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.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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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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- Definition

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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- Definition

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

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Topic 470
-SubTopic 20
-Section 50
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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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Debt - Components of Long-Term Debt (Details) - USD ($) $ in Millions	Dec. 31, 2019	May 31, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Total long-term debt	$ 23,856		$ 24,001
Less: Total unamortized debt discount, premium and issuance costs	211		222
Less: Current maturities	2,749		3,213
Long-term debt, net of current maturities	20,896		20,566
Secured Debt [Member]
Debt Instrument [Line Items]
Total long-term debt	22,606		22,751
Secured Debt [Member] \| 2013 Credit Facilities [Member]
Debt Instrument [Line Items]
Total long-term debt	$ 1,807		1,825
Variable interest rate	3.54%
Secured Debt [Member] \| 2014 Credit Facilities [Member]
Debt Instrument [Line Items]
Total long-term debt	$ 1,202		1,215
Variable interest rate	3.72%
Secured Debt [Member] \| April 2016 Credit Facilities [Member]
Debt Instrument [Line Items]
Total long-term debt	$ 970		980
Variable interest rate	3.80%
Secured Debt [Member] \| December 2016 Credit Facilities [Member]
Debt Instrument [Line Items]
Total long-term debt	$ 1,213		1,225
Variable interest rate	3.74%
Secured Debt [Member] \| Enhanced Equipment Trust Certificates (EETC) [Member]
Debt Instrument [Line Items]
Total long-term debt	$ 11,933		11,648
Average interest rate	4.05%
Secured Debt [Member] \| Enhanced Equipment Trust Certificates (EETC) [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Fixed interest rate per annum	3.00%
Secured Debt [Member] \| Enhanced Equipment Trust Certificates (EETC) [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Fixed interest rate per annum	8.39%
Secured Debt [Member] \| Equipment Loans and Other Notes Payable [Member]
Debt Instrument [Line Items]
Total long-term debt	$ 4,727		5,060
Average interest rate	3.45%
Secured Debt [Member] \| Equipment Loans and Other Notes Payable [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Fixed interest rate per annum	2.99%
Secured Debt [Member] \| Equipment Loans and Other Notes Payable [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Fixed interest rate per annum	7.31%
Secured Debt [Member] \| Special Facility Revenue Bonds [Member]
Debt Instrument [Line Items]
Total long-term debt	$ 754		798
Secured Debt [Member] \| Special Facility Revenue Bonds [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Fixed interest rate per annum	5.00%
Secured Debt [Member] \| Special Facility Revenue Bonds [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Fixed interest rate per annum	8.00%
Unsecured Debt [Member]
Debt Instrument [Line Items]
Total long-term debt	$ 1,250		1,250
Unsecured Debt [Member] \| Senior Notes 4.625% Due in 2020 [Member]
Debt Instrument [Line Items]
Total long-term debt	$ 500		500
Fixed interest rate per annum	4.625%
Unsecured Debt [Member] \| Senior Notes 5.000% Due 2022 [Member]
Debt Instrument [Line Items]
Total long-term debt	$ 750		0
Fixed interest rate per annum	5.00%	5.00%
Unsecured Debt [Member] \| 5.50% Senior Notes [Member]
Debt Instrument [Line Items]
Total long-term debt	$ 0		750
Fixed interest rate per annum	5.50%
American Airlines, Inc. [Member]
Debt Instrument [Line Items]
Total long-term debt	$ 22,577
Less: Total unamortized debt discount, premium and issuance costs	205		219
Less: Current maturities	2,246		2,466
Long-term debt, net of current maturities	20,126		20,037
American Airlines, Inc. [Member] \| Secured Debt [Member]
Debt Instrument [Line Items]
Total long-term debt	22,577		22,722
American Airlines, Inc. [Member] \| Secured Debt [Member] \| 2013 Credit Facilities [Member]
Debt Instrument [Line Items]
Total long-term debt	$ 1,807		1,825
Variable interest rate	3.54%
American Airlines, Inc. [Member] \| Secured Debt [Member] \| 2014 Credit Facilities [Member]
Debt Instrument [Line Items]
Total long-term debt	$ 1,202		1,215
Variable interest rate	3.72%
American Airlines, Inc. [Member] \| Secured Debt [Member] \| April 2016 Credit Facilities [Member]
Debt Instrument [Line Items]
Total long-term debt	$ 970		980
Variable interest rate	3.80%
American Airlines, Inc. [Member] \| Secured Debt [Member] \| December 2016 Credit Facilities [Member]
Debt Instrument [Line Items]
Total long-term debt	$ 1,213		1,225
Variable interest rate	3.74%
American Airlines, Inc. [Member] \| Secured Debt [Member] \| Enhanced Equipment Trust Certificates (EETC) [Member]
Debt Instrument [Line Items]
Total long-term debt	$ 11,933		11,648
Average interest rate	4.05%
American Airlines, Inc. [Member] \| Secured Debt [Member] \| Enhanced Equipment Trust Certificates (EETC) [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Fixed interest rate per annum	3.00%
American Airlines, Inc. [Member] \| Secured Debt [Member] \| Enhanced Equipment Trust Certificates (EETC) [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Fixed interest rate per annum	8.39%
American Airlines, Inc. [Member] \| Secured Debt [Member] \| Equipment Loans and Other Notes Payable [Member]
Debt Instrument [Line Items]
Total long-term debt	$ 4,727		5,060
Average interest rate	3.45%
American Airlines, Inc. [Member] \| Secured Debt [Member] \| Equipment Loans and Other Notes Payable [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Fixed interest rate per annum	2.99%
American Airlines, Inc. [Member] \| Secured Debt [Member] \| Equipment Loans and Other Notes Payable [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Fixed interest rate per annum	7.31%
American Airlines, Inc. [Member] \| Secured Debt [Member] \| Special Facility Revenue Bonds [Member]
Debt Instrument [Line Items]
Total long-term debt	$ 725		$ 769
Fixed interest rate per annum	5.00%