Debt - Components of Long-Term Debt - 2016-3 Enhanced Equipment Trust Certificates (Detail) - Enhanced Equipment Trust Certificates (EETC) [Member] - 2016-3 EETC [Member] $ in Millions	1 Months Ended
	Oct. 31, 2016 USD ($) Aircraft Debt_Instruments	Dec. 31, 2016 USD ($)
Debt Instrument [Line Items]
Number of debt instruments issued | Debt_Instruments	2
Debt instrument principal amount	$ 814
Number of aircraft financed by debt issuance | Aircraft	25
Debt instrument, escrowed proceeds used to purchase notes		$ 705
Debt instrument, remaining escrowed proceeds		109
American Airlines, Inc. [Member]
Debt Instrument [Line Items]
Number of debt instruments issued | Debt_Instruments	2
Debt instrument principal amount	$ 814
Number of aircraft financed by debt issuance | Aircraft	25
Debt instrument, escrowed proceeds used to purchase notes		705
Debt instrument, remaining escrowed proceeds		$ 109