v3.26.1
Special Items, Net (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Restructuring Cost and Reserve [Line Items]        
Mark-to-market adjustments on equity investments, net $ 18 $ (14) $ 90 $ 15
Debt refinancing and extinguishment 10 0 63 19
Other nonoperating special items, net 2 (2) 11 (2)
Nonoperating special items, net 30 (16) 164 32
American Airlines, Inc.        
Restructuring Cost and Reserve [Line Items]        
Mark-to-market adjustments on equity investments, net 18 (14) 90 15
Debt refinancing and extinguishment 10 0 63 19
Other nonoperating special items, net 2 (2) 11 (2)
Nonoperating special items, net 30 (16) 164 32
Mainline operating special items, net        
Restructuring Cost and Reserve [Line Items]        
Litigation reserve adjustments 0 47 12 77
Labor contract expenses 0 0 2 31
Other operating special items, net 7 0 7 10
Mainline operating special items, net 7 47 21 118
Mainline operating special items, net | American Airlines, Inc.        
Restructuring Cost and Reserve [Line Items]        
Litigation reserve adjustments 0 47 12 77
Labor contract expenses 0 0 2 31
Other operating special items, net 7 0 7 10
Mainline operating special items, net $ 7 $ 47 $ 21 $ 118