CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Interest income on:
Loans, including fees	$ 1,386	$ 1,463	$ 4,105	$ 4,316
Debt securities	293	241	845	669
Loans held for sale	9	11	26	28
Other earning assets	108	105	329	293
Total interest income	1,796	1,820	5,305	5,306
Interest expense on:
Deposits	456	507	1,345	1,504
Short-term borrowings	8	10	13	24
Long-term borrowings	75	85	237	190
Total interest expense	539	602	1,595	1,718
Net interest income	1,257	1,218	3,710	3,588
Provision for credit losses	105	113	355	367
Net interest income after provision for credit losses	1,152	1,105	3,355	3,221
Non-interest income:
Total Noninterest Income	659	572	1,895	1,680
Non-interest expense:
Salaries and employee benefits	671	645	1,954	1,912
Equipment and software expense	106	101	309	302
Net occupancy expense	72	69	$ 214	211
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Excluding Service Cost, Statement of Income or Comprehensive Income [Extensible Enumeration]			Other
Other	254	254	$ 738	779
Total non-interest expense	1,103	1,069	3,215	3,204
Income before income taxes	708	608	2,035	1,697
Income tax expense	139	118	413	338
Net income	569	490	1,622	1,359
Net income available to common shareholders	$ 548	$ 446	$ 1,547	$ 1,266
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Basic	890	914	898	917
Diluted	894	918	902	919
Earnings Per Share [Abstract]
Basic	$ 0.62	$ 0.49	$ 1.72	$ 1.38
Diluted	$ 0.61	$ 0.49	$ 1.72	$ 1.38
Service charges on deposit accounts
Non-interest income:
Total Noninterest Income	$ 160	$ 158	$ 472	$ 457
Card and ATM fees
Non-interest income:
Total Noninterest Income	122	118	364	354
Investment management and trust fee income
Non-interest income:
Total Noninterest Income	91	85	267	249
Capital Markets [Member]
Non-interest income:
Total Noninterest Income	104	92	267	251
Mortgage income
Non-interest income:
Total Noninterest Income	38	36	126	111
Securities gains, net [Member]
Non-interest income:
Total Noninterest Income	(27)	(78)	(53)	(178)
Other [Member]
Non-interest income:
Total Noninterest Income	$ 171	$ 161	$ 452	$ 436

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024
Operating activities:
Net income	$ 1,622	$ 1,359
Adjustments to reconcile net income to net cash from operating activities:
Provision for credit losses	355	367
Depreciation, amortization and accretion, net	62	123
Securities (gains) losses, net	53	178
Deferred income tax expense	105	33
Originations and purchases of loans held for sale	(4,034)	(4,443)
Proceeds from sales of loans held for sale	4,177	4,347
(Gain) loss on sale of loans, net	(44)	(43)
Net change in operating assets and liabilities:
Other earning assets	103	(208)
Interest receivable and other assets	282	332
Other liabilities	(173)	(306)
Other	(8)	79
Net cash from operating activities	2,500	1,818
Investing activities:
Proceeds from maturities of debt securities held to maturity	499	31
Proceeds from sales of debt securities available for sale	1,239	3,825
Proceeds from maturities of debt securities available for sale	2,579	2,356
Purchases of debt securities available for sale	(5,949)	(8,074)
Net (payments for) proceeds from bank-owned life insurance	4	14
Proceeds from sales of loans	470	73
Purchases of loans	(307)	(536)
Net change in loans	56	1,792
Purchases of mortgage servicing rights	(27)	(137)
Net purchases of other assets	(200)	(104)
Net cash from investing activities	(1,636)	(760)
Financing activities:
Net change in deposits	2,731	(1,412)
Net change in short-term borrowings	800	1,500
Proceeds from long-term borrowings	0	3,740
Payments on long-term borrowings	(1,250)	(100)
Cash dividends on common stock	(677)	(662)
Cash dividends on preferred stock	(71)	(78)
Proceeds from Issuance of Preferred Stock and Preference Stock	0	(489)
Payments for Repurchase of Redeemable Preferred Stock	(350)	(500)
Repurchases of common stock	(637)	(290)
Taxes paid related to net share settlement of equity awards	(23)	(25)
Net cash from financing activities	523	2,662
Net change in cash and cash equivalents	1,387	3,720
Cash and cash equivalents at beginning of year	10,712	6,801
Cash and cash equivalents at end of year	$ 12,099	$ 10,521

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Sep. 30, 2025	Dec. 31, 2024
Assets
Cash and due from banks	$ 3,073	$ 2,893
Interest-bearing deposits in other banks	9,026	7,819
Debt Securities held to maturity	5,769	4,427
Debt securities available for sale	26,886	26,224
Loans held for sale	573	594
Loans, net of unearned income	96,125	96,727
Allowance for loan losses	(1,581)	(1,613)
Net loan losses	94,544	95,114
Other earning assets	1,513	1,616
Premises, equipment and software, net	1,742	1,673
Interest receivable	574	572
Goodwill	5,733	5,733
Servicing Asset at Fair Value, Amount	976	1,007
Other identifiable intangible assets, net	$ 146	169
Derivative Asset, Statement of Financial Position [Extensible Enumeration]	Other assets
Other assets	$ 9,385	9,461
Total assets	159,940	157,302
Deposits:
Noninterest-bearing Deposit Liabilities	39,768	39,138
Interest-bearing	90,566	88,465
Total deposits	130,334	127,603
Borrowed funds:
Short-term borrowings	1,300	500
Long-term borrowings	4,785	5,993
Total borrowed funds	$ 6,085	6,493
Derivative Liability, Statement of Financial Position [Extensible Enumeration]	Other liabilities
Other liabilities	$ 4,426	5,296
Total liabilities	140,845	139,392
Equity:
Preferred stock	1,369	1,715
Common stock	9	9
Additional paid-in capital	10,780	11,394
Retained earnings	9,922	9,060
Treasury stock, at cost	(1,371)	(1,371)
Accumulated other comprehensive income (loss), net	(1,660)	(2,928)
Total shareholders’ equity	19,049	17,879
Noncontrolling interest	46	31
Total equity	19,095	17,910
Total liabilities and equity	$ 159,940	$ 157,302