Income Taxes - Computation of Income Tax Provision (Benefit) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Tax Disclosure [Line Items]
Statutory income tax provision	$ 1,505	$ 1,616	$ 1,123
State income tax provision, net of federal tax effect	63	72	75
Book expenses (benefits) not deductible for tax purposes	34	57	(1)
Bankruptcy administration expenses	1	3	95
Alternative minimum tax (AMT) credit refund			(24)
Change in valuation allowance	7	(4,742)	(1,323)
Income tax provision resulting from OCI allocation			330
Other, net	13		55
Income tax provision (benefit)	1,623	(2,994)	330
American Airlines, Inc. [Member]
Income Tax Disclosure [Line Items]
Statutory income tax provision	1,555	1,635	1,144
State income tax provision, net of federal tax effect	67	71	81
Book expenses (benefits) not deductible for tax purposes	32	55	4
Bankruptcy administration expenses	1	3	86
Alternative minimum tax (AMT) credit refund			(29)
Change in valuation allowance	(1)	(5,216)	(1,285)
Income tax provision resulting from OCI allocation			328
Other, net	8		(9)
Income tax provision (benefit)	$ 1,662	$ (3,452)	$ 320