LOUISVILLE, Ky.--(BUSINESS WIRE)--Brown-Forman Corporation (NYSE: BFA)(NYSE: BFB) announced that its Board of Directors has approved a $1 billion increase to its share repurchase authorization and extended it through March 24, 2016, subject to market and other conditions. The existing buyback authorization had $108 million remaining as of market close on March 24, 2015. Under the amended repurchase program, the company can repurchase Class A and Class B common shares from time to time for cash