Best Buy, the largest U.S. consumer electronics chain, on Tuesday reported higher-than-expected quarterly earnings on a strong holiday season and said it would buy back stock for the first time since 2012.

Chief Executive Officer Hubert Joly said on a conference call that Best Buy planned this year to start a cost-cutting effort to save $400 million over the next three years. It will also focus on improving merchandising, opening new store-in-store formats under its television and kitchen businesses and increase private-label products this fiscal year.