Commitments and Contingencies - Employees Under Collective Bargaining Agreements (Details)	Dec. 31, 2021 employee
Other Commitments [Line Items]
Approximate number of employees	83,000
Delta Pilots - Represented by Unions
Other Commitments [Line Items]
Approximate number of employees	13,180
Delta Flight Superintendents (Dispatchers) - Represented by Unions
Other Commitments [Line Items]
Approximate number of employees	380
Endeavor Air Pilots - Represented by Unions
Other Commitments [Line Items]
Approximate number of employees	1,900
Endeavor Air Flight Attendants - Represented by Unions
Other Commitments [Line Items]
Approximate number of employees	1,480