Financial Information for Subsidiary Guarantors and Non-guarantor Subsidiaries - Consolidating Statement of Operations (Detail) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Operating revenues:
Mainline passenger									$ 29,037	$ 30,802	$ 20,218
Regional passenger									6,475	6,322	3,131
Cargo									760	875	685
Other									4,718	4,651	2,709
Total operating revenues	$ 9,630	$ 10,706	$ 10,827	$ 9,827	$ 10,160	$ 11,139	$ 11,355	$ 9,995	40,990	42,650	26,743
Operating expenses:
Aircraft fuel and related taxes									6,226	10,592	7,839
Salaries, wages and benefits									9,524	8,508	5,460
Regional expenses									5,983	6,516	3,326
Maintenance, materials and repairs									1,889	2,051	1,260
Other rent and landing fees									1,731	1,727	1,152
Aircraft rent									1,250	1,250	768
Selling expenses									1,394	1,544	1,158
Depreciation and amortization									1,364	1,295	853
Special items, net	2,000				507				1,051	800	559
Other									4,374	4,118	2,969
Total operating expenses	8,562	8,707	8,906	8,611	9,300	9,879	9,956	9,265	34,786	38,401	25,344
Operating income (loss)	1,068	1,999	1,921	1,216	860	1,260	1,399	730	6,204	4,249	1,399
Nonoperating income (expense):
Interest income									39	31	20
Interest expense, net									(880)	(887)	(856)
Other, net									(747)	(181)	(88)
Total nonoperating expense, net									(1,588)	(1,037)	(924)
Income (loss) before income taxes									4,616	3,212	(2,180)
Income tax provision (benefit)									(2,994)	330	(346)
Net income (loss)	3,281	1,693	1,704	932	597	942	864	480	7,610	2,882	(1,834)
American Airlines, Inc. [Member]
Operating revenues:
Mainline passenger									29,037	30,802	20,218
Regional passenger									6,475	6,322	3,131
Cargo									760	875	685
Other									4,812	4,764	2,667
Total operating revenues	9,660	10,733	10,849	9,842	10,197	11,169	11,382	10,015	41,084	42,763	26,701
Operating expenses:
Aircraft fuel and related taxes									6,226	10,592	7,839
Salaries, wages and benefits									9,514	8,499	5,452
Regional expenses									6,098	6,564	3,293
Maintenance, materials and repairs									1,889	2,051	1,260
Other rent and landing fees									1,731	1,727	1,152
Aircraft rent									1,250	1,250	768
Selling expenses									1,394	1,544	1,158
Depreciation and amortization									1,364	1,301	853
Special items, net	2,500				495				1,051	783	559
Other									4,378	4,186	3,007
Total operating expenses	8,596	8,730	8,928	8,641	9,357	9,905	9,986	9,249	34,895	38,497	25,341
Operating income (loss)	1,064	2,003	1,921	1,201	840	1,264	1,396	766	6,189	4,266	1,360
Nonoperating income (expense):
Interest income									49	32	20
Interest expense, net									(796)	(847)	(727)
Other, net									(774)	(183)	(84)
Total nonoperating expense, net									(1,521)	(998)	(791)
Income (loss) before income taxes									4,668	3,268	(2,071)
Income tax provision (benefit)									(3,452)	320	(354)
Net income (loss)	$ 4,397	$ 1,450	$ 1,465	$ 808	$ 597	$ 954	$ 870	$ 527	8,120	2,948	$ (1,717)
Reportable Legal Entities [Member] | American Airlines Group (Parent Company Only) [Member]
Operating expenses:
Special items, net										18
Other									4	6
Total operating expenses									4	24
Operating income (loss)									(4)	(24)
Nonoperating income (expense):
Interest income									6	9
Interest expense, net									(99)	(51)
Equity in earnings of subsidiaries									7,624	3,008
Other, net									22	(53)
Total nonoperating expense, net									7,553	2,913
Income (loss) before income taxes									7,549	2,889
Income tax provision (benefit)									(61)	7
Net income (loss)									7,610	2,882
Reportable Legal Entities [Member] | American Airlines, Inc. [Member]
Operating revenues:
Mainline passenger									29,037	30,802
Regional passenger									6,475	6,322
Cargo									760	875
Other									4,812	4,764
Total operating revenues									41,084	42,763
Operating expenses:
Aircraft fuel and related taxes									6,226	10,592
Salaries, wages and benefits									9,514	8,499
Regional expenses									6,098	6,564
Maintenance, materials and repairs									1,889	2,051
Other rent and landing fees									1,731	1,727
Aircraft rent									1,250	1,250
Selling expenses									1,394	1,544
Depreciation and amortization									1,364	1,301
Special items, net									1,051	783
Other									4,378	4,186
Total operating expenses									34,895	38,497
Operating income (loss)									6,189	4,266
Nonoperating income (expense):
Interest income									49	32
Interest expense, net									(796)	(847)
Other, net									(774)	(183)
Total nonoperating expense, net									(1,521)	(998)
Income (loss) before income taxes									4,668	3,268
Income tax provision (benefit)									(3,452)	320
Net income (loss)									8,120	2,948
Reportable Legal Entities [Member] | Non-Guarantor Subsidiaries [Member]
Operating revenues:
Other									2,742	3,278
Total operating revenues									2,742	3,278
Operating expenses:
Salaries, wages and benefits									783	782
Maintenance, materials and repairs									304	352
Other rent and landing fees									44	32
Aircraft rent									151	94
Depreciation and amortization									44	40
Special items, net									7	18
Other									1,390	1,951
Total operating expenses									2,723	3,269
Operating income (loss)									19	9
Nonoperating income (expense):
Interest income									9	2
Interest expense, net									(10)	(1)
Other, net									1	2
Total nonoperating expense, net										3
Income (loss) before income taxes									19	12
Income tax provision (benefit)									(23)	16
Net income (loss)									42	(4)
Eliminations and Reclassifications [Member]
Operating revenues:
Other									(2,836)	(3,391)
Total operating revenues									(2,836)	(3,391)
Operating expenses:
Salaries, wages and benefits									(773)	(773)
Regional expenses									(115)	(48)
Maintenance, materials and repairs									(304)	(352)
Other rent and landing fees									(44)	(32)
Aircraft rent									(151)	(94)
Depreciation and amortization									(44)	(46)
Special items, net									(7)	(19)
Other									(1,398)	(2,025)
Total operating expenses									(2,836)	(3,389)
Operating income (loss)										(2)
Nonoperating income (expense):
Interest income									(25)	(12)
Interest expense, net									25	12
Equity in earnings of subsidiaries									(7,624)	(3,008)
Other, net									4	53
Total nonoperating expense, net									(7,620)	(2,955)
Income (loss) before income taxes									(7,620)	(2,957)
Income tax provision (benefit)									542	(13)
Net income (loss)									$ (8,162)	$ (2,944)