Consolidated Statement of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Cash flows from operating activities
Net Income (Loss)	$ 2,258,599	$ 1,226,292
Adjustments to reconcile net income to net cash provided by operating activities
Provision for credit losses	420,000	427,000
Depreciation and amortization of premises and equipment	226,786	219,737
Amortization of capitalized servicing rights	93,799	75,165
Amortization of core deposit and other intangible assets	47,099	38,024
Provision for deferred income taxes	(39,922)	(89,413)
Asset write-downs	3,318	7,358
Net gain on sales of assets	(244,413)	(14,583)
Net change in accrued interest receivable, payable	232,610	(58,629)
Net change in other accrued income and expense	207,845	(71,004)
Net change in loans originated for sale	(257,145)	560,861
Net change in trading account and other non-hedging derivative assets and liabilities	156,145	1,299,313
Net cash provided by operating activities	3,104,721	3,620,121
Cash flows from investing activities
Proceeds from sales of investment securities equity and other	809,058	42,999
Proceeds from maturities of investment securities Available for sale	512,669	641,573
Proceeds from maturities of investment securities Held to maturity	923,707	1,053,989
Purchases of investment securities Available for sale	(343,946)	(7,219,785)
Purchases of investment securities Held to maturity	(2,947,627)	(796,312)
Purchases of investment securities equity and other	(1,049,338)	(155,290)
Net increase in loans and leases	(850,349)	(58,942)
Net (increase) decrease in interest-bearing deposits at banks	(5,155,567)	25,674,122
Capital expenditures, net	(168,213)	(126,810)
Net decrease in loan servicing advances	305,622	1,324,912
Acquisition, net of cash consideration, Bank and bank holding company		393,923
Other, net	(592,921)	(516,504)
Net cash provided (used) by investing activities	(8,556,905)	20,257,875
Cash flows from financing activities
Net increase (decrease) in deposits	607,737	(20,663,949)
Net increase (decrease) in short-term borrowings	3,175,712	(24,111)
Proceeds from long-term borrowings	4,032,374	499,250
Payments on long-term borrowings	(780,715)	(907,191)
Purchases of treasury stock	(594,000)	(1,200,000)
Dividends paid — common	(652,338)	(578,968)
Dividends paid — preferred	(83,435)	(80,600)
Other, net	(4,531)	(4,194)
Net cash provided (used) by financing activities	5,700,804	(22,959,763)
Net increase in cash, cash equivalents and restricted cash	248,620	918,233
Cash, cash equivalents and restricted cash at beginning of period	1,520,244	1,337,577
Cash, cash equivalents and restricted cash at end of period	1,768,864	2,255,810
Supplemental disclosure of cash flow information
Interest received during the period	7,428,629	4,145,231
Interest paid during the period	1,779,089	214,552
Income taxes paid during the period	430,802	362,866
Supplemental schedule of noncash investing and financing activities
Real estate acquired in settlement of loans	16,818	21,017
Additions to right-of-use assets under operating leases	$ 88,263	99,705
Acquisition of bank and bank holding company, Common stock issued		8,286,515
Acquisition of bank and bank holding company, Common stock awards converted		104,810
Fair value of Assets acquired (noncash)		63,757,316
Fair value of Liabilities assumed		55,499,314
Fair value of Preferred stock converted		$ 260,600