Warren Buffett's Berkshire Hathaway reveals big stakes in Verizon, Chevron

Warren Buffett's Berkshire Hathaway on Tuesday announced two major new investments, revealing an $8.6 billion stake in the phone company Verizon Communications and a $4.1 billion stake in oil company Chevron. The investments were disclosed in a regulatory filing detailing Berkshire's U.S.-listed stock holdings as of Dec. 31. Berkshire also disclosed a new $499 million...