The 61-year-old was constantly linked to the Merseyside club as either a successor to sacked boss Kenny Dalglish or as a sporting director working alongside the new manager.
"I've only spoken with Liverpool about a job," said Van Gaal. "My aim was to be manager at a national team.
"That it turned out to be Holland is the best thing that could happen. I had a lot of chances to sign with other clubs, but I rejected it.
"Only Liverpool came with a plan that I liked, because I've never worked in the Premier League and I always wanted to become champion in England."