Wal-Mart Stores, the Bentonville, Ark.-based retailer with $405 billion in 2009 revenue, appointed Jeff Davis treasurer and senior vice president. He succeeds Charles Holley, who was promoted to CFO in September. Davis, 47, was formerly senior vice president of finance and strategy. Before joining the company in 2006 as vice president of finance for Wal-Mart's U.S. health and wellness merchandise unit, Davis was CFO for Lakeland Tours and McKesson General Medical, and worked in finance at Hillman Co.

American International Group, the $64 billion insurer, named Brian Schreiber executive vice president of treasury and capital markets, a new position. Schreiber will oversee treasury, strategic planning, investor relations, and the development of AIG Markets, which will run the company's assets and debt obligations in partnership with the asset management group. Schreiber, most recently head of strategic planning, joined AIG in 1997 as a portfolio manager in its global investment group.

Best Buy, the $49 billion consumer electronics retailer based in Richfield, Minn., appointed Chris Gould treasurer and vice president of finance. He replaces Ryan Robinson, who now serves as CFO for the company's U.S. operations. Gould, 41, joins Best Buy from Wal-Mart, where he worked for 11 years, most recently as head of capital markets in the treasury department. Gould also worked in finance positions in Wal-Mart's international division, financial services, corporate finance, and planning and analysis units.