The $2.2 trillion estimate is the White House's best guess.
"Treasury Secretary Steven Mnuchin said that he had spoken to President Trump about the agreement and that Mr. Trump would "absolutely" sign it as it is written today".
Passage of the bill sends it to the House for approval there.
But another advance on Wall Street was blunted on Wednesday as it emerged that four Republican senators have baulked at the generous provisions agreed to in the bipartisan deal with the White House.
The legislation aims to flood the economy with capital by sending $1,200 checks to many Americans, creating a $367 billion loan program for small businesses, and setting up a $500 billion fund for industries, cities and states. Pharmacists would also be allowed to practice as a parts of teams at hospitals or health clinics.
"Nobody thinks legislation can end this". "We can not outlaw the virus".
Senate Majority Leader Mitch McConnell called the crisis the bill is aimed to address "the most serous threat to Americans" health in over a century and quite likely the greatest risk to America's jobs and prosperity that we've seen since the Great Depression'.
Asian markets mostly rose on Thursday as investors breathed a sigh of relief that U.S. senators have finally passed a gargantuan stimulus package for the world's top economy after being delayed by wrangling over details. "Emergency relief. That's what this is". "That's what this is".More news: NY establishes a temporary morgue amid a coronavirus pandemic
Senate will next meet on April 20 - McConnell. He said he would leave it to others to decide whether "the last few changes merited three days of delay in the face of this worsening crisis".
"That Washington drama does not matter any more", McConnell said. Portions of the legislation were being released piecemeal on Wednesday afternoon.
But an amendment to limit the unemployment benefits failed 48-48 late Wednesday before the Senate approved the final version 96-0 shortly before midnight. Sen.
Those payments would be in addition to a broad expansion in unemployment benefits, which would be extended to nontraditional employees, including gig workers and freelancers, that Senate Minority Leader Chuck Schumer (D., N.Y.) had pushed for, according to a Democratic aide familiar with the negotiations.
He said the bill's text had yet to be completed.
The deal was announced just after 1am on Wednesday, after hours of contentious floor speeches in the Senate that appeared to show negotiations teetering on the brink.
New unemployment claims are expected to shatter records.
"We still have the trajectory going up", said New York Governor Andrew Cuomo, adding that about 12 percent of the people who test positive require hospitalization.More news: New leaks of the Huawei P40 series include full specs and pricing
"This is a proud moment of the United States Senate and for the country", the senator said, adding, "And we're going to win this battle in the very near future".
The plan does, however, include limitations based on adjusted gross income.
Some Republican senators, including Lindsey Graham of SC, voiced discontent over the expansion of unemployment insurance benefits, arguing that this could discourage people from returning to work.
The president said in a Fox News special aired from the White House that he thought life might get back to normal by Easter.
Sanders made his threat after Sens. "Our health care system is not prepared to care for the sick".
State and local authorities would receive up to $150 billion in grants to fight the virus, care for their residents and provide basic services.
The Small Business Administration also could serve as a guarantor for loans of up to $10 billion for small businesses to meet payroll and pay down debt. The block also would also extend to companies controlled by their children, spouses or in-laws. The Treasury Department will be charged with administering the program.Any company receiving a government loan would be subject to a ban on stock buybacks through the term of the loan plus one additional year. And, the mixed message about testing for the coronavirus.
Schumer has pledged that once a deal is reached, Democrats will not block expedited consideration. It took two months to craft the 2009 bill while Franklin D. Roosevelt got 15 major bills through Congress in his first 100 days. It is unclear whether lawmakers will be able to find that level of unity, but the urgency to vote and adjourn was widespread.More news: Spain's coronavirus death toll surpasses 4000