Debt - Schedule of Maturities of Long-Term Debt and Capital Leases (Detail) $ in Millions	Dec. 31, 2015 USD ($)
Debt Instrument [Line Items]
2016	$ 2,266
2017	1,598
2018	2,134
2019	3,378
2020	3,587
2021 and thereafter	7,844
Total	20,807
American Airlines, Inc. [Member]
Debt Instrument [Line Items]
2016	2,266
2017	1,598
2018	1,634
2019	2,628
2020	3,081
2021 and thereafter	7,820
Total	$ 19,054