Debt - 2013 Credit Facilities (Details) - USD ($) $ in Millions		12 Months Ended
	May 21, 2015	Dec. 31, 2025
Term Loan | Credit Facility 2013 | Secured Debt
Line of Credit Facility [Line Items]
Interest rate margin		2.25%
Term Loan | Credit Facility 2013 | Secured Debt | American Airlines, Inc.
Line of Credit Facility [Line Items]
Interest rate margin		2.25%
Term Loan | Credit Facility 2013 | Secured Debt | Base Rate
Line of Credit Facility [Line Items]
Floor interest rate	1.00%
Interest rate margin	1.25%
Term Loan | Credit Facility 2013 | Secured Debt | Base Rate | American Airlines, Inc.
Line of Credit Facility [Line Items]
Floor interest rate	1.00%
Interest rate margin	1.25%
Term Loan | Credit Facility 2013 | Secured Debt | Secured Overnight Financing Rate (SOFR)
Line of Credit Facility [Line Items]
Floor interest rate	0.00%
Interest rate margin	2.25%
Term Loan | Credit Facility 2013 | Secured Debt | Secured Overnight Financing Rate (SOFR) | American Airlines, Inc.
Line of Credit Facility [Line Items]
Floor interest rate	0.00%
Interest rate margin	2.25%
Revolving Credit Facility
Line of Credit Facility [Line Items]
Line of credit facility, remaining borrowing capacity		$ 3,397
Revolving Credit Facility | American Airlines, Inc.
Line of Credit Facility [Line Items]
Line of credit facility, remaining borrowing capacity		3,397
Revolving Credit Facility | Credit Facility 2013
Line of Credit Facility [Line Items]
Line of credit facility, remaining borrowing capacity		519
Revolving Credit Facility | Credit Facility 2013 | American Airlines, Inc.
Line of Credit Facility [Line Items]
Line of credit facility, remaining borrowing capacity		519
Revolving Credit Facility | Credit Facility 2013 | Secured Debt
Line of Credit Facility [Line Items]
Long-term line of credit		0
Revolving Credit Facility | Credit Facility 2013 | Secured Debt | American Airlines, Inc.
Line of Credit Facility [Line Items]
Long-term line of credit		$ 0
Revolving Credit Facility | Credit Facility 2013 | Secured Debt | Base Rate
Line of Credit Facility [Line Items]
Floor interest rate	1.00%
Revolving Credit Facility | Credit Facility 2013 | Secured Debt | Base Rate | American Airlines, Inc.
Line of Credit Facility [Line Items]
Floor interest rate	1.00%
Revolving Credit Facility | Credit Facility 2013 | Secured Debt | Base Rate | Interest Rate Margin One
Line of Credit Facility [Line Items]
Interest rate margin	2.00%
Revolving Credit Facility | Credit Facility 2013 | Secured Debt | Base Rate | Interest Rate Margin One | American Airlines, Inc.
Line of Credit Facility [Line Items]
Interest rate margin	2.00%
Revolving Credit Facility | Credit Facility 2013 | Secured Debt | Base Rate | Interest Rate Margin Two
Line of Credit Facility [Line Items]
Interest rate margin	2.25%
Revolving Credit Facility | Credit Facility 2013 | Secured Debt | Base Rate | Interest Rate Margin Two | American Airlines, Inc.
Line of Credit Facility [Line Items]
Interest rate margin	2.25%
Revolving Credit Facility | Credit Facility 2013 | Secured Debt | Base Rate | Interest Rate Margin Three
Line of Credit Facility [Line Items]
Interest rate margin	2.50%
Revolving Credit Facility | Credit Facility 2013 | Secured Debt | Base Rate | Interest Rate Margin Three | American Airlines, Inc.
Line of Credit Facility [Line Items]
Interest rate margin	2.50%
Revolving Credit Facility | Credit Facility 2013 | Secured Debt | Secured Overnight Financing Rate (SOFR)
Line of Credit Facility [Line Items]
Floor interest rate	0.00%
Revolving Credit Facility | Credit Facility 2013 | Secured Debt | Secured Overnight Financing Rate (SOFR) | American Airlines, Inc.
Line of Credit Facility [Line Items]
Floor interest rate	0.00%
Revolving Credit Facility | Credit Facility 2013 | Secured Debt | Secured Overnight Financing Rate (SOFR) | Interest Rate Margin One
Line of Credit Facility [Line Items]
Interest rate margin	3.00%
Revolving Credit Facility | Credit Facility 2013 | Secured Debt | Secured Overnight Financing Rate (SOFR) | Interest Rate Margin One | American Airlines, Inc.
Line of Credit Facility [Line Items]
Interest rate margin	3.00%
Revolving Credit Facility | Credit Facility 2013 | Secured Debt | Secured Overnight Financing Rate (SOFR) | Interest Rate Margin Two
Line of Credit Facility [Line Items]
Interest rate margin	3.25%
Revolving Credit Facility | Credit Facility 2013 | Secured Debt | Secured Overnight Financing Rate (SOFR) | Interest Rate Margin Two | American Airlines, Inc.
Line of Credit Facility [Line Items]
Interest rate margin	3.25%
Revolving Credit Facility | Credit Facility 2013 | Secured Debt | Secured Overnight Financing Rate (SOFR) | Interest Rate Margin Three
Line of Credit Facility [Line Items]
Interest rate margin	3.50%
Revolving Credit Facility | Credit Facility 2013 | Secured Debt | Secured Overnight Financing Rate (SOFR) | Interest Rate Margin Three | American Airlines, Inc.
Line of Credit Facility [Line Items]
Interest rate margin	3.50%
Letter of Credit | Credit Facility 2013 | Secured Debt
Line of Credit Facility [Line Items]
Increase to borrowing capacity	$ 100
Letter of Credit | Credit Facility 2013 | Secured Debt | American Airlines, Inc.
Line of Credit Facility [Line Items]
Increase to borrowing capacity	$ 100