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Valuation and Qualifying Accounts
 12 Months Ended
Dec. 31, 2022
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]  
Valuation and Qualifying Accounts Valuation and Qualifying Accounts (in millions)
Balance at Beginning of YearAdditions Charged to Statement of Operations AccountsDeductionsBalance at
End of Year
Allowance for obsolescence of spare parts
Year ended December 31, 2022$634 $96 $(114)$616 
Year ended December 31, 2021490 177 (33)634 
Year ended December 31, 2020784 100 (394)490 
American Airlines, Inc.  
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]  
Valuation and Qualifying Accounts Valuation and Qualifying Accounts (in millions)
Balance at Beginning of YearAdditions Charged to Statement of Operations AccountsDeductionsBalance at
End of Year
Allowance for obsolescence of spare parts
Year ended December 31, 2022$588 $82 $(104)$566 
Year ended December 31, 2021442 165 (19)588 
Year ended December 31, 2020729 81 (368)442