The DetachDrawing command lets you detach Referenced drawings that were attached to the current drawing with the AttachDrawing command.
Note: Although you can erase References with the Delete command, use the DetachDrawing command to remove the dependent symbols from the drawing file, as well.
To detach Referenced drawings:
The names of the References attached to the drawing are listed in the References palette. You can delete the selected Referenced drawing by right-clicking the name and selecting Detach from the context menu.
Access
Command: DetachDrawing