Fitch Affirms Aetna's IDR at 'A'; IFS Ratings at 'AA-'; Outlook Stable

(BUSINESS WIRE) -- Fitch Ratings has affirmed Aetna Inc's. (Aetna) 'A' long-term Issuer Default Rating (IDR) and the 'A-' ratings on Aetna's various issues of senior unsecured notes. Additionally, Fitch has affirmed Aetna's F1 short-term...