BRUSSELS (Reuters) -Microsoft will sell its chat and video app Teams separately from its Office product globally, the U.S. tech giant said on Monday, six months after it unbundled the two products in Europe in a bid to avert a possible EU antitrust fine. The European Commission has been investigating Microsoft's tying of Office and Teams since a 2020 complaint by Salesforce-owned competing workspace messaging app Slack. Teams, which was added to Office 365 in 2017 for free, subsequently replaced