CVS Caremark, the $87.4 billion drugstore chain and pharmacy benefit management company, appointed David Denton CFO and executive vice president. He replaces David Rickard, who is retiring. Denton, 44, most recently served as Woonsocket, R.I.-based CVS' controller, chief accounting officer and senior vice president. Since joining CVS in 1999, he has also served in senior finance positions at the company and a subsidiary, PharmaCare. Earlier, Denton was a consultant at Deloitte & Touche.

Microsoft, the $58.4 billion software company, promoted Peter Klein to CFO. He succeeds Chris Liddell, Microsoft's finance chief since 2005, who is leaving to broaden his career beyond serving as a CFO. Klein, 47, most recently was CFO of the Redmond, Wash.-based company's $18.9 billion business division and earlier served as CFO of its server and tools unit. Before joining Microsoft in 2002, he worked in finance at McCaw Cellular, at a private equity firm, Orca Bay Capital, and at several start-ups.

Walt Disney Co., the Burbank, Calif.-based entertainment and media company with $37.8 billion in 2008 revenue, appointed Jay Rasulo CFO and senior executive vice president. He is trading jobs with Thomas Staggs, Disney's CFO since 1998, who becomes chairman of Walt Disney Parks and Resorts. Rasulo, 53, who has worked at Disney for 23 years, became president of the parks and resorts unit in 2002 and its chairman in 2005. Earlier, he was chairman and CEO of Euro Disney in France.