Citigroup is expected to announce a sizable dividend cut, cash infusion of at least $10 billion and write-down of as much as $20 billion in mortgage-related investments as part of its fourth-quarter earnings report.

Vikram Pandit, Citigroup's new chief executive, also is expected to unveil Tuesday a cost-cutting plan that will likely include substantial job cuts. The moves are part of his push to shore up the company's finances, including by replenishing its depleted capital.

Deep job cuts would represent the second major cost-cutting push by Citigroup in the past year. People familiar with the situation say that more than 20,000 jobs are likely to be eliminated, with the resulting expense included in a restructuring charge.