v3.19.1
Regional Expenses (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Regional Expenses [Line Items]    
Aircraft fuel and related taxes $ 1,726 $ 1,763
Salaries, wages and benefits 3,090 3,017
Maintenance, materials and repairs 561 469
Other rent and landing fees 503 467
Aircraft rent 327 309
Selling expenses 370 356
Depreciation and amortization 480 440
Other 1,251 1,261
Total regional expenses 1,763 1,698
American Airlines, Inc. [Member]    
Regional Expenses [Line Items]    
Aircraft fuel and related taxes 1,726 1,763
Salaries, wages and benefits 3,089 3,014
Maintenance, materials and repairs 561 469
Other rent and landing fees 503 467
Aircraft rent 327 309
Selling expenses 370 356
Depreciation and amortization 480 440
Other 1,251 1,261
Total regional expenses $ 1,791 1,682
Republic Airways Holdings, Inc. [Member]    
Regional Expenses [Line Items]    
Equity Method Investment, Ownership Percentage 25.00%  
Republic Airways Holdings, Inc. [Member] | American Airlines, Inc. [Member]    
Regional Expenses [Line Items]    
Equity Method Investment, Ownership Percentage 25.00%  
Regional Carrier [Member]    
Regional Expenses [Line Items]    
Aircraft fuel and related taxes $ 423 398
Salaries, wages and benefits 409 383
Capacity purchases from third-party regional carriers 340 354
Maintenance, materials and repairs 93 80
Other rent and landing fees 167 147
Aircraft rent 7 9
Selling expenses 92 85
Depreciation and amortization 79 82
Other 153 160
Total regional expenses 1,763 1,698
Regional Carrier [Member] | American Airlines, Inc. [Member]    
Regional Expenses [Line Items]    
Aircraft fuel and related taxes 423 398
Salaries, wages and benefits 80 82
Capacity purchases from third-party regional carriers 857 798
Maintenance, materials and repairs 4 2
Other rent and landing fees 160 141
Aircraft rent 7 7
Selling expenses 92 85
Depreciation and amortization 68 68
Other 100 101
Total regional expenses 1,791 1,682
Regional Carrier [Member] | Republic Airline Inc. [Member]    
Regional Expenses [Line Items]    
Capacity purchases from third-party regional carriers 143 138
Regional Carrier [Member] | Republic Airline Inc. [Member] | American Airlines, Inc. [Member]    
Regional Expenses [Line Items]    
Capacity purchases from third-party regional carriers $ 143 $ 138