A double clutch transmission comprising two clutches each having an input side connected to a drive shaft and an output side connected to one of two transmission input shafts coaxially arranged with respect to one another. At least two countershafts, on which toothed idler gearwheels are pivotally supported and toothed fixed gearwheels are disposed on both transmission input shafts in a rotationally fixed manner and mesh with at least some of the idler gearwheels. A plurality of coupling devices connect an idler gearwheel to a countershaft in a rotationally fixed manner. One output gear is provided on both countershafts which is coupled to gearing of an output shaft. At least one first shift element connects two toothed gearwheels in a rotationally fixed manner such that a plurality of power shifting forward gears and at least one reverse gear can be shifted.