CHICAGO–(BUSINESS WIRE)–Fitch Ratings has affirmed the ratings of Allergan plc (Allergan; NYSE: AGN) and subsidiaries at ‘BBB-‘. The Rating Outlook is Stable. A full list of rating actions, which apply to approximately $32.8 billion of debt outstanding at Sept. 30, 2016, follows at the end of this release. KEY RATING DRIVERS Scaled and Growing Allergan is among the largest pharmaceutical companies in the world, with a diversified, durable, and growing product portfolio and a strong product pi