XML 76 R79.htm IDEA: XBRL DOCUMENT
v3.19.3.a.u2

Special Items (Details) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2019 USD ($) | Mar. 31, 2019 USD ($) | Dec. 31, 2018 USD ($) | Sep. 30, 2018 USD ($) | Jun. 30, 2018 USD ($) | Dec. 31, 2019 USD ($) | Dec. 31, 2018 USD ($) | Dec. 31, 2017 USD ($)
Unusual or Infrequent Item, or Both [Line Items] |  |  |  |  |  |  |  |
Impairment of Long-Lived Assets Held-for-use |  |  |  |  |  | $ 0 | $ 319,000,000 | $ 0
Special Items - E190 Fleet Transition |  |  |  |  |  | 6,000,000 | 362,000,000 | 0
Special Items - Union Contract Costs |  |  |  |  |  | 8,000,000 | 73,000,000 | 0
Special Items | $ 2,000,000 | $ 12,000,000 | $ 4,000,000 | $ 112,000,000 | $ 319,000,000 | $ 14,000,000 | $ 435,000,000 | $ 0
Number of options converted A220 |  |  |  |  |  |  | 10 |

X
- Definition Number of options converted - A220 + References No definition available. + Details
Name: | jblu_NumberofoptionsconvertedA220
Namespace Prefix: | jblu_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Special items during period + References No definition available. + Details
Name: | jblu_SpecialItems
Namespace Prefix: | jblu_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Special items relating to the EMBRAER E190 fleet transition. + References No definition available. + Details
Name: | jblu_SpecialItemsE190FleetTransition
Namespace Prefix: | jblu_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Special Items relating to the ratification of pilots union. + References No definition available. + Details
Name: | jblu_SpecialItemsUnionContractCosts
Namespace Prefix: | jblu_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109226691&loc=d3e2921-110230 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 220 -Section 45 -Paragraph 11 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=114873921&loc=SL114875236-224282 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=109226348&loc=d3e2420-110228 + Details
Name: | us-gaap_ImpairmentOfLongLivedAssetsHeldForUse
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_UnusualOrInfrequentItemLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration