Income Taxes - Components of Income Tax Provision (Benefit) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Components Of Income Taxes [Line Items]
Current	$ 20	$ (16)	$ (22)
Deferred	(3,014)	346	(324)
Income tax provision (benefit)	(2,994)	330	(346)
American Airlines, Inc. [Member]
Components Of Income Taxes [Line Items]
Current	15	(24)	(30)
Deferred	(3,467)	344	(324)
Income tax provision (benefit)	$ (3,452)	$ 320	$ (354)