Master of Business Administration, University Goettingen, 1982. Doctor of Philosophy, University Wuerzburg, 1992.
Researcher University Muenster, Germany, 1980-1982. Consultant Institute Professor Bergler, Nuernberg, Germany, 1982-1985. Product strategy Ciba-Geigy, Basle, Switzerland, 1985-1986.
Consultant Siemens AG, Munich, 1987, corporation strategies manager, personnel department corporation planning and development, 1988—1994, head corporation projects, corporation planning and development, 1994, head corporation consultant, 1995, head fluoroscopy & imaging, angiogrpahy division, medical engineer group, 1998—2000, executive vice president medical solutions group, 2000—2002. Chief operating officer Siemens Corporation (United States of America), 2001—2002, Chief Executive Officer, 2002—2003. Member corporation executive committee Siemens AG, Munich, 2004—2005, president, Chief Executive Officer, 2005—2007.
President, chief operating officer Alcoa Inc., Pittsburgh, 2007—2008, president, Chief Executive Officer, 2008—2010, chairman, president, Chief Executive Officer, since 2010. Board directors Nokia Siemens Networks B.V., 2002—2007, Alcoa Inc., since 2003, Bayer AG, since 2005, Citigroup Inc., 2005—2007, International Business Council, World Economic Forum. Board trustees The Conference Board, Inc.
Director Metropolitan Opera, New York City.
Married Birgit Henriette Müeller, July 27, 1982. Children: Hannah, Lena.