Employee Benefit Plans - Profit Sharing Program (Details) - Deferred Profit Sharing	12 Months Ended
Dec. 31, 2020
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
Pre-tax income excluding special items for employee profit sharing, percentage	5.00%
American Airlines, Inc.
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
Pre-tax income excluding special items for employee profit sharing, percentage	5.00%

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.

No definition available.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration