Debt - Narrative (Details)		1 Months Ended			9 Months Ended
	Feb. 15, 2023 USD ($)	Jun. 30, 2023	Mar. 31, 2023	Feb. 28, 2023 USD ($)	Sep. 30, 2023 USD ($) day	Oct. 13, 2026 USD ($)	Oct. 11, 2024 USD ($)
Debt Instrument [Line Items]
Line of credit facility, available borrowing capacity					$ 2,868,000,000
American Airlines, Inc.
Debt Instrument [Line Items]
Line of credit facility, available borrowing capacity					2,868,000,000
Secured and Unsecured Debt
Debt Instrument [Line Items]
Debt instrument, repurchase amount					552,000,000
Secured Debt | American Airlines, Inc.
Debt Instrument [Line Items]
Debt instrument, repurchase amount					$ 539,000,000
6.50% Senior Notes | Unsecured Debt
Debt Instrument [Line Items]
Interest rate					6.50%
6.50% Senior Notes | Senior Notes
Debt Instrument [Line Items]
Interest rate					6.50%
Conversion terms, percentage sales price exceeds conversion price					130.00%
Convertible debt, threshold trading days | day					20
Convertible debt, threshold consecutive trading days | day					30
Conversion ratio					0.0617284
7.25% Senior Notes | Secured Debt
Debt Instrument [Line Items]
Interest rate					7.25%
7.25% Senior Notes | Secured Debt | American Airlines, Inc.
Debt Instrument [Line Items]
Interest rate					7.25%
7.25% Senior Notes | Senior Notes
Debt Instrument [Line Items]
Interest rate				7.25%
Aggregate principal amount				$ 750,000,000
7.25% Senior Notes | Senior Notes | American Airlines, Inc.
Debt Instrument [Line Items]
Interest rate	7.25%
Aggregate principal amount	$ 750,000,000
Collateral coverage ratio	1.6
Debt instrument, special interest rate	2.00%
7.25% Senior Notes | Senior Notes | On or Prior to the Fourth Anniversary | American Airlines, Inc.
Debt Instrument [Line Items]
Redemption price equal percentage	100.00%
7.25% Senior Notes | Senior Notes | After the Fourth Anniversary and On or Prior to the Fifth Anniversary | American Airlines, Inc.
Debt Instrument [Line Items]
Redemption price equal percentage	107.25%
Debt instrument, redemption price, percentage of original aggregate principal amount redeemed	40.00%
7.25% Senior Notes | Senior Notes | In the Event of Specified Change of Control | American Airlines, Inc.
Debt Instrument [Line Items]
Redemption price equal percentage	101.00%
2014 Revolving Facility | Term Loan | Base Rate
Debt Instrument [Line Items]
Basis spread on variable rate, floor			1.00%
Debt instrument, basis spread on variable rate, interest rate margin			1.75%
2014 Revolving Facility | Term Loan | SOFR
Debt Instrument [Line Items]
Basis spread on variable rate, floor			0.00%
Debt instrument, basis spread on variable rate, interest rate margin			0.75%
AAdvantage Term Loan Facility | Secured Debt | Base Rate | American Airlines, Inc.
Debt Instrument [Line Items]
Basis spread on variable rate, floor		0.00%
Debt instrument, basis spread on variable rate, interest rate margin		3.75%
AAdvantage Term Loan Facility | Secured Debt | SOFR | American Airlines, Inc.
Debt Instrument [Line Items]
Basis spread on variable rate, floor		0.75%
Debt instrument, basis spread on variable rate, interest rate margin		4.75%
Interest rate adjustment		0.26161%
Equipment Loans and Other Notes Payable | Secured Debt | American Airlines, Inc.
Debt Instrument [Line Items]
Proceeds from secured notes payable					$ 663,000,000
Long term debt average interest rate					6.90%
Revolving Credit Facility | Forecast | American Airlines, Inc.
Debt Instrument [Line Items]
Line of credit facility, aggregate commitments						$ 2,200,000,000	$ 2,800,000,000
Revolving Credit Facility | Cargo Receivable Facility | American Airlines, Inc.
Debt Instrument [Line Items]
Line of credit facility, available borrowing capacity					$ 55,000,000
Revolving Credit Facility | 2013 Revolving Facility
Debt Instrument [Line Items]
Line of credit facility, available borrowing capacity					736,000,000
Debt instrument, refinanced amount				$ 1,800,000,000
Revolving Credit Facility | 2013 Revolving Facility | American Airlines, Inc.
Debt Instrument [Line Items]
Line of credit facility, available borrowing capacity					736,000,000
Revolving Credit Facility | 2013 Revolving Facility | Base Rate
Debt Instrument [Line Items]
Basis spread on variable rate, floor			1.00%	1.00%
Debt instrument, basis spread on variable rate, interest rate margin				1.75%
Revolving Credit Facility | 2013 Revolving Facility | Base Rate | Interest Rate Margin One
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate, interest rate margin			2.25%
Revolving Credit Facility | 2013 Revolving Facility | Base Rate | Interest Rate Margin Two
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate, interest rate margin			2.50%
Revolving Credit Facility | 2013 Revolving Facility | Base Rate | Interest Rate Margin Three
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate, interest rate margin			2.75%
Revolving Credit Facility | 2013 Revolving Facility | SOFR
Debt Instrument [Line Items]
Basis spread on variable rate, floor			0.00%	0.00%
Debt instrument, basis spread on variable rate, interest rate margin				2.75%
Revolving Credit Facility | 2013 Revolving Facility | SOFR | Interest Rate Margin One
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate, interest rate margin			3.25%
Revolving Credit Facility | 2013 Revolving Facility | SOFR | Interest Rate Margin Two
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate, interest rate margin			3.50%
Revolving Credit Facility | 2013 Revolving Facility | SOFR | Interest Rate Margin Three
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate, interest rate margin			3.75%
Revolving Credit Facility | 2013 Revolving Facility | Forecast
Debt Instrument [Line Items]
Line of credit facility, aggregate commitments						563,000,000	736,000,000
Revolving Credit Facility | Credit Facility 2013, Term Loan
Debt Instrument [Line Items]
Line of credit facility, aggregate commitments				$ 1,000,000,000
Revolving Credit Facility | 2014 Revolving Facility
Debt Instrument [Line Items]
Line of credit facility, available borrowing capacity					1,631,000,000
Revolving Credit Facility | 2014 Revolving Facility | American Airlines, Inc.
Debt Instrument [Line Items]
Line of credit facility, available borrowing capacity					1,631,000,000
Revolving Credit Facility | 2014 Revolving Facility | Forecast
Debt Instrument [Line Items]
Line of credit facility, aggregate commitments						1,200,000,000	1,600,000,000
Revolving Credit Facility | April 2016 Revolving Facility
Debt Instrument [Line Items]
Line of credit facility, available borrowing capacity					446,000,000
Revolving Credit Facility | April 2016 Revolving Facility | American Airlines, Inc.
Debt Instrument [Line Items]
Line of credit facility, available borrowing capacity					$ 446,000,000
Revolving Credit Facility | April 2016 Revolving Facility | Forecast
Debt Instrument [Line Items]
Line of credit facility, aggregate commitments						$ 342,000,000	$ 446,000,000