The document discusses several mergers and acquisitions involving major companies. It provides details of Pfizer's acquisition of Allergan and reasons for the later demerger. It also summarizes Disney's acquisition of Pixar, Facebook's acquisition of WhatsApp, Sony's acquisition of ZEE TV channels, BMW's acquisition of Rover, and Kraft's acquisition of Cadbury. In each case, it outlines the key details of the deal including value, reasons for the deal, and in some cases outcomes.