Cover - shares	3 Months Ended
	Mar. 31, 2021	Apr. 16, 2021
Document Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2021
Document Transition Report	false
Entity File Number	1-8400
Entity Registrant Name	American Airlines Group Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	75-1825172
Entity Address, Address Line One	1 Skyview Drive,
Entity Address, City or Town	Fort Worth,
Entity Address, State or Province	TX
Entity Address, Postal Zip Code	76155
City Area Code	(682)
Local Phone Number	278-9000
Title of 12(b) Security	Common Stock, $0.01 par value per share
Trading Symbol	AAL
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		641,383,123
Entity Central Index Key	0000006201
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q1
Amendment Flag	false
American Airlines, Inc.
Document Information [Line Items]
Entity File Number	1-2691
Entity Registrant Name	American Airlines, Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	13-1502798
Entity Address, Address Line One	1 Skyview Drive,
Entity Address, City or Town	Fort Worth,
Entity Address, State or Province	TX
Entity Address, Postal Zip Code	76155
City Area Code	(682)
Local Phone Number	278-9000
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		1,000
Entity Central Index Key	0000004515