CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
OPERATING ACTIVITIES
Net income		$ 1,831	$ 1,509	$ 1,608
Adjustments to reconcile net income to net change due to operating activities:
Provision (benefit) for credit losses		608	687	687
Net change in Loans held for sale		(414)	(24)	98
Depreciation, amortization, and accretion		478	498	478
Deferred income tax expense (benefit)		(82)	(177)	(242)
Share-based compensation		120	97	87
Net gain on sale of assets		(24)	(18)	(28)
Net (increase) decrease in Other assets		89	(261)	612
Net increase (decrease) in Other liabilities		(395)	(310)	(339)
Net change due to operating activities		2,211	2,001	2,961
Investment securities:
Purchases of debt securities available for sale		(9,463)	(9,755)	(10,087)
Proceeds from maturities and paydowns of debt securities available for sale		4,018	3,304	2,001
Proceeds from sales of debt securities available for sale		3,797	3,619	2,941
Proceeds from maturities and paydowns of debt securities held to maturity		750	662	761
Net (increase) decrease in Interest-bearing deposits in banks		(326)	(230)	(102)
Purchases of loans		(680)	(655)	0
Sales of loans		1,891	207	2,793
Net (increase) decrease in Loans and leases		(5,433)	6,050	7,174
Capital expenditures, net		(174)	(122)	(172)
Other		(347)	(93)	(61)
Net change due to investing activities		(5,967)	2,987	5,248
FINANCING ACTIVITIES
Net increase (decrease) in Deposits		8,537	(2,566)	(3,382)
Net increase (decrease) in Short-term borrowed funds		58	(505)	502
Proceeds from issuance of long-term borrowed funds		8,534	13,185	25,983
Repayments of long-term borrowed funds		(9,744)	(14,286)	(28,418)
Treasury stock purchased		(600)	(1,050)	(906)
Net proceeds from issuance of preferred stock		393	392	0
Redemption of preferred stock		(400)	(300)	0
Dividends paid to common stockholders		(755)	(769)	(808)
Dividends paid to preferred stockholders		(133)	(134)	(120)
Other		(8)	18	21
Net change due to financing activities		5,882	(6,015)	(7,128)
Net change in cash and cash equivalents	[1]	2,126	(1,027)	1,081
Cash and cash equivalents at beginning of period	[1]	10,601	11,628	10,547
Cash and cash equivalents at end of period	[1]	12,727	10,601	11,628
Supplemental disclosures:
Interest paid	[2]	4,040	4,375	3,640
Non-cash items:
Transfer of loans from loans held for investment to LHFS		1,944	299	2,617
Loans securitized and transferred to AFS securities		$ 112	$ 329	$ 103

[1] Cash and cash equivalents include Cash and due from banks and Interest-bearing cash and due from banks as reflected on the Consolidated Balance Sheets

[2] See Note 21 for information regarding income taxes paid.