiveAwardPlan2013Member 2013-12-31 0000006201 us-gaap:RestrictedStockUnitsRSUMember 2019-01-01 2019-12-31 0000006201 us-gaap:RestrictedStockUnitsRSUMember 2018-01-01 2018-12-31 0000006201 us-gaap:RestrictedStockUnitsRSUMember 2017-01-01 2017-12-31 0000006201 us-gaap:RestrictedStockUnitsRSUMember 2018-12-31 0000006201 us-gaap:RestrictedStockUnitsRSUMember 2017-12-31 0000006201 us-gaap:RestrictedStockUnitsRSUMember 2016-12-31 0000006201 us-gaap:AllowanceForCreditLossMember 2017-12-31 0000006201 us-gaap:InventoryValuationReserveMember 2019-12-31 0000006201 us-gaap:InventoryValuationReserveMember 2017-01-01 2017-12-31 0000006201 us-gaap:InventoryValuationReserveMember 2019-01-01 2019-12-31 0000006201 us-gaap:InventoryValuationReserveMember 2018-12-31 0000006201 us-gaap:AllowanceForCreditLossMember 2018-01-01 2018-12-31 0000006201 us-gaap:AllowanceForCreditLossMember 2019-01-01 2019-12-31 0000006201 us-gaap:InventoryValuationReserveMember 2018-01-01 2018-12-31 0000006201 us-gaap:InventoryValuationReserveMember 2016-12-31 0000006201 us-gaap:AllowanceForCreditLossMember 2016-12-31 0000006201 us-gaap:InventoryValuationReserveMember 2017-12-31 0000006201 us-gaap:AllowanceForCreditLossMember 2017-01-01 2017-12-31 0000006201 us-gaap:AllowanceForCreditLossMember 2018-12-31 0000006201 us-gaap:AllowanceForCreditLossMember 2019-12-31 0000006201 us-gaap:RevolvingCreditFacilityMember aal:CreditFacility2014Member us-gaap:SecuredDebtMember us-gaap:SubsequentEventMember us-gaap:LondonInterbankOfferedRateLIBORMember 2020-01-01 2020-01-31 0000006201 us-gaap:RevolvingCreditFacilityMember aal:CreditFacility2014Member us-gaap:SecuredDebtMember us-gaap:SubsequentEventMember us-gaap:BaseRateMember 2020-01-01 2020-01-31 0000006201 us-gaap:RevolvingCreditFacilityMember aal:CreditFacility2014Member us-gaap:SecuredDebtMember us-gaap:BaseRateMember 2019-01-01 2019-12-31 0000006201 us-gaap:SubsequentEventMember 2020-01-01 2020-01-31 0000006201 us-gaap:RevolvingCreditFacilityMember aal:CreditFacility2014Member us-gaap:SecuredDebtMember us-gaap:SubsequentEventMember us-gaap:LondonInterbankOfferedRateLIBORMember 2020-01-31 0000006201 srt:SubsidiariesMember 2018-01-01 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:CargoAndFreightMember 2018-01-01 2018-12-31 0000006201 srt:SubsidiariesMember 2017-01-01 2017-12-31 0000006201 srt:SubsidiariesMember us-gaap:ProductAndServiceOtherMember 2019-01-01 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:CargoAndFreightMember 2019-01-01 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:PassengerMember 2018-01-01 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:ProductAndServiceOtherMember 2018-01-01 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:CargoAndFreightMember 2017-01-01 2017-12-31 0000006201 srt:SubsidiariesMember us-gaap:PassengerMember 2017-01-01 2017-12-31 0000006201 srt:SubsidiariesMember us-gaap:PassengerMember 2019-01-01 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:ProductAndServiceOtherMember 2017-01-01 2017-12-31 0000006201 srt:SubsidiariesMember 2018-12-31 0000006201 srt:SubsidiariesMember 2019-12-31 0000006201 srt:SubsidiariesMember aal:LoyaltyProgramMember 2018-12-31 0000006201 srt:SubsidiariesMember aal:LoyaltyProgramMember 2019-12-31 0000006201 srt:SubsidiariesMember aal:AirTrafficMember 2019-12-31 0000006201 srt:SubsidiariesMember aal:AirTrafficMember 2018-12-31 0000006201 srt:SubsidiariesMember 2017-12-31 0000006201 srt:SubsidiariesMember 2016-12-31 0000006201 srt:SubsidiariesMember aal:AirTrafficMember 2017-01-01 2017-12-31 0000006201 srt:SubsidiariesMember aal:AirTrafficMember 2018-01-01 2018-12-31 0000006201 srt:SubsidiariesMember aal:AirTrafficMember 2019-01-01 2019-12-31 0000006201 srt:SubsidiariesMember aal:LoyaltyProgramMember 2018-01-01 2018-12-31 0000006201 srt:SubsidiariesMember aal:LoyaltyProgramMember 2019-01-01 2019-12-31 0000006201 srt:SubsidiariesMember aal:LoyaltyProgramMember 2017-01-01 2017-12-31 0000006201 srt:SubsidiariesMember us-gaap:AccountingStandardsUpdate201602Member 2018-01-01 0000006201 srt:SubsidiariesMember us-gaap:AccountingStandardsUpdate201602Member us-gaap:RetainedEarningsMember 2018-01-01 0000006201 srt:SubsidiariesMember us-gaap:AdditionalPaidInCapitalMember 2017-12-31 0000006201 srt:SubsidiariesMember us-gaap:AccumulatedOtherComprehensiveIncomeMember 2017-01-01 2017-12-31 0000006201 srt:SubsidiariesMember us-gaap:AdditionalPaidInCapitalMember 2017-01-01 2017-12-31 0000006201 srt:SubsidiariesMember us-gaap:AdditionalPaidInCapitalMember 2016-12-31 0000006201 srt:SubsidiariesMember us-gaap:AdditionalPaidInCapitalMember 2019-01-01 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:AccountingStandardsUpdate201601Member us-gaap:RetainedEarningsMember 2018-01-01 0000006201 srt:SubsidiariesMember us-gaap:AccumulatedOtherComprehensiveIncomeMember 2019-01-01 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:AccountingStandardsUpdate201601Member 2018-01-01 0000006201 srt:SubsidiariesMember us-gaap:RetainedEarningsMember 2017-01-01 2017-12-31 0000006201 srt:SubsidiariesMember us-gaap:AdditionalPaidInCapitalMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:RetainedEarningsMember 2016-12-31 0000006201 srt:SubsidiariesMember us-gaap:RetainedEarningsMember 2018-01-01 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:CommonStockMember 2017-12-31 0000006201 srt:SubsidiariesMember us-gaap:AccumulatedOtherComprehensiveIncomeMember 2018-01-01 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:RetainedEarningsMember 2019-01-01 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:CommonStockMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:CommonStockMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:CommonStockMember 2016-12-31 0000006201 srt:SubsidiariesMember us-gaap:AdditionalPaidInCapitalMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:RetainedEarningsMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:AccumulatedOtherComprehensiveIncomeMember 2016-12-31 0000006201 srt:SubsidiariesMember us-gaap:AccumulatedOtherComprehensiveIncomeMember 2017-12-31 0000006201 srt:SubsidiariesMember us-gaap:RetainedEarningsMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:RetainedEarningsMember 2017-12-31 0000006201 srt:SubsidiariesMember us-gaap:AccumulatedOtherComprehensiveIncomeMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:AccumulatedOtherComprehensiveIncomeMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:AdditionalPaidInCapitalMember 2018-01-01 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:PassengerMember us-gaap:PacificDestinationMember 2019-01-01 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:PassengerMember us-gaap:DomesticDestinationMember 2018-01-01 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:PassengerMember us-gaap:PacificDestinationMember 2018-01-01 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:PassengerMember us-gaap:PacificDestinationMember 2017-01-01 2017-12-31 0000006201 srt:SubsidiariesMember us-gaap:PassengerMember us-gaap:AtlanticDestinationMember 2018-01-01 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:PassengerMember us-gaap:AtlanticDestinationMember 2019-01-01 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:PassengerMember us-gaap:AtlanticDestinationMember 2017-01-01 2017-12-31 0000006201 srt:SubsidiariesMember us-gaap:PassengerMember us-gaap:LatinAmericaDestinationMember 2017-01-01 2017-12-31 0000006201 srt:SubsidiariesMember us-gaap:PassengerMember us-gaap:LatinAmericaDestinationMember 2019-01-01 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:PassengerMember us-gaap:DomesticDestinationMember 2017-01-01 2017-12-31 0000006201 srt:SubsidiariesMember us-gaap:PassengerMember us-gaap:LatinAmericaDestinationMember 2018-01-01 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:PassengerMember us-gaap:DomesticDestinationMember 2019-01-01 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:RegionalCarrierMember 2018-01-01 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:RegionalCarrierMember 2017-01-01 2017-12-31 0000006201 srt:SubsidiariesMember us-gaap:RegionalCarrierMember 2019-01-01 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:TradeNamesMember 2019-12-31 0000006201 srt:SubsidiariesMember aal:AirportTakeOffAndLandingSlotsMember 2018-12-31 0000006201 srt:SubsidiariesMember aal:AirportTakeOffAndLandingSlotsMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:MarketingRelatedIntangibleAssetsMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:CustomerRelationshipsMember 2018-12-31 0000006201 srt:SubsidiariesMember aal:AirportGateLeaseholdRightsMember 2018-12-31 0000006201 srt:SubsidiariesMember aal:AirportGateLeaseholdRightsMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:MarketingRelatedIntangibleAssetsMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:CustomerRelationshipsMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:TradeNamesMember 2018-12-31 0000006201 srt:SubsidiariesMember srt:MinimumMember aal:AircraftEnginesAndRelatedRotablePartsMember 2019-12-31 0000006201 srt:SubsidiariesMember aal:AirportTakeOffAndLandingSlotsMember 2019-01-01 2019-12-31 0000006201 srt:SubsidiariesMember aal:RepublicAirlineIncMember us-gaap:RegionalCarrierMember 2017-01-01 2017-12-31 0000006201 srt:SubsidiariesMember 2017-12-22 2017-12-22 0000006201 srt:SubsidiariesMember us-gaap:CustomerRelationshipsMember 2019-01-01 2019-12-31 0000006201 srt:SubsidiariesMember aal:RepublicAirlineIncMember us-gaap:RegionalCarrierMember 2018-01-01 2018-12-31 0000006201 srt:SubsidiariesMember aal:LoyaltyProgramMarketingServicesMember 2017-01-01 2017-12-31 0000006201 srt:SubsidiariesMember aal:LoyaltyProgramMarketingServicesMember 2019-01-01 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:MarketingRelatedIntangibleAssetsMember 2019-01-01 2019-12-31 0000006201 srt:SubsidiariesMember aal:RepublicAirlineIncMember us-gaap:RegionalCarrierMember 2019-01-01 2019-12-31 0000006201 srt:SubsidiariesMember aal:RepublicAirwaysHoldingsInc.Member 2019-12-31 0000006201 srt:SubsidiariesMember srt:MaximumMember aal:AircraftEnginesAndRelatedRotablePartsMember 2019-12-31 0000006201 srt:SubsidiariesMember aal:OtherRevenueMember 2017-01-01 2017-12-31 0000006201 srt:SubsidiariesMember aal:OtherRevenueMember 2018-01-01 2018-12-31 0000006201 srt:SubsidiariesMember aal:PassengerTravelMember 2018-01-01 2018-12-31 0000006201 srt:SubsidiariesMember aal:LoyaltyProgramTravelRedemptionsMember 2018-01-01 2018-12-31 0000006201 srt:SubsidiariesMember aal:OtherRevenueMember 2019-01-01 2019-12-31 0000006201 srt:SubsidiariesMember aal:LoyaltyProgramTravelRedemptionsMember 2019-01-01 2019-12-31 0000006201 srt:SubsidiariesMember aal:PassengerTravelMember 2017-01-01 2017-12-31 0000006201 srt:SubsidiariesMember aal:LoyaltyProgramTravelRedemptionsMember 2017-01-01 2017-12-31 0000006201 srt:SubsidiariesMember aal:PassengerTravelMember 2019-01-01 2019-12-31 0000006201 srt:SubsidiariesMember aal:LoyaltyProgramMarketingServicesMember 2018-01-01 2018-12-31 0000006201 srt:SubsidiariesMember aal:AirportGateLeaseholdRightsMember 2019-01-01 2019-12-31 0000006201 srt:SubsidiariesMember srt:MinimumMember aal:AircraftEnginesAndRelatedRotablePartsMember 2019-01-01 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:EnhancedEquipmentTrustCertificateMember us-gaap:SecuredDebtMember 2019-01-01 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:PensionPlansDefinedBenefitMember 2019-01-01 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2019-01-01 2019-12-31 0000006201 srt:SubsidiariesMember srt:MaximumMember aal:AircraftEnginesAndRelatedRotablePartsMember 2019-01-01 2019-12-31 0000006201 srt:SubsidiariesMember srt:MaximumMember us-gaap:FurnitureAndFixturesMember 2019-01-01 2019-12-31 0000006201 srt:SubsidiariesMember srt:MinimumMember aal:CapitalizedSoftwareMember 2019-01-01 2019-12-31 0000006201 srt:SubsidiariesMember srt:MaximumMember us-gaap:BuildingAndBuildingImprovementsMember 2019-01-01 2019-12-31 0000006201 srt:SubsidiariesMember srt:MaximumMember aal:CapitalizedSoftwareMember 2019-01-01 2019-12-31 0000006201 srt:SubsidiariesMember srt:MinimumMember us-gaap:FurnitureAndFixturesMember 2019-01-01 2019-12-31 0000006201 srt:SubsidiariesMember srt:MinimumMember us-gaap:BuildingAndBuildingImprovementsMember 2019-01-01 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:MainlineMember 2017-01-01 2017-12-31 0000006201 srt:SubsidiariesMember aal:CreditFacility2013Member us-gaap:SecuredDebtMember 2018-12-31 0000006201 srt:SubsidiariesMember aal:EquipmentLoansAndOtherNotesPayableMember us-gaap:SecuredDebtMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:SecuredDebtMember 2019-12-31 0000006201 srt:SubsidiariesMember aal:SpecialFacilityRevenueBondsMember us-gaap:SecuredDebtMember 2019-12-31 0000006201 srt:SubsidiariesMember aal:CreditFacilityApril2016Member us-gaap:SecuredDebtMember 2019-12-31 0000006201 srt:SubsidiariesMember aal:CreditFacilityDecember2016Member us-gaap:SecuredDebtMember 2018-12-31 0000006201 srt:SubsidiariesMember aal:CreditFacilityApril2016Member us-gaap:SecuredDebtMember 2018-12-31 0000006201 srt:SubsidiariesMember aal:EquipmentLoansAndOtherNotesPayableMember us-gaap:SecuredDebtMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:EnhancedEquipmentTrustCertificateMember us-gaap:SecuredDebtMember 2018-12-31 0000006201 srt:SubsidiariesMember aal:SpecialFacilityRevenueBondsMember us-gaap:SecuredDebtMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:SecuredDebtMember 2018-12-31 0000006201 srt:SubsidiariesMember aal:CreditFacilityDecember2016Member us-gaap:SecuredDebtMember 2019-12-31 0000006201 srt:SubsidiariesMember aal:CreditFacility2013Member us-gaap:SecuredDebtMember 2019-12-31 0000006201 srt:SubsidiariesMember aal:CreditFacility2014Member us-gaap:SecuredDebtMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:EnhancedEquipmentTrustCertificateMember us-gaap:SecuredDebtMember 2019-12-31 0000006201 srt:SubsidiariesMember aal:CreditFacility2014Member us-gaap:SecuredDebtMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:LetterOfCreditMember aal:CreditFacility2014Member us-gaap:SecuredDebtMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:SecuredDebtMember 2019-01-01 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:RevolvingCreditFacilityMember aal:CreditFacility2013Member us-gaap:SecuredDebtMember 2019-10-31 0000006201 srt:SubsidiariesMember us-gaap:RevolvingCreditFacilityMember aal:CreditFacilityApril2016Member us-gaap:SecuredDebtMember 2019-11-30 0000006201 srt:SubsidiariesMember us-gaap:RevolvingCreditFacilityMember 2019-01-01 2019-12-31 0000006201 srt:SubsidiariesMember aal:TermLoanFacilityMember us-gaap:SecuredDebtMember 2019-01-01 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:RevolvingCreditFacilityMember aal:CreditFacility2013Member us-gaap:SecuredDebtMember 2019-11-30 0000006201 srt:SubsidiariesMember aal:SeniorNotes5.00Due2022Member us-gaap:UnsecuredDebtMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:LetterOfCreditMember aal:CreditFacility2013Member us-gaap:SecuredDebtMember 2019-12-31 0000006201 srt:SubsidiariesMember aal:SeniorNotes4.625Duein2020Member us-gaap:UnsecuredDebtMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:RevolvingCreditFacilityMember aal:CreditFacility2014Member us-gaap:SecuredDebtMember 2019-10-31 0000006201 srt:SubsidiariesMember us-gaap:RevolvingCreditFacilityMember aal:CreditFacility2014Member us-gaap:SecuredDebtMember 2019-11-30 0000006201 srt:SubsidiariesMember us-gaap:RevolvingCreditFacilityMember aal:CreditFacilityApril2016Member us-gaap:SecuredDebtMember 2019-10-31 0000006201 srt:SubsidiariesMember us-gaap:RevolvingCreditFacilityMember aal:ShortTermRevolvingCreditFacilityMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:RevolvingCreditFacilityMember aal:CreditFacilityApril2016Member 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:RevolvingCreditFacilityMember aal:CreditFacility2013Member 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:RevolvingCreditFacilityMember aal:CreditFacility2014Member 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:RevolvingCreditFacilityMember 2019-12-31 0000006201 srt:SubsidiariesMember aal:TermLoanFacilityMember aal:CreditFacilityApril2016Member us-gaap:SecuredDebtMember us-gaap:LondonInterbankOfferedRateLIBORMember 2019-01-01 2019-12-31 0000006201 srt:SubsidiariesMember aal:TermLoanFacilityMember aal:CreditFacilityApril2016Member us-gaap:SecuredDebtMember us-gaap:LondonInterbankOfferedRateLIBORMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:RevolvingCreditFacilityMember aal:CreditFacility2014Member us-gaap:SecuredDebtMember us-gaap:LondonInterbankOfferedRateLIBORMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:RevolvingCreditFacilityMember aal:CreditFacilityApril2016Member us-gaap:SecuredDebtMember us-gaap:LondonInterbankOfferedRateLIBORMember 2019-12-31 0000006201 srt:SubsidiariesMember aal:TermLoanFacilityMember aal:CreditFacility2014Member us-gaap:SecuredDebtMember us-gaap:LondonInterbankOfferedRateLIBORMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:RevolvingCreditFacilityMember aal:CreditFacility2013Member us-gaap:SecuredDebtMember us-gaap:LondonInterbankOfferedRateLIBORMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:RevolvingCreditFacilityMember aal:CreditFacility2013Member us-gaap:SecuredDebtMember us-gaap:LondonInterbankOfferedRateLIBORMember 2019-01-01 2019-12-31 0000006201 srt:SubsidiariesMember aal:TermLoanFacilityMember aal:CreditFacility2013Member us-gaap:SecuredDebtMember us-gaap:LondonInterbankOfferedRateLIBORMember 2019-01-01 2019-12-31 0000006201 srt:SubsidiariesMember aal:TermLoanFacilityMember aal:CreditFacilityDecember2016Member us-gaap:SecuredDebtMember us-gaap:LondonInterbankOfferedRateLIBORMember 2019-01-01 2019-12-31 0000006201 srt:SubsidiariesMember aal:TermLoanFacilityMember aal:CreditFacility2014Member us-gaap:SecuredDebtMember us-gaap:LondonInterbankOfferedRateLIBORMember 2019-01-01 2019-12-31 0000006201 srt:SubsidiariesMember aal:TermLoanFacilityMember aal:CreditFacilityDecember2016Member us-gaap:SecuredDebtMember us-gaap:LondonInterbankOfferedRateLIBORMember 2019-12-31 0000006201 srt:SubsidiariesMember aal:TermLoanFacilityMember aal:CreditFacility2013Member us-gaap:SecuredDebtMember us-gaap:LondonInterbankOfferedRateLIBORMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:RevolvingCreditFacilityMember aal:CreditFacilityApril2016Member us-gaap:SecuredDebtMember us-gaap:LondonInterbankOfferedRateLIBORMember 2019-01-01 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:RevolvingCreditFacilityMember aal:CreditFacility2014Member us-gaap:SecuredDebtMember us-gaap:LondonInterbankOfferedRateLIBORMember 2019-01-01 2019-12-31 0000006201 srt:SubsidiariesMember srt:MinimumMember us-gaap:EnhancedEquipmentTrustCertificateMember us-gaap:SecuredDebtMember 2019-12-31 0000006201 srt:SubsidiariesMember srt:MaximumMember aal:EquipmentLoansAndOtherNotesPayableMember us-gaap:SecuredDebtMember 2019-12-31 0000006201 srt:SubsidiariesMember srt:MinimumMember aal:EquipmentLoansAndOtherNotesPayableMember us-gaap:SecuredDebtMember 2019-12-31 0000006201 srt:SubsidiariesMember srt:MaximumMember us-gaap:EnhancedEquipmentTrustCertificateMember us-gaap:SecuredDebtMember 2019-12-31 0000006201 srt:SubsidiariesMember aal:RepublicAirlineIncMember 2018-01-01 2018-12-31 0000006201 srt:SubsidiariesMember srt:MaximumMember 2019-12-31 2019-12-31 0000006201 srt:SubsidiariesMember srt:MinimumMember 2019-12-31 2019-12-31 0000006201 srt:SubsidiariesMember aal:RepublicAirlineIncMember 2019-01-01 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:StateAndLocalJurisdictionMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:DomesticCountryMember 2019-12-31 0000006201 srt:SubsidiariesMember aal:AlternativeMinimumTaxCreditCarryforwardMember 2019-12-31 0000006201 srt:SubsidiariesMember aal:VariableRateDebtMember 2019-12-31 0000006201 srt:SubsidiariesMember aal:ChinaSouthernAirlinesCompanyLimitedMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:BankTimeDepositsMember aal:MaturityDatesExceedingOneYearMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:CorporateDebtSecuritiesMember aal:MaturityDatesExceedingOneYearMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:BankTimeDepositsMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:RepurchaseAgreementsMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:RepurchaseAgreementsMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:CorporateDebtSecuritiesMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:FairValueMeasurementsRecurringMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:CorporateDebtSecuritiesMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:RepurchaseAgreementsMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:CorporateDebtSecuritiesMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:MoneyMarketFundsMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:MoneyMarketFundsMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:MoneyMarketFundsMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:MoneyMarketFundsMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:RepurchaseAgreementsMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:CorporateDebtSecuritiesMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:BankTimeDepositsMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:BankTimeDepositsMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:BankTimeDepositsMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:CarryingReportedAmountFairValueDisclosureMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:CarryingReportedAmountFairValueDisclosureMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:FairValueInputsLevel2Member us-gaap:EstimateOfFairValueFairValueDisclosureMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:FairValueInputsLevel2Member us-gaap:EstimateOfFairValueFairValueDisclosureMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:RepurchaseAgreementsMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:FairValueMeasurementsRecurringMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:RepurchaseAgreementsMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:BankTimeDepositsMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:MoneyMarketFundsMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:MoneyMarketFundsMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:CorporateDebtSecuritiesMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:CorporateDebtSecuritiesMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:BankTimeDepositsMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:RepurchaseAgreementsMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:BankTimeDepositsMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:CorporateDebtSecuritiesMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:BankTimeDepositsMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:MoneyMarketFundsMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:MoneyMarketFundsMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:CorporateDebtSecuritiesMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:RepurchaseAgreementsMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:FairValueInputsLevel1Member us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:FairValueInputsLevel2Member us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember aal:MutualFundAALClassMember us-gaap:FairValueInputsLevel1Member us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:MoneyMarketFundsMember us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember aal:MutualFundAALClassMember us-gaap:FairValueInputsLevel2Member us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:MoneyMarketFundsMember us-gaap:FairValueInputsLevel1Member us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:MoneyMarketFundsMember us-gaap:FairValueInputsLevel2Member us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:FairValueInputsLevel3Member us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember aal:MutualFundAALClassMember us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember aal:MutualFundAALClassMember us-gaap:FairValueInputsLevel3Member us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:MoneyMarketFundsMember us-gaap:FairValueInputsLevel3Member us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember aal:CommonCollectiveTrustand1032InvestmentTrustsMember us-gaap:FairValueMeasuredAtNetAssetValuePerShareMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:USGovernmentDebtSecuritiesMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:USGovernmentDebtSecuritiesMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:DefinedBenefitPlanCommonCollectiveTrustMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:DefinedBenefitPlanEquitySecuritiesMidCapMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember aal:OtherPlanAssetCategoriesLiabilitiesNetMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:USStatesAndPoliticalSubdivisionsMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:PrivateEquityFundsMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:CorporateDebtSecuritiesMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:PrivateEquityFundsMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:DefinedBenefitPlanCashAndCashEquivalentsMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:DefinedBenefitPlanEquitySecuritiesLargeCapMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:DefinedBenefitPlanEquitySecuritiesMidCapMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember aal:DueToFromBrokersForSaleOfSecuritiesMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:CorporateDebtSecuritiesMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:DefinedBenefitPlanCommonCollectiveTrustMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember aal:DueToFromBrokersForSaleOfSecuritiesMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:DefinedBenefitPlanCashAndCashEquivalentsMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:DefinedBenefitPlanEquitySecuritiesLargeCapMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember aal:DividendAndInterestReceivableMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember aal:OtherPlanAssetCategoriesLiabilitiesNetMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember aal:DividendAndInterestReceivableMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:DefinedBenefitPlanEquitySecuritiesSmallCapMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember aal:InsuranceGroupAnnuityContractsMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:DefinedBenefitPlanEquitySecuritiesNonUsMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:DefinedBenefitPlanCashAndCashEquivalentsMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember aal:DividendAndInterestReceivableMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember aal:InsuranceGroupAnnuityContractsMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:USStatesAndPoliticalSubdivisionsMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:USStatesAndPoliticalSubdivisionsMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:USStatesAndPoliticalSubdivisionsMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:DefinedBenefitPlanEquitySecuritiesMidCapMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:PrivateEquityFundsMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:PrivateEquityFundsMember us-gaap:FairValueMeasuredAtNetAssetValuePerShareMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:DefinedBenefitPlanEquitySecuritiesNonUsMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:DefinedBenefitPlanCashAndCashEquivalentsMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:DefinedBenefitPlanEquitySecuritiesNonUsMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember aal:OtherPlanAssetCategoriesLiabilitiesNetMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:DefinedBenefitPlanEquitySecuritiesNonUsMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:DefinedBenefitPlanEquitySecuritiesSmallCapMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:DefinedBenefitPlanCommonCollectiveTrustMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:DefinedBenefitPlanEquitySecuritiesSmallCapMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember aal:InsuranceGroupAnnuityContractsMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:CorporateDebtSecuritiesMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember aal:OtherPlanAssetCategoriesLiabilitiesNetMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:PrivateEquityFundsMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:DefinedBenefitPlanEquitySecuritiesLargeCapMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember aal:DueToFromBrokersForSaleOfSecuritiesMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:USGovernmentDebtSecuritiesMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:DefinedBenefitPlanCommonCollectiveTrustMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember aal:DueToFromBrokersForSaleOfSecuritiesMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:USGovernmentDebtSecuritiesMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:DefinedBenefitPlanEquitySecuritiesSmallCapMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:DefinedBenefitPlanEquitySecuritiesMidCapMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:CorporateDebtSecuritiesMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember aal:InsuranceGroupAnnuityContractsMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:DefinedBenefitPlanEquitySecuritiesLargeCapMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember aal:DividendAndInterestReceivableMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:PensionPlansDefinedBenefitMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2018-01-01 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:PensionPlansDefinedBenefitMember 2018-01-01 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:PensionPlansDefinedBenefitMember 2017-12-31 0000006201 srt:SubsidiariesMember us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2017-12-31 0000006201 srt:SubsidiariesMember us-gaap:PensionPlansDefinedBenefitMember 2017-01-01 2017-12-31 0000006201 srt:SubsidiariesMember us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2017-01-01 2017-12-31 0000006201 srt:SubsidiariesMember us-gaap:PrivateEquityFundsMember us-gaap:FairValueInputsLevel3Member 2018-01-01 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:PrivateEquityFundsMember us-gaap:FairValueInputsLevel3Member 2018-12-31 0000006201 srt:SubsidiariesMember aal:InsuranceGroupAnnuityContractsMember us-gaap:FairValueInputsLevel3Member 2018-12-31 0000006201 srt:SubsidiariesMember aal:InsuranceGroupAnnuityContractsMember us-gaap:FairValueInputsLevel3Member 2018-01-01 2018-12-31 0000006201 srt:SubsidiariesMember aal:InsuranceGroupAnnuityContractsMember us-gaap:FairValueInputsLevel3Member 2017-12-31 0000006201 srt:SubsidiariesMember us-gaap:PrivateEquityFundsMember us-gaap:FairValueInputsLevel3Member 2017-12-31 0000006201 srt:SubsidiariesMember us-gaap:PrivateEquityFundsMember us-gaap:FairValueInputsLevel3Member 2019-12-31 0000006201 srt:SubsidiariesMember aal:InsuranceGroupAnnuityContractsMember us-gaap:FairValueInputsLevel3Member 2019-12-31 0000006201 srt:SubsidiariesMember aal:InsuranceGroupAnnuityContractsMember us-gaap:FairValueInputsLevel3Member 2019-01-01 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:PrivateEquityFundsMember us-gaap:FairValueInputsLevel3Member 2019-01-01 2019-12-31 0000006201 srt:SubsidiariesMember aal:CommonCollectiveTrustand1032InvestmentTrustsMember aal:CommonOrCollectiveInterestTrustShortTermSecuritiesMember 2019-12-31 0000006201 srt:SubsidiariesMember aal:DefinedBenefitPlanEquitySecuritiesIrelandMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:PrivateEquityFundsMember aal:EuropeanBuyoutOpportunitiesMember 2018-12-31 0000006201 srt:SubsidiariesMember aal:DefinedBenefitPlanEquitySecuritiesJapanMember 2019-12-31 0000006201 srt:SubsidiariesMember aal:DefinedBenefitPlanEquitySecuritiesNonUSIndividuallyImmaterialMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:CorporateDebtSecuritiesMember aal:InternationalCompaniesMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:CorporateDebtSecuritiesMember aal:EmergingMarketCompaniesMember 2019-12-31 0000006201 srt:SubsidiariesMember aal:InternationalAssociationOfMachinistsAndAerospaceWorkersNationalPensionFundMember us-gaap:PensionPlansDefinedBenefitMember 2018-01-01 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:PrivateEquityFundsMember 2018-01-01 2018-12-31 0000006201 srt:SubsidiariesMember aal:InternationalAssociationOfMachinistsAndAerospaceWorkersNationalPensionFundMember us-gaap:PensionPlansDefinedBenefitMember 2017-01-01 2017-12-31 0000006201 srt:SubsidiariesMember us-gaap:MutualFundMember aal:InternationalCompaniesMember 2019-12-31 0000006201 srt:SubsidiariesMember srt:MaximumMember us-gaap:PrivateEquityFundsMember 2019-01-01 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:CorporateDebtSecuritiesMember aal:CorporateDebtWithStandardAndPoorsRatingAOrHigherMember 2018-12-31 0000006201 srt:SubsidiariesMember aal:DefinedBenefitPlanEquitySecuritiesSouthKoreaMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:CorporateDebtSecuritiesMember aal:USCompaniesMember 2018-12-31 0000006201 srt:SubsidiariesMember srt:MaximumMember us-gaap:PrivateEquityFundsMember 2018-01-01 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:CorporateDebtSecuritiesMember aal:USCompaniesMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:CorporateDebtSecuritiesMember aal:CorporateDebtWithStandardAndPoorsRatingLowerThanAMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:USGovernmentDebtSecuritiesMember aal:EmergingMarketGovernmentSecuritiesMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:CorporateDebtSecuritiesMember aal:CorporateDebtWithStandardAndPoorsRatingAOrHigherMember 2019-12-31 0000006201 srt:SubsidiariesMember aal:DefinedBenefitPlanEquitySecuritiesNonUSEmergingMarketsMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:USGovernmentDebtSecuritiesMember aal:OtherInternationalGovernmentSecuritiesMember 2018-12-31 0000006201 srt:SubsidiariesMember aal:InternationalAssociationOfMachinistsAndAerospaceWorkersNationalPensionFundMember us-gaap:PensionPlansDefinedBenefitMember 2019-03-29 0000006201 srt:SubsidiariesMember us-gaap:MutualFundMember aal:InternationalCompaniesMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:CorporateDebtSecuritiesMember aal:EmergingMarketCompaniesMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:USGovernmentDebtSecuritiesMember aal:DomesticGovernmentSecuritiesMember 2018-12-31 0000006201 srt:SubsidiariesMember aal:CommonCollectiveTrustand1032InvestmentTrustsMember aal:CommonOrCollectiveTrustSecuritiesOfSmallerCompaniesOutsideUSMember 2019-12-31 0000006201 srt:SubsidiariesMember aal:DefinedBenefitPlanEquitySecuritiesSwitzerlandMember 2018-12-31 0000006201 srt:SubsidiariesMember aal:DefinedBenefitPlanEquitySecuritiesNonUSIndividuallyImmaterialMember 2018-12-31 0000006201 srt:SubsidiariesMember aal:DefinedBenefitPlanEquitySecuritiesJapanMember 2018-12-31 0000006201 srt:SubsidiariesMember 2012-01-01 2012-12-31 0000006201 srt:SubsidiariesMember us-gaap:PrivateEquityFundsMember aal:USBuyoutOpportunitiesMember 2018-12-31 0000006201 srt:SubsidiariesMember aal:CommonCollectiveTrustand1032InvestmentTrustsMember aal:CommonOrCollectiveTrustSecuritiesOfLargerCompaniesWithinUSMember 2019-12-31 0000006201 srt:SubsidiariesMember aal:DefinedBenefitPlanEquitySecuritiesCanadaMember 2019-12-31 0000006201 srt:SubsidiariesMember aal:DefinedBenefitPlanEquitySecuritiesIrelandMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:DeferredProfitSharingMember 2019-01-01 2019-12-31 0000006201 srt:SubsidiariesMember aal:InternationalAssociationOfMachinistsAndAerospaceWorkersNationalPensionFundMember us-gaap:PensionPlansDefinedBenefitMember 2019-06-14 2019-06-14 0000006201 srt:SubsidiariesMember us-gaap:CorporateDebtSecuritiesMember aal:CorporateDebtWithStandardAndPoorsRatingLowerThanAMember 2019-12-31 0000006201 srt:SubsidiariesMember aal:DefinedBenefitPlanEquitySecuritiesFranceMember 2019-12-31 0000006201 srt:SubsidiariesMember aal:CommonCollectiveTrustand1032InvestmentTrustsMember aal:CommonOrCollectiveInterestTrustShortTermSecuritiesMember 2018-12-31 0000006201 srt:SubsidiariesMember aal:InternationalAssociationOfMachinistsAndAerospaceWorkersNationalPensionFundMember us-gaap:PensionPlansDefinedBenefitMember 2019-01-01 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:USGovernmentDebtSecuritiesMember aal:EmergingMarketGovernmentSecuritiesMember 2018-12-31 0000006201 srt:SubsidiariesMember aal:DefinedBenefitPlanEquitySecuritiesUnitedKingdomMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:USGovernmentDebtSecuritiesMember aal:OtherInternationalGovernmentSecuritiesMember 2019-12-31 0000006201 srt:SubsidiariesMember aal:DefinedBenefitPlanEquitySecuritiesUnitedKingdomMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:PrivateEquityFundsMember 2019-01-01 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:USGovernmentDebtSecuritiesMember aal:DomesticGovernmentSecuritiesMember 2019-12-31 0000006201 srt:SubsidiariesMember aal:CommonCollectiveTrustand1032InvestmentTrustsMember aal:EmergingMarket10312InvestmentTrustMember 2019-12-31 0000006201 srt:SubsidiariesMember aal:CommonCollectiveTrustand1032InvestmentTrustsMember aal:CanadianSegregatedBalancedValueMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:CorporateDebtSecuritiesMember aal:InternationalCompaniesMember 2019-12-31 0000006201 srt:SubsidiariesMember aal:CommonCollectiveTrustand1032InvestmentTrustsMember aal:EmergingMarket10312InvestmentTrustMember 2018-12-31 0000006201 srt:SubsidiariesMember aal:DefinedBenefitPlanEquitySecuritiesNonUSEmergingMarketsMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:DeferredProfitSharingMember 2019-12-31 0000006201 srt:SubsidiariesMember aal:DefinedBenefitPlanEquitySecuritiesFranceMember 2018-12-31 0000006201 srt:SubsidiariesMember aal:CommonCollectiveTrustand1032InvestmentTrustsMember aal:CanadianSegregatedBalancedValueMember 2018-12-31 0000006201 srt:SubsidiariesMember aal:CommonCollectiveTrustand1032InvestmentTrustsMember aal:CommonOrCollectiveTrustMember 2018-12-31 0000006201 srt:SubsidiariesMember aal:DefinedBenefitPlanEquitySecuritiesSwitzerlandMember 2019-12-31 0000006201 srt:SubsidiariesMember aal:DueToFromBrokersForSaleOfSecuritiesMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:PrivateEquityFundsMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:DefinedBenefitPlanEquitySecuritiesSmallCapMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:USStatesAndPoliticalSubdivisionsMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:CorporateDebtSecuritiesMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:MortgageBackedSecuritiesMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:DefinedBenefitPlanEquitySecuritiesNonUsMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:DefinedBenefitPlanCommonCollectiveTrustMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:DefinedBenefitPlanEquitySecuritiesMidCapMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:DefinedBenefitPlanEquitySecuritiesLargeCapMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:DefinedBenefitPlanCashAndCashEquivalentsMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:CorporateDebtSecuritiesMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:USGovernmentDebtSecuritiesMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember aal:DueToFromBrokersForSaleOfSecuritiesMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:USStatesAndPoliticalSubdivisionsMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember aal:DividendAndInterestReceivableMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:DefinedBenefitPlanCommonCollectiveTrustMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:USGovernmentDebtSecuritiesMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember aal:CommonCollectiveTrustand1032InvestmentTrustsMember us-gaap:FairValueMeasuredAtNetAssetValuePerShareMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:DefinedBenefitPlanEquitySecuritiesLargeCapMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:DefinedBenefitPlanCashAndCashEquivalentsMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:USGovernmentDebtSecuritiesMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:PrivateEquityFundsMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:DefinedBenefitPlanEquitySecuritiesMidCapMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:DefinedBenefitPlanCashAndCashEquivalentsMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember aal:InsuranceGroupAnnuityContractsMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:CorporateDebtSecuritiesMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:DefinedBenefitPlanEquitySecuritiesMidCapMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:PrivateEquityFundsMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:MortgageBackedSecuritiesMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:DefinedBenefitPlanCommonCollectiveTrustMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember aal:DividendAndInterestReceivableMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember aal:DueToFromBrokersForSaleOfSecuritiesMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:DefinedBenefitPlanEquitySecuritiesSmallCapMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:USStatesAndPoliticalSubdivisionsMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:MortgageBackedSecuritiesMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:DefinedBenefitPlanEquitySecuritiesSmallCapMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:CorporateDebtSecuritiesMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:USStatesAndPoliticalSubdivisionsMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:MortgageBackedSecuritiesMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:DefinedBenefitPlanCashAndCashEquivalentsMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember aal:DueToFromBrokersForSaleOfSecuritiesMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember aal:InsuranceGroupAnnuityContractsMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:DefinedBenefitPlanEquitySecuritiesLargeCapMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember aal:DividendAndInterestReceivableMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:DefinedBenefitPlanEquitySecuritiesSmallCapMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:DefinedBenefitPlanEquitySecuritiesNonUsMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:DefinedBenefitPlanEquitySecuritiesLargeCapMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember aal:InsuranceGroupAnnuityContractsMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:DefinedBenefitPlanEquitySecuritiesNonUsMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:DefinedBenefitPlanCommonCollectiveTrustMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:DefinedBenefitPlanEquitySecuritiesMidCapMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember aal:DividendAndInterestReceivableMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember aal:InsuranceGroupAnnuityContractsMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:PrivateEquityFundsMember us-gaap:FairValueMeasuredAtNetAssetValuePerShareMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:DefinedBenefitPlanEquitySecuritiesNonUsMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:PrivateEquityFundsMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:USGovernmentDebtSecuritiesMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PensionPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember aal:MutualFundAALClassMember us-gaap:FairValueInputsLevel2Member us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:MoneyMarketFundsMember us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:MoneyMarketFundsMember us-gaap:FairValueInputsLevel3Member us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember aal:MutualFundAALClassMember us-gaap:FairValueInputsLevel3Member us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember aal:MutualFundAALClassMember us-gaap:FairValueInputsLevel1Member us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember aal:MutualFundAALClassMember us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:FairValueInputsLevel3Member us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:FairValueInputsLevel2Member us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:FairValueInputsLevel1Member us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:MoneyMarketFundsMember us-gaap:FairValueInputsLevel1Member us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:MoneyMarketFundsMember us-gaap:FairValueInputsLevel2Member us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2019-12-31 0000006201 srt:SubsidiariesMember srt:MinimumMember us-gaap:PrivateEquityFundsMember 2018-01-01 2018-12-31 0000006201 srt:SubsidiariesMember srt:MinimumMember us-gaap:PrivateEquityFundsMember 2019-01-01 2019-12-31 0000006201 srt:SubsidiariesMember srt:MaximumMember aal:PrivateFixedIncomeMember 2019-12-31 0000006201 srt:SubsidiariesMember srt:MinimumMember us-gaap:DefinedBenefitPlanEquitySecuritiesNonUsMember 2019-12-31 0000006201 srt:SubsidiariesMember srt:MinimumMember aal:AlternativeInvestmentMember 2019-12-31 0000006201 srt:SubsidiariesMember srt:MinimumMember aal:FixedIncomeUSLongDurationMember 2019-12-31 0000006201 srt:SubsidiariesMember srt:MinimumMember us-gaap:DefinedBenefitPlanCashAndCashEquivalentsMember 2019-12-31 0000006201 srt:SubsidiariesMember srt:MaximumMember us-gaap:DefinedBenefitPlanEquitySecuritiesUsMidCapMember 2019-12-31 0000006201 srt:SubsidiariesMember srt:MaximumMember aal:FixedIncomeEmergingMarketsMember 2019-12-31 0000006201 srt:SubsidiariesMember srt:MinimumMember aal:FixedIncomeEmergingMarketsMember 2019-12-31 0000006201 srt:SubsidiariesMember srt:MinimumMember aal:EmergingMarketsMember 2019-12-31 0000006201 srt:SubsidiariesMember srt:MaximumMember aal:AlternativeInvestmentMember 2019-12-31 0000006201 srt:SubsidiariesMember srt:MaximumMember us-gaap:DefinedBenefitPlanCashAndCashEquivalentsMember 2019-12-31 0000006201 srt:SubsidiariesMember srt:MaximumMember us-gaap:DefinedBenefitPlanEquitySecuritiesMember 2019-12-31 0000006201 srt:SubsidiariesMember srt:MinimumMember us-gaap:DefinedBenefitPlanEquitySecuritiesMember 2019-12-31 0000006201 srt:SubsidiariesMember srt:MaximumMember us-gaap:DefinedBenefitPlanEquitySecuritiesUsLargeCapMember 2019-12-31 0000006201 srt:SubsidiariesMember srt:MaximumMember us-gaap:DefinedBenefitPlanEquitySecuritiesNonUsMember 2019-12-31 0000006201 srt:SubsidiariesMember srt:MaximumMember us-gaap:DefinedBenefitPlanDebtSecurityMember 2019-12-31 0000006201 srt:SubsidiariesMember srt:MaximumMember aal:FixedIncomeUSLongDurationMember 2019-12-31 0000006201 srt:SubsidiariesMember srt:MaximumMember aal:EmergingMarketsMember 2019-12-31 0000006201 srt:SubsidiariesMember srt:MinimumMember aal:DefinedBenefitPlanOtherInvestmentMember 2019-12-31 0000006201 srt:SubsidiariesMember srt:MinimumMember us-gaap:DefinedBenefitPlanDebtSecurityMember 2019-12-31 0000006201 srt:SubsidiariesMember srt:MinimumMember aal:PrivateFixedIncomeMember 2019-12-31 0000006201 srt:SubsidiariesMember srt:MinimumMember us-gaap:DefinedBenefitPlanEquitySecuritiesUsLargeCapMember 2019-12-31 0000006201 srt:SubsidiariesMember srt:MaximumMember aal:DefinedBenefitPlanOtherInvestmentMember 2019-12-31 0000006201 srt:SubsidiariesMember srt:MinimumMember us-gaap:DefinedBenefitPlanEquitySecuritiesUsMidCapMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember 2019-01-01 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember 2019-01-01 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember 2018-01-01 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember 2018-01-01 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember 2017-12-31 0000006201 srt:SubsidiariesMember us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember 2017-12-31 0000006201 srt:SubsidiariesMember us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetUnamortizedGainLossMember 2018-01-01 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetUnamortizedGainLossMember 2019-01-01 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceCostCreditMember 2018-01-01 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceCostCreditMember 2019-01-01 2019-12-31 0000006201 srt:SubsidiariesMember aal:PurchaseAndLeaseCommitmentsMember 2019-12-31 0000006201 srt:SubsidiariesMember 2015-06-01 2015-06-30 0000006201 srt:SubsidiariesMember 2018-06-15 2018-06-15 0000006201 srt:SubsidiariesMember aal:EetcLeveragedLeaseFinancingsMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:RestrictedStockUnitsRSUMember 2019-01-01 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:RestrictedStockUnitsRSUMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:RestrictedStockUnitsRSUMember 2018-01-01 2018-12-31 0000006201 srt:SubsidiariesMember aal:AagIncentiveAwardPlan2013Member 2013-12-31 0000006201 srt:SubsidiariesMember us-gaap:RestrictedStockUnitsRSUMember 2017-01-01 2017-12-31 0000006201 srt:SubsidiariesMember us-gaap:RestrictedStockUnitsRSUMember 2017-12-31 0000006201 srt:SubsidiariesMember us-gaap:RestrictedStockUnitsRSUMember 2016-12-31 0000006201 srt:SubsidiariesMember us-gaap:RestrictedStockUnitsRSUMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:InventoryValuationReserveMember 2017-01-01 2017-12-31 0000006201 srt:SubsidiariesMember us-gaap:InventoryValuationReserveMember 2016-12-31 0000006201 srt:SubsidiariesMember us-gaap:InventoryValuationReserveMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:InventoryValuationReserveMember 2019-01-01 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:AllowanceForCreditLossMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:AllowanceForCreditLossMember 2019-01-01 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:InventoryValuationReserveMember 2018-01-01 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:InventoryValuationReserveMember 2017-12-31 0000006201 srt:SubsidiariesMember us-gaap:AllowanceForCreditLossMember 2017-12-31 0000006201 srt:SubsidiariesMember us-gaap:AllowanceForCreditLossMember 2018-01-01 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:AllowanceForCreditLossMember 2017-01-01 2017-12-31 0000006201 srt:SubsidiariesMember us-gaap:AllowanceForCreditLossMember 2016-12-31 0000006201 srt:SubsidiariesMember us-gaap:AllowanceForCreditLossMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:InventoryValuationReserveMember 2019-12-31 0000006201 srt:SubsidiariesMember 2019-10-01 2019-12-31 0000006201 srt:SubsidiariesMember 2018-07-01 2018-09-30 0000006201 srt:SubsidiariesMember 2018-01-01 2018-03-31 0000006201 srt:SubsidiariesMember 2019-07-01 2019-09-30 0000006201 srt:SubsidiariesMember 2019-01-01 2019-03-31 0000006201 srt:SubsidiariesMember 2018-10-01 2018-12-31 0000006201 srt:SubsidiariesMember 2018-04-01 2018-06-30 0000006201 srt:SubsidiariesMember 2019-04-01 2019-06-30 0000006201 srt:SubsidiariesMember srt:ParentCompanyMember 2019-12-31 0000006201 srt:SubsidiariesMember srt:ParentCompanyMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:SubsidiaryOfCommonParentMember 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:SubsidiaryOfCommonParentMember 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:RegionalCarrierMember us-gaap:AirlineCapacityPurchaseArrangementsMember us-gaap:SubsidiaryOfCommonParentMember 2019-01-01 2019-12-31 0000006201 srt:SubsidiariesMember us-gaap:RegionalCarrierMember us-gaap:AirlineCapacityPurchaseArrangementsMember us-gaap:SubsidiaryOfCommonParentMember 2017-01-01 2017-12-31 0000006201 srt:SubsidiariesMember us-gaap:RegionalCarrierMember us-gaap:AirlineCapacityPurchaseArrangementsMember us-gaap:SubsidiaryOfCommonParentMember 2018-01-01 2018-12-31 0000006201 srt:SubsidiariesMember us-gaap:RevolvingCreditFacilityMember aal:CreditFacility2014Member us-gaap:SecuredDebtMember us-gaap:SubsequentEventMember us-gaap:LondonInterbankOfferedRateLIBORMember 2020-01-01 2020-01-31 0000006201 srt:SubsidiariesMember us-gaap:RevolvingCreditFacilityMember aal:CreditFacility2014Member us-gaap:SecuredDebtMember us-gaap:SubsequentEventMember us-gaap:LondonInterbankOfferedRateLIBORMember 2020-01-31 0000006201 srt:SubsidiariesMember us-gaap:RevolvingCreditFacilityMember aal:CreditFacility2014Member us-gaap:SecuredDebtMember us-gaap:SubsequentEventMember us-gaap:BaseRateMember