Employee Benefit Plans - Narrative (Details) - Pension Benefits $ in Millions	3 Months Ended
	Mar. 31, 2026 USD ($)
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, contributed amount	$ 236
Supplemental contributions	50
American Airlines, Inc.
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, contributed amount	236
Supplemental contributions	$ 50