Legendary fund manager Peter Lynch once said that you shouldn't invest in any idea you couldn't illustrate with a crayon.
Though I'm not much for crayons, I do love the pithiness of that line. We regularly preach the same idea at the Fool: Don't buy what you don't understand. And if you can't simply sketch out a company's business model -- how it actually makes money -- then maybe you shouldn't be investing in it.
I don't know about you, but when I think of Kraft
Source: Kraft 2010 10-K.
Of course, in the future this will look very different -- these numbers are pulled from the 2010 10-K, and Kraft has announced plans to divide its business into two companies. So this is simply a point-in-time look.
Think I missed something in this illustration? General thoughts on this exercise? Let me know in the comments section below. And if you haven't already, be sure to follow our Kraft news and commentary using the Fool's free My Watchlist tool.