Transactions with Related Parties - Summary of Net Payables to (Receivables from) Related Parties (Detail) - American Airlines, Inc. [Member] - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Related Party Transaction [Line Items]
Net receivables to related parties	$ 1,981
Net payables to related parties		$ (1,703)
American Airlines Group (Parent Company Only) [Member]
Related Party Transaction [Line Items]
Net receivables to related parties	4,489	653
American Airlines Group's Wholly Owned Subsidiaries [Member]
Related Party Transaction [Line Items]
Net payables to related parties	$ (2,508)	$ (2,356)