** FILE ** People leave the headquarters of Merrill Lynch &amp; Co. in New York in this Nov. 14, 2007 file photo. Investment bank Merrill Lynch &amp; Co. on Monday, Dec. 24, 2007 said it sold a stake in itself to Temasek Holdings and Davis Selected Advisors for $6.2 billion as it looks to strengthen its balance sheet. (AP Photo/Jin Lee, file) Photo: Jin Lee