S&P 500 companies start facing up to the potential Brexit costs

By Noel Randewich and Caroline Valetkevitch SAN FRANCISCO/NEW YORK (Reuters) - U.S. companies, facing investors in their first earnings reporting season since Great Britain voted to leave the European Union, are broadly conceding that the so-called "Brexit" could weigh on profits. Companies from General Motors to Yum Brands to FedEx say they do expect a hit, though it is too soon to tell how deep it may be or when it will come. Wall Street investors were originally rattled by the Brexit vote and