Consolidated Statements of Cash Flows (Unaudited) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Cash Flows from Operating Activities:
Net income including noncontrolling interests	$ 373	$ 470
Adjustments to reconcile net income to net cash provided by operating activities:
(Reversal of) provision for loan losses	(15)	(196)
(Reversal of) provision for losses on off-balance sheet commitments	(3)	(31)
Depreciation, amortization and accretion, net	234	84
Stock-based compensation - restricted stock units	(4)	1
Deferred income taxes	(15)	169
Net gains on sales of securities	(47)	(57)
Net decrease (increase) in trading account assets	(102)	101
Net decrease (increase) in other assets	82	(136)
Net increase (decrease) in trading account liabilities	(63)	(44)
Net increase (decrease) in other liabilities	(430)	283
Loans originated for resale	(6)	(14)
Net proceeds from sale of loans originated for resale	6	15
Other, net	(52)	(14)
Total adjustments	(415)	161
Net cash provided by operating activities	(42)	631
Cash Flows from Investing Activities:
Proceeds from sale of securities available for sale	4,124	3,831
Proceeds from matured and called securities available for sale	3,125	2,447
Purchases of securities available for sale and held to maturity	(4,830)	(3,481)
Proceeds from matured securities held to maturity	78	46
Purchases of premises and equipment, net	(41)	(12)
Proceeds from sales of loans	189	140
Net decrease (increase) in loans	(2,043)	(1,289)
Proceeds from FDIC loss share agreements	36	96
Other, net	(10)	(3)
Net cash provided by investing activities	628	1,775
Cash Flows from Financing Activities:
Net increase (decrease) in deposits	(977)	(2,773)
Net increase (decrease) in commercial paper and other short-term borrowings	(648)	1,482
Proceeds from issuance of long-term debt	895	2,000
Repayment of long-term debt	(1,125)	(513)
Other, net	1	1
Change in noncontrolling interests	(6)	11
Net cash provided by (used in) financing activities	(1,860)	208
Net change in cash and cash equivalents	(1,274)	2,614
Cash and cash equivalents at beginning of period	4,195	1,174
Cash and cash equivalents at end of period	2,921	3,788
Cash Paid During the Period For:
Interest	205	173
Income taxes, net	175	84
Supplemental Schedule of Noncash Investing and Financing Activities:
Transfer of loans held for investment to securities available for sale
Securities available for sale transferred to securities held to maturity	155
Net transfer of loans held for investment to loans held for sale	143	168
Transfer of loans held for investment to other real estate owned assets (OREO)	$ 52	$ 76