XML 77 R52.htm IDEA: XBRL DOCUMENT v2.4.1.9
Retirement Benefits - Additional Information (Detail) (USD $)
 3 Months Ended
Mar. 31, 2015
Pension Plans, Postretirement and Other Employee Benefits [Line Items]  
Defined benefit plans, estimated future employer contributions until 2019 $ 0aal_DefinedBenefitPlansEstimatedFutureEmployerContributions
American Airlines, Inc. [Member]  
Pension Plans, Postretirement and Other Employee Benefits [Line Items]  
Defined benefit plans, estimated future employer contributions until 2019 $ 0aal_DefinedBenefitPlansEstimatedFutureEmployerContributions
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember