Consolidated Statements of Income (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Noninterest Income
Trust, Investment and Other Servicing Fees	$ 937.7	$ 808.2
Foreign Exchange Trading Income	78.5	48.1
Treasury Management Fees	14.0	14.7
Security Commissions and Trading Income	27.2	20.5
Other Operating Income	34.8	39.7
Total Noninterest Income	1,092.0	930.9
Net Interest Income
Interest Income	505.9	410.3
Interest Expense	121.9	56.8
Investment Security Gains (Losses), net	(0.2)	(0.3)
Net Interest Income	384.0	353.5
Provision for Credit Losses	(3.0)	(1.0)
Net Interest Income after Provision for Credit Losses	387.0	354.5
Noninterest Expense
Compensation	471.7	425.8
Employee Benefits	91.7	77.8
Outside Services	171.4	153.1
Equipment and Software	140.0	127.3
Occupancy	51.5	45.4
Other Operating Expense	69.0	65.1
Total Noninterest Expense	995.3	894.5
Income before Income Taxes	483.7	390.9
Provision for Income Taxes	102.1	114.8
Net Income	381.6	276.1
Preferred Stock Dividends	17.3	20.7
Net Income Applicable to Common Stock	$ 364.3	$ 255.4
Per Common Share
Net Income — Basic (in dollars per share)	$ 1.59	$ 1.10
Net Income - Diluted (in dollars per share)	$ 1.58	$ 1.09
Average number of common shares outstanding
Basic (in shares)	225,681,167	229,059,540
Diluted (in shares)	227,047,519	230,630,876
Changes in other-than-temporary-impairment (OTTI) losses	$ (0.2)	$ (0.1)
Other Security Gains (Losses), net	0.0	(0.2)
Investment Security Gains (Losses), net	(0.2)	(0.3)
Total Trust, Investment and Other Servicing Fees
Revenue from contract with customer	$ 937.7	$ 808.2