Regional Expenses - Components of Regional Expenses (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Regional Expenses [Line Items]
Aircraft fuel and related taxes	$ 1,593	$ 2,829	$ 4,912	$ 8,370
Salaries, wages and benefits	2,404	2,137	7,141	6,419
Maintenance, materials and repairs	456	529	1,452	1,528
Other rent and landing fees	432	431	1,290	1,297
Aircraft rent	308	306	941	937
Selling expenses	366	393	1,051	1,196
Depreciation and amortization	336	334	1,013	960
Special items, net	163	221	610	335
Other	1,131	1,031	3,278	3,140
Total regional expenses	1,518	1,668	4,536	4,919
American Airlines, Inc. [Member]
Regional Expenses [Line Items]
Aircraft fuel and related taxes	1,065	1,894	3,332	5,662
Salaries, wages and benefits	1,563	1,412	4,684	4,251
Maintenance, materials and repairs	261	353	868	1,031
Other rent and landing fees	286	279	825	853
Aircraft rent	225	211	676	641
Selling expenses	256	278	688	844
Depreciation and amortization	245	230	728	664
Special items, net	77	164	350	127
Other	790	746	2,323	2,258
Total regional expenses	803	790	2,318	2,352
Regional Expenses [Member]
Regional Expenses [Line Items]
Aircraft fuel and related taxes	310	538	970	1,573
Salaries, wages and benefits	296	283	881	850
Capacity purchases from third-party regional carriers	399	380	1,172	1,102
Maintenance, materials and repairs	78	94	241	263
Other rent and landing fees	126	109	354	311
Aircraft rent	8	9	25	26
Selling expenses	87	79	252	238
Depreciation and amortization	62	52	181	156
Special items, net	2	2	20	7
Other	150	122	440	393
Total regional expenses	1,518	1,668	4,536	4,919
Regional Expenses [Member] | American Airlines, Inc. [Member]
Regional Expenses [Line Items]
Aircraft fuel and related taxes	166	264	510	787
Salaries, wages and benefits	36	25	100	71
Capacity purchases from third-party regional carriers	371	327	1,067	970
Other rent and landing fees	77	61	212	177
Selling expenses	44	40	122	116
Depreciation and amortization	47	36	134	110
Special items, net	1	2	4	4
Other	61	35	169	117
Total regional expenses	$ 803	$ 790	$ 2,318	$ 2,352