v3.26.1
Accumulated Other Comprehensive Loss - Components of AOCI (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Mar. 31, 2026
Jun. 30, 2025
Mar. 31, 2025
Jun. 30, 2026
Jun. 30, 2025
Tax            
Beginning balance, tax   $ (1,657)     $ (1,657)  
Other comprehensive income (loss) before reclassifications         0  
Amounts reclassified from AOCI         (10)  
Net current-period other comprehensive income (loss)         (10)  
Ending balance, tax $ (1,667)       (1,667)  
Net of tax            
Beginning balance (4,077) (3,727) $ (4,508) $ (3,977) (3,727) $ (3,977)
Other comprehensive income (loss) before reclassifications         0  
Amounts reclassified from AOCI         32  
Total other comprehensive income, net of tax 15 17 17 18 32 35
Ending balance (3,972) (4,077) (3,870) (4,508) (3,972) (3,870)
American Airlines, Inc.            
Tax            
Beginning balance, tax   (1,765)     (1,765)  
Other comprehensive income (loss) before reclassifications         0  
Amounts reclassified from AOCI         (10)  
Net current-period other comprehensive income (loss)         (10)  
Ending balance, tax (1,775)       (1,775)  
Net of tax            
Beginning balance 8,793 9,028 7,884 8,234 9,028 8,234
Other comprehensive income (loss) before reclassifications         0  
Amounts reclassified from AOCI         32  
Total other comprehensive income, net of tax 15 17 17 18 32 35
Ending balance 9,024 8,793 8,642 7,884 9,024 8,642
Accumulated Other Comprehensive Loss            
Net of tax            
Beginning balance (4,372) (4,389) (4,547) (4,565) (4,389) (4,565)
Total other comprehensive income, net of tax 15 17 17 18    
Ending balance (4,357) (4,372) (4,530) (4,547) (4,357) (4,530)
Accumulated Other Comprehensive Loss | American Airlines, Inc.            
Net of tax            
Beginning balance (4,490) (4,507) (4,659) (4,677) (4,507) (4,677)
Total other comprehensive income, net of tax 15 17 17 18    
Ending balance (4,475) (4,490) $ (4,642) $ (4,659) (4,475) $ (4,642)
Pension, Retiree Medical and Other Postretirement Benefits            
Before tax            
Beginning balance, before tax   (2,732)     (2,732)  
Amounts reclassified from AOCI         42  
Net current-period other comprehensive income (loss)         45  
Ending balance, before tax (2,687)       (2,687)  
Net of tax            
Other comprehensive income (loss) before reclassifications         3  
Pension, Retiree Medical and Other Postretirement Benefits | American Airlines, Inc.            
Before tax            
Beginning balance, before tax   (2,742)     (2,742)  
Amounts reclassified from AOCI         42  
Net current-period other comprehensive income (loss)         45  
Ending balance, before tax (2,697)       (2,697)  
Net of tax            
Other comprehensive income (loss) before reclassifications         3  
Unrealized Loss on Investments            
Before tax            
Beginning balance, before tax   0     0  
Amounts reclassified from AOCI         0  
Net current-period other comprehensive income (loss)         (3)  
Ending balance, before tax (3)       (3)  
Net of tax            
Other comprehensive income (loss) before reclassifications         (3)  
Unrealized Loss on Investments | American Airlines, Inc.            
Before tax            
Beginning balance, before tax   $ 0     0  
Amounts reclassified from AOCI         0  
Net current-period other comprehensive income (loss)         (3)  
Ending balance, before tax $ (3)       (3)  
Net of tax            
Other comprehensive income (loss) before reclassifications         $ (3)