Dollar index briefly slips into negative territory

The dollar briefly weakened on Wednesday against a basket of currencies, retreating from a 14-year peak, after the release of a government report that showed U.S. producer prices rose less than forecast in October.

The dollar index was unchanged on the day at 100.23 after rising to 100.53 earlier Wednesday.

(Reporting by Richard Leong; Editing by Chizu Nomiyama)