Apple has so much cash, that it can afford to buy all of the following companies, which are represented in the above cartoon:
In the cartoon, Tim Cook's arms are crossed, meaning he is very defensive and unlikely to purchase anything anytime soon. However, the fact that he's glancing at the products means that he may buy a company in the future.
Of course, Apple is unlikely to buy any of the aforementioned companies. If Apple buys something, Cook will be sure that it's related to Apple's business model. Either way, the fact that Cook can easily buy multiple major companies illustrates the scope of Apple's cash pile.
(Image Credit: Yelena Lamm/MyVoucherCodes.co.uk)