Citigroup is planning a huge overhaul of its business that will involve layoffs, representing one of the biggest organizational shakeups that the bank has seen in about two decades. The bank, which previously had three regional chiefs overseeing its business globally, will be now be divided into five businesses, Citi said in a statement on Wednesday. Those will include units focused on services, trading, personal banking, banking, and wealth management. Additionally, leaders of the business units will report directly to Citigroup CEO Jane Fraser in a move that's intended to speed up...…Citigroup is planning a huge overhaul of its business that will involve layoffs, representing one of the biggest organizational shakeups that the bank has seen in about two decades. The bank, which previously had three regional chiefs overseeing its business globally, will be now be divided into five businesses, Citi said in a statement on Wednesday. Those will include units focused on services, trading, personal banking, banking, and wealth management. Additionally, leaders of the business units will report directly to Citigroup CEO Jane Fraser in a move that's intended to speed up...WW…