SUN VALLEY, ID - JULY 6: (L to R) Bob Iger, chief executive officer of The Walt Disney Company, Tim Cook, chief executive officer of Apple Inc., and Eddy Cue, Apple senior vice president of internet software and services, speak with each other as they attend the annual Allen & Company Sun Valley Conference, July 6, 2016 in Sun Valley, Idaho. Every July, some of the world's most wealthy and powerful businesspeople from the media, finance, technology and political spheres converge at the Sun Valley Resort for the exclusive weeklong conference. (Photo by Drew Angerer/Getty Images)

SUN VALLEY, ID - JULY 6: (L to R) Bob Iger, chief executive officer of The Walt Disney Company, walks with Tim Cook, chief executive officer of Apple Inc., as they attend the annual Allen & Company Sun Valley Conference, July 6, 2016 in Sun Valley, Idaho. Every July, some of the world's most wealthy and powerful businesspeople from the media, finance, technology and political spheres converge at the Sun Valley Resort for the exclusive weeklong conference. (Photo by Drew Angerer/Getty Images)

SUN VALLEY, ID - JULY 6: (L to R) Jonathan Nelson, founder of Providence Equity Partners, and Jack Dorsey, co-founder and chief executive officer of Twitter, attend the annual Allen & Company Sun Valley Conference, July 6, 2016 in Sun Valley, Idaho. Every July, some of the world's most wealthy and powerful businesspeople from the media, finance, technology and political spheres converge at the Sun Valley Resort for the exclusive weeklong conference. (Photo by Drew Angerer/Getty Images)

SUN VALLEY, ID - JULY 6: (L to R) Jonathan Nelson, founder of Providence Equity Partners, and Jack Dorsey, co-founder and chief executive officer of Twitter, attend the annual Allen & Company Sun Valley Conference, July 6, 2016 in Sun Valley, Idaho. Every July, some of the world's most wealthy and powerful businesspeople from the media, finance, technology and political spheres converge at the Sun Valley Resort for the exclusive weeklong conference. (Photo by Drew Angerer/Getty Images)

SUN VALLEY, ID - JULY 6: (L to R) Aviv 'Vivi' Nivo, venture capitalist and major shareholder in Time Warner, Jack Dorsey, co-founder and chief executive officer of Twitter, and Steve Easterbrook, president and chief executive officer at McDonalds, attend the annual Allen & Company Sun Valley Conference, July 6, 2016 in Sun Valley, Idaho. Every July, some of the world's most wealthy and powerful businesspeople from the media, finance, technology and political spheres converge at the Sun Valley Resort for the exclusive weeklong conference. (Photo by Drew Angerer/Getty Images)

SUN VALLEY, ID - JULY 6: Doug McMillon, president and chief executive officer of Wal-Mart Stores, Inc., attends the annual Allen & Company Sun Valley Conference, July 6, 2016 in Sun Valley, Idaho. Every July, some of the world's most wealthy and powerful businesspeople from the media, finance, technology and political spheres converge at the Sun Valley Resort for the exclusive weeklong conference. (Photo by Drew Angerer/Getty Images)

SUN VALLEY, ID - JULY 6: (L to R) Ben Sherwood, president of Disney-ABC Television Group, and Bob Iger, chief executive officer of The Walt Disney Company, attend the annual Allen & Company Sun Valley Conference, July 6, 2016 in Sun Valley, Idaho. Every July, some of the world's most wealthy and powerful businesspeople from the media, finance, technology and political spheres converge at the Sun Valley Resort for the exclusive weeklong conference. (Photo by Drew Angerer/Getty Images)

SUN VALLEY, ID - JULY 6: (L to R) Ben Sherwood, president of Disney-ABC Television Group, and Bob Iger, chief executive officer of The Walt Disney Company, attend the annual Allen & Company Sun Valley Conference, July 6, 2016 in Sun Valley, Idaho. Every July, some of the world's most wealthy and powerful businesspeople from the media, finance, technology and political spheres converge at the Sun Valley Resort for the exclusive weeklong conference. (Photo by Drew Angerer/Getty Images)