CONSOLIDATED STATEMENT OF CASH FLOWS (UNAUDITED) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014		Mar. 31, 2013
Cash flows from operating activities
Net income	$ 104		$ 183
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	32		83
Provision (credit) for credit losses	16	[1]	21	[1]
Realized gains on securities available-for-sale	(22)		(123)
Realized (gains) losses on securities held-to-maturity	2		(8)
Net change in other assets and liabilities	743		365
Net change in loans held for sale:
Originations of loans	(376)		(650)
Sales and collection of loans held for sale	385		804
Net change in trading assets and liabilities	32		1,005
Lower of amortized cost or fair value adjustments on loans held for sale	1		3
Loss (gain) on instruments designated at fair value and related derivatives	(28)		27
Net cash provided by (used in) operating activities	889		1,710
Cash flows from investing activities
Net change in interest bearing deposits with banks	(3,852)		(3,780)
Net change in securities purchased under agreements to resell	767		(3,212)
Securities available-for-sale:
Purchases of securities available-for-sale	(5,783)		(6,357)
Proceeds from sales of securities available-for-sale	6,855		12,378
Proceeds from maturities of securities available-for-sale	701		1,909
Securities held-to-maturity:
Proceeds from sales of securities held-to-maturity	0		79
Proceeds from maturities of securities held-to-maturity	75		116
Change in loans:
Originations, net of collections	(2,014)		222
Loans sold to third parties	11		475
Net cash used for acquisitions of properties and equipment	(5)		(6)
Other, net	0		(15)
Net cash provided by (used in) investing activities	(3,245)		1,809
Cash flows from financing activities
Net change in deposits	(7,147)		(716)
Debt:
Net change in short-term borrowings	9,632		(3,131)
Issuance of long-term debt	767		1,203
Repayment of long-term debt	(690)		(942)
Other increases (decreases) in capital surplus	6		(36)
Dividends paid	(18)		(18)
Net cash provided by (used in) financing activities	2,550		(3,640)
Net change in cash and due from banks	194		(121)
Cash and due from banks at beginning of period	961		1,359
Cash and due from banks at end of period	$ 1,155		$ 1,238

[1] The provision assigned to the segments is based on the segments' net charge offs and the change in allowance for credit losses.