CHICAGO–(BUSINESS WIRE)–Fitch Ratings has affirmed the Issuer Default Ratings (IDR) at ‘A’ and revised the Rating Outlook to Negative from Stable for Caterpillar Inc. (CAT), Caterpillar Financial Services Corporation (CFSC), and certain of CFSC’s subsidiaries. A full list of rating actions follows at the end of this release. NEGATIVE OUTLOOK The revision to Negative reflects the impact of the extended downturn in CAT’s machinery markets and an increased risk that the company could face challe