Basis of Presentation and Summary of Significant Accounting Policies (Narrative) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Deferred Revenue Arrangement [Line Items]
Indefinite lived intangible assets	$ 1,800	$ 708
Advertising expense	166	153	186
Foreign currency losses	56	41	17
Frequent flyer liability	3,005	1,711
Mileage Credits Sale [Member]
Deferred Revenue Arrangement [Line Items]
Frequent flyer liability	1,500	1,200
Marketing Component of Mileage Sales [Member]
Deferred Revenue Arrangement [Line Items]
Other revenues recognized for marketing component of mileage sales at the time of sale	834	725	761
Dividend Miles Program [Member]
Deferred Revenue Arrangement [Line Items]
Frequent flyer liability	932
AAdvantage Program [Member]
Deferred Revenue Arrangement [Line Items]
Frequent flyer liability	580
Relative Selling Price Approach [Member]
Deferred Revenue Arrangement [Line Items]
Other revenue recognized for American's Citibank modification	31
AA [Member]
Deferred Revenue Arrangement [Line Items]
Indefinite lived intangible assets	755	708
Advertising expense	166	153	186
Foreign currency losses	55	41	17
Frequent flyer liability	1,760	1,711
AA [Member] | Mileage Credits Sale [Member]
Deferred Revenue Arrangement [Line Items]
Frequent flyer liability		1,200
AA [Member] | Marketing Component of Mileage Sales [Member]
Deferred Revenue Arrangement [Line Items]
Other revenues recognized for marketing component of mileage sales at the time of sale	816	725	761
AA [Member] | AAdvantage Program [Member]
Deferred Revenue Arrangement [Line Items]
Frequent flyer liability	580
AA [Member] | Relative Selling Price Approach [Member]
Deferred Revenue Arrangement [Line Items]
Other revenue recognized for American's Citibank modification	$ 31