What happened to Alexander's empire after his death? Who took what?

The correct answer is that after the death of Alexander The Great, The current Macedonian generals during his time were arguing about, who will take over Alexander's great empire, after the argument, three distinct leaders were entitled, Antigonnus, Ptolemy, and Selecus. One was the ruled of the Macedonian Greek city-states, the other won over the tile of pharaoh on Egypt and lastly, the other won over control on the Persian Empire.