A.M. Best Downgrades Issuer Credit and Debt Ratings of Principal Financial Group, Inc. and Principal Life

credit rating (ICR) to 'aa-' from 'aa' of Principal Life Insurance Company (PLIC), the lead operating company of Principal Financial Group, Inc. (Principal) [NYSE: PFG]. A.M. Best also has downgraded Principal's ICR to 'a-' from 'a' as well as the...