CHICAGO–(BUSINESS WIRE)–Fitch Ratings has affirmed all of Aon plc’s (Aon) ratings, including the Long-Term Issuer Default Rating (IDR) and senior debt ratings at ‘BBB+’, and the Commercial Paper Ratings at ‘F2’. The Rating Outlook is Stable. A complete list of ratings follows at the end of this release. KEY RATING DRIVERS The ratings affirmation reflects Aon’s continued favorable competitive position, solid balance sheet and cash flow generation, and very good financial flexibility, partially