Debt - 2019-1 EETCs (Details) - American Airlines, Inc. [Member] - Enhanced Equipment Trust Certificates (EETC) [Member]	12 Months Ended
	Dec. 31, 2019 USD ($)	Aug. 31, 2019 USD ($) Aircraft	Jun. 30, 2019 USD ($)
Debt Instrument [Line Items]
Repayments of long-term debt	$ 608,000,000
Enhanced Equipment Trust Certificates 2019-1 [Member]
Debt Instrument [Line Items]
Principal amount		$ 1,100,000,000	$ 650,000,000
Number of aircraft financed by debt issuance | Aircraft		35
Repayments of long-term debt	$ 804,000,000
Number of aircrafts financed through repurchased debt | Aircraft		28
Remaining escrowed proceeds		$ 293,000,000