Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 731	$ 9,518
Adjustments to reconcile net income to cash provided by (used in) operating activities:
Provision for credit losses	64	783
Deferred tax expense (benefit)	1	(69)
Depreciation, amortization, and accretion, net	(12)	124
Stock based compensation expense	0	1
Realized loss on sale of investment securities available for sale, net	0	14
Fair value adjustment on marketable equity securities, net	4	9
Gain on sale of loans, net	(3)	(1)
Gain on sale of operating lease equipment, net	(10)	(4)
Gain on other real estate owned, net	(3)	0
Gain on acquisition	0	(9,824)
Loss on extinguishment of debt	2	0
Origination of loans held for sale	(209)	(82)
Proceeds from sale of loans held for sale	244	67
Net change in other assets	57	(486)
Net change in other liabilities	(409)	(347)
Other operating activities	4	(65)
Net cash provided by (used in) operating activities	461	(362)
CASH FLOWS FROM INVESTING ACTIVITIES
Net decrease (increase) in interest-earning deposits at banks	2,817	(88)
Purchases of investment securities available for sale	(6,296)	(125)
Proceeds from maturities of investment securities available for sale	1,221	227
Proceeds from sales of investment securities available for sale	250	1
Purchases of investment securities held to maturity	(174)	(212)
Proceeds from maturities of investment securities held to maturity	109	117
Net decrease in securities purchased under agreements to resell	79	0
Net (increase) decrease in loans	(2,146)	1,060
Proceeds from sales of loans	74	113
Net increase in credit balances of factoring clients	63	131
Purchases of operating lease equipment	(191)	(288)
Proceeds from sales of operating lease equipment	66	33
Purchases of premises and equipment	(94)	(44)
Proceeds from sales of other real estate owned	7	3
Cash acquired, net of cash paid as consideration for acquisition	0	1,347
Proceeds from surrender of bank-owned life insurance policies	0	238
Other investing activities	(76)	115
Net cash (used in) provided by investing activities	(4,291)	2,628
CASH FLOWS FROM FINANCING ACTIVITIES
Net increase in time deposits	585	2,124
Net increase (decrease) in demand and other interest-bearing deposits	3,204	(7,570)
Net (decrease) increase in securities sold under customer repurchase agreements	(90)	63
Repayment of short-term borrowings	0	(1,750)
Proceeds from issuance of short-term borrowings	0	500
Repayment of long-term borrowings	(31)	(1,021)
Proceeds from issuance of long-term borrowings	0	6,500
Cash dividends paid	(39)	(26)
Other financing activities	(9)	(6)
Net cash provided by (used in) financing activities	3,620	(1,186)
Change in cash and due from banks	(210)	1,080
Cash and due from banks at beginning of period	908	518
Cash and due from banks at end of period	698	1,598
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION
Interest	1,294	366
Income taxes	53	0
Significant non-cash investing and financing activities:
Transfers of premises and equipment to other real estate	2	1
Transfer of assets from held for investment to held for sale	131	115
Transfer of assets from held for sale to held for investment	12	1
Commitments extended during the period on affordable housing investment credits	120	3
Purchase Money Note as consideration for SVBB Acquisition	0	35,150
Value Appreciation Instrument as consideration for SVBB Acquisition	$ 0	$ 500