Quarterly Financial Data - Summarized Financial Data (Parenthetical) (Detail) In Millions, unless otherwise specified	1 Months Ended	12 Months Ended
Dec. 31, 2013	Dec. 31, 2014	Dec. 09, 2013
Quarterly Financial Information Disclosure [Abstract]
Distribution made to unit holders	0.7441	0.7441
Common stock withheld for required withholding taxes related to labor related claimholders	13		13

Weighted Average Number of Shares, Ratio for previous shareholders prior to Reorganization

No definition available.

Name:	aal_WeightedAverageNumberOfSharesRatioForPreviousShareholdersPriorToReorganization
Namespace Prefix:	aal_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration