OLDWICK, N.J.--( BUSINESS WIRE )-- A.M. Best Co. has affirmed the financial strength rating (FSR) of A+ (Superior) and issuer credit ratings (ICR) of "aa-" of the U.S. life/health subsidiaries of Aegon N.V. (Aegon) (Netherlands) [NYSE: AEG]. Aegon's U.S. life/health companies are collectively referred to as Aegon USA Group (Aegon USA). In addition, A.M. Best has affirmed the debt ratings of "aa-" on the outstanding notes issued under the funding agreement-backed securities (FABS) programs sponsored by Monumental Life Insurance Company (Cedar Rapids, IA), a member of Aegon USA. Concurrently, A.M. Best has affirmed the FSR of A (Excellent) and ICR of "a" of Stonebridge Casualty Insurance Company (Stonebridge Casualty), the property/casualty member of Aegon USA.