NEW YORK--(BUSINESS WIRE)--Fitch Ratings has affirmed the 'BBB' long-term Issuer Default Rating (IDR) for AutoZone, Inc. (AutoZone). The Rating Outlook is Stable. A full list of ratings follows at the end of this release. KEY RATING DRIVERS The rating reflects AutoZone's leading position in the retail auto parts and accessories aftermarket, its strong operating performance, and steady credit metrics. The ratings also consider the company's aggressive share repurchase posture. AutoZone is a lead