Income Taxes - Computation of Income Tax Provision (Benefit) (Detail) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Tax Disclosure [Line Items]
Statutory income tax provision (benefit)		$ 1,616	$ 1,123	$ (763)
State income tax provision (benefit), net of federal tax effect		72	75	(8)
Book expenses (benefits) not deductible for tax purposes		57	(1)	27
Bankruptcy administration expenses		3	95	83
Interest cutback to net operating loss (NOL)				141
Alternative minimum tax credit refund			(24)	(22)
Change in valuation allowance		(4,742)	(1,323)	717
Tax provision (benefit) resulting from OCI allocation			330	(538)
Other, net			55	17
Income tax provision (benefit)		(2,994)	330	(346)
American Airlines, Inc. [Member]
Income Tax Disclosure [Line Items]
Statutory income tax provision (benefit)		1,635	1,144	(725)
State income tax provision (benefit), net of federal tax effect		71	81	(18)
Book expenses (benefits) not deductible for tax purposes		55	4	25
Bankruptcy administration expenses		3	86	82
Interest cutback to net operating loss (NOL)				53
Alternative minimum tax credit refund			(29)	(30)
Change in valuation allowance	$ 214	(5,216)	(1,285)	780
Tax provision (benefit) resulting from OCI allocation			328	(538)
Other, net			(9)	17
Income tax provision (benefit)		$ (3,452)	$ 320	$ (354)