Citigroup Inc. C, -1.25% said Friday its fourth-quarter net income fell to $3.17 billion, or $1.46 a share, from $4.3 billion, or $1.92 a share, in the year-ago period. Revenue increased to $17 billion from $16.8 billion. The New York-based bank beat the Wall Street targets of $1.39 in earnings on revenue of $16.85 billion, […]