Regional Expenses (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Regional Expenses [Line Items]
Aircraft fuel and related taxes	$ 1,029	$ 1,544
Salaries, wages and benefits	2,652	2,373
Maintenance, materials and repairs	419	494
Other rent and landing fees	422	408
Aircraft rent	306	317
Selling expenses	308	336
Depreciation and amortization	355	336
Special items, net	99	303
Other	1,078	1,038
Total regional expenses	1,432	1,462
American Airlines, Inc. [Member]
Regional Expenses [Line Items]
Aircraft fuel and related taxes	1,029	1,544
Salaries, wages and benefits	2,650	2,371
Maintenance, materials and repairs	419	494
Other rent and landing fees	422	408
Aircraft rent	306	317
Selling expenses	308	336
Depreciation and amortization	355	336
Special items, net	99	303
Other	1,080	1,039
Total regional expenses	1,506	1,493
Regional Carrier [Member]
Regional Expenses [Line Items]
Aircraft fuel and related taxes	219	311
Salaries, wages and benefits	326	292
Capacity purchases from third-party regional carriers	394	401
Maintenance, materials and repairs	95	75
Other rent and landing fees	128	114
Aircraft rent	9	9
Selling expenses	78	77
Depreciation and amortization	68	60
Special items, net	5	7
Other	110	116
Total regional expenses	1,432	1,462
Regional Carrier [Member] | American Airlines, Inc. [Member]
Regional Expenses [Line Items]
Aircraft fuel and related taxes	219	311
Salaries, wages and benefits	84	67
Capacity purchases from third-party regional carriers	884	803
Maintenance, materials and repairs	1	0
Other rent and landing fees	109	98
Aircraft rent	7	7
Selling expenses	78	77
Depreciation and amortization	54	46
Special items, net	5	4
Other	65	80
Total regional expenses	$ 1,506	$ 1,493