Consolidated Statement Of Condition (USD $) In Millions, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Assets:
Cash and due from banks	$ 6,432	$ 2,193
Interest-bearing deposits with banks	31,583	58,886
Securities purchased under resale agreements	8,264	7,045
Trading account assets	611	707
Investment securities available for sale	107,129	99,832
Investment securities held to maturity (fair value of $8,622 and $9,362)	8,360	9,321
Loans and leases (less allowance for losses of $22 and $22)	14,024	10,031
Premises and equipment (net of accumulated depreciation of $3,955 and $3,673)	1,720	1,747
Accrued income receivable	1,933	1,822
Goodwill	5,650	5,645
Other intangible assets	2,311	2,459
Other assets	16,505	17,139
Total assets	204,522	216,827
Deposits:
Noninterest-bearing	40,963	59,229
Interest-bearing - U.S.	11,107	7,148
Interest-bearing - Non-U.S.	94,219	90,910
Total deposits	146,289	157,287
Securities sold under repurchase agreements	7,933	8,572
Federal funds purchased	169	656
Other short-term borrowings	5,181	4,766
Accrued expenses and other liabilities	17,783	18,017
Long-term debt	6,418	8,131
Total liabilities	183,773	197,429
Commitments and contingencies (note 6)
Shareholders' equity:
Common stock, $1 par: 750,000,000 shares authorized; 503,917,643 and 503,965,849 shares issued	504	504
Surplus	9,634	9,557
Retained earnings	11,392	10,176
Accumulated other comprehensive loss	186	(659)
Treasury stock, at cost (35,090,753 and 16,541,985 shares)	(1,455)	(680)
Total shareholders' equity	20,749	19,398
Total liabilities and shareholders' equity	204,522	216,827
Series C Preferred Stock [Member]
Shareholders' equity:
Preferred stock, no par: 3,500,000 shares authorized; 5,000 and 5,001 shares issued and outstanding, respectively	488	0
Series A Preferred Stock [Member]
Shareholders' equity:
Preferred stock, no par: 3,500,000 shares authorized; 5,000 and 5,001 shares issued and outstanding, respectively	$ 0	$ 500