Debt - 2014 Credit Facilities (Details) - USD ($)			1 Months Ended
	Dec. 31, 2024	Jun. 04, 2024	Mar. 31, 2023	Jun. 03, 2024
Line of Credit Facility [Line Items]
Covenant terms, minimum aggregate liquidity required	$ 2,000,000,000.0
Credit Facility 2014 | Base Rate | American Airlines, Inc.
Line of Credit Facility [Line Items]
Floor interest rate			1.00%
Interest rate margin			0.75%
Credit Facility 2014 | Secured Overnight Financing Rate (SOFR) | American Airlines, Inc.
Line of Credit Facility [Line Items]
Floor interest rate			0.00%
Interest rate margin			1.75%
Term Loan | Credit Facility 2014 | Base Rate
Line of Credit Facility [Line Items]
Floor interest rate			1.00%
Interest rate margin			0.75%
Term Loan | Credit Facility 2014 | Secured Overnight Financing Rate (SOFR)
Line of Credit Facility [Line Items]
Floor interest rate			0.00%
Interest rate margin	1.75%		1.75%
Term Loan | Credit Facility 2014 | Secured Overnight Financing Rate (SOFR) | American Airlines, Inc.
Line of Credit Facility [Line Items]
Interest rate margin	1.75%
Revolving Credit Facility | Credit Facility 2014 | Secured Debt
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity		$ 1,500,000,000
Covenant terms, minimum aggregate liquidity required		2,000,000,000		$ 2,200,000,000
Restricted payments liquidity requirement		4,000,000,000		4,200,000,000
Long-term line of credit	$ 0
Revolving Credit Facility | Credit Facility 2014 | Secured Debt | American Airlines, Inc.
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity		1,500,000,000
Covenant terms, minimum aggregate liquidity required		2,000,000,000		2,200,000,000
Restricted payments liquidity requirement		$ 4,000,000,000		$ 4,200,000,000
Long-term line of credit	$ 0
Revolving Credit Facility | Credit Facility 2014 | Base Rate
Line of Credit Facility [Line Items]
Floor interest rate		1.00%
Revolving Credit Facility | Credit Facility 2014 | Base Rate | American Airlines, Inc.
Line of Credit Facility [Line Items]
Floor interest rate		1.00%
Revolving Credit Facility | Credit Facility 2014 | Base Rate | Interest Rate Margin One
Line of Credit Facility [Line Items]
Interest rate margin		2.00%
Revolving Credit Facility | Credit Facility 2014 | 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 2014 | Base Rate | Interest Rate Margin Two
Line of Credit Facility [Line Items]
Interest rate margin		2.25%
Revolving Credit Facility | Credit Facility 2014 | 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 2014 | Base Rate | Interest Rate Margin Three
Line of Credit Facility [Line Items]
Interest rate margin		2.50%
Revolving Credit Facility | Credit Facility 2014 | 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 2014 | Secured Overnight Financing Rate (SOFR)
Line of Credit Facility [Line Items]
Floor interest rate		0.00%
Revolving Credit Facility | Credit Facility 2014 | Secured Overnight Financing Rate (SOFR) | American Airlines, Inc.
Line of Credit Facility [Line Items]
Interest rate margin		0.00%
Revolving Credit Facility | Credit Facility 2014 | 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 2014 | 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 2014 | 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 2014 | 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 2014 | 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 2014 | 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 2014 | Secured Debt
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity		$ 200,000,000
Letter of Credit | Credit Facility 2014 | Secured Debt | American Airlines, Inc.
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity		$ 200,000,000