Basis of Presentation (Reclassification) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Operating revenues
Mainline passenger	$ 7,258	$ 4,614
Regional passenger	1,407	679
Cargo	206	156
Other	1,124	649
Total operating revenues	9,995	6,098
Operating expenses
Aircraft fuel and related taxes	2,711	1,934
Salaries, wages and benefits	2,119	1,267
Regional expenses	1,594	780
Maintenance, materials and repairs	485	326
Other rent and landing fees	424	288
Aircraft rent	320	165
Selling expenses	401	290
Depreciation and amortization	307	204
Special items, net	(137)	71
Other	1,041	702
Total operating expenses	9,265	6,027
Operating income	730	71
Nonoperating income (expense)
Interest income	7	4
Interest expense, net	(243)	(254)
Other, net	(1)	(24)
Total nonoperating expense, net	(237)	(274)
Historical [Member]
Operating revenues
Mainline passenger		4,614
Regional passenger		679
Cargo		155
Other		650
Total operating revenues		6,098
Operating expenses
Aircraft fuel and related taxes		2,200
Salaries, wages and benefits		1,484
Regional expenses		0
Maintenance, materials and repairs		383
Other rent and landing fees		346
Aircraft rent		164
Selling expenses		276
Depreciation and amortization		246
Special items, net		28
Other		919
Total operating expenses		6,046
Operating income		52
Nonoperating income (expense)
Interest income		4
Interest expense, net		(250)
Other, net		(9)
Total nonoperating expense, net		(255)
AA [Member]
Operating revenues
Mainline passenger	4,906	4,614
Regional passenger	669	679
Cargo	168	156
Other	726	636
Total operating revenues	6,469	6,085
Operating expenses
Aircraft fuel and related taxes	1,871	1,934
Salaries, wages and benefits	1,398	1,264
Regional expenses	758	766
Maintenance, materials and repairs	332	326
Other rent and landing fees	285	287
Aircraft rent	216	165
Selling expenses	284	290
Depreciation and amortization	214	204
Special items, net	(216)	71
Other	749	712
Total operating expenses	5,891	6,019
Operating income	578	66
Nonoperating income (expense)
Interest income	7	4
Interest expense, net	(168)	(169)
Other, net	(5)	(24)
Total nonoperating expense, net	(166)	(189)
AA [Member] | Historical [Member]
Operating revenues
Mainline passenger		4,614
Regional passenger		679
Cargo		155
Other		637
Total operating revenues		6,085
Operating expenses
Aircraft fuel and related taxes		2,199
Salaries, wages and benefits		1,312
Regional expenses		269
Maintenance, materials and repairs		318
Other rent and landing fees		342
Aircraft rent		164
Selling expenses		276
Depreciation and amortization		241
Special items, net		28
Other		889
Total operating expenses		6,038
Operating income		47
Nonoperating income (expense)
Interest income		4
Interest expense, net		(165)
Other, net		(9)
Total nonoperating expense, net		$ (170)