Consolidated Statements of Cash Flows (Unaudited) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Operating activities:
Income from continuing operations, net of tax	$ 3,453	$ 3,479
Loss from discontinued operations, net of tax	(24)	(210)
Net income	3,429	3,269
Adjustments to reconcile net income to cash provided by operating activities:
Provision for credit losses	2,432	2,496
Depreciation and amortization, net	1,532	1,647
Net gain on sales of securities available for sale	(18)	(3)
Impairment losses on securities available for sale	15	40
Loans held for sale:
Originations and purchases	(3,355)	(972)
Gain on sales	(35)	(23)
Proceeds from sales and paydowns	3,171	995
Stock plan compensation expense	167	172
Changes in operating assets and liabilities:
Decrease in interest receivable	150	390
Decrease in other assets	607	1,191
Decrease in interest payable	(58)	(174)
Decrease in other liabilities	(375)	(298)
Net cash provided (used) by discontinued operations	39	(291)
Net cash provided by operating activities	7,701	8,439
Investing activities:
Purchases of securities	(14,078)	(13,084)
Proceeds from paydowns and maturities of securities	6,717	11,785
Proceeds from sales of securities	6,827	1,355
Net (increase) decrease in loans held for investment	(8,351)	9,119
Principal recoveries of loans previously charged off	1,203	1,204
Purchases of premises and equipment	(405)	(622)
Net cash provided (used) by investing activities	(8,087)	9,757
Financing activities:
Decrease in restricted cash for securitization investors	469	38
Net decrease in deposits	(265)	(5,662)
Issuance of securitized debt obligations	2,995	1,450
Maturities and paydowns of securitized debt obligations	(2,808)	(3,304)
Issuance of senior and subordinated notes and junior subordinated debentures	7,713	934
Redemption of junior subordinated debentures	0	(3,641)
Maturities and redemptions of senior and subordinate notes	(2,375)	(500)
Net decrease in other borrowings	(4,030)	(12,279)
Net proceeds from issuances of common stock	73	64
Net proceeds from issuances of preferred stock	484	0
Proceeds from share-based payment activities	89	73
Dividends paid on common stock	(513)	(383)
Dividends paid on preferred stock	(46)	(39)
Purchases of treasury stock	(1,543)	(287)
Net cash provided (used) by financing activities	243	(23,536)
Decrease in cash and cash equivalents	(143)	(5,340)
Cash and cash equivalents at beginning of the period	6,291	11,058
Cash and cash equivalents at end of the period	6,148	5,718
Non-cash items:
Net transfers from loans held for investment to loans held for sale	38	6,808
Net debt exchange of senior and subordinated notes	0	1,968
Interest paid	1,248	1,550
Income tax paid	$ 1,109	$ 1,250