Motorola said Tuesday that it plans to split into two separate units in the first quarter of 2011.

One will include the company's mobile devices and home businesses. The other will include its enterprise mobility solutions and networks businesses.

Sanjay Jha, co-chief executive officer of Motorola, will serve as chief executive of Motorola's mobile devices and home businesses effective immediately.

Greg Brown, co-chief executive officer of Motorola, will serve as chief executive officer of Motorola's enterprise mobility solutions and networks businesses effective immediately.

Both companies will continue to use the Motorola brand after the separation is completed.