OLDWICK, N.J.–(BUSINESS WIRE)– #insurance–AM Best has revised the outlooks to negative from stable and affirmed the Financial Strength Rating (FSR) of A- (Excellent) and the Long-Term Issuer Credit Ratings (Long-Term ICR) of “a-” (Excellent) of BCBSM, Inc., d/b/a Blue Cross Blue Shield of Minnesota (BCBSMN), and its subsidiary, HMO Minnesota, d/b/a Blue Plus. Both companies are domiciled in Eagan, MN. The Credit Ratings (ratings) of BCBSMN reflect its balance sheet strength, which AM Best assesses as str