An information processing device includes: an acquisition unit that acquires inertial information from an inertial sensor provided in a controller; a detection unit that detects the controller from a captured image acquired through imaging by an imaging device; and a control unit that acquires a position of the controller on a basis of a position of the controller acquired in a past and the inertial information in a case where the controller is not detected from the captured image. The control unit controls a display to display a display item at a position based on the acquired position of the controller.