Quarterly Financial Data - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Restructuring Cost and Reserve [Line Items]
Special items, net	$ 2,000	$ 507	$ 1,051	$ 800	$ 559
Non-cash tax benefits	3,000
Integration related costs	450		1,000	810	443
Nonoperating special items, net	(592)
Merger integration expenses		280		7
Bankruptcy settlement obligations		116		116
Asset impairments charges		70
American Airlines, Inc. [Member]
Restructuring Cost and Reserve [Line Items]
Special items, net	2,500	495	1,051	783	559
Non-cash tax benefits	3,500
Integration related costs	447		$ 1,000	807	$ 443
Nonoperating special items, net	$ (592)
Merger integration expenses		284
Bankruptcy settlement obligations		116		$ 116
Asset impairments charges		$ 70