Consolidated Statement of Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Interest income
Loans and leases	$ 8,477	$ 8,021	$ 5,237
Investment securities:
Fully taxable	1,030	773	448
Exempt from federal taxes	64	66	51
Deposits at banks	1,452	1,360	509
Other	3	4	2
Total interest income	11,026	10,224	6,247
Interest expense
Savings and interest-checking deposits	2,514	1,746	271
Time deposits	781	671	24
Short-term borrowings	242	292	19
Long-term borrowings	637	400	111
Total interest expense	4,174	3,109	425
Net interest income	6,852	7,115	5,822
Provision for credit losses	610	645	517
Net interest income after provision for credit losses	6,242	6,470	5,305
Other income
Mortgage banking revenues	436	409	357
Service charges on deposit accounts	514	475	447
Trust income	675	680	741
Brokerage services income	121	102	88
Trading account and other non-hedging derivative gains	39	49	27
Gain (loss) on bank investment securities	10	4	(6)
Other revenues from operations	632	809	703
Noninterest income	2,427	2,528	2,357
Other expense
Salaries and employee benefits	3,162	2,997	2,787
Equipment and net occupancy	512	520	474
Outside data processing and software	492	437	376
Professional and other services	344	413	509
FDIC assessments	146	315	90
Advertising and marketing	104	108	90
Amortization of core deposit and other intangible assets	53	62	56
Other costs of operations	546	527	668
Total other expense	5,359	5,379	5,050
Income (loss) before taxes	3,310	3,619	2,612
Income taxes	722	878	620
Net income	2,588	2,741	1,992
Net income available to common shareholders
Net income available to common stockholders, basic	2,449	2,636	1,891
Net income available to common stockholders, diluted	$ 2,449	$ 2,636	$ 1,891
Net income per common share
Earnings per share, basic (in USD per share)	$ 14.71	$ 15.85	$ 11.59
Earnings per share, diluted (in USD per share)	$ 14.64	$ 15.79	$ 11.53