A detail is something that supports the main idea.
"Detailed" has many meanings. In the military it means assigned to certain duties. It can also mean characterized by abundant use of detail or thoroughness of treatment, or having many small areas of exactitude.
in greater detail
There was a great attention to detail in the painting.I'd like some more detail on the skirt, please.
the supporting detail
it is a beneficial to the detail
Gives more detail
Detail?
Use with much detail or in great detail.
Disorganised is the opposite of detail oriented.
"Orientation" is a noun, meaning the direction something is pointed. "Oriented" is a verb form and adjective meaning pointed that way. "Detail-oriented" means pointed in the direction of detail, concerned with detail. "He has a detail-oriented approach" means he concerns himself with details. "Detail orientation" means the direction the detail is pointed, not perhaps a very useful phrase, since detail is rarely pointed in any direction.
source detail
how do you describe in detail of a phalanx
how do you describe in detail of a phalanx