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Debt - Summary of Availability under Revolving Credit Facilities (Details) - Revolving Credit Facility - USD ($) $ in Millions | Oct. 13, 2026 | Oct. 11, 2024 | Dec. 31, 2023
--- | --- | --- | ---
Line of Credit Facility [Line Items] |  |  |
Line of credit facility, remaining borrowing capacity |  |  | $ 2,862
2013 Credit Facilities |  |  |
Line of Credit Facility [Line Items] |  |  |
Line of credit facility, remaining borrowing capacity |  |  | 736
2013 Credit Facilities | Forecast |  |  |
Line of Credit Facility [Line Items] |  |  |
Line of credit facility, maximum borrowing capacity | $ 563 | $ 736 |
2014 Credit Facilities |  |  |
Line of Credit Facility [Line Items] |  |  |
Line of credit facility, remaining borrowing capacity |  |  | 1,631
2014 Credit Facilities | Forecast |  |  |
Line of Credit Facility [Line Items] |  |  |
Line of credit facility, maximum borrowing capacity | 1,200 | 1,600 |
April 2016 Revolving Facility |  |  |
Line of Credit Facility [Line Items] |  |  |
Line of credit facility, remaining borrowing capacity |  |  | 446
April 2016 Revolving Facility | Forecast |  |  |
Line of Credit Facility [Line Items] |  |  |
Line of credit facility, maximum borrowing capacity | 342 | 446 |
Other short-term facility |  |  |
Line of Credit Facility [Line Items] |  |  |
Line of credit facility, remaining borrowing capacity |  |  | 49
American Airlines, Inc. |  |  |
Line of Credit Facility [Line Items] |  |  |
Line of credit facility, remaining borrowing capacity |  |  | 2,862
American Airlines, Inc. | Forecast |  |  |
Line of Credit Facility [Line Items] |  |  |
Line of credit facility, maximum borrowing capacity | 2,200 | 2,800 |
American Airlines, Inc. | 2013 Credit Facilities |  |  |
Line of Credit Facility [Line Items] |  |  |
Line of credit facility, remaining borrowing capacity |  |  | 736
American Airlines, Inc. | 2013 Credit Facilities | Forecast |  |  |
Line of Credit Facility [Line Items] |  |  |
Line of credit facility, maximum borrowing capacity | 563 | 736 |
American Airlines, Inc. | 2014 Credit Facilities |  |  |
Line of Credit Facility [Line Items] |  |  |
Line of credit facility, remaining borrowing capacity |  |  | 1,631
American Airlines, Inc. | 2014 Credit Facilities | Forecast |  |  |
Line of Credit Facility [Line Items] |  |  |
Line of credit facility, maximum borrowing capacity | 1,200 | 1,600 |
American Airlines, Inc. | April 2016 Revolving Facility |  |  |
Line of Credit Facility [Line Items] |  |  |
Line of credit facility, remaining borrowing capacity |  |  | 446
American Airlines, Inc. | April 2016 Revolving Facility | Forecast |  |  |
Line of Credit Facility [Line Items] |  |  |
Line of credit facility, maximum borrowing capacity | $ 342 | $ 446 |
American Airlines, Inc. | Other short-term facility |  |  |
Line of Credit Facility [Line Items] |  |  |
Line of credit facility, remaining borrowing capacity |  |  | 49
American Airlines, Inc. | Cargo Receivable Facility |  |  |
Line of Credit Facility [Line Items] |  |  |
Line of credit facility, remaining borrowing capacity |  |  | $ 49

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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 Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(f)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480678/235-10-S99-1 + Details
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
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