Employee Benefit Plans - Additional Information (Details) - USD ($) $ in Millions		1 Months Ended	2 Months Ended	12 Months Ended
	Jun. 14, 2019	Jan. 31, 2026	Feb. 18, 2026	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Mar. 29, 2019
Defined Benefit Plan Disclosure [Line Items]
Estimated period of liquidation of underlying assets				10 years
Defined benefit plan master trust future funding commitments				$ 1,000
Defined benefit plan master trust future funding commitments, period				7 years
Contributions to defined contribution benefit plans				$ 1,600	$ 1,400	$ 1,100
Deferred Profit Sharing
Defined Benefit Plan Disclosure [Line Items]
Funded percentage				10.00%
Funded adjusted pre-tax earnings, maximum				$ 2,500
Percentage of earnings above threshold				20.00%
Profit sharing program, amount accrued				$ 55
Subsequent Event
Defined Benefit Plan Disclosure [Line Items]
Weighted average expected rate of return on plan assets			7.30%
Defined benefit plan, assumptions used for expected long-term rate of return on plan assets, term			10 years
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Weighted average expected rate of return on plan assets				7.75%	8.00%	8.00%
Minimum required employer contributions, next fiscal year				$ 238
Payments of required contributions				224	$ 285
Pension Benefits | Subsequent Event
Defined Benefit Plan Disclosure [Line Items]
Payments of required contributions		$ 236
Supplemental contributions by employer		50
International Association of Machinists & Aerospace Workers (IAM) National Pension Fund | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Contribution to multiemployer plan by employer, individually significant				$ 63	57	$ 52
Total contributions as reported on Form 5500					$ 640
Contributions to multiemployer plan by company, percentage of total contributions to plan (more than)					5.00%	5.00%
Multiemployer plan, funded status percentage (over)							80.00%
Rehabilitation plan, percentage increase in company annual contributions	2.50%
American Airlines, Inc.
Defined Benefit Plan Disclosure [Line Items]
Estimated period of liquidation of underlying assets				10 years
Defined benefit plan master trust future funding commitments				$ 1,000
Defined benefit plan master trust future funding commitments, period				7 years
Contributions to defined contribution benefit plans				$ 1,600	$ 1,400	$ 1,100
American Airlines, Inc. | Deferred Profit Sharing
Defined Benefit Plan Disclosure [Line Items]
Funded percentage				10.00%
Funded adjusted pre-tax earnings, maximum				$ 2,500
Percentage of earnings above threshold				20.00%
Profit sharing program, amount accrued				$ 55
American Airlines, Inc. | Subsequent Event
Defined Benefit Plan Disclosure [Line Items]
Weighted average expected rate of return on plan assets			7.30%
Defined benefit plan, assumptions used for expected long-term rate of return on plan assets, term			10 years
American Airlines, Inc. | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Weighted average expected rate of return on plan assets				7.75%	8.00%	8.00%
Minimum required employer contributions, next fiscal year				$ 236
Payments of required contributions				221	$ 280
American Airlines, Inc. | Pension Benefits | Subsequent Event
Defined Benefit Plan Disclosure [Line Items]
Payments of required contributions		236
Supplemental contributions by employer		$ 50
American Airlines, Inc. | International Association of Machinists & Aerospace Workers (IAM) National Pension Fund | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Contribution to multiemployer plan by employer, individually significant				$ 63	57	$ 52
Total contributions as reported on Form 5500					$ 640
Contributions to multiemployer plan by company, percentage of total contributions to plan (more than)					5.00%	5.00%
Multiemployer plan, funded status percentage (over)							80.00%
Rehabilitation plan, percentage increase in company annual contributions	2.50%