Regional Expenses (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Product Information [Line Items]
Aircraft fuel and related taxes	$ 535	$ 260	$ 1,035	$ 525
Salaries, wages and benefits	271	167	536	339
Capacity purchases from third-party regional carriers	371	45	722	79
Maintenance, materials and repairs	82	69	169	141
Other rent and landing fees	105	59	202	118
Aircraft rent	9	0	18	0
Selling expenses	87	35	159	71
Depreciation and amortization	50	41	103	83
Special items, net	2	1	6	3
Other	145	92	301	190
Total regional expenses	1,657	769	3,251	1,549
AA [Member]
Product Information [Line Items]
Aircraft fuel and related taxes	270	259	523	524
Salaries, wages and benefits	10	5	15	10
Capacity purchases from third-party regional carriers	316	306	616	610
Maintenance, materials and repairs	1	2	2	3
Other rent and landing fees	61	54	116	108
Selling expenses	40	34	76	71
Depreciation and amortization	37	37	74	74
Special items, net	1	0	2	0
Other	68	64	138	128
Total regional expenses	$ 804	$ 761	$ 1,562	$ 1,528