Apple announced Tuesday that it will distribute $100 billion in cash to its shareholders over two years. Apple said that it will buy back $60 billion in shares, the largest buyback authorization in history. It is also raising its dividend by 15 percent, the company said. Apple also posted results for its latest quarter that beat expectations, though net income fell 18 percent to $9.5 billion, and revenue rose a modest 11 percent from last year to $43.6 billion.