Consolidated Statements of Cash Flows (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Cash Flows From Operating Activities:
Net income	$ 256	$ 445
Adjustments to reconcile net income to net cash from operating activities:
Provision for credit losses	272	288
Depreciation	74	64
Amortization of intangibles	27	22
Equity-based compensation	25	25
(Gain) loss on securities, net	(23)	9
Net write-downs/losses on foreclosed property	8	59
Net change in operating assets and liabilities:
Segregated cash due from banks	34	0
LHFS	332	1,214
FDIC loss share receivable	99	105
Other assets	247	52
Accounts payable and other liabilities	(750)	(288)
Other, net	(136)	(122)
Net cash from operating activities	465	1,873
Cash Flows From Investing Activities:
Proceeds from sales of AFS securities	421	109
Proceeds from maturities, calls and paydowns of AFS securities	1,668	851
Purchases of AFS securities	(1,226)	(2,859)
Proceeds from maturities, calls and paydowns of HTM securities	1,190	1,021
Purchases of HTM securities	(724)	(412)
Originations and purchases of loans and leases, net of principal collected	57	(1,196)
Net cash for acquisitions	(6)	0
Purchases of premises and equipment	(56)	(21)
Proceeds from sales of foreclosed property or OREO	92	238
Other, net	43	14
Net cash from investing activities	1,459	(2,255)
Cash Flows From Financing Activities:
Net change in deposits	(1,723)	(782)
Net change in short-term borrowings	375	(130)
Proceeds from issuance of long-term debt	10	1,058
Repayment of long-term debt	(766)	(9)
Net cash from common stock transactions	(15)	(9)
Cash dividends paid on common stock	(301)	(112)
Cash dividends paid on preferred stock	(30)	0
Other, net	(15)	74
Net cash from financing activities	(2,465)	90
Net Change in Cash and Cash Equivalents	(541)	(292)
Cash and Cash Equivalents at Beginning of Period	3,753	4,344
Cash and Cash Equivalents at End of Period	3,212	4,052
Supplemental Disclosure of Cash Flow Information:
Cash paid (received) during the period for interest	234	310
Cash paid (received) during the period for income taxes	91	60
Noncash investing activities:
Transfers of loans to foreclosed property	$ 62	$ 149