Verizon Communications Inc. said it is offering voluntary separation buyout packages to thousands of management employees in the United States.

"It is a voluntary plan and offers employees three weeks' pay for every year of service," Verizon spokesman Jim Gerace said, without providing details on the number of employees who would be offered the plan.

The move comes as the No. 1 U.S. wireless provider (VZ) is trying to slash expenses and save $10 billion in costs by 2020.

Verizon had about 153,100 employees as of June.