Treasury Secretary Steven Mnuchin will present details to Senate Republicans later Tuesday. The package would be mostly devoted to flooding the economy with cash, through a payroll tax cut or other mechanism, two of the officials said, with some $50 billion directed specifically to helping the airline industry.

White House officials also want to include more assistance for small businesses and their employees in the legislation, the officials said. The officials spoke on condition of anonymity to discuss internal deliberations.

The $850 billion package would come in addition to another roughly $100 billion package that aims to provide paid sick leave for impacted workers, though the details of that legislation remain very fluid as it moves through Congress.

But there is emerging tension between the White House’s approach and the bills Democrats are trying to advance. White House officials are leaning hard into the idea of tax cuts and industry assistance, while Democrats have said their proposals are focused more on helping workers, health care providers, schools, and senior citizens.