Well, I'm from Spain, and here 1,000,000 is "un millon", 1.000.000.000 is "un millardo" and 1,000,000,000,000 is "un billon". I thought that a in US a billion

Well, I'm from Spain, and here 1,000,000 is "un millon", 1.000.000.000 is "un millardo" and 1,000,000,000,000 is "un billon". I thought that a in US a billion were 1,000 million but in UK it were 1,000,000 million.