Although (at the moment) there is [[d:Q16021]] and [[d:Q6477791]] with "bilhão" in its Portuguese label, I see no results at
https://www.wikidata.org/w/index.php?search=bilh%C3%A3o&title=Special%3ASearch
Version: wmf-deployment
Severity: normal
See Also:
https://bugzilla.wikimedia.org/show_bug.cgi?id=42234