VIEWING A SHAREPOINT ID IN DETAIL VIEW FOR A RECORD

I'm trying to view an ID  column in a "DETAIL" view. in JSON code.

(after double-clicking on a row to view a single item)

I can't get the field to display.

{
"sections": [
{
"displayname": "Current Row ID",
"fields": [
"ID"
]
}

I tried creating a calculated field :using this :

="Questionnaire: "&ID

but this blows up after editing a record.

Thanks

fordraiders