Debt - AAdvantage Financing (Details) - USD ($)					1 Months Ended	12 Months Ended
	Jul. 20, 2026	Dec. 31, 2023	Jul. 31, 2023	Jul. 20, 2023	Jun. 30, 2023	Dec. 31, 2023	Dec. 31, 2022	Mar. 24, 2021
Debt Instrument [Line Items]
Total long-term debt		$ 32,759,000,000				$ 32,759,000,000	$ 35,289,000,000
American Airlines, Inc.
Debt Instrument [Line Items]
Total long-term debt		27,526,000,000				27,526,000,000
Secured Debt
Debt Instrument [Line Items]
Total long-term debt		27,526,000,000				27,526,000,000	30,043,000,000
Secured Debt | American Airlines, Inc.
Debt Instrument [Line Items]
Total long-term debt		$ 27,526,000,000				$ 27,526,000,000	30,043,000,000
5.50% Senior Notes | Senior Notes
Debt Instrument [Line Items]
Aggregate principal issued								$ 3,500,000,000
Fixed interest rate per annum								5.50%
Quarterly installments				$ 292,000,000
5.50% Senior Notes | Secured Debt
Debt Instrument [Line Items]
Fixed interest rate per annum		5.50%				5.50%
Total long-term debt		$ 2,917,000,000				$ 2,917,000,000	3,500,000,000
5.50% Senior Notes | Secured Debt | American Airlines, Inc.
Debt Instrument [Line Items]
Fixed interest rate per annum		5.50%				5.50%
Total long-term debt		$ 2,917,000,000				$ 2,917,000,000	3,500,000,000
5.75% Senior Notes | Senior Notes
Debt Instrument [Line Items]
Aggregate principal issued								$ 3,000,000,000
Fixed interest rate per annum								5.75%
5.75% Senior Notes | Senior Notes | Forecast
Debt Instrument [Line Items]
Quarterly installments	$ 250,000,000
5.75% Senior Notes | Secured Debt
Debt Instrument [Line Items]
Fixed interest rate per annum		5.75%				5.75%
Total long-term debt		$ 3,000,000,000				$ 3,000,000,000	3,000,000,000
5.75% Senior Notes | Secured Debt | American Airlines, Inc.
Debt Instrument [Line Items]
Fixed interest rate per annum		5.75%				5.75%
Total long-term debt		$ 3,000,000,000				$ 3,000,000,000	3,000,000,000
AAdvantage Term Loan Facility | Senior Notes
Debt Instrument [Line Items]
Quarterly installments			$ 175,000,000
AAdvantage Term Loan Facility | Secured Debt
Debt Instrument [Line Items]
Total long-term debt		$ 3,150,000,000				$ 3,150,000,000	3,500,000,000	$ 3,500,000,000
Redemption price percentage						100.00%
Variable interest rate		10.43%				10.43%
Mandatory prepayment amount, threshold net proceeds from pre-paid frequent flyer								$ 505,000,000
AAdvantage Term Loan Facility | Secured Debt | American Airlines, Inc.
Debt Instrument [Line Items]
Total long-term debt		$ 3,150,000,000				$ 3,150,000,000	$ 3,500,000,000
Variable interest rate		10.43%				10.43%
AAdvantage Term Loan Facility | Secured Debt | Base Rate | American Airlines, Inc.
Debt Instrument [Line Items]
Floor interest rate					0.00%
Interest rate margin					3.75%
AAdvantage Term Loan Facility | Secured Debt | SOFR | American Airlines, Inc.
Debt Instrument [Line Items]
Floor interest rate					0.75%
Interest rate margin		4.75%			4.75%
Interest rate adjustment					0.26161%