Consolidated Statement of Cash Flows (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Operating Activities:
Net income	$ 2,136	$ 2,061	$ 1,920
Adjustments to reconcile net income to net cash (used in) provided by operating activities:
Deferred income tax expense	112	225	218
Amortization of other intangible assets	214	198	200
Other non-cash adjustments for depreciation, amortization and accretion, net	461	291	218
Losses (gains) related to investment securities, net	9	(23)	(67)
Change in trading account assets, net	(206)	70	(183)
Change in accrued interest and fees receivable, net	(153)	(148)	(89)
Change in collateral deposits, net	(4,046)	(1,443)	817
Change in unrealized (gains) losses on foreign exchange derivatives, net	(128)	982	(622)
Change in other assets, net	(819)	(360)	1,269
Change in trading liabilities, net	0	0	(441)
Change in accrued expenses and other liabilities, net	113	(250)	(147)
Claims resolution	0	(362)	0
Other, net	333	324	281
Net cash (used in) provided by operating activities	(1,974)	1,927	3,374
Investing Activities:
Net (increase) decrease in interest-bearing deposits with banks	(13,494)	8,123	(36,652)
Net (increase) decrease in securities purchased under resale agreements	(1,214)	2,029	(4,117)
Proceeds from sales of available-for-sale securities	10,261	5,399	16,272
Proceeds from maturities of available-for-sale securities	37,529	44,375	44,810
Purchases of available-for-sale securities	(39,097)	(60,812)	(78,748)
Proceeds from maturities of available-for-sale securities	2,080	3,176	3,653
Purchases of held-to-maturity securities	(8,415)	(3,577)	(457)
Net (increase) decrease in loans	(1,214)	(2,303)	1,638
Business acquisitions, net of cash acquired	0	(511)	(214)
Purchases of equity investments and other long-term assets	(272)	(251)	(69)
Divestitures	18	0
Purchases of premises and equipment	(388)	(355)	(298)
Other, net	121	116	287
Net cash used in investing activities	(14,085)	(4,591)	(53,895)
Financing Activities:
Net (decrease) increase in time deposits	(14,507)	7,627	(124)
Net increase (decrease) in all other deposits	32,594	(733)	59,066
Net decrease in short-term borrowings	(1,155)	(1,587)	(8,555)
Proceeds from issuance of long-term debt, net of issuance costs	2,485	998	1,986
Payments for long-term debt and obligations under capital leases	(134)	(1,781)	(2,486)
Proceeds from issuance of preferred stock	0	488	500
Proceeds from exercises of common stock options	121	53	49
Purchases of common stock	(2,040)	(1,440)	(675)
Repurchases of common stock for employee tax withholding	(189)	(101)	(63)
Payments for cash dividends	(486)	(463)	(295)
Net cash provided by financing activities	16,689	3,061	49,403
Net increase (decrease)	630	397	(1,118)
Cash and due from banks at beginning of period	2,590	2,193	3,311
Cash and due from banks at end of period	3,220	2,590	2,193
Supplemental disclosure:
Interest paid	416	516	611
Income taxes (refunded) paid, net	$ 406	$ (186)	$ 305