<?xml version="1.0" encoding="utf-8"?>
<xbrl
  xml:lang="en-US"
  xmlns="http://www.xbrl.org/2003/instance"
  xmlns:dei="http://xbrl.sec.gov/dei/2021q4"
  xmlns:link="http://www.xbrl.org/2003/linkbase"
  xmlns:xlink="http://www.w3.org/1999/xlink">
    <link:schemaRef xlink:href="jblu-20220426.xsd" xlink:type="simple"/>
    <context id="ia005d1533c4045d2ab429b940a81c5a8_D20220426-20220426">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001158463</identifier>
        </entity>
        <period>
            <startDate>2022-04-26</startDate>
            <endDate>2022-04-26</endDate>
        </period>
    </context>
    <dei:AmendmentFlag
      contextRef="ia005d1533c4045d2ab429b940a81c5a8_D20220426-20220426"
      id="id3VybDovL2RvY3MudjEvZG9jOmRmYzAxNDlhMjhjOTQzZTlhOTUwODU1ODMyMmU0NTY2L3NlYzpkZmMwMTQ5YTI4Yzk0M2U5YTk1MDg1NTgzMjJlNDU2Nl80L2ZyYWc6Yzk3OTY5ZTYyYjU2NDk4ZDljNTQ0MzFmYTljZTQ4NDcvdGFibGU6MTE1ZjMwNjJhNjRlNGMxZGI4ZWJlZTI1YWMyZTM5Y2UvdGFibGVyYW5nZToxMTVmMzA2MmE2NGU0YzFkYjhlYmVlMjVhYzJlMzljZV8xLTEtMS0xLTQ4NTMy_42693edd-1b45-4abf-b8d3-68703f807e74">false</dei:AmendmentFlag>
    <dei:EntityCentralIndexKey
      contextRef="ia005d1533c4045d2ab429b940a81c5a8_D20220426-20220426"
      id="id3VybDovL2RvY3MudjEvZG9jOmRmYzAxNDlhMjhjOTQzZTlhOTUwODU1ODMyMmU0NTY2L3NlYzpkZmMwMTQ5YTI4Yzk0M2U5YTk1MDg1NTgzMjJlNDU2Nl80L2ZyYWc6Yzk3OTY5ZTYyYjU2NDk4ZDljNTQ0MzFmYTljZTQ4NDcvdGFibGU6MTE1ZjMwNjJhNjRlNGMxZGI4ZWJlZTI1YWMyZTM5Y2UvdGFibGVyYW5nZToxMTVmMzA2MmE2NGU0YzFkYjhlYmVlMjVhYzJlMzljZV8yLTEtMS0xLTQ4NTMy_d32f40a7-f4f8-4c95-81b9-3ca48251baf2">0001158463</dei:EntityCentralIndexKey>
    <dei:DocumentType
      contextRef="ia005d1533c4045d2ab429b940a81c5a8_D20220426-20220426"
      id="id3VybDovL2RvY3MudjEvZG9jOmRmYzAxNDlhMjhjOTQzZTlhOTUwODU1ODMyMmU0NTY2L3NlYzpkZmMwMTQ5YTI4Yzk0M2U5YTk1MDg1NTgzMjJlNDU2Nl8xL2ZyYWc6ZDY5ZjRkMDRkNTVlNDExZjkzZjFmMDdiNzdjMjkxNjUvdGV4dHJlZ2lvbjpkNjlmNGQwNGQ1NWU0MTFmOTNmMWYwN2I3N2MyOTE2NV8xNTkz_db5c3ce0-6bca-4dc2-bbf7-10a8988bb9ee">8-K</dei:DocumentType>
    <dei:DocumentPeriodEndDate
      contextRef="ia005d1533c4045d2ab429b940a81c5a8_D20220426-20220426"
      id="id3VybDovL2RvY3MudjEvZG9jOmRmYzAxNDlhMjhjOTQzZTlhOTUwODU1ODMyMmU0NTY2L3NlYzpkZmMwMTQ5YTI4Yzk0M2U5YTk1MDg1NTgzMjJlNDU2Nl8xL2ZyYWc6ZDY5ZjRkMDRkNTVlNDExZjkzZjFmMDdiNzdjMjkxNjUvdGV4dHJlZ2lvbjpkNjlmNGQwNGQ1NWU0MTFmOTNmMWYwN2I3N2MyOTE2NV8yMjY_552b0f21-cf35-43f7-99b9-59b004cbbd1e">2022-04-26</dei:DocumentPeriodEndDate>
    <dei:EntityRegistrantName
      contextRef="ia005d1533c4045d2ab429b940a81c5a8_D20220426-20220426"
      id="id3VybDovL2RvY3MudjEvZG9jOmRmYzAxNDlhMjhjOTQzZTlhOTUwODU1ODMyMmU0NTY2L3NlYzpkZmMwMTQ5YTI4Yzk0M2U5YTk1MDg1NTgzMjJlNDU2Nl8xL2ZyYWc6ZDY5ZjRkMDRkNTVlNDExZjkzZjFmMDdiNzdjMjkxNjUvdGV4dHJlZ2lvbjpkNjlmNGQwNGQ1NWU0MTFmOTNmMWYwN2I3N2MyOTE2NV8xNTk0_4760e133-0878-4895-b401-ca2c82611ed4">JETBLUE AIRWAYS CORP</dei:EntityRegistrantName>
    <dei:EntityIncorporationStateCountryCode
      contextRef="ia005d1533c4045d2ab429b940a81c5a8_D20220426-20220426"
      id="id3VybDovL2RvY3MudjEvZG9jOmRmYzAxNDlhMjhjOTQzZTlhOTUwODU1ODMyMmU0NTY2L3NlYzpkZmMwMTQ5YTI4Yzk0M2U5YTk1MDg1NTgzMjJlNDU2Nl8xL2ZyYWc6ZDY5ZjRkMDRkNTVlNDExZjkzZjFmMDdiNzdjMjkxNjUvdGFibGU6Njk4OWY5OWM3ZDkyNDRiODg1MTc5NWRlNzAzM2Y1ZWIvdGFibGVyYW5nZTo2OTg5Zjk5YzdkOTI0NGI4ODUxNzk1ZGU3MDMzZjVlYl8wLTAtMS0xLTQ4NTMy_b6c7ef74-5e43-49b5-b60c-7491a7bd8256">DE</dei:EntityIncorporationStateCountryCode>
    <dei:EntityFileNumber
      contextRef="ia005d1533c4045d2ab429b940a81c5a8_D20220426-20220426"
      id="id3VybDovL2RvY3MudjEvZG9jOmRmYzAxNDlhMjhjOTQzZTlhOTUwODU1ODMyMmU0NTY2L3NlYzpkZmMwMTQ5YTI4Yzk0M2U5YTk1MDg1NTgzMjJlNDU2Nl8xL2ZyYWc6ZDY5ZjRkMDRkNTVlNDExZjkzZjFmMDdiNzdjMjkxNjUvdGFibGU6Njk4OWY5OWM3ZDkyNDRiODg1MTc5NWRlNzAzM2Y1ZWIvdGFibGVyYW5nZTo2OTg5Zjk5YzdkOTI0NGI4ODUxNzk1ZGU3MDMzZjVlYl8wLTEtMS0xLTQ4NTMy_c7860f61-9f8b-4a08-8b63-a1c91245ca9a">000-49728</dei:EntityFileNumber>
    <dei:EntityTaxIdentificationNumber
      contextRef="ia005d1533c4045d2ab429b940a81c5a8_D20220426-20220426"
      id="id3VybDovL2RvY3MudjEvZG9jOmRmYzAxNDlhMjhjOTQzZTlhOTUwODU1ODMyMmU0NTY2L3NlYzpkZmMwMTQ5YTI4Yzk0M2U5YTk1MDg1NTgzMjJlNDU2Nl8xL2ZyYWc6ZDY5ZjRkMDRkNTVlNDExZjkzZjFmMDdiNzdjMjkxNjUvdGFibGU6Njk4OWY5OWM3ZDkyNDRiODg1MTc5NWRlNzAzM2Y1ZWIvdGFibGVyYW5nZTo2OTg5Zjk5YzdkOTI0NGI4ODUxNzk1ZGU3MDMzZjVlYl8wLTMtMS0xLTQ4NTMy_4459b921-da05-4773-9c08-f5e5f468a785">87-0617894</dei:EntityTaxIdentificationNumber>
    <dei:EntityAddressAddressLine1
      contextRef="ia005d1533c4045d2ab429b940a81c5a8_D20220426-20220426"
      id="id3VybDovL2RvY3MudjEvZG9jOmRmYzAxNDlhMjhjOTQzZTlhOTUwODU1ODMyMmU0NTY2L3NlYzpkZmMwMTQ5YTI4Yzk0M2U5YTk1MDg1NTgzMjJlNDU2Nl8xL2ZyYWc6ZDY5ZjRkMDRkNTVlNDExZjkzZjFmMDdiNzdjMjkxNjUvdGFibGU6Njk4OWY5OWM3ZDkyNDRiODg1MTc5NWRlNzAzM2Y1ZWIvdGFibGVyYW5nZTo2OTg5Zjk5YzdkOTI0NGI4ODUxNzk1ZGU3MDMzZjVlYl8zLTAtMS0xLTQ4NTMy_947b525e-4e4c-4e0e-82e8-f85e8fa89c85">27-01 Queens Plaza North</dei:EntityAddressAddressLine1>
    <dei:EntityAddressCityOrTown
      contextRef="ia005d1533c4045d2ab429b940a81c5a8_D20220426-20220426"
      id="id3VybDovL2RvY3MudjEvZG9jOmRmYzAxNDlhMjhjOTQzZTlhOTUwODU1ODMyMmU0NTY2L3NlYzpkZmMwMTQ5YTI4Yzk0M2U5YTk1MDg1NTgzMjJlNDU2Nl8xL2ZyYWc6ZDY5ZjRkMDRkNTVlNDExZjkzZjFmMDdiNzdjMjkxNjUvdGFibGU6Njk4OWY5OWM3ZDkyNDRiODg1MTc5NWRlNzAzM2Y1ZWIvdGFibGVyYW5nZTo2OTg5Zjk5YzdkOTI0NGI4ODUxNzk1ZGU3MDMzZjVlYl8zLTEtMS0xLTQ4NTMy_73e5667b-e83c-4ea6-9245-0d8af2a3f097">Long Island City</dei:EntityAddressCityOrTown>
    <dei:EntityAddressStateOrProvince
      contextRef="ia005d1533c4045d2ab429b940a81c5a8_D20220426-20220426"
      id="id3VybDovL2RvY3MudjEvZG9jOmRmYzAxNDlhMjhjOTQzZTlhOTUwODU1ODMyMmU0NTY2L3NlYzpkZmMwMTQ5YTI4Yzk0M2U5YTk1MDg1NTgzMjJlNDU2Nl8xL2ZyYWc6ZDY5ZjRkMDRkNTVlNDExZjkzZjFmMDdiNzdjMjkxNjUvdGFibGU6Njk4OWY5OWM3ZDkyNDRiODg1MTc5NWRlNzAzM2Y1ZWIvdGFibGVyYW5nZTo2OTg5Zjk5YzdkOTI0NGI4ODUxNzk1ZGU3MDMzZjVlYl8zLTItMS0xLTQ4NTMy_b12024a3-d5b9-497c-9bfe-d3c9f8e81d61">NY</dei:EntityAddressStateOrProvince>
    <dei:EntityAddressPostalZipCode
      contextRef="ia005d1533c4045d2ab429b940a81c5a8_D20220426-20220426"
      id="id3VybDovL2RvY3MudjEvZG9jOmRmYzAxNDlhMjhjOTQzZTlhOTUwODU1ODMyMmU0NTY2L3NlYzpkZmMwMTQ5YTI4Yzk0M2U5YTk1MDg1NTgzMjJlNDU2Nl8xL2ZyYWc6ZDY5ZjRkMDRkNTVlNDExZjkzZjFmMDdiNzdjMjkxNjUvdGFibGU6Njk4OWY5OWM3ZDkyNDRiODg1MTc5NWRlNzAzM2Y1ZWIvdGFibGVyYW5nZTo2OTg5Zjk5YzdkOTI0NGI4ODUxNzk1ZGU3MDMzZjVlYl8zLTMtMS0xLTQ4NTMy_73ca8518-e8ec-4beb-ae5a-4ee616362811">11101</dei:EntityAddressPostalZipCode>
    <dei:CityAreaCode
      contextRef="ia005d1533c4045d2ab429b940a81c5a8_D20220426-20220426"
      id="id3VybDovL2RvY3MudjEvZG9jOmRmYzAxNDlhMjhjOTQzZTlhOTUwODU1ODMyMmU0NTY2L3NlYzpkZmMwMTQ5YTI4Yzk0M2U5YTk1MDg1NTgzMjJlNDU2Nl8xL2ZyYWc6ZDY5ZjRkMDRkNTVlNDExZjkzZjFmMDdiNzdjMjkxNjUvdGV4dHJlZ2lvbjpkNjlmNGQwNGQ1NWU0MTFmOTNmMWYwN2I3N2MyOTE2NV8xNTk1_2ed4aaf7-73ae-4b4d-b60f-e94ff813083c">718</dei:CityAreaCode>
    <dei:LocalPhoneNumber
      contextRef="ia005d1533c4045d2ab429b940a81c5a8_D20220426-20220426"
      id="id3VybDovL2RvY3MudjEvZG9jOmRmYzAxNDlhMjhjOTQzZTlhOTUwODU1ODMyMmU0NTY2L3NlYzpkZmMwMTQ5YTI4Yzk0M2U5YTk1MDg1NTgzMjJlNDU2Nl8xL2ZyYWc6ZDY5ZjRkMDRkNTVlNDExZjkzZjFmMDdiNzdjMjkxNjUvdGV4dHJlZ2lvbjpkNjlmNGQwNGQ1NWU0MTFmOTNmMWYwN2I3N2MyOTE2NV8xNTk2_3373ce8a-dfbc-4bda-8222-adf977172339">286-7900</dei:LocalPhoneNumber>
    <dei:WrittenCommunications
      contextRef="ia005d1533c4045d2ab429b940a81c5a8_D20220426-20220426"
      id="id3VybDovL2RvY3MudjEvZG9jOmRmYzAxNDlhMjhjOTQzZTlhOTUwODU1ODMyMmU0NTY2L3NlYzpkZmMwMTQ5YTI4Yzk0M2U5YTk1MDg1NTgzMjJlNDU2Nl8xL2ZyYWc6ZDY5ZjRkMDRkNTVlNDExZjkzZjFmMDdiNzdjMjkxNjUvdGV4dHJlZ2lvbjpkNjlmNGQwNGQ1NWU0MTFmOTNmMWYwN2I3N2MyOTE2NV8xNTk3_f906849c-3677-4e7e-8348-510be69db305">false</dei:WrittenCommunications>
    <dei:SolicitingMaterial
      contextRef="ia005d1533c4045d2ab429b940a81c5a8_D20220426-20220426"
      id="id3VybDovL2RvY3MudjEvZG9jOmRmYzAxNDlhMjhjOTQzZTlhOTUwODU1ODMyMmU0NTY2L3NlYzpkZmMwMTQ5YTI4Yzk0M2U5YTk1MDg1NTgzMjJlNDU2Nl8xL2ZyYWc6ZDY5ZjRkMDRkNTVlNDExZjkzZjFmMDdiNzdjMjkxNjUvdGV4dHJlZ2lvbjpkNjlmNGQwNGQ1NWU0MTFmOTNmMWYwN2I3N2MyOTE2NV8xNTk5_3c61f37b-0a3d-44b0-a6e6-7ec1ba6b7567">false</dei:SolicitingMaterial>
    <dei:PreCommencementTenderOffer
      contextRef="ia005d1533c4045d2ab429b940a81c5a8_D20220426-20220426"
      id="id3VybDovL2RvY3MudjEvZG9jOmRmYzAxNDlhMjhjOTQzZTlhOTUwODU1ODMyMmU0NTY2L3NlYzpkZmMwMTQ5YTI4Yzk0M2U5YTk1MDg1NTgzMjJlNDU2Nl8xL2ZyYWc6ZDY5ZjRkMDRkNTVlNDExZjkzZjFmMDdiNzdjMjkxNjUvdGV4dHJlZ2lvbjpkNjlmNGQwNGQ1NWU0MTFmOTNmMWYwN2I3N2MyOTE2NV8xNTk4_b09d72e1-239d-426e-9f04-0f1a0f472844">false</dei:PreCommencementTenderOffer>
    <dei:PreCommencementIssuerTenderOffer
      contextRef="ia005d1533c4045d2ab429b940a81c5a8_D20220426-20220426"
      id="id3VybDovL2RvY3MudjEvZG9jOmRmYzAxNDlhMjhjOTQzZTlhOTUwODU1ODMyMmU0NTY2L3NlYzpkZmMwMTQ5YTI4Yzk0M2U5YTk1MDg1NTgzMjJlNDU2Nl8xL2ZyYWc6ZDY5ZjRkMDRkNTVlNDExZjkzZjFmMDdiNzdjMjkxNjUvdGV4dHJlZ2lvbjpkNjlmNGQwNGQ1NWU0MTFmOTNmMWYwN2I3N2MyOTE2NV8xNjAw_9ab9d7c0-ac2f-428d-abd4-5c59b4e26a70">false</dei:PreCommencementIssuerTenderOffer>
    <dei:Security12bTitle
      contextRef="ia005d1533c4045d2ab429b940a81c5a8_D20220426-20220426"
      id="id3VybDovL2RvY3MudjEvZG9jOmRmYzAxNDlhMjhjOTQzZTlhOTUwODU1ODMyMmU0NTY2L3NlYzpkZmMwMTQ5YTI4Yzk0M2U5YTk1MDg1NTgzMjJlNDU2Nl8xL2ZyYWc6ZDY5ZjRkMDRkNTVlNDExZjkzZjFmMDdiNzdjMjkxNjUvdGFibGU6ZjI1YWMyYmRhNTU1NDFiM2E0ZDZjZWIwMzcyNWNhMjAvdGFibGVyYW5nZTpmMjVhYzJiZGE1NTU0MWIzYTRkNmNlYjAzNzI1Y2EyMF8xLTAtMS0xLTQ4NTMy_212c2dc6-947f-45ed-b629-b2388c697df1">Common Stock, $0.01 par value</dei:Security12bTitle>
    <dei:TradingSymbol
      contextRef="ia005d1533c4045d2ab429b940a81c5a8_D20220426-20220426"
      id="id3VybDovL2RvY3MudjEvZG9jOmRmYzAxNDlhMjhjOTQzZTlhOTUwODU1ODMyMmU0NTY2L3NlYzpkZmMwMTQ5YTI4Yzk0M2U5YTk1MDg1NTgzMjJlNDU2Nl8xL2ZyYWc6ZDY5ZjRkMDRkNTVlNDExZjkzZjFmMDdiNzdjMjkxNjUvdGFibGU6ZjI1YWMyYmRhNTU1NDFiM2E0ZDZjZWIwMzcyNWNhMjAvdGFibGVyYW5nZTpmMjVhYzJiZGE1NTU0MWIzYTRkNmNlYjAzNzI1Y2EyMF8xLTEtMS0xLTQ4NTMy_3a069b3c-d6a0-40c0-8f49-0880fab182e6">JBLU</dei:TradingSymbol>
    <dei:SecurityExchangeName
      contextRef="ia005d1533c4045d2ab429b940a81c5a8_D20220426-20220426"
      id="id3VybDovL2RvY3MudjEvZG9jOmRmYzAxNDlhMjhjOTQzZTlhOTUwODU1ODMyMmU0NTY2L3NlYzpkZmMwMTQ5YTI4Yzk0M2U5YTk1MDg1NTgzMjJlNDU2Nl8xL2ZyYWc6ZDY5ZjRkMDRkNTVlNDExZjkzZjFmMDdiNzdjMjkxNjUvdGFibGU6ZjI1YWMyYmRhNTU1NDFiM2E0ZDZjZWIwMzcyNWNhMjAvdGFibGVyYW5nZTpmMjVhYzJiZGE1NTU0MWIzYTRkNmNlYjAzNzI1Y2EyMF8xLTItMS0xLTQ4NTMy_03224448-8761-4049-948e-7919f9a70235">NASDAQ</dei:SecurityExchangeName>
    <dei:EntityEmergingGrowthCompany
      contextRef="ia005d1533c4045d2ab429b940a81c5a8_D20220426-20220426"
      id="id3VybDovL2RvY3MudjEvZG9jOmRmYzAxNDlhMjhjOTQzZTlhOTUwODU1ODMyMmU0NTY2L3NlYzpkZmMwMTQ5YTI4Yzk0M2U5YTk1MDg1NTgzMjJlNDU2Nl8xL2ZyYWc6ZDY5ZjRkMDRkNTVlNDExZjkzZjFmMDdiNzdjMjkxNjUvdGV4dHJlZ2lvbjpkNjlmNGQwNGQ1NWU0MTFmOTNmMWYwN2I3N2MyOTE2NV8xNTky_40f8ac66-64ee-41d8-a2c1-09ed60ca6aca">false</dei:EntityEmergingGrowthCompany>
</xbrl>
