Citigroup Inc will eliminate 11,000 jobs worldwide, about 4 percent of its total staff, in a move to save as much as $1.1 billion a year in expenses, Reuters reported. The move will initially result in pre-tax charges of $1 billion to fourth-quarter earnings, the company said in a statement. The move is the first major action to restructure the company since directors named Michael Corbat chief executive officer in October after becoming impatient with former CEO Vikram Pandit. Besides the job cuts, the reorganization will reduce annual revenues by “less than $300 million,” the company said.