Emergence from Chapter 11 - Schedule of Reorganization Items, Net (Parenthetical) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2015
Restructuring Cost and Reserve [Line Items]
Value of deemed claim	$ 1,700
Plan of reorganization additional estimated allowed claim amounts	$ 180
Conversion discount for unsecured creditors receiving AAG Series A Preferred Stock	3.50%	3.50%
American Airlines, Inc. [Member]
Restructuring Cost and Reserve [Line Items]
Value of deemed claim	$ 1,700
Plan of reorganization additional estimated allowed claim amounts	$ 180
Conversion discount for unsecured creditors receiving AAG Series A Preferred Stock	3.50%	3.50%