IGT said Bugno will pursue a new professional opportunity.
Going forward, IGT’s new business responsibilities – which Bugno handled – will be split between its global lottery and global gaming business units.
Responsibilities for strategic initiatives will be taken up by the IGT strategy and corporate development department.
IGT CEO Marco Sala said: “I would like to thank Walter for his accomplishments over the course of more than 10 years of senior leadership at IGT. His efforts have made meaningful contributions to the strength of our global leadership.
“At every stage of his time with IGT, Walter successfully engaged teams across multiple regions, built significant customer relationships, fostered continued talent development and championed innovation throughout his organization. On behalf of everyone at IGT, I wish Walter well in his future endeavors.”