Debt - Components of Long-Term Debt (Details) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Total long-term debt	$ 34,855	$ 35,289
Less: Total unamortized debt discount, premium and issuance costs	396	386
Less: Current maturities	3,370	3,059
Long-term debt, net of current maturities	31,089	31,844
Secured Debt
Debt Instrument [Line Items]
Total long-term debt	29,609	30,043
Secured Debt \| 2013 Revolving Facility
Debt Instrument [Line Items]
Total long-term debt	$ 1,000	1,752
Variable interest rate	8.15%
Secured Debt \| 2014 Revolving Facility
Debt Instrument [Line Items]
Total long-term debt	$ 1,183	1,196
Variable interest rate	6.51%
Secured Debt \| 11.75% Senior Secured Notes
Debt Instrument [Line Items]
Total long-term debt	$ 2,500	2,500
Interest rate	11.75%
Secured Debt \| 10.75% Senior Secured Notes, IP Notes
Debt Instrument [Line Items]
Total long-term debt	$ 1,000	1,000
Interest rate	10.75%
Secured Debt \| 10.75% Senior Secured Notes, LGA/DCA Notes
Debt Instrument [Line Items]
Total long-term debt	$ 200	200
Interest rate	10.75%
Secured Debt \| 7.25% Senior Notes
Debt Instrument [Line Items]
Total long-term debt	$ 750	0
Interest rate	7.25%
Secured Debt \| 5.50% Senior Notes
Debt Instrument [Line Items]
Total long-term debt	$ 3,500	3,500
Interest rate	5.50%
Secured Debt \| 5.75% Senior Notes
Debt Instrument [Line Items]
Total long-term debt	$ 3,000	3,000
Interest rate	5.75%
Secured Debt \| AAdvantage Term Loan Facility
Debt Instrument [Line Items]
Total long-term debt	$ 3,500	3,500
Variable interest rate	9.56%
Secured Debt \| Enhanced Equipment Trust Certificates (EETC)
Debt Instrument [Line Items]
Total long-term debt	$ 8,776	9,175
Average interest rate	3.70%
Secured Debt \| Enhanced Equipment Trust Certificates (EETC) \| Minimum
Debt Instrument [Line Items]
Interest rate	2.88%
Secured Debt \| Enhanced Equipment Trust Certificates (EETC) \| Maximum
Debt Instrument [Line Items]
Interest rate	7.13%
Secured Debt \| Equipment Loans and Other Notes Payable
Debt Instrument [Line Items]
Total long-term debt	$ 3,150	3,170
Average interest rate	6.37%
Secured Debt \| Equipment Loans and Other Notes Payable \| Minimum
Debt Instrument [Line Items]
Interest rate	3.32%
Secured Debt \| Equipment Loans and Other Notes Payable \| Maximum
Debt Instrument [Line Items]
Interest rate	8.20%
Secured Debt \| Special Facility Revenue Bonds
Debt Instrument [Line Items]
Total long-term debt	$ 1,050	1,050
Secured Debt \| Special Facility Revenue Bonds \| Minimum
Debt Instrument [Line Items]
Interest rate	2.25%
Secured Debt \| Special Facility Revenue Bonds \| Maximum
Debt Instrument [Line Items]
Interest rate	5.38%
Unsecured Debt
Debt Instrument [Line Items]
Total long-term debt	$ 5,246	5,246
Unsecured Debt \| Payroll Support Program Promissory Note One, CARES Act
Debt Instrument [Line Items]
Total long-term debt	1,757	1,757
Unsecured Debt \| Payroll Support Program Promissory Note Two, CARES Act
Debt Instrument [Line Items]
Total long-term debt	1,030	1,030
Unsecured Debt \| Payroll Support Program Promissory Note Three, CARES Act
Debt Instrument [Line Items]
Total long-term debt	959	959
Unsecured Debt \| 6.50% Senior Notes
Debt Instrument [Line Items]
Total long-term debt	$ 1,000	1,000
Interest rate	6.50%
Unsecured Debt \| 3.75% Senior Notes
Debt Instrument [Line Items]
Total long-term debt	$ 500	500
Interest rate	3.75%
American Airlines, Inc.
Debt Instrument [Line Items]
Less: Total unamortized debt discount, premium and issuance costs	$ 377	364
Less: Current maturities	3,370	3,059
Long-term debt, net of current maturities	25,862	26,620
American Airlines, Inc. \| Secured Debt
Debt Instrument [Line Items]
Total long-term debt	29,609	30,043
American Airlines, Inc. \| Secured Debt \| 2013 Revolving Facility
Debt Instrument [Line Items]
Total long-term debt	$ 1,000	1,752
Variable interest rate	8.15%
American Airlines, Inc. \| Secured Debt \| 2014 Revolving Facility
Debt Instrument [Line Items]
Total long-term debt	$ 1,183	1,196
Variable interest rate	6.51%
American Airlines, Inc. \| Secured Debt \| 11.75% Senior Secured Notes
Debt Instrument [Line Items]
Total long-term debt	$ 2,500	2,500
Interest rate	11.75%
American Airlines, Inc. \| Secured Debt \| 10.75% Senior Secured Notes, IP Notes
Debt Instrument [Line Items]
Total long-term debt	$ 1,000	1,000
Interest rate	10.75%
American Airlines, Inc. \| Secured Debt \| 10.75% Senior Secured Notes, LGA/DCA Notes
Debt Instrument [Line Items]
Total long-term debt	$ 200	200
Interest rate	10.75%
American Airlines, Inc. \| Secured Debt \| 7.25% Senior Notes
Debt Instrument [Line Items]
Total long-term debt	$ 750	0
Interest rate	7.25%
American Airlines, Inc. \| Secured Debt \| 5.50% Senior Notes
Debt Instrument [Line Items]
Total long-term debt	$ 3,500	3,500
Interest rate	5.50%
American Airlines, Inc. \| Secured Debt \| 5.75% Senior Notes
Debt Instrument [Line Items]
Total long-term debt	$ 3,000	3,000
Interest rate	5.75%
American Airlines, Inc. \| Secured Debt \| AAdvantage Term Loan Facility
Debt Instrument [Line Items]
Total long-term debt	$ 3,500	3,500
Variable interest rate	9.56%
American Airlines, Inc. \| Secured Debt \| Enhanced Equipment Trust Certificates (EETC)
Debt Instrument [Line Items]
Total long-term debt	$ 8,776	9,175
Average interest rate	3.70%
American Airlines, Inc. \| Secured Debt \| Enhanced Equipment Trust Certificates (EETC) \| Minimum
Debt Instrument [Line Items]
Interest rate	2.88%
American Airlines, Inc. \| Secured Debt \| Enhanced Equipment Trust Certificates (EETC) \| Maximum
Debt Instrument [Line Items]
Interest rate	7.13%
American Airlines, Inc. \| Secured Debt \| Equipment Loans and Other Notes Payable
Debt Instrument [Line Items]
Total long-term debt	$ 3,150	3,170
Average interest rate	6.37%
American Airlines, Inc. \| Secured Debt \| Equipment Loans and Other Notes Payable \| Minimum
Debt Instrument [Line Items]
Interest rate	3.32%
American Airlines, Inc. \| Secured Debt \| Equipment Loans and Other Notes Payable \| Maximum
Debt Instrument [Line Items]
Interest rate	8.20%
American Airlines, Inc. \| Secured Debt \| Special Facility Revenue Bonds
Debt Instrument [Line Items]
Total long-term debt	$ 1,050	$ 1,050
American Airlines, Inc. \| Secured Debt \| Special Facility Revenue Bonds \| Minimum
Debt Instrument [Line Items]
Interest rate	2.25%
American Airlines, Inc. \| Secured Debt \| Special Facility Revenue Bonds \| Maximum
Debt Instrument [Line Items]
Interest rate	5.38%

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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- Definition

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.

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Amount of unamortized debt discount (premium) and debt issuance costs.

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- Definition

Weighted average interest rate of debt outstanding.

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Amount, excluding unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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The interest rate applicable to the portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a rate subject to change from time to time.

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