Drug giant Pfizer offers early retirement ahead of layoffs in memo to employees

Pharmaceutical giant Pfizer is offering early retirement to U.S. workers ahead of layoffs early next year, it announced internally to employees.

The company, which currently employs more than 90,000, didn't say how many people it plans to cut. But it told employees Tuesday that all business units and divisions will likely lay off nonunion workers, according to materials outlining the workforce reduction program obtained by CNBC.