Firstly, there are no attributes at all, in the XML you posted.
Secondly, LogNoteID is not an element of the root element. Why are you trying to access it on the root element?
As already mentioned, your misusing the xml document. Look at xmlSearch. There are some good examples around and it's easy once you get the hang of it. If the doc examples aren't detailed enough, google "coldfusion xmlsearch".
I am trying to get the value for the LogNoteID.
How would the XML attributes appear in the output and how to access the LogNoteID value?
The element you have defined, xnCompany, places you at the document root. That is, at the element NotesImport.
Then the question is how to get to LogNoteID from there. An answer: by navigating through Facility and each of its two LogNote children. The respective values are: