Although negotiations between teams can result in informational advantages resulting in higher joint gain, the presence of teams can also undermine trust, fuel competition, and impair joint gain. This research addresses this challenge by using structured dialogues to develop trust that helps to establish cooperative interdependence between teams. Building upon prior research in negotiations and intergroup relations, the authors propose that superordinate goal dialogues can increase trust and facilitate strategy to generate high quality outcomes. Across four face-to-face negotiation studies, the authors document that structured dialogues about superordinate goals increase trust and teams’ use of negotiation strategy to ultimately improve joint gain. The authors identify the boundary conditions that shape when superordinate goal dialogues are most likely to increase joint gain, as well as when they will not be effective.