Debt - EETCs (Details) - American Airlines, Inc. - Enhanced Equipment Trust Certificates (EETC) - Enhanced Equipment Trust Certificates 2021-1 $ in Millions	12 Months Ended
	Dec. 31, 2022 USD ($) aircraft	Dec. 31, 2021 USD ($)	Nov. 30, 2021 USD ($) aircraft
Debt Instrument [Line Items]
Aggregate principal issued | $			$ 960
Number of aircraft financed by debt issuance | aircraft			26
Repayments of long-term debt | $	$ 866	$ 94
Number of aircrafts financed through repurchased debt | aircraft	21