Consolidated Statements of Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Noninterest Income
Trust, Investment and Other Servicing Fees	$ 777.2	$ 756.8	$ 1,525.4	$ 1,484.3
Foreign Exchange Trading Income	64.4	74.8	124.9	146.4
Treasury Management Fees	16.0	16.1	32.2	32.4
Security Commissions and Trading Income	20.6	20.0	39.5	39.8
Other Operating Income	141.2	137.4	179.3	176.0
Investment Security Gains (Losses), net (Note)	(2.4)	(0.4)	(2.1)	(0.3)
Total Noninterest Income	1,017.0	1,004.7	1,899.2	1,878.6
Net Interest Income
Interest Income	344.7	288.8	696.7	587.6
Interest Expense	45.0	37.6	89.2	75.8
Net Interest Income	299.7	251.2	607.5	511.8
Provision for Credit Losses	(3.0)	(10.0)	(1.0)	(14.5)
Net Interest Income after Provision for Credit Losses	302.7	261.2	608.5	526.3
Noninterest Expense
Compensation	389.5	361.9	768.3	716.2
Employee Benefits	72.2	73.2	142.8	146.1
Outside Services	159.0	147.2	308.9	282.3
Equipment and Software	118.0	114.4	232.2	224.7
Occupancy	45.3	43.0	86.2	86.0
Other Operating Expense	141.0	114.8	215.4	188.2
Total Noninterest Expense	925.0	854.5	1,753.8	1,643.5
Income before Income Taxes	394.7	411.4	753.9	761.4
Provision for Income Taxes	134.0	142.2	251.4	261.5
Net Income	260.7	269.2	502.5	499.9
Preferred Stock Dividends	5.8	5.8	11.7	11.7
Net Income Applicable to Common Stock	$ 254.9	$ 263.4	$ 490.8	$ 488.2
Per Common Share
Net Income — Basic (in dollars per share)	$ 1.10	$ 1.11	$ 2.11	$ 2.06
Net Income - Diluted (in dollars per share)	$ 1.09	$ 1.10	$ 2.10	$ 2.04
Average number of common shares outstanding
Basic (in shares)	227,535,701	233,149,020	228,077,395	233,264,453
Diluted (in shares)	229,197,013	235,232,835	229,588,352	235,260,611
Changes in Other-Than-Temporary-Impairment (OTTI) Losses	$ (2.4)	$ 0.0	$ (2.4)	$ 0.0
Noncredit-related OTTI Losses Recorded in/(Reclassified from) OCI	0.0	0.0	0.0	0.0
Other Security Gains, net	0.0	(0.4)	0.3	(0.3)
Investment Security Gains (Losses), net	$ (2.4)	$ (0.4)	$ (2.1)	$ (0.3)