Consolidated Statement of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Cash flows from operating activities
Net income	$ 1,186,000	$ 1,569,000
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for credit losses	350,000	270,000
Depreciation and amortization of premises and equipment	159,000	149,000
Amortization of capitalized servicing rights	70,000	57,000
Amortization of core deposit and other intangible assets	28,000	32,000
Provision for deferred income taxes	(14,000)	(7,000)
Asset write-downs	6,000	1,000
Net (gain) loss on sales of assets	3,000	(234,000)
Net change in accrued interest receivable, payable	0	259,000
Net change in other accrued income and expense	51,000	(72,000)
Net change in loans originated for sale	11,000	(340,000)
Net change in trading account and other non-hedging derivative assets and liabilities	112,000	1,000
Net cash provided by operating activities	1,962,000	1,685,000
Cash flows from investing activities
Available for sale	58,000	0
Equity and other securities	223,000	614,000
Available for sale	3,522,000	298,000
Held to maturity	547,000	571,000
Available for sale	(7,200,000)	(344,000)
Held to maturity	0	(2,948,000)
Equity and other securities	(294,000)	(873,000)
Net increase in loans and leases	(1,258,000)	(1,645,000)
Net (increase) decrease in interest-bearing deposits at banks	3,277,000	(2,148,000)
Capital expenditures, net	(101,000)	(101,000)
Net decrease in loan servicing advances	153,000	286,000
Other, net	(384,000)	(360,000)
Net cash used by investing activities	(1,457,000)	(6,650,000)
Cash flows from financing activities
Net decrease in deposits	(3,366,000)	(1,455,000)
Net increase (decrease) in short-term borrowings	(552,000)	4,353,000
Proceeds from long-term borrowings	3,357,000	3,486,000
Payments on long-term borrowings	(162,000)	0
Purchases of treasury stock	0	(594,000)
Dividends paid — common	(446,000)	(436,000)
Dividends paid — preferred	(58,000)	(50,000)
Proceeds from issuance of Series J preferred stock	733,000	0
Other, net	36,000	(11,000)
Net cash provided (used) by financing activities	(458,000)	5,293,000
Net increase in cash, cash equivalents and restricted cash	47,000	328,000
Cash, cash equivalents and restricted cash at beginning of period	1,731,000	1,520,000
Cash, cash equivalents and restricted cash at end of period	1,778,000	1,848,000
Supplemental disclosure of cash flow information
Interest received during the period	5,547,000	4,814,000
Interest paid during the period	2,115,000	923,000
Income taxes paid during the period	106,000	329,000
Supplemental schedule of noncash investing and financing activities
Real estate acquired in settlement of loans	23,000	12,000
Additions to right-of-use assets under operating leases	$ 43,000	$ 69,000