Consolidated Statements of Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Noninterest Income
Trust, Investment and Other Servicing Fees	$ 4,727.8	$ 4,361.8	$ 4,432.6
Foreign Exchange Trading Income	231.2	203.9	288.6
Treasury Management Fees	35.7	31.6	39.3
Security Commissions and Trading Income	150.5	135.0	136.2
Other Operating Income	1,157.4	228.7	191.3
Investment Security Gains (Losses), net	(189.3)	(169.5)	(214.0)
Total Noninterest Income	6,113.3	4,791.5	4,874.0
Net Interest Income
Interest Income	9,762.3	7,325.0	2,877.7
Interest Expense	7,585.2	5,343.0	990.5
Net Interest Income	2,177.1	1,982.0	1,887.2
Provision for Credit Losses	(3.0)	24.5	12.0
Net Interest Income after Provision for Credit Losses	2,180.1	1,957.5	1,875.2
Noninterest Expense
Compensation	2,471.1	2,321.8	2,248.0
Employee Benefits	417.8	405.2	437.4
Outside Services	998.0	906.5	880.3
Equipment and Software	1,075.0	945.5	838.8
Occupancy	216.8	232.3	219.1
Other Operating Expense	455.2	472.9	359.3
Total Noninterest Expense	5,633.9	5,284.2	4,982.9
Income before Income Taxes	2,659.5	1,464.8	1,766.3
Provision for Income Taxes	628.4	357.5	430.3
NET INCOME	2,031.1	1,107.3	1,336.0
Preferred Stock Dividends	41.8	41.8	41.8
Net Income Applicable to Common Stock	$ 1,989.3	$ 1,065.5	$ 1,294.2
PER COMMON SHARE
Net Income - Basic (in dollars per share)	$ 9.80	$ 5.09	$ 6.16
Net Income - Diluted (in dollars per share)	$ 9.77	$ 5.08	$ 6.14
Average Number of Common Shares Outstanding - Basic (in shares)	201,263,646	207,248,094	208,309,331
Average Number of Common Shares Outstanding - Diluted (in shares)	201,870,105	207,563,746	208,867,264