Consolidated Statements of Cash Flows - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Cash Flows from Operating Activities:
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	$ 916	$ 815
Adjustments to reconcile net income/(loss) to net cash provided by operating activities:
Gain (Loss) on Disposition of Business	0	105
Depreciation, Amortization and Accretion, Net	404	328
Payments to Acquire Mortgage Servicing Rights (MSR)	(117)	(68)
Provisions for credit losses and foreclosed property	87	190
Stock Option Compensation And Amortization Of Restricted Stock Compensation	49	33
Excess Tax Benefit from Share-based Compensation, Operating Activities	17	4
Gain (Loss) on Sale of Securities, Net	(14)	2
Net gain on sale of assets	(114)	(173)
Net decrease/(increase) in loans held for sale	191	335
Increase (Decrease) in Trading Securities	(220)	(314)
Net (increase)/decrease in other assets	(327)	152
Increase (Decrease) in Other Operating Liabilities	(76)	(43)
Net Cash Provided by (Used in) Operating Activities	762	1,148
Cash Flows from Investing Activities:
Proceeds from Maturities, Prepayments and Calls of Available-for-sale Securities	3,194	1,730
Proceeds from sales of securities available for sale	1,477	69
Purchases of securities available for sale	(5,302)	(2,949)
Proceeds from sales of trading securities	0	59
Proceeds from (payments for) Originations and Purchases of Loans Held-for-investment	(894)	(5,612)
Proceeds from sales of loans	1,886	651
Servicing Assets at Fair Value, Purchased	(112)	(76)
Capital expenditures	(36)	(60)
Payments related to acquisitions, including contingent consideration	(30)	(8)
Proceeds from Divestiture of Businesses	0	193
Proceeds from Sale of Other Real Estate	126	187
Net cash (used in)/provided by investing activities	309	(5,816)
Cash Flows from Financing Activities:
Net (decrease)/increase in total deposits	4,370	3,526
Net increase/(decrease) in funds purchased, securities sold under agreements to repurchase, and other short-term borrowings	(3,069)	376
Proceeds from Issuance of Long-term Debt	1,195	2,704
Repayment of long-term debt	(3,987)	(39)
Payments for Repurchase of Common Stock	(290)	(133)
Common and preferred dividends paid	(261)	(179)
Stock option activity	30	9
Net cash provided by/(used in) financing activities	(2,012)	6,264
Net (decrease)/increase in cash and cash equivalents	(941)	1,596
Cash and cash equivalents at beginning of period	8,229	5,263
Cash and cash equivalents at end of period	7,288	6,859
Supplemental Disclosures:
Transfer of Loans Held-for-sale to Portfolio Loans	651	20
Loans transferred from loans to loans held for sale	1,696	2,821
Transfer to Other Real Estate	35	80
non-cash impact of deconsolidated assets	$ 0	$ 282