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Debt - Additional Information (Detail) | 1 Months Ended | 4 Months Ended |
--- | --- | --- | ---
May 31, 2018 | May 31, 2018 trust | Sep. 30, 2018 USD ($)
Debt Instrument [Line Items] |  |  |
Number of pass-through trusts created | trust |  | 3 |
Revolving Credit Facility | United Airlines, Inc. | Secured Debt |  |  |
Debt Instrument [Line Items] |  |  |
Available under revolving credit facility | $ |  |  | $ 2,000,000,000
Term Loan |  |  |
Debt Instrument [Line Items] |  |  |
Interest rate reduction | 0.25% |  |

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- Definition Debt Instrument, Interest Rate, Stated Percentage, Decrease + References No definition available. + Details
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- Definition Number Pass-Through Trusts Created + References No definition available. + Details
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- 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
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- Definition Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Details
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- Details
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- Details
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- Details
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