The two most prominent processes of ion-matter interaction are the energy loss and charge exchange, whereby the first depends on the charge state of the ion as determined by the latter. However, up to now there has existed no closed calculation of these two major processes. We herewith present, within an integrated approach, a Monte Carlo calculation which intrinsically entails target ionization/excitation, as well as charge exchange and projectile ionization/excitation on equal footing, especially extended to the situation of ion-solid interaction.