COMMITMENTS AND CONTINGENCIES - Employees Under Collective Bargaining Agreements (Details)	Dec. 31, 2022 employee
Other Commitments [Line Items]
Approximate number of employees	95,000
Delta Pilots - Represented by Unions
Other Commitments [Line Items]
Approximate number of employees	15,040
Delta Flight Superintendents (Dispatchers) - Represented by Unions
Other Commitments [Line Items]
Approximate number of employees	450
Endeavor Air Pilots - Represented by Unions
Other Commitments [Line Items]
Approximate number of employees	1,750
Endeavor Air Flight Attendants - Represented by Unions
Other Commitments [Line Items]
Approximate number of employees	1,800