Consolidated Balance Sheet (USD $) In Millions, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Assets
Cash and Due from Banks	$ 3,773.5	$ 3,752.7
Federal Funds Sold and Securities Purchased under Agreements to Resell	251.5	60.8
Interest-Bearing Deposits with Banks	18,694.8	18,803.5
Federal Reserve Deposits and Other Interest-Bearing	5,828.6	7,619.7
Securities
Available for Sale	27,171.9	28,643.5
Held to Maturity (Fair value of $2,943.3 and $2,394.8)	2,931.7	2,382.0
Trading Account	6.9	8.0
Total Securities	30,110.5	31,033.5
Loans and Leases
Commercial	12,682.0	12,897.2
Personal	16,180.9	16,607.3
Total Loans and Leases	28,862.9	29,504.5
Allowance for Credit Losses Assigned to Loans and Leases	(294.1)	(297.9)
Buildings and Equipment	457.2	469.9
Client Security Settlement Receivables	816.5	2,049.1
Goodwill	529.5	537.8
Other Assets	4,125.9	3,930.2
Total Assets	93,156.8	97,463.8
Deposits
Demand and Other Noninterest-Bearing	13,908.9	20,519.0
Savings and Money Market	14,819.8	15,189.7
Savings Certificates and Other Time	2,296.1	2,466.1
Non U.S. Offices - Noninterest-Bearing	4,974.9	3,512.8
- Interest-Bearing	39,822.4	39,720.2
Total Deposits	75,822.1	81,407.8
Federal Funds Purchased	1,320.5	780.2
Securities Sold under Agreements to Repurchase	490.2	699.8
Other Borrowings	1,435.3	367.4
Senior Notes	2,402.0	2,405.8
Long-Term Debt	1,198.4	1,421.6
Floating Rate Capital Debt	277.1	277.0
Other Liabilities	2,599.1	2,577.2
Total Liabilities	85,544.7	89,936.8
Stockholders' Equity
Common Stock, $1.66 2/3 Par Value; Authorized 560,000,000 shares; Outstanding shares of 239,239,836 and 238,914,988	408.6	408.6
Additional Paid-In Capital	995.2	1,012.7
Retained Earnings	6,793.8	6,702.7
Accumulated Other Comprehensive Loss	(284.1)	(283.0)
Treasury Stock (5,931,688 and 6,256,536 shares, at cost)	(301.4)	(314.0)
Total Stockholders' Equity	7,612.1	7,527.0
Total Liabilities and Stockholders' Equity	$ 93,156.8	$ 97,463.8