General Motors Co
Liddell, 52, will leave GM on April 1. He joined the company in January 2010 and saw it through its record initial public stock offering last November.
I came to General Motors to be part of something great, Liddell said in a statement. My objective was to help rebuild this iconic company.
Liddell left Microsoft, where he was CFO, in November 2009 to look for a bigger job. When he joined GM he was seen as a well-regarded outsider who could possibly succeed then-Chief Executive Ed Whitacre when he stepped aside.
Microsoft said when Liddell left that he was looking at opportunities to expand his career beyond being a CFO.
However, last August Dan Akerson, 62, was named CEO, immediately leading to industry speculation Liddell would eventually leave.
The decision to leave was Chris', GM spokeswoman Lori Arpin said. He came here to be CFO and with the company on proper footing, he decided that it was the right time personally and professionally to pursue other opportunities. He has not announced his future plans yet.
Dan Ammann will succeed Liddell as CFO. The 38-year-old executive, who joined GM in March 2010, is currently vice president, finance and treasurer. A successor for Ammann in the treasurer's office will be announced at a later date.
GM said Ammann has played a major role in key financial decisions at the company, including setting financial strategy and reducing debt, and working toward the IPO.
(Additional reporting by Bernie Woodall; Editing by Lisa Von Ahn, Dave Zimmerman)