Consolidated Statements of Cash Flows (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014		Mar. 31, 2013
Cash Flows from Operating Activities:
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	$ 411		$ 358
Adjustments to reconcile net income/(loss) to net cash provided by operating activities:
Depreciation, Amortization and Accretion, Net	163		184
Origination of Mortgage Servicing Rights (MSRs)	(32)		(110)
Provisions for credit losses and foreclosed property	104		228
Mortgage repurchase provision	5		14
Stock Option Compensation And Amortization Of Restricted Stock Compensation	3		8
Excess Tax Benefit from Share-based Compensation, Operating Activities	(3)		0
Gain (Loss) on Sale of Securities, Net	(1)	[1]	2	[1]
Net gain on sale of assets	(70)		(198)
Net decrease/(increase) in loans held for sale	353		404
Net (increase)/decrease in other assets	117		(437)
Increase (Decrease) in Other Operating Liabilities	(222)		172
Net Cash Provided by (Used in) Operating Activities	830		621
Cash Flows from Investing Activities:
Proceeds from Maturities, Prepayments and Calls of Available-for-sale Securities	762		1,614
Proceeds from sales of securities available for sale	69		33
Purchases of securities available for sale	(1,436)		(3,678)
Proceeds from sales of trading securities	59		0
Proceeds from (payments for) Originations and Purchases of Loans Held-for-investment	(1,667)		(167)
Proceeds from sales of loans	94		494
Capital expenditures	(34)		(28)
Payments related to acquisitions, including contingent consideration	8		0
Proceeds from Sale of Other Real Estate	96		145
Net cash (used in)/provided by investing activities	(2,065)		(1,587)
Cash Flows from Financing Activities:
Net (decrease)/increase in total deposits	3,197		(2,401)
Net increase/(decrease) in funds purchased, securities sold under agreements to repurchase, and other short-term borrowings	(60)		1,134
Proceeds from Issuance of Long-term Debt	876		12
Repayment of long-term debt	(28)		(44)
Payments for Repurchase of Common Stock	(50)		0
Common and preferred dividends paid	(63)		(36)
Stock option activity	7		6
Net cash provided by/(used in) financing activities	3,879		(1,329)
Net (decrease)/increase in cash and cash equivalents	2,644		(2,295)
Cash and cash equivalents at beginning of period	5,263		8,257
Cash and cash equivalents at end of period	7,907		5,962
Supplemental Disclosures:
Transfer of Loans Held-for-sale to Portfolio Loans	17		12
Loans transferred from loans to loans held for sale	115		57
Transfer to Other Real Estate	$ 42		$ 66

[1] Total OTTI was $0 for the three months ended March 31, 2014 and 2013. Of total OTTI, losses of $0 and $1 million were recognized in earnings, and gains of $0 and $1 million were recognized as non-credit-related OTTI in OCI for the three months ended March 31, 2014 and 2013, respectively.