DIVESTITURES AND BRANCH ASSETS AND LIABILITIES HELD FOR SALE (Details) (Disposed of by sale, Illinois, Retail branches, USD $)	1 Months Ended	9 Months Ended
	Jun. 30, 2014 branch	Sep. 30, 2014
Disposal of Branch Assets and Liabilities [Abstract]
Number of branches sold	103
Deposit liabilities	$ 4,800,000,000
Loans (primarily middle market, small business, home equity and credit card balances)	1,000,000,000
Gain (loss) on sale		288,000,000
Deposits
Disposal of Branch Assets and Liabilities [Abstract]
Gain (loss) on sale		286,000,000
Interest expense on deposits		4,000,000
Loans
Disposal of Branch Assets and Liabilities [Abstract]
Gain (loss) on sale		11,000,000
Interest and fee income on loans		20,000,000
Other branch assets
Disposal of Branch Assets and Liabilities [Abstract]
Gain (loss) on sale		$ (9,000,000)