Employee Benefit Plans - Schedule of Amounts Recognized in Consolidated Balance Sheets (Detail) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Defined Benefit Plan Disclosure [Line Items]
Noncurrent liability	$ 7,842	$ 7,450
American Airlines, Inc. [Member]
Defined Benefit Plan Disclosure [Line Items]
Noncurrent liability	7,800	7,410
Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Current liability	7	7
Noncurrent liability	7,214	6,681
Amounts recognized in the consolidated balance sheets	7,221	6,688
Pension Benefits [Member] | American Airlines, Inc. [Member]
Defined Benefit Plan Disclosure [Line Items]
Current liability	7	7
Noncurrent liability	7,173	6,643
Amounts recognized in the consolidated balance sheets	7,180	6,650
Retiree Medical And Other Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Current liability	97	109
Noncurrent liability	628	769
Amounts recognized in the consolidated balance sheets	725	878
Retiree Medical And Other Postretirement Benefits [Member] | American Airlines, Inc. [Member]
Defined Benefit Plan Disclosure [Line Items]
Current liability	97	109
Noncurrent liability	627	767
Amounts recognized in the consolidated balance sheets	$ 724	$ 876