DETROIT (AP) — General Motors Corp. said Tuesday it will lay off salaried workers, cut truck production, suspend its dividend and borrow $2 billion to $3 billion to weather a severe downturn in the U.S. market.

GM said the moves will raise $15 billion to help cover losses and turn around its North American operations, including $10 billion from internal cost-cutting and $5 billion from selling some assets and borrowing against others.

“In short, our plan is not a plan to survive. It is a plan to win,” GM Chairman and CEO Rick Wagoner said in a broadcast to employees.

GM’s shares fell as much as 6 percent to a new 54-year low of $8.81, but rebounded to close at $9.86, up 46 cents from Monday’s close.

Chief Operating Officer Fritz Henderson said GM wants to reduce its total salaried costs in the U.S. and Canada by more than 20 percent.

A large chunk of the reduction, he said, would come from cutting health care benefits for salaried retirees over age 65. Those people would get a pension increase from the company’s overfunded pension fund to help compensate for Medicare and supplemental insurance, the company said.

Several thousand jobs will be cut through normal attrition and retirements, and through early retirement and buyout offers, Henderson said. The company could resort to involuntary layoffs but does not want to, he said.

Wagoner said the company has not made early retirement offers to salaried workers for three or four years, and he would expect good acceptance of new offers, helping GM to reach its cost-cutting goal.

GM has 40,000 salaried employees in North America.

Henderson said the company intends to reduce its truck production capacity by 300,000 units, 150,000 more than it announced at its annual meeting in June.

The company will speed up previously announced closures of some truck and sport utility vehicle factories. GM said last month it would close plants in Janesville, Wis.; Oshawa, Ontario; Toluca, Mexico; and Moraine, Ohio, but Henderson would not say which closures would be accelerated or when the closures would take place.

The company also will make thousands of job cuts at other truck assembly and parts factories, Henderson said.

He would not say if further plants will be closed, and said the company still must negotiate further cuts with the United Auto Workers.

Henderson said 19,000 hourly workers have recently left the company through an attrition program, but even more cuts will be needed.

“These are going to be some pretty tough measures,” he said.