OLDWICK, N.J.–(BUSINESS WIRE)–A.M. Best has affirmed the Financial Strength Rating of A++ (Superior) and the Long-Term Issuer Credit Ratings of “aaa” of Teachers Insurance and Annuity Association of America (TIAA) and its wholly owned insurance subsidiary, TIAA-CREF Life Insurance Company (TIAA-CREF Life). TIAA and TIAA-CREF Life are collectively referred to as the TIAA Group. A.M. Best also has affirmed the Long-Term Issue Credit Ratings of “aa” on TIAA’s $1.05 billion 6.85% surplus notes du