"detail" is both singular and plural for particulars But if you would replace "detail" with "features", "particulars", "specifications" they would all be plural so "details" probably reads better

It is just a matter of singular and plural form. For example: Belle: I don't see any details of it. You lie to me. Sean: Because none of my words you grasped well. Belle: I just want one detail from your words. Sean: What? Belle: Being honest with me.