The Discussion section is where the author(s) explain the results. They will talk about how the research answered, or failed to answer, the research question. They will address how the outcomes filled gaps in the research, how they might be applied more broadly, how the study's results may have limitations, and discuss new questions that came up in the course of the research.
The Discussion is where the authors will most likely discuss how to generalize from their research to other samples and situations.
The Discussion section will have a "Discussion" heading fairly consistently. However, many articles may also have additional headings or subheadings in the Discussion section. Where the information on generalization is located may vary based on which headings the author(s) decide to use.