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Subsequent Event (Details) - Boeing 737 Max - Subsequent Event
Jan. 31, 2022
aircraft
Subsequent Event [Line Items]  
Number of aircraft to be purchased through the conversion of existing purchase option 23
Number of aircraft to be purchased through exercising of purchase option 7
Additional number of aircrafts to be purchased 30
Number of aircraft, deferrable, scheduled to be delivered in 2023 15
Number of aircraft, deferrable, scheduled to be delivered in 2024 15
American Airlines, Inc.  
Subsequent Event [Line Items]  
Number of aircraft to be purchased through the conversion of existing purchase option 23
Number of aircraft to be purchased through exercising of purchase option 7
Additional number of aircrafts to be purchased 30
Number of aircraft, deferrable, scheduled to be delivered in 2023 15
Number of aircraft, deferrable, scheduled to be delivered in 2024 15