Consolidated Statements of Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Noninterest Income
Trust, Investment and Other Servicing Fees	$ 1,111.9	$ 1,078.7	$ 3,271.8	$ 3,390.5
Foreign Exchange Trading Income	51.8	64.7	154.9	223.2
Treasury Management Fees	7.5	9.3	23.8	31.0
Security Commissions and Trading Income	30.9	32.1	101.7	101.1
Other Operating Income	68.2	57.3	170.2	144.0
Investment Security Gains (Losses), net	0.0	(0.3)	6.9	(0.3)
Total Noninterest Income	1,270.3	1,241.8	3,729.3	3,889.5
Net Interest Income
Interest Income	1,935.0	799.3	5,125.4	1,707.6
Interest Expense	1,478.8	286.3	3,626.5	354.9
Net Interest Income	456.2	513.0	1,498.9	1,352.7
Provision for Credit Losses	14.0	0.5	13.5	7.0
Net Interest Income after Provision for Credit Losses	442.2	512.5	1,485.4	1,345.7
Noninterest Expense
Compensation	558.1	553.3	1,757.8	1,663.7
Employee Benefits	100.8	109.9	303.2	333.8
Outside Services	229.6	220.9	671.3	647.4
Equipment and Software	232.5	212.4	693.5	609.4
Occupancy	58.7	51.3	173.8	153.4
Other Operating Expense	98.5	82.0	296.1	251.6
Total Noninterest Expense	1,278.2	1,229.8	3,895.7	3,659.3
Income before Income Taxes	434.3	524.5	1,319.0	1,575.9
Provision for Income Taxes	106.5	129.7	324.8	395.6
Net Income	327.8	394.8	994.2	1,180.3
Preferred Stock Dividends	16.2	16.2	37.1	37.1
Net Income Applicable to Common Stock	$ 311.6	$ 378.6	$ 957.1	$ 1,143.2
Per Common Share
Net Income — Basic (in dollars per share)	$ 1.49	$ 1.80	$ 4.56	$ 5.44
Net Income - Diluted (in dollars per share)	$ 1.49	$ 1.80	$ 4.56	$ 5.43
Average Number of Common Shares Outstanding
Basic (in shares)	207,021,554	208,400,135	207,611,420	208,271,070
Diluted (in shares)	207,252,992	208,888,572	207,927,720	208,858,976