Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
OPERATING ACTIVITIES
Net income	$ 1,098	$ 547	$ 492
Adjustments to reconcile net income to cash provided by (used in) operating activities:
Provision (benefit) for credit losses	645	(37)	58
Deferred tax expense	206	(8)	(26)
Depreciation, amortization, and accretion, net	533	143	133
Stock based compensation expense	19	0	0
Realized gain on sale of investment securities available for sale, net	0	(33)	(60)
Fair value adjustment on marketable equity securities, net	3	(34)	(29)
Gain on sale of loans, net	(22)	(33)	(38)
Gain on sale of operating lease equipment, net	(15)	0	0
Loss on sale of premises and equipment, net	5	0	0
(Gain) loss on other real estate owned, net	(14)	(1)	4
Gain on acquisition	(431)	0	0
Gain on extinguishment of debt	(7)	0	0
Origination of loans held for sale	(499)	(1,123)	(1,042)
Proceeds from sale of loans held for sale	562	1,036	1,046
Net change in other assets	484	(733)	(135)
Net change in other liabilities	260	5	(15)
Other operating activities	(36)	(13)	(12)
Net cash provided by (used in) operating activities	2,791	(284)	376
CASH FLOWS FROM INVESTING ACTIVITIES
Net decrease (increase) in interest-earning deposits at banks	6,965	(4,767)	(3,204)
Purchase of marketable equity securities	0	(2)	(333)
Proceeds from sales of investments in marketable equity securities	0	30	353
Purchase of investment securities available for sale	(1,985)	(6,375)	(8,667)
Proceeds from maturities of investment securities available for sale	1,237	2,455	2,791
Proceeds from sale of investment securities available for sale	2	1,367	4,585
Purchase of investment securities held to maturity	(755)	(1,401)	(1,633)
Proceeds from maturities of investment securities held to maturity	835	809	301
Net change in loans	(5,344)	423	(3,850)
Proceeds from sale of loans	245	0	13
Net decrease in credit balances of factoring clients	(538)	0	0
Purchase of operating lease equipment	(771)	0	0
Proceeds from sale of operating lease equipment	95	0	0
Purchase of premises and equipment	(155)	(107)	(133)
Proceeds from sales of premises and equipment	13	1	1
Proceeds from sales of other real estate owned	48	41	28
Acquisition, net of cash acquired	134	0	(60)
Other investing activities	49	(42)	(100)
Net cash provided by (used in) investing activities	75	(7,568)	(9,908)
CASH FLOWS FROM FINANCING ACTIVITIES
Net increase (decrease) in time deposits	568	(406)	(1,010)
Net (decrease) increase in demand and other interest-bearing deposits	(2,259)	8,382	9,989
Net decrease in securities sold under customer repurchase agreements	(153)	(52)	(97)
Repayment of short-term borrowings	(1,355)	0	0
Proceeds from issuance of short-term borrowings	3,105	0	0
Repayment of long-term borrowings	(5,099)	(54)	(87)
Proceeds from issuance of long-term borrowings	3,854	0	746
Net proceeds from issuance of preferred stock	0	0	340
Repurchase of Class A common stock	(1,240)	0	(334)
Cash dividends paid	(83)	(42)	(30)
Other financing activities	(24)	0	0
Net cash (used in) provided by financing activities	(2,686)	7,828	9,517
Change in cash and due from banks	180	(24)	(15)
Cash and due from banks at beginning of year	338	362	377
Cash and due from banks at end of year	518	338	362
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION
Interest	525	62	105
Income taxes	(551)	870	117
Significant non-cash investing and financing activities:
Transfers of loans to other real estate	14	14	12
Transfers of premises and equipment to other real estate	19	14	15
Transfer of investment securities available for sale to held to maturity	0	452	1,461
Dividends declared but not paid	1	0	5
Transfer of assets from held for investment to held for sale	188	88	49
Transfer of assets from held for sale to held for investment	21	4	6
Loans held for sale exchanged for investment securities	38	231	11
Commitments extended during the period on affordable housing investment credits	110	15	15
Common Stock | Issued for Acquisition
Issuance of stock	5,279	0	0
Common Stock | Issued for Stock Based Compensation
Issuance of stock	81	0	0
Preferred Stock | Issued for Acquisition
Issuance of stock	$ 541	$ 0	$ 0