Debt - Components of Long-Term Debt (Details) - USD ($)	Dec. 31, 2022	Dec. 31, 2021	Mar. 24, 2021
Debt Instrument [Line Items]
Total long-term debt	$ 35,289,000,000	$ 37,781,000,000
Less: Total unamortized debt discount, premium and issuance costs	386,000,000	458,000,000
Less: Current maturities	3,059,000,000	2,315,000,000
Long-term debt, net of current maturities	31,844,000,000	35,008,000,000
Secured Debt
Debt Instrument [Line Items]
Total long-term debt	30,043,000,000	31,785,000,000
Secured Debt | 2013 Credit  Facilities
Debt Instrument [Line Items]
Total long-term debt	$ 1,752,000,000	1,770,000,000
Variable interest rate	6.14%
Secured Debt | 2013 Credit  Facilities | Revolving Credit Facility
Debt Instrument [Line Items]
Long-term debt, net of current maturities	$ 0
Secured Debt | 2014 Credit  Facilities
Debt Instrument [Line Items]
Total long-term debt	$ 1,196,000,000	1,208,000,000
Variable interest rate	6.14%
Secured Debt | 2014 Credit  Facilities | Revolving Credit Facility
Debt Instrument [Line Items]
Long-term debt, net of current maturities	$ 0
Secured Debt | December 2016 Term Loan Facility
Debt Instrument [Line Items]
Total long-term debt	0	1,188,000,000
Secured Debt | Senior Notes 11.75% Due 2025
Debt Instrument [Line Items]
Total long-term debt	$ 2,500,000,000	2,500,000,000
Fixed interest rate per annum	11.75%
Secured Debt | Senior Secured IP Notes 10.75% Due 2026
Debt Instrument [Line Items]
Total long-term debt	$ 1,000,000,000	1,000,000,000
Fixed interest rate per annum	10.75%
Secured Debt | Senior Secured LGA/DCA Notes 10.75%
Debt Instrument [Line Items]
Total long-term debt	$ 200,000,000	200,000,000
Fixed interest rate per annum	10.75%
Secured Debt | 5.50% Senior Notes
Debt Instrument [Line Items]
Total long-term debt	$ 3,500,000,000	3,500,000,000
Fixed interest rate per annum	5.50%
Secured Debt | 5.75% Senior Notes
Debt Instrument [Line Items]
Total long-term debt	$ 3,000,000,000	3,000,000,000
Fixed interest rate per annum	5.75%
Secured Debt | AAdvantage Term Loan Facility
Debt Instrument [Line Items]
Total long-term debt	$ 3,500,000,000	3,500,000,000	$ 3,500,000,000
Variable interest rate	8.99%
Secured Debt | AAdvantage Term Loan Facility | Minimum
Debt Instrument [Line Items]
Variable interest rate	0.75%
Secured Debt | Enhanced Equipment Trust Certificates (EETC)
Debt Instrument [Line Items]
Total long-term debt	$ 9,175,000,000	9,357,000,000
Average interest rate	3.74%
Secured Debt | Enhanced Equipment Trust Certificates (EETC) | Minimum
Debt Instrument [Line Items]
Fixed interest rate per annum	2.88%
Secured Debt | Enhanced Equipment Trust Certificates (EETC) | Maximum
Debt Instrument [Line Items]
Fixed interest rate per annum	7.13%
Secured Debt | Equipment Loans and Other Notes Payable
Debt Instrument [Line Items]
Total long-term debt	$ 3,170,000,000	3,433,000,000
Average interest rate	5.95%
Secured Debt | Equipment Loans and Other Notes Payable | Minimum
Debt Instrument [Line Items]
Fixed interest rate per annum	3.33%
Secured Debt | Equipment Loans and Other Notes Payable | Maximum
Debt Instrument [Line Items]
Fixed interest rate per annum	8.01%
Secured Debt | Special Facility Revenue Bonds
Debt Instrument [Line Items]
Total long-term debt	$ 1,050,000,000	1,129,000,000
Secured Debt | Special Facility Revenue Bonds | Minimum
Debt Instrument [Line Items]
Fixed interest rate per annum	2.25%
Secured Debt | Special Facility Revenue Bonds | Maximum
Debt Instrument [Line Items]
Fixed interest rate per annum	5.38%
Unsecured Debt
Debt Instrument [Line Items]
Total long-term debt	$ 5,246,000,000	5,996,000,000
Unsecured Debt | PSP1 Promissory Note
Debt Instrument [Line Items]
Total long-term debt	1,757,000,000	1,765,000,000
Unsecured Debt | PSP2 Promissory Note
Debt Instrument [Line Items]
Total long-term debt	1,030,000,000	1,035,000,000
Unsecured Debt | PSP3 Promissory Note
Debt Instrument [Line Items]
Total long-term debt	959,000,000	946,000,000
Unsecured Debt | Convertible Senior Notes 6.50% Due 2025
Debt Instrument [Line Items]
Total long-term debt	$ 1,000,000,000	1,000,000,000
Fixed interest rate per annum	6.50%
Unsecured Debt | Senior Notes 3.75% Matures 2025
Debt Instrument [Line Items]
Total long-term debt	$ 500,000,000	500,000,000
Fixed interest rate per annum	3.75%
Unsecured Debt | Senior Notes 5.000% Due 2022
Debt Instrument [Line Items]
Total long-term debt	$ 0	750,000,000
Fixed interest rate per annum	5.00%
American Airlines, Inc.
Debt Instrument [Line Items]
Total long-term debt	$ 30,043,000,000
Less: Total unamortized debt discount, premium and issuance costs	364,000,000	428,000,000
Less: Current maturities	3,059,000,000	1,568,000,000
Long-term debt, net of current maturities	26,620,000,000	29,789,000,000
American Airlines, Inc. | Secured Debt
Debt Instrument [Line Items]
Total long-term debt	30,043,000,000	31,785,000,000
American Airlines, Inc. | Secured Debt | 2013 Credit  Facilities
Debt Instrument [Line Items]
Total long-term debt	$ 1,752,000,000	1,770,000,000
Variable interest rate	6.14%
American Airlines, Inc. | Secured Debt | 2014 Credit  Facilities
Debt Instrument [Line Items]
Total long-term debt	$ 1,196,000,000	1,208,000,000
Variable interest rate	6.14%
American Airlines, Inc. | Secured Debt | December 2016 Term Loan Facility
Debt Instrument [Line Items]
Total long-term debt	$ 0	1,188,000,000
American Airlines, Inc. | Secured Debt | Senior Notes 11.75% Due 2025
Debt Instrument [Line Items]
Total long-term debt	$ 2,500,000,000	2,500,000,000
Fixed interest rate per annum	11.75%
American Airlines, Inc. | Secured Debt | Senior Secured IP Notes 10.75% Due 2026
Debt Instrument [Line Items]
Total long-term debt	$ 1,000,000,000	1,000,000,000
Fixed interest rate per annum	10.75%
American Airlines, Inc. | Secured Debt | Senior Secured LGA/DCA Notes 10.75%
Debt Instrument [Line Items]
Total long-term debt	$ 200,000,000	200,000,000
Fixed interest rate per annum	10.75%
American Airlines, Inc. | Secured Debt | 5.50% Senior Notes
Debt Instrument [Line Items]
Total long-term debt	$ 3,500,000,000	3,500,000,000
Fixed interest rate per annum	5.50%
American Airlines, Inc. | Secured Debt | 5.75% Senior Notes
Debt Instrument [Line Items]
Total long-term debt	$ 3,000,000,000	3,000,000,000
Fixed interest rate per annum	5.75%
American Airlines, Inc. | Secured Debt | AAdvantage Term Loan Facility
Debt Instrument [Line Items]
Total long-term debt	$ 3,500,000,000	3,500,000,000
Variable interest rate	8.99%
American Airlines, Inc. | Secured Debt | Enhanced Equipment Trust Certificates (EETC)
Debt Instrument [Line Items]
Total long-term debt	$ 9,175,000,000	9,357,000,000
Average interest rate	3.74%
American Airlines, Inc. | Secured Debt | Enhanced Equipment Trust Certificates (EETC) | Minimum
Debt Instrument [Line Items]
Fixed interest rate per annum	2.88%
American Airlines, Inc. | Secured Debt | Enhanced Equipment Trust Certificates (EETC) | Maximum
Debt Instrument [Line Items]
Fixed interest rate per annum	7.13%
American Airlines, Inc. | Secured Debt | Equipment Loans and Other Notes Payable
Debt Instrument [Line Items]
Total long-term debt	$ 3,170,000,000	3,433,000,000
Average interest rate	5.95%
American Airlines, Inc. | Secured Debt | Equipment Loans and Other Notes Payable | Minimum
Debt Instrument [Line Items]
Fixed interest rate per annum	3.33%
American Airlines, Inc. | Secured Debt | Equipment Loans and Other Notes Payable | Maximum
Debt Instrument [Line Items]
Fixed interest rate per annum	8.01%
American Airlines, Inc. | Secured Debt | Special Facility Revenue Bonds
Debt Instrument [Line Items]
Total long-term debt	$ 1,050,000,000	$ 1,129,000,000
American Airlines, Inc. | Secured Debt | Special Facility Revenue Bonds | Minimum
Debt Instrument [Line Items]
Fixed interest rate per annum	2.25%
American Airlines, Inc. | Secured Debt | Special Facility Revenue Bonds | Maximum
Debt Instrument [Line Items]
Fixed interest rate per annum	5.38%
American Airlines, Inc. | Unsecured Debt | Convertible Senior Notes 6.50% Due 2025
Debt Instrument [Line Items]
Fixed interest rate per annum	6.50%
American Airlines, Inc. | Unsecured Debt | Senior Notes 3.75% Matures 2025
Debt Instrument [Line Items]
Fixed interest rate per annum	3.75%