SUN VALLEY, ID - JULY 08:  Tim Cook (L), chief executive officer of Apple Inc. and Leslie Moonves, president and chief executive officer of CBS Corp., talk at the Allen & Company Sun Valley Conference on July 8, 2015 in Sun Valley, Idaho. Many of the world's wealthiest and most powerful business people from media, finance, and technology attend the annual week-long conference which is in its 33rd year.  (Photo by Scott Olson/Getty Images)