Cash and Cash Equivalents

12 Months Ended

Dec. 31, 2015

Cash and Cash Equivalents [Abstract]

Cash and Cash Equivalents

Cash and Cash Equivalents

The following table details our cash and cash equivalents at December 31, 2015 and December 31, 2014:

(Dollars in thousands)	December 31, 2015		December 31, 2014
Cash and due from banks (1)	$	1,372,743	$	1,694,329
Securities purchased under agreements to resell (2)	125,391		95,611
Other short-term investment securities	5,123		6,122
Total cash and cash equivalents	$	1,503,257	$	1,796,062

(1) At December 31, 2015 and 2014, $405 million and $861 million, respectively, of our cash and due from banks was deposited at the FRB and was earning interest at the Federal Funds target rate, and interest-earning deposits in other financial institutions were $500 million and $440 million, respectively.

(2) At December 31, 2015 and 2014, securities purchased under agreements to resell were collateralized by U.S. Treasury securities and U.S. agency securities with aggregate fair values of $128 million and $98 million, respectively. None of these securities were sold or repledged as of December 31, 2015 and 2014.

Additional information regarding our securities purchased under agreements to resell for 2015 and 2014 is as follows:

	Year Ended December 31,
(Dollars in thousands)	2015		2014
Average securities purchased under agreements to resell	$	75,504	$	108,910
Maximum amount outstanding at any month-end during the year	338,612		283,215