Consolidated Statement of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Cash flows from operating activities
Net income	$ 701,624	$ 362,174
Adjustments to reconcile net income to net cash provided by operating activities
Provision for credit losses	120,000	10,000
Depreciation and amortization of premises and equipment	75,501	56,739
Amortization of capitalized servicing rights	19,832	25,316
Amortization of core deposit and other intangible assets	17,208	1,256
Provision for deferred income taxes	11,380	4,151
Asset write-downs	780	252
Net gain on sales of assets	(11,515)	(4,768)
Net change in accrued interest receivable, payable	54,789	15,748
Net change in other accrued income and expense	(42,828)	(99,163)
Net change in loans originated for sale	(274,222)	434,520
Net change in trading account and other non-hedging derivative assets and liabilities	(244,736)	489,545
Net cash provided by operating activities	427,813	1,295,770
Cash flows from investing activities
Proceeds from sales of investment securities equity and other	521,275	4,593
Proceeds from maturities of investment securities Available for sale	141,173	220,320
Proceeds from maturities of investment securities Held to maturity	281,245	120,032
Purchases of investment securities Available for sale	(337,196)	(2,156,662)
Purchases of investment securities Held to maturity	(2,947,627)	(566,119)
Purchases of investment securities equity and other	(792,465)	(10,966)
Net (increase) decrease in loans and leases	(1,166,228)	637,624
Net decrease in interest-bearing deposits at banks	2,652,294	5,846,922
Capital expenditures, net	(55,411)	(27,910)
Net decrease in loan servicing advances	206,668	342,947
Other, net	(251,440)	(215,201)
Net cash provided (used) by investing activities	(1,747,712)	4,195,580
Cash flows from financing activities
Net decrease in deposits	(4,440,810)	(5,224,696)
Net increase in short-term borrowings	3,440,351	3,261
Proceeds from long-term borrowings	3,485,675
Payments on long-term borrowings	(96)	(49)
Purchases of treasury stock	(594,000)
Dividends paid — common	(220,517)	(156,657)
Dividends paid — preferred	(33,554)	(30,718)
Other, net	(19,654)	(8,608)
Net cash provided (used) by financing activities	1,617,395	(5,417,467)
Net increase in cash, cash equivalents and restricted cash	297,496	73,883
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	1,817,740	1,411,460
Supplemental disclosure of cash flow information
Interest received during the period	2,289,226	978,682
Interest paid during the period	410,419	40,683
Income taxes paid during the period	22,474	33,638
Supplemental schedule of noncash investing and financing activities
Real estate acquired in settlement of loans	7,088	4,598
Additions to right-of-use assets under operating leases	$ 30,536	$ 16,458