Consolidated Statement Of Income (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013		Mar. 31, 2012
Noninterest Income
Trust, Investment and Other Servicing Fees	$ 630.7		$ 575.2
Foreign Exchange Trading Income	59.5		61.9
Treasury Management Fees	16.8		17.4
Security Commissions and Trading Income	18.3		18.3
Other Operating Income	24.8		38.6
Investment security gains (losses), net	0.2	[1]	(2.4)	[1]
Total Noninterest Income	750.3		709.0
Net Interest Income
Interest Income	286.7		341.0
Interest Expense	60.6		84.6
Net Interest Income	226.1		256.4
Provision for Credit Losses	5.0		5.0
Net Interest Income after Provision for Credit Losses	221.1		251.4
Noninterest Expense
Compensation	320.3		321.6
Employee Benefits	63.3		68.1
Outside Services	129.9		128.2
Equipment and Software	91.4		90.8
Occupancy	43.2		41.8
Other Operating Expense	80.8		73.1
Total Noninterest Expense	728.9		723.6
Income before Income Taxes	242.5		236.8
Provision for Income Taxes	78.5		75.6
Net Income	164.0		161.2
Net Income Applicable to Common Stock	$ 164.0		$ 161.2
Per Common Share
Net Income - Basic	$ 0.68		$ 0.66
Net Income - Diluted	$ 0.67		$ 0.66
Average Number of Common Shares Outstanding - Basic	239,167,559		241,090,093
Average Number of Common Shares Outstanding - Diluted	240,189,215		241,556,096

[1] Changes in Other-Than-Temporary-Impairment (OTTI) Losses $ - $ (3.1 ) Noncredit-related OTTI Losses Recorded in/(Reclassified from) OCI - - Other Security Gains (Losses), net 0.2 0.7 Investment Security Gains (Losses), net $ 0.2 $ (2.4 )