CASH AND DUE FROM BANKS	12 Months Ended
CASH AND DUE FROM BANKS	Dec. 31, 2015
Cash and Cash Equivalents [Abstract]
CASH AND DUE FROM BANKS	CASH AND DUE FROM BANKS The Company’s subsidiary banks maintain certain average reserve balances and compensating balances for check clearing and other services with the FRB. At December 31, 2015 and 2014, the balance of deposits at the FRB amounted to $2.0 billion and $2.1 billion, respectively. Average balances maintained with the FRB during the years ended December 31, 2015, 2014, and 2013 exceeded amounts required by law for the FRB’s requirements. All amounts, both required and excess reserves, held at the FRB currently earn interest at a fixed rate of 50 basis points. As a result, the Company recorded, in interest-bearing deposits in banks, interest income on FRB deposits of $4 million, $5 million, and $5 million for the years ended December 31, 2015, 2014, and 2013, respectively.

The entire disclosure for cash and cash equivalent footnotes, which may include the types of deposits and money market instruments, applicable carrying amounts, restricted amounts and compensating balance arrangements. Cash and equivalents include: (1) currency on hand (2) demand deposits with banks or financial institutions (3) other kinds of accounts that have the general characteristics of demand deposits (4) short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Generally, only investments maturing within three months from the date of acquisition qualify.