Consolidated Statements of Cash Flows (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Cash Flows From Operating Activities:
Net Income	$ 1,056	$ 832
Adjustments to reconcile net income to net cash from operating activities:
Provision for credit losses	134	440
Adjustment to income tax provision	0	281
Depreciation	161	153
Amortization of intangibles	46	54
Equity-based compensation	56	60
(Gain) loss on securities, net	(2)	(46)
Net write-downs/losses on foreclosed property	18	11
Net change in operating assets and liabilities:
LHFS	(470)	1,299
Other assets	366	(499)
Accounts payable and other liabilities	(563)	(228)
Other, net	75	(49)
Net cash from operating activities	877	2,308
Cash Flows From Investing Activities:
Proceeds from sales of AFS securities	1,172	931
Proceeds from maturities, calls and paydowns of AFS securities	1,921	3,408
Purchases of AFS securities	(1,644)	(4,371)
Proceeds from maturities, calls and paydowns of HTM securities	726	2,076
Purchases of HTM securities	(3,067)	(2,251)
Originations and purchases of loans and leases, net of principal collected	(4,079)	(2,002)
Net cash for business combinations	1,025	(6)
Proceeds from sales of foreclosed property	134	191
Other, net	270	233
Net cash from investing activities	(3,542)	(1,791)
Cash Flows From Financing Activities:
Net change in deposits	2,883	(1,996)
Net change in short-term borrowings	(159)	328
Proceeds from issuance of long-term debt	2,407	1,140
Repayment of long-term debt	(2,040)	(773)
Net cash from preferred stock transactions		487
Cash dividends paid on common stock	(321)	(455)
Cash dividends paid on preferred stock	(74)	(73)
Other, net	252	165
Net cash from financing activities	2,948	(1,177)
Net Change in Cash and Cash Equivalents	283	(660)
Cash and Cash Equivalents at Beginning of Period	2,165	3,039
Cash and Cash Equivalents at End of Period	2,448	2,379
Supplemental Disclosure of Cash Flow Information:
Cash paid during the period for interest	397	483
Cash paid during the period for income taxes	384	369
Noncash investing activities:
Transfers of loans to foreclosed assets	$ 228	$ 269