v3.26.1
Debt - Narrative (Details)
$ in Millions
 1 Months Ended 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2026
USD ($)
pass_through_trust
May 31, 2026
USD ($)
pass_through_trust
aircraft
Mar. 31, 2026
USD ($)
Feb. 28, 2026
Nov. 30, 2025
USD ($)
aircraft
pass_through_trust
Jun. 30, 2026
USD ($)
Jun. 30, 2026
USD ($)
aircraft
Jun. 30, 2025
USD ($)
Dec. 31, 2025
USD ($)
aircraft
Debt Instrument [Line Items]                  
Proceeds from issuance of long-term debt             $ 4,518 $ 1,659  
Revolving Credit Facility                  
Debt Instrument [Line Items]                  
Line of credit facility, available borrowing capacity $ 3,510         $ 3,510 3,510    
American Airlines, Inc.                  
Debt Instrument [Line Items]                  
Proceeds from issuance of long-term debt             4,518 $ 1,659  
American Airlines, Inc. | Revolving Credit Facility                  
Debt Instrument [Line Items]                  
Line of credit facility, available borrowing capacity 3,510         3,510 3,510    
Enhanced Equipment Trust Certificates (EETC) | American Airlines, Inc.                  
Debt Instrument [Line Items]                  
Repayments of long-term debt             310    
Secured Debt                  
Debt Instrument [Line Items]                  
Long-term debt 24,819         24,819 24,819   $ 24,219
Secured Debt | American Airlines, Inc.                  
Debt Instrument [Line Items]                  
Long-term debt 24,819         24,819 24,819   24,219
Other Revolving Facility | American Airlines, Inc. | Revolving Credit Facility                  
Debt Instrument [Line Items]                  
Line of credit facility, aggregate commitments 350         350 350    
Other Revolving Facility | Secured Debt | American Airlines, Inc. | Revolving Credit Facility                  
Debt Instrument [Line Items]                  
Amount drawn             0    
Cargo Receivable Facility | American Airlines, Inc. | Revolving Credit Facility                  
Debt Instrument [Line Items]                  
Line of credit facility, available borrowing capacity 50         50 50    
2013 Revolving Facility | Revolving Credit Facility                  
Debt Instrument [Line Items]                  
Line of credit facility, available borrowing capacity 363         363 363    
2013 Revolving Facility | American Airlines, Inc. | Revolving Credit Facility                  
Debt Instrument [Line Items]                  
Line of credit facility, available borrowing capacity 363         363 363    
2013 Revolving Facility | Line of Credit | American Airlines, Inc. | Revolving Credit Facility                  
Debt Instrument [Line Items]                  
Line of credit facility, aggregate commitments 363   $ 363     363 363    
2013 Revolving Facility | Line of Credit | American Airlines, Inc. | Letter of Credit                  
Debt Instrument [Line Items]                  
Line of credit facility, aggregate commitments 155   155     155 155    
2013 Revolving Facility | Secured Debt                  
Debt Instrument [Line Items]                  
Long-term debt 960         960 960   970
2013 Revolving Facility | Secured Debt | American Airlines, Inc.                  
Debt Instrument [Line Items]                  
Long-term debt 960         960 960   970
2014 Revolving Facility | Revolving Credit Facility                  
Debt Instrument [Line Items]                  
Line of credit facility, available borrowing capacity 1,296         1,296 1,296    
2014 Revolving Facility | American Airlines, Inc. | Revolving Credit Facility                  
Debt Instrument [Line Items]                  
Line of credit facility, available borrowing capacity 1,296         1,296 1,296    
2014 Revolving Facility | Line of Credit | American Airlines, Inc. | Revolving Credit Facility                  
Debt Instrument [Line Items]                  
Line of credit facility, aggregate commitments     1,300            
2014 Revolving Facility | Line of Credit | American Airlines, Inc. | Letter of Credit                  
Debt Instrument [Line Items]                  
Line of credit facility, aggregate commitments     195            
2014 Revolving Facility | Secured Debt                  
Debt Instrument [Line Items]                  
Long-term debt 1,850         1,850 1,850   1,159
2014 Revolving Facility | Secured Debt | American Airlines, Inc.                  
Debt Instrument [Line Items]                  
Long-term debt 1,850         1,850 1,850   1,159
Credit Facility 2014 - Term Loans | Line of Credit | American Airlines, Inc. | Secured Debt                  
Debt Instrument [Line Items]                  
Annual principal payment, percentage   1.00%              
Credit Facility 2014 - Term Loans | Line of Credit | American Airlines, Inc. | Base Rate | Secured Debt                  
Debt Instrument [Line Items]                  
Floor interest rate   0.00%              
Debt instrument, basis spread on variable rate, interest rate margin   2.00%              
Credit Facility 2014 - Term Loans | Line of Credit | American Airlines, Inc. | SOFR | Secured Debt                  
Debt Instrument [Line Items]                  
Floor interest rate   0.00%              
Debt instrument, basis spread on variable rate, interest rate margin   3.00%              
2026 Refinancing Term Loans | Line of Credit | American Airlines, Inc. | Secured Debt                  
Debt Instrument [Line Items]                  
Aggregate principal issued   $ 1,100              
2026 Incremental Term Loans | Line of Credit | American Airlines, Inc. | Secured Debt                  
Debt Instrument [Line Items]                  
Aggregate principal issued   703              
2023 Revolving Facility | Revolving Credit Facility                  
Debt Instrument [Line Items]                  
Line of credit facility, available borrowing capacity 1,451         1,451 1,451    
2023 Revolving Facility | American Airlines, Inc. | Revolving Credit Facility                  
Debt Instrument [Line Items]                  
Line of credit facility, available borrowing capacity 1,451         1,451 1,451    
2023 Revolving Facility | Line of Credit | American Airlines, Inc. | Revolving Credit Facility                  
Debt Instrument [Line Items]                  
Line of credit facility, aggregate commitments     $ 1,500            
2023 Revolving Facility | Secured Debt                  
Debt Instrument [Line Items]                  
Long-term debt 1,078         1,078 1,078   1,078
2023 Revolving Facility | Secured Debt | American Airlines, Inc.                  
Debt Instrument [Line Items]                  
Long-term debt 1,078         1,078 1,078   1,078
AAdvantage Term Loan Facility, Fourth Amendment | Line of Credit | American Airlines, Inc. | Base Rate | Secured Debt                  
Debt Instrument [Line Items]                  
Floor interest rate       0.00%          
Debt instrument, basis spread on variable rate, interest rate margin       1.75%          
AAdvantage Term Loan Facility, Fourth Amendment | Line of Credit | American Airlines, Inc. | SOFR | Secured Debt                  
Debt Instrument [Line Items]                  
Floor interest rate       0.00%          
Debt instrument, basis spread on variable rate, interest rate margin       2.75%          
2026-1 Class (B)R Aircraft Enhanced Equipment Trust Certificate ("EETCs") | Enhanced Equipment Trust Certificates (EETC) | American Airlines, Inc.                  
Debt Instrument [Line Items]                  
Fixed interest rate per annum     5.61%            
Proceeds from issuance of long-term debt     $ 870            
2025-1 Aircraft Enhanced Equipment Trust Certificate ("EETCs") | Enhanced Equipment Trust Certificates (EETC) | American Airlines, Inc.                  
Debt Instrument [Line Items]                  
Aggregate principal issued         $ 1,100        
Number of pass through trusts | pass_through_trust         2        
Number of aircraft delivered or to be delivered | aircraft         25        
Proceeds from issuance of long-term debt             $ 127   $ 978
Number of aircrafts financed | aircraft             4   21
2026-1 Aircraft Enhanced Equipment Trust Certificate ("EETCs") | Enhanced Equipment Trust Certificates (EETC) | American Airlines, Inc.                  
Debt Instrument [Line Items]                  
Aggregate principal issued   $ 1,100              
Number of pass through trusts | pass_through_trust   2              
Number of aircraft delivered or to be delivered | aircraft   32              
Proceeds from issuance of long-term debt   $ 973              
Number of aircrafts financed | aircraft   29              
Remaining escrowed proceeds   $ 168              
2026 Engine Enhanced Equipment Trust Certificate ("EETCs") | Enhanced Equipment Trust Certificates (EETC) | American Airlines, Inc.                  
Debt Instrument [Line Items]                  
Aggregate principal issued $ 567         $ 567 $ 567    
Number of pass through trusts | pass_through_trust 2                
2026 Engine Enhanced Equipment Trust Certificate ("EETCs") | Enhanced Equipment Trust Certificates (EETC) | American Airlines, Inc. | Minimum                  
Debt Instrument [Line Items]                  
Fixed interest rate per annum 5.46%         5.46% 5.46%    
2026 Engine Enhanced Equipment Trust Certificate ("EETCs") | Enhanced Equipment Trust Certificates (EETC) | American Airlines, Inc. | Maximum                  
Debt Instrument [Line Items]                  
Fixed interest rate per annum 6.04%         6.04% 6.04%    
2019-1 Engine Enhanced Equipment Trust Certificate | Enhanced Equipment Trust Certificates (EETC) | American Airlines, Inc.                  
Debt Instrument [Line Items]                  
Aggregate principal issued $ 339         $ 339 $ 339    
Long-term debt 228         228 228    
Senior short-term term loan facility | American Airlines, Inc. | Unsecured Debt                  
Debt Instrument [Line Items]                  
Prepayment of short-term term loan facility           629 629    
8.50% Senior Notes | Secured Debt                  
Debt Instrument [Line Items]                  
Fixed interest rate per annum                 8.50%
Long-term debt $ 0         $ 0 $ 0   $ 1,000
8.50% Senior Notes | Secured Debt | American Airlines, Inc.                  
Debt Instrument [Line Items]                  
Fixed interest rate per annum 8.50%         8.50% 8.50%   8.50%
Long-term debt $ 0         $ 0 $ 0   $ 1,000
Repayments of long-term debt           $ 1,000 1,000    
Equipment Loans and Other Notes Payable Issued in Current Year | Secured Debt | American Airlines, Inc.                  
Debt Instrument [Line Items]                  
Proceeds from issuance of long-term debt             $ 150    
Average interest rate 4.31%         4.31% 4.31%