Consolidated Statements of Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Noninterest Income
Foreign Exchange Trading Income	$ 307.2	$ 209.9	$ 236.6
Treasury Management Fees	51.8	56.4	62.8
Security Commissions and Trading Income	98.3	89.6	81.4
Other Operating Income	127.5	157.5	241.2
Investment Security Losses, net	(1.0)	(1.6)	(3.2)
Total Noninterest Income	4,337.5	3,946.1	3,726.9
Net Interest Income
Interest Income	2,321.4	1,769.4	1,416.9
Interest Expense	698.7	340.2	182.0
Net Interest Income	1,622.7	1,429.2	1,234.9
Provision for Credit Losses	(14.5)	(28.0)	(26.0)
Net Interest Income after Provision for Credit Losses	1,637.2	1,457.2	1,260.9
Noninterest Expense
Compensation	1,806.9	1,733.7	1,541.1
Employee Benefits	356.7	319.9	293.3
Outside Services	739.4	668.4	627.1
Equipment and Software	582.2	524.0	467.4
Occupancy	201.1	191.8	177.4
Other Operating Expense	330.6	331.6	364.4
Total Noninterest Expense	4,016.9	3,769.4	3,470.7
Income before Income Taxes	1,957.8	1,633.9	1,517.1
Provision for Income Taxes	401.4	434.9	484.6
NET INCOME	1,556.4	1,199.0	1,032.5
Preferred Stock Dividends	46.4	49.8	23.4
Net Income Applicable to Common Stock	$ 1,510.0	$ 1,149.2	$ 1,009.1
PER COMMON SHARE
Net Income - Basic (in dollars per share)	$ 6.68	$ 4.95	$ 4.35
Net Income - Diluted (in dollars per share)	$ 6.64	$ 4.92	$ 4.32
Average Number of Common Shares Outstanding - Basic (in shares)	223,148,335	228,257,664	227,580,584
Average Number of Common Shares Outstanding - Diluted (in shares)	224,488,326	229,654,401	229,151,406
Note: Changes in Other-Than-Temporary-Impairment (OTTI) Losses	$ (0.5)	$ (0.2)	$ (3.7)
Other Security Gains/(Losses), net	(0.5)	(1.4)	0.5
Investment Security Losses, net	(1.0)	(1.6)	(3.2)
Total Trust, Investment and Other Servicing Fees
Noninterest Income
Revenue from contract with customer	$ 3,753.7	$ 3,434.3	$ 3,108.1