Bankruptcy Settlement Obligations - Components of Bankruptcy Settlement Obligations (Detail) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Bankruptcy Settlement Obligations [Line Items]
Single-dip equity obligations	$ 147	$ 248
Labor-related deemed claim	46	77
Total	193	325
American Airlines, Inc. [Member]
Bankruptcy Settlement Obligations [Line Items]
Single-dip equity obligations	147	248
Labor-related deemed claim	46	77
Total	$ 193	$ 325