MINNEAPOLIS--(BUSINESS WIRE)--Ameriprise Financial, Inc. (NYSE: AMP) today reported fourth quarter 2014 net income(1) of $426 million, or $2.23 per diluted share. Operating earnings were $440 million, up 16 percent from a year ago, with operating earnings per diluted share increasing 23 percent to $2.30. Operating net revenues increased 5 percent to $3.0 billion driven by strong fee-based business growth from client net inflows and market appreciation. Operating expenses increased 5 percent to