Just quickly because most of the procedures are closely held, but I assure you...it is not a "normal procedure"
"Classified information is typically shared after considerable government deliberation since, as the Nixon anecdote illustrates, such disclosures risk undermining the work of intelligence officials and endangering national security. And it’s another matter entirely “when the United States shares another country’s secret information”—as opposed to its own—without that country’s permission, Naftali explained. “The U.S. government does that very, very, very rarely” since it can jeopardize intelligence sources and the intelligence-sharing relationship as a whole."
Was Trump's Disclosure to the Russians Unprecedented? - The Atlantic