NEW YORK (Standard&Poor's) March 8, 2010--Standard&Poor's Ratings Services today said it assigned its 'A' rating on Ameriprise Financial Inc.'s $750 million senior debt offering. The issuance has a scheduled maturity in 2020. Ameriprise Financial may use proceeds from the notes to retire $340 million in debt that matures in November 2010 and for additional financial flexibility. The ratings on Ameriprise Financial and its insurance company subsidiaries--RiverSource Life Insurance Co. and RiverSource Life Insurance Co. of New York--are based on Ameriprise Financial's very strong controlled distribution network led by more than 12,000 financial advisors and a marketing approach that provides excellent customer relationships. Other rating strengths include top 10 market positions in retail variable annuities and variable