Regional Expenses - Components of Regional Expenses (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Regional Expenses [Line Items]
Aircraft fuel and related taxes	$ 1,774	$ 2,830	$ 3,318	$ 5,541
Salaries, wages and benefits	2,364	2,163	4,737	4,282
Maintenance, materials and repairs	502	514	995	999
Other rent and landing fees	451	441	859	866
Aircraft rent	316	312	633	631
Selling expenses	350	402	686	804
Depreciation and amortization	340	319	676	626
Special items, net	144	251	447	114
Other	1,108	1,067	2,147	2,108
Total regional expenses	1,557	1,657	3,019	3,251
American Airlines, Inc. [Member]
Regional Expenses [Line Items]
Aircraft fuel and related taxes	1,197	1,897	2,267	3,768
Salaries, wages and benefits	1,536	1,441	3,121	2,839
Maintenance, materials and repairs	302	346	606	678
Other rent and landing fees	269	289	539	574
Aircraft rent	226	214	451	430
Selling expenses	198	282	433	566
Depreciation and amortization	247	220	483	434
Special items, net	74	179	272	(37)
Other	776	763	1,534	1,512
Total regional expenses	788	804	1,516	1,562
Regional Expenses [Member]
Regional Expenses [Line Items]
Aircraft fuel and related taxes	349	535	660	1,035
Salaries, wages and benefits	293	288	585	567
Capacity purchases from third-party regional carriers	409	371	787	722
Maintenance, materials and repairs	88	82	162	169
Other rent and landing fees	122	105	230	202
Aircraft rent	8	9	17	18
Selling expenses	89	87	165	159
Depreciation and amortization	61	50	118	103
Special items, net	10	2	18	6
Other	128	128	277	270
Total regional expenses	1,557	1,657	3,019	3,251
Regional Expenses [Member] | American Airlines, Inc. [Member]
Regional Expenses [Line Items]
Aircraft fuel and related taxes	184	270	344	523
Salaries, wages and benefits	33	27	64	46
Capacity purchases from third-party regional carriers	309	317	601	618
Other rent and landing fees	71	61	135	116
Selling expenses	42	40	78	76
Depreciation and amortization	45	37	87	74
Special items, net	1	1	4	2
Other	103	51	203	107
Total regional expenses	$ 788	$ 804	$ 1,516	$ 1,562