Yahoo! Finance Here.A step at a time:"The Boeing Company", is perhaps the world's largest in the designing, manufacturing, developing, and selling of commercial jets, satellites, missile-defense systems, and military aircraft, among other products. They're also the second largest defense contractor in the U.S., and together with all other defense systems business, accounts for 56% of their total revenues. Meanwhile, their commercial airplanes segment earns about 41% of their total revenu...