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Face (par) amount of debt instrument at time of issuance.

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

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Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

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Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer.

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Debt - Additional Information (Detail) (USD $)	0 Months Ended	3 Months Ended	0 Months Ended	1 Months Ended
Debt - Additional Information (Detail) (USD $)	Mar. 31, 2015	Mar. 31, 2015 Aircraft	Jan. 02, 2015	Mar. 31, 2015	Mar. 31, 2014
Debt Instrument [Line Items]
Debt instrument, stated interest rate percentage					7.25%
Enhanced Equipment Trust Certificate [Member] \| Equipment Notes [Member]
Debt Instrument [Line Items]
Principal amount	$ 1,200,000,000	$ 1,200,000,000		$ 1,200,000,000
Number of owned aircraft	28	28		28
Remaining escrowed proceeds		195,000,000
Total escrowed proceeds	1,000,000,000
Number of aircraft secured by liens		19
Number of aircraft delivered		9
Enhanced Equipment Trust Certificate [Member] \| 2015 Equipment Notes, Series A [Member]
Debt Instrument [Line Items]
Notes payable	796,000,000	796,000,000		796,000,000
Debt instrument, stated interest rate percentage	3.375%	3.375%		3.375%
Debt instrument, maturity date		May 2027
Enhanced Equipment Trust Certificate [Member] \| 2015 Equipment Notes, Series B [Member]
Debt Instrument [Line Items]
Notes payable	223,000,000	223,000,000		223,000,000
Debt instrument, stated interest rate percentage	3.70%	3.70%		3.70%
Debt instrument, maturity date		May 2023
Enhanced Equipment Trust Certificate [Member] \| American Airlines, Inc. [Member] \| Equipment Notes [Member]
Debt Instrument [Line Items]
Principal amount	1,200,000,000	1,200,000,000		1,200,000,000
Number of owned aircraft	28	28		28
Remaining escrowed proceeds		195,000,000
Total escrowed proceeds	1,000,000,000
Number of aircraft secured by liens		19
Number of aircraft remaining to be delivered		9
Enhanced Equipment Trust Certificate [Member] \| American Airlines, Inc. [Member] \| 2014 Equipment Notes, Series A [Member]
Debt Instrument [Line Items]
Notes payable	796,000,000	796,000,000		796,000,000
Debt instrument, stated interest rate percentage	3.375%	3.375%		3.375%
Debt instrument, maturity date		May 2027
Enhanced Equipment Trust Certificate [Member] \| American Airlines, Inc. [Member] \| 2014 Equipment Notes, Series B [Member]
Debt Instrument [Line Items]
Notes payable	223,000,000	223,000,000		223,000,000
Debt instrument, stated interest rate percentage	3.70%	3.70%		3.70%
Debt instrument, maturity date		May 2023
Secured Debt Member] \| Other Aircraft Financing Transaction [Member]
Debt Instrument [Line Items]
Notes payable	247,000,000	247,000,000		247,000,000
Secured Debt Member] \| Other Aircraft Financing Transaction [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Debt instrument, maturity date		2025
Secured Debt Member] \| Other Aircraft Financing Transaction [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Debt instrument, maturity date		2027
Secured Debt Member] \| AAdvantage Loan [Member]
Debt Instrument [Line Items]
Repayment of loan outstanding			400,000,000
Early debt extinguishment gain		17,000,000
Secured Debt Member] \| American Airlines, Inc. [Member] \| Other Aircraft Financing Transaction [Member]
Debt Instrument [Line Items]
Notes payable	208,000,000	208,000,000		208,000,000
Secured Debt Member] \| American Airlines, Inc. [Member] \| Other Aircraft Financing Transaction [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Debt instrument, maturity date		2025
Secured Debt Member] \| American Airlines, Inc. [Member] \| Other Aircraft Financing Transaction [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Debt instrument, maturity date		2026
Secured Debt Member] \| American Airlines, Inc. [Member] \| AAdvantage Loan [Member]
Debt Instrument [Line Items]
Repayment of loan outstanding			400,000,000
Early debt extinguishment gain		17,000,000
Unsecured Debt [Member] \| Senior Notes, 4.625, Due in 2020 [Member]
Debt Instrument [Line Items]
Principal amount	$ 500,000,000	$ 500,000,000		$ 500,000,000
Debt instrument, stated interest rate percentage	4.625%	4.625%		4.625%
Debt instrument, maturity date		2020
Redemption price percentage				101.00%