CONSOLIDATED STATEMENT OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 968,917	$ 872,471
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for credit losses	130,000	104,000
Depreciation, amortization and accretion, net	158,939	150,468
Stock compensation costs	62,592	34,371
Deferred income tax benefit	(26,147)	(12,780)
Net gains on AFS debt securities	(934)	(1,979)
Net loss on other real estate owned (“OREO”) write-downs and sales	4,426	2,250
Loans held-for-sale:
Originations and purchases	(3,269)	(2,491)
Proceeds from sales and paydowns/payoffs of loans originally classified as held-for-sale	3,266	2,629
Net change in accrued interest receivable and other assets	(331,075)	58,797
Net change in accrued expenses and other liabilities	(173,587)	(295,554)
Other operating activities, net	(4,836)	(648)
Total adjustments	(180,625)	39,063
Net cash provided by operating activities	788,292	911,534
Net increase in:
Affordable housing partnership, tax credit and CRA investments	(265,527)	(224,828)
Interest-bearing deposits with banks	(19,476)	(105,275)
AFS debt securities:
Proceeds from sales	606,685	1,361,386
Proceeds from repayments, maturities and redemptions	2,566,741	1,073,539
Purchases	(4,877,885)	(6,158,520)
Loans held-for-investment:
Proceeds from sales of loans originally classified as held-for-investment	251,012	702,564
Purchases	(709,194)	(741,188)
Other changes in loans held-for-investment, net	(1,575,591)	(1,038,818)
Proceeds from sales of OREO	30,939	24,550
Proceeds from paydowns and maturities of resale agreements	0	360,000
Proceeds from repayments, maturities and redemptions of HTM debt securities	48,409	39,401
Redemption (purchases) of FHLB stock, net	13,888	(84,050)
Other investing activities, net	8,567	11,687
Net cash used in investing activities	(3,921,432)	(4,779,552)
CASH FLOWS FROM FINANCING ACTIVITIES
Net change in deposits	3,412,410	5,591,371
Net change in short-term borrowings	9,847	(4,500,000)
FHLB advances:
Proceeds	2,500,000	4,000,000
Repayments	(3,000,000)	(500,000)
Net change in repurchase agreements	53,489	0
Repayment of lease liabilities and junior subordinated debt	(627)	(117,226)
Common stock:
Proceeds from issuance pursuant to various stock compensation plans and agreements	1,721	1,580
Stock tendered for payment of withholding taxes	(18,974)	(14,011)
Repurchase of common stock pursuant to the stock repurchase program	(114,548)	(123,221)
Cash dividends paid	(251,439)	(232,132)
Net cash provided by financing activities	2,591,879	4,106,361
Effect of exchange rate changes on cash and cash equivalents	(15,287)	6,746
NET (DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS	(556,548)	245,089
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	5,250,742	4,614,984
CASH AND CASH EQUIVALENTS, END OF PERIOD	4,694,194	4,860,073
Cash paid during the period for:
Interest	1,330,970	1,584,127
Income taxes, net	263,995	241,491
Noncash investing and financing activities:
Loans transferred from held-for-investment to held-for-sale	270,451	646,797
Loans transferred to OREO	$ 25,506	$ 67,379