Nature of Operations and Operating Environment - Additional Information (Detail) Passenger in Millions	12 Months Ended
	Dec. 31, 2015 Employees Aircraft Country Passenger Destinations Flights $ / shares	Dec. 31, 2014 $ / shares	Dec. 09, 2013 $ / shares
Product Information [Line Items]
Average number of daily flights operated | Flights	6,700
Number of destinations | Destinations	350
Number of countries which entity operates (more than 50) | Country	50
Number of passengers boarding flights | Passenger	201
Number of full-time equivalent employees	118,500
Percentage of employees covered by collective bargaining agreements with various labor unions	82.00%
Common stock, par value | $ / shares	$ 0.01	$ 0.01	$ 0.01
American Airlines, Inc. [Member]
Product Information [Line Items]
Number of full-time equivalent employees	98,900
Percentage of employees covered by collective bargaining agreements with various labor unions	85.00%
Common stock, par value | $ / shares	$ 1.00	$ 1.00	$ 0.01
Mainline [Member]
Product Information [Line Items]
Number of aircraft operated | Aircraft	946
Regional Carrier [Member]
Product Information [Line Items]
Number of aircraft operated | Aircraft	587
Number of full-time equivalent employees	19,600