Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 2,077	$ 10,952
Adjustments to reconcile net income to cash provided by operating activities:
Provision for credit losses	276	1,126
Deferred tax (benefit) expense	(127)	110
Depreciation, amortization, and accretion, net	36	(12)
Stock based compensation expense	0	4
Realized (gain) loss on sale of investment securities, net	(4)	26
Fair value adjustment on marketable equity securities, net	(3)	20
(Gain) loss on sale of loans, net	(7)	3
Gain on sale of operating lease equipment, net	(19)	(18)
Loss on sale of premises and equipment, net	1	0
Gain on other real estate owned, net	(6)	(3)
Gain on acquisition	0	(9,891)
Loss on extinguishment of debt	2	0
Origination of loans held for sale	(799)	(503)
Proceeds from sale of loans held for sale	867	475
Impairment of premises and equipment and other assets	0	21
Net change in other assets	(169)	(410)
Net change in other liabilities	(245)	(130)
Other operating activities	(11)	(11)
Net cash provided by operating activities	1,869	1,759
CASH FLOWS FROM INVESTING ACTIVITIES
Net decrease in interest-earning deposits at banks	7,969	2,322
Purchase of marketable equity securities	(6)	0
Proceeds from sales of investments in marketable equity securities	15	0
Purchases of investment securities available for sale	(13,339)	(8,415)
Proceeds from maturities of investment securities available for sale	5,036	774
Proceeds from sales of investment securities available for sale	695	245
Purchases of investment securities held to maturity	(791)	(213)
Proceeds from maturities of investment securities held to maturity	401	434
Net decrease (increase) in securities purchased under agreements to resell	18	(549)
Net (increase) decrease in loans	(5,606)	6,215
Proceeds from sales of loans	244	290
Net increase in credit balances of factoring clients	161	287
Purchases of operating lease equipment	(793)	(815)
Proceeds from sales of operating lease equipment	149	178
Purchases of premises and equipment	(301)	(197)
Proceeds from sales of other real estate owned	16	15
Cash acquired, net of cash paid as consideration for acquisition	0	810
Proceeds from surrender of bank-owned life insurance policies	0	1,094
Other investing activities	(279)	312
Net cash (used in) provided by investing activities	(6,411)	2,787
CASH FLOWS FROM FINANCING ACTIVITIES
Net (decrease) increase in time deposits	(2,295)	6,238
Net increase (decrease) in demand and other interest-bearing deposits	8,063	(5,658)
Net (decrease) increase in securities sold under customer repurchase agreements	(94)	7
Repayment of short-term borrowings	0	(2,250)
Proceeds from issuance of short-term borrowings	0	500
Repayment of long-term borrowings	(348)	(13,016)
Proceeds from issuance of long-term borrowings	0	9,990
Repurchase of Class A common stock	(700)	0
Cash dividends paid	(116)	(78)
Other financing activities	(14)	(6)
Net cash provided by (used in) financing activities	4,496	(4,273)
Change in cash and due from banks	(46)	273
Cash and due from banks at beginning of period	908	518
Cash and due from banks at end of period	862	791
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION
Interest	4,005	2,443
Income taxes	754	429
Significant non-cash investing and financing activities:
Transfers of loans to other real estate	1	20
Transfers of premises and equipment to other real estate	5	5
Transfer of assets from held for investment to held for sale	329	309
Transfer of assets from held for sale to held for investment	25	14
Commitments extended during the period on affordable housing investment credits	360	81
Purchase Money Note as consideration for SVBB Acquisition	$ 0	$ 35,808