Commitments and Contingencies (Narrative 1) (Details)	Jun. 30, 2013
Commitments and Contingencies Disclosure [Abstract]
Entity Number of Employees	79,600
Percentage Of Employees Represented By Unions Under Collective Bargaining Agreements	18.00%

Percentage Of Employees Represented By Unions Under Collective Bargaining Agreements

No definition available.

Name:	dal_PercentageOfEmployeesRepresentedByUnionsUnderCollectiveBargainingAgreements
Namespace Prefix:	dal_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant