Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
OPERATING ACTIVITIES
Net income (loss)	$ 691	$ 653
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Provision for credit losses	121	35
Provision (credit) for losses on LIHTC guaranteed funds		(6)
Depreciation, amortization and accretion expense, net	176	185
Increase in cash surrender value of corporate-owned life insurance	(75)	(73)
Stock-based compensation expense	47	31
FDIC reimbursement (payments), net of FDIC expense	(1)	1
Deferred income taxes (benefit)	(70)	(29)
Proceeds from sales of loans held for sale	5,362	2,832
Originations of loans held for sale, net of repayments	(5,428)	(2,951)
Net losses (gains) on sales of loans held for sale	(75)	(59)
Net losses (gains) from principal investing	(51)	(60)
Net losses (gains) and writedown on OREO	2	3
Net losses (gains) on leased equipment	(8)	(35)
Net securities losses (gains)	1
Net losses (gains) on sales of fixed assets	6	5
Gain on sale of Victory		(10)
Loss on sale of residual interests and deconsolidation of securitization trusts		40
Net decrease (increase) in trading account assets	(61)	(227)
Other operating activities, net	(388)	130
NET CASH PROVIDED BY (USED IN) OPERATING ACTIVITIES	249	465
INVESTING ACTIVITIES
Cash received (used) in acquisitions, net of cash acquired		(113)
Proceeds from sale of residual interests		57
Proceeds from sale of Victory		10
Net decrease (increase) in short-term investments, excluding acquisitions	2,305	3,285
Purchases of securities available for sale	(3,314)	(1,993)
Proceeds from sales of securities available for sale	11
Proceeds from prepayments and maturities of securities available for sale	2,357	2,123
Proceeds from prepayments and maturities of held-to-maturity securities	846	628
Purchases of held-to-maturity securities	(770)	(869)
Purchases of other investments	(24)	(42)
Proceeds from sales of other investments	107	266
Proceeds from prepayments and maturities of other investments	2	3
Net decrease (increase) in loans, excluding acquisitions, sales and transfers	(3,061)	(1,936)
Proceeds from sales of portfolio loans	89	91
Proceeds from corporate-owned life insurance	38	24
Purchases of premises, equipment, and software	(40)	(53)
Proceeds from sales of premises and equipment	1	1
Proceeds from sales of OREO	16	13
NET CASH PROVIDED BY (USED IN) INVESTING ACTIVITIES	(1,437)	1,495
FINANCING ACTIVITIES
Net increase (decrease) in deposits, excluding acquisitions	(925)	(806)
Net increase (decrease) in short-term borrowings	86	(224)
Net proceeds from issuance of long-term debt	4,054	648
Payments on long-term debt	(1,582)	(1,034)
Repurchase of common shares	(448)	(355)
Net proceeds from reissuance of common shares	19	23
Cash dividends paid	(199)	(178)
NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES	1,005	(1,926)
NET INCREASE (DECREASE) IN CASH AND DUE FROM BANKS	(183)	34
CASH AND DUE FROM BANKS AT BEGINNING OF PERIOD	653	617
CASH AND DUE FROM BANKS AT END OF PERIOD	470	651
Additional disclosures relative to cash flows:
Interest paid	221	250
Income taxes paid (refunded)	173	109
Noncash items:
Reduction of secured borrowing and related collateral	132	78
Loans transferred to portfolio from held for sale	1	10
Loans transferred to held for sale from portfolio	41	5
Loans transferred to OREO	$ 16	16
LIHTC guaranteed funds put		7
Assets acquired		35
Liabilities assumed		$ 22