Consolidated Statements of Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Interest income
Interest and fees on loans	$ 2,353	$ 655	$ 3,370	$ 1,276
Interest on investment securities	120	89	227	172
Interest on deposits at banks	480	13	567	19
Total interest income	2,953	757	4,164	1,467
Interest expense
Deposits	575	42	863	81
Borrowings	417	15	490	37
Total interest expense	992	57	1,353	118
Net interest income	1,961	700	2,811	1,349
Provision for credit losses	151	42	934	506
Net interest income after provision for credit losses	1,810	658	1,877	843
Noninterest income
Rental income on operating lease equipment	238	213	471	421
Realized loss on sale of investment securities available for sale, net	0	0	(14)	0
Fair value adjustment on marketable equity securities, net	(10)	(6)	(19)	(3)
Bank-owned life insurance	2	9	7	17
Gain on sale of leasing equipment, net	4	5	8	11
Gain on acquisition	55	0	9,879	431
Gain on extinguishment of debt	0	0	0	6
Other noninterest income	32	26	68	42
Total noninterest income	658	424	10,917	1,274
Noninterest expense
Depreciation on operating lease equipment	91	89	180	170
Maintenance and other operating lease expenses	56	47	112	90
Salaries and benefits	775	345	1,195	701
Net occupancy expense	64	48	114	96
Equipment expense	133	54	191	106
Professional fees	21	11	32	23
Third-party processing fees	54	26	84	50
FDIC insurance expense	22	9	40	21
Marketing expense	41	9	56	17
Acquisition-related expenses	205	34	233	169
Intangible asset amortization	18	6	23	12
Other noninterest expense	92	67	167	100
Total noninterest expense	1,572	745	2,427	1,555
Income before income taxes	896	337	10,367	562
Income tax (benefit) expense	214	82	167	36
Net income	682	255	10,200	526
Preferred stock dividends	15	17	29	24
Net income available to common stockholders, basic	667	238	10,171	502
Net income available to common shareholders, diluted	$ 667	$ 238	$ 10,171	$ 502
Earnings per common share
Earnings per common share, basic (in dollars per share)	$ 45.90	$ 14.87	$ 700.10	$ 31.52
Earnings per common share, diluted (in dollars per share)	$ 45.87	$ 14.86	$ 699.53	$ 31.48
Weighted average common shares outstanding
Weighted average common shares outstanding, basic (in shares)	14,528,134	16,023,613	14,527,417	15,918,978
Weighted average common shares outstanding, diluted (in shares)	14,537,938	16,035,090	14,539,176	15,937,826
Fee income and other service charges
Noninterest income
Noninterest income	$ 69	$ 37	$ 116	$ 71
Client investment fees
Noninterest income
Noninterest income	52	0	54	0
Wealth management services
Noninterest income
Noninterest income	51	37	91	72
International fees
Noninterest income
Noninterest income	32	2	36	4
Service charges on deposit accounts
Noninterest income
Noninterest income	44	28	68	55
Factoring commissions
Noninterest income
Noninterest income	20	27	39	54
Cardholder services, net
Noninterest income
Noninterest income	41	26	62	51
Merchant services, net
Noninterest income
Noninterest income	14	9	24	19
Insurance commissions
Noninterest income
Noninterest income	$ 14	$ 11	$ 27	$ 23