Steve Jobs' successor carried the torch of the iPhone and built Apple into a global powerhouse with few rivals. Apple Inc.’s Tim Cook told employees that he’ll miss the role of chief executive officer but has “enormous comfort” in the leadership of his replacement, John Ternus. Key points and original sources are listed below.

• Steve Jobs' successor carried the torch of the iPhone and built Apple into a global powerhouse with few rivals. Since becoming CEO in 2011, Tim Cook has led the company to become one of the most dominant forces in the daily lives of billions of people. Today i...S1

• Apple Inc.’s Tim Cook told employees that he’ll miss the role of chief executive officer but has “enormous comfort” in the leadership of his replacement, John Ternus.S2

• Tim Cook will be stepping down as Apple's CEO on September 1, with the company's hardware engineering John Ternus set to take over. With the transition set to take place tomorrow, there have been quite a few headlines about Cook lately. The latest story comes...S3