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Investments (Tables)
 12 Months Ended
Dec. 31, 2022
Schedule of Investments [Line Items]  
Schedule of Equity Investments
Our equity investments ownership interest and carrying value were:
Ownership InterestCarrying Value (in millions)
December 31,December 31,
Accounting Treatment2022202120222021
Republic HoldingsEquity Method25.0 %25.0 %$222 $202 
China Southern AirlinesFair Value1.5 %1.8 %176 163 
Other investments (a)
Various212 83 
Total$610 $448 
American Airlines, Inc.  
Schedule of Investments [Line Items]  
Schedule of Equity Investments
American’s equity investments ownership interest and carrying value were:
Ownership InterestCarrying Value (in millions)
December 31,December 31,
Accounting Treatment2022202120222021
Republic HoldingsEquity Method25.0 %25.0 %$222 $202 
China Southern AirlinesFair Value1.5 %1.8 %176 163 
Other investments (a)
Various212 83 
Total$610 $448