Dont understand the phrase ça a été

dont understand the phrase ça a été

“Ça a été un beau voyage”

It has been a beautiful trip

But if you’re looking for the exact phrase “Ça a été”, It depends on the context. It could mean an answer to a scenario like :
-Tu as l’air pâle. Comme a été le voyage?
-Ca a été.

Meaning it has been O.K., but not being enthousiast. Could also just mean OK, no good or bad emotion associated with it. “Ça a été?” could also be a question. Very common in speaking. It just mean “did it go well?”