Debt - 11.75% Secured Senior Notes (Details) - American Airlines, Inc. - Senior Notes 11.75% Due 2025 - Senior Notes - USD ($)	1 Months Ended	3 Months Ended
	Jun. 30, 2020	Dec. 31, 2023
Debt Instrument [Line Items]
Fixed interest rate per annum	11.75%
Aggregate principal issued	$ 2,500,000,000
Long term debt, price, percentage of par value	99.00%
Payment of make-whole premium		$ 186,000,000
Write-off of unamortized debt issuance costs and debt discount		$ 19,000,000