The following video is part of our "Motley Fool Conversations" series, in which Chief Investment Officer Andy Cross and analyst Michael Olsen discuss topics across the investing world.

In today's conversation, Andy talks to senior analyst Mike about an unknown, underappreciated, and misunderstood insurance broker that is not only a cash flow machine but a super cheap stock. Join us to learn more about Aon and why it deserves a spot in your portfolio.

Andy Cross owns BRK-B shares. Michael Olsen owns Aon and BRK-B shares. The Motley Fool owns shares of Aon. Motley Fool newsletter services recommend Automatic Data Processing, Aon, and Paychex. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.