Complex sentence: In December 2002, Citigroup paid fines totaling $400 million, to states and the federal government as part of a settlement involving charges that ten banks, including Citigroup, deceived investors with biased research.
Split into simpler sentences: In December 2002, Citigroup paid fines totaling $400 million, with the amount split between the states and the federal government. The fines were part of a settlement involving charges that ten banks, including Citigroup, deceived investors with biased research.