Cash and Cash Equivalents (Tables)

12 Months Ended

Dec. 31, 2011

The following table details the cash and cash equivalents at December 31, 2011 and 2010:


	December 31,
(Dollars in thousands)	2011		2010
Cash and due from banks (1)	$	852,010	$	2,672,725
Securities purchased under agreements to resell (2)		175,553		60,345
Short-term agency discount notes		—		330,370
Other short-term investment securities		87,385		12,992

Cash and cash equivalents	$	1,114,948	$	3,076,432

(1)

At December 31, 2011 and 2010, $100.1 million and $2.2 billion, respectively, of our cash and due from banks was deposited at the Federal Reserve Bank and was earning interest at the Federal Funds target rate, and interest-earning deposits in other financial institutions were $371.5 million and $246.3 million, respectively.

(2)

At December 31, 2011 and 2010, securities purchased under agreements to resell were collateralized by U.S. treasury securities and U.S. agency securities with aggregate fair values of $179.1 million and $61.6 million, respectively. None of these securities received as collateral were sold or repledged as of December 31, 2011 and 2010.

Securities Purchased Under Agreements toResell

Additional information regarding our securities purchased under agreements to resell for 2011 and 2010 is as follows:


	Year ended December 31,
(Dollars in thousands)	2011		2010
Average securities purchased under agreements to resell	$	110,291	$	41,113
Maximum amount outstanding at any month-end during the year		375,236		152,603