Commitments, Contingencies and Guarantees - Additional Information (Details)		1 Months Ended	12 Months Ended
	Jun. 15, 2018 USD ($)	Jun. 30, 2015 lawsuit	Dec. 31, 2022 USD ($) employee engine aircraft	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Feb. 28, 2023 lawsuit	Dec. 07, 2022 plaintiff	Jan. 31, 2020 ft²	May 13, 2019 party	Dec. 31, 2018 USD ($) lane
Long-term Purchase Commitment [Line Items]
Airport redevelopment, number of security screening lanes | lane										10
Payments for terminal upgrade project			$ 360,000,000	$ 204,000,000	$ 173,000,000
Number of aircraft owned through financing under EETCs | aircraft			352
Number of spare aircraft engines owned through financing under EETCs | engine			60
Long-term debt			$ 35,289,000,000	37,781,000,000
Operating lease liabilities			8,024,000,000	8,117,000,000
Letters of credit outstanding and surety bonds, amount			$ 218,000,000
Number of full-time equivalent employees | employee			129,700
Percentage of employees covered by collective bargaining agreements with various labor unions			87.00%
Percentage of employees covered by collective bargaining agreements that are currently available			0.48
Private Party Antitrust Action Related to Passenger Capacity
Long-term Purchase Commitment [Line Items]
Number of putative class action lawsuits | lawsuit		100
Settlement amount	$ 45,000,000
Litigation settlement, number of parties who objected to the settlement | party									3
Private Party Antitrust Actions Related to the Northeast Alliance
Long-term Purchase Commitment [Line Items]
Number of private party plaintiffs who filed putative class action | plaintiff							2
Subsequent Event | Private Party Antitrust Actions Related to the Northeast Alliance
Long-term Purchase Commitment [Line Items]
Number of additional putative class action lawsuits | lawsuit						2
JFK Airport Upgrade
Long-term Purchase Commitment [Line Items]
Cost incurred for terminal upgrade project			$ 348,000,000
Payments for terminal upgrade project			172,000,000
Restricted Cash
Long-term Purchase Commitment [Line Items]
Letters of credit outstanding and surety bonds, amount			100,000,000
Leasehold Improvements | LAX Modernization Project
Long-term Purchase Commitment [Line Items]
Airport development, amount										$ 1,600,000,000
Airport redevelopment, costs incurred and capitalized			579,000,000
Airport redevelopment cost incurred in current year			241,000,000
Non-proprietary improvements sold and transferred			176,000,000
Non-proprietary improvements sold and transferred in current period			44,000,000
Proceeds for non-proprietary improvements not yet ready for use			$ 141,000,000
Regional Carrier
Long-term Purchase Commitment [Line Items]
Number of full-time equivalent employees | employee			27,700
Special Facility Revenue Bonds
Long-term Purchase Commitment [Line Items]
Operating lease liabilities			$ 321,000,000
Guarantor obligations, maximum exposure, undiscounted			538,000,000
Secured Debt
Long-term Purchase Commitment [Line Items]
Long-term debt			30,043,000,000	31,785,000,000
Guarantor obligations, maximum exposure, undiscounted			18,300,000,000
Unsecured Debt
Long-term Purchase Commitment [Line Items]
Long-term debt			5,246,000,000	5,996,000,000
Enhanced Equipment Trust Certificates (EETC) | Secured Debt
Long-term Purchase Commitment [Line Items]
Long-term debt			9,175,000,000	9,357,000,000
Special Facility Revenue Bonds | Secured Debt
Long-term Purchase Commitment [Line Items]
Long-term debt			1,050,000,000	1,129,000,000
Guarantor obligations, maximum exposure, undiscounted			1,100,000,000
PSP1 Promissory Note | Unsecured Debt
Long-term Purchase Commitment [Line Items]
Long-term debt			1,757,000,000	1,765,000,000
Senior Notes 3.75% Matures 2025 | Unsecured Debt
Long-term Purchase Commitment [Line Items]
Long-term debt			$ 500,000,000	500,000,000
Fixed interest rate per annum			3.75%
Convertible Senior Notes 6.50% Due 2025 | Unsecured Debt
Long-term Purchase Commitment [Line Items]
Long-term debt			$ 1,000,000,000	1,000,000,000
Fixed interest rate per annum			6.50%
American Airlines, Inc.
Long-term Purchase Commitment [Line Items]
Airport redevelopment, number of security screening lanes | lane										10
Payments for terminal upgrade project			$ 360,000,000	204,000,000	$ 173,000,000
Number of aircraft owned through financing under EETCs | aircraft			352
Number of spare aircraft engines owned through financing under EETCs | engine			60
Long-term debt			$ 30,043,000,000
Operating lease liabilities			7,961,000,000	8,074,000,000
Letters of credit outstanding and surety bonds, amount			$ 218,000,000
Number of full-time equivalent employees | employee			102,000
Percentage of employees covered by collective bargaining agreements with various labor unions			87.00%
Percentage of employees covered by collective bargaining agreements that are currently available			0.53
American Airlines, Inc. | Private Party Antitrust Action Related to Passenger Capacity
Long-term Purchase Commitment [Line Items]
Number of putative class action lawsuits | lawsuit		100
Settlement amount	$ 45,000,000
Litigation settlement, number of parties who objected to the settlement | party									3
American Airlines, Inc. | Private Party Antitrust Actions Related to the Northeast Alliance
Long-term Purchase Commitment [Line Items]
Number of private party plaintiffs who filed putative class action | plaintiff							2
American Airlines, Inc. | Subsequent Event | Private Party Antitrust Actions Related to the Northeast Alliance
Long-term Purchase Commitment [Line Items]
Number of additional putative class action lawsuits | lawsuit						2
American Airlines, Inc. | JFK Airport Upgrade
Long-term Purchase Commitment [Line Items]
Cost incurred for terminal upgrade project			$ 348,000,000
Payments for terminal upgrade project			172,000,000
American Airlines, Inc. | JFK Airport Upgrade, Existing Terminal Building
Long-term Purchase Commitment [Line Items]
Area of real estate property | ft²								73,300
American Airlines, Inc. | JFK Airport Upgrade, New Terminal Building
Long-term Purchase Commitment [Line Items]
Area of real estate property | ft²								51,000
American Airlines, Inc. | Leasehold Improvements | LAX Modernization Project
Long-term Purchase Commitment [Line Items]
Airport development, amount										$ 1,600,000,000
Airport redevelopment, costs incurred and capitalized			579,000,000
Airport redevelopment cost incurred in current year			241,000,000
Non-proprietary improvements sold and transferred			176,000,000
Non-proprietary improvements sold and transferred in current period			44,000,000
Proceeds for non-proprietary improvements not yet ready for use			141,000,000
American Airlines, Inc. | Special Facility Revenue Bonds
Long-term Purchase Commitment [Line Items]
Guarantor obligations, maximum exposure, undiscounted			538,000,000
American Airlines, Inc. | Secured Debt
Long-term Purchase Commitment [Line Items]
Long-term debt			30,043,000,000	31,785,000,000
American Airlines, Inc. | Enhanced Equipment Trust Certificates (EETC) | Secured Debt
Long-term Purchase Commitment [Line Items]
Long-term debt			9,175,000,000	9,357,000,000
American Airlines, Inc. | Special Facility Revenue Bonds | Secured Debt
Long-term Purchase Commitment [Line Items]
Long-term debt			1,050,000,000	$ 1,129,000,000
American Airlines, Inc. | PSP1 Promissory Note | Unsecured Debt
Long-term Purchase Commitment [Line Items]
Guarantor obligations, maximum exposure, undiscounted			1,800,000,000
American Airlines, Inc. | Senior Notes 3.75% Matures 2025 | Unsecured Debt
Long-term Purchase Commitment [Line Items]
Guarantor obligations, maximum exposure, undiscounted			$ 500,000,000
Fixed interest rate per annum			3.75%
American Airlines, Inc. | Convertible Senior Notes 6.50% Due 2025 | Unsecured Debt
Long-term Purchase Commitment [Line Items]
Guarantor obligations, maximum exposure, undiscounted			$ 1,000,000,000
Fixed interest rate per annum			6.50%