Consolidated Statements of Cash Flows - USD ($)		9 Months Ended
		Sep. 30, 2023	Sep. 30, 2022
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income		$ 2,626,000,000	$ 478,000,000
Adjustments to reconcile net income to net cash (used in) provided by operating activities:
Provision for (recovery of) credit losses		281,000,000	9,000,000
Amortization of intangibles		90,000,000	0
Depreciation		29,000,000	13,000,000
Amortization of discounts and premiums, net		(221,000,000)	(8,000,000)
Net (gain) loss on securities		1,000,000	2,000,000
Net (gain) loss on sales of loans		(73,000,000)	0
Net gain on sales of fixed assets		0	(2,000,000)
Gain on business acquisition		(2,142,000,000)	0
Stock-based compensation		33,000,000	22,000,000
Deferred tax expense		(32,000,000)	0
Changes in operating assets and liabilities:
Decrease (increase) in other assets		(135,000,000)	65,000,000
(Decrease) increase in other liabilities		(358,000,000)	51,000,000
Purchases of securities held for trading		(10,000,000)	(75,000,000)
Proceeds from sales of securities held for trading		10,000,000	75,000,000
Change in loans held for sale, net		(615,000,000)	0
Net cash (used in) provided by operating activities		(516,000,000)	631,000,000
CASH FLOWS FROM INVESTING ACTIVITIES:
Proceeds from repayment of securities available for sale		1,254,000,000	571,000,000
Proceeds from sales of securities available for sale		1,341,000,000	0
Purchase of securities available for sale		(2,346,000,000)	(2,190,000,000)
Redemption of Federal Home Loan Bank stock		1,069,000,000	311,000,000
Purchases of Federal Home Loan Bank and Federal Reserve Bank stock		(912,000,000)	(207,000,000)
Proceeds from bank-owned life insurance, net		27,000,000	5,000,000
Purchases of loans		0	(157,000,000)
Net Proceeds from sales of MSR's		50,000,000	0
Other changes in loans, net		(3,077,000,000)	(3,084,000,000)
(Purchases) dispositions of premises and equipment, net		(42,000,000)	9,000,000
Cash acquired in business acquisition		25,043,000,000	0
Net cash provided by (used in) investing activities		22,407,000,000	(4,742,000,000)
CASH FLOWS FROM FINANCING ACTIVITIES:
Net (decrease) increase in deposits		(9,641,000,000)	6,646,000,000
Net decrease in short-term borrowed funds		(705,000,000)	115,000,000
Proceeds from long-term borrowed funds		3,675,000,000	6,930,000,000
Repayments of long-term borrowed funds		(9,725,000,000)	(9,810,000,000)
Net receipt of payments of loans serviced for others		(48,000,000)	0
Cash dividends paid on common stock		(364,000,000)	(237,000,000)
Cash dividends paid on preferred stock		(25,000,000)	(25,000,000)
Treasury stock repurchased		0	(7,000,000)
Payments relating to treasury shares received for restricted stock award tax payments		(11,000,000)	(12,000,000)
Net cash (used in) provided by financing activities		(16,844,000,000)	3,600,000,000
Net increase in cash, cash equivalents and restricted cash	[1]	5,047,000,000	(511,000,000)
Beginning cash, cash equivalents and restricted cash		2,082,000,000	2,211,000,000	[1]
Ending cash, cash equivalents and restricted cash	[1]	7,129,000,000	1,700,000,000
Supplemental information:
Cash paid for interest		1,656,000,000	399,000,000
Cash paid for income taxes		32,000,000	13,000,000
Non-cash investing and financing activities:
Transfers to repossessed assets from loans		4,000,000	0
Securitization of loans to mortgage-backed securities available for sale		109,000,000	157,000,000
Shares issued for restricted stock awards		31,000,000	27,000,000
Business Combination:
Fair value of tangible assets acquired		37,526,000,000	0
Intangible assets		464,000,000	0
Liabilities assumed		35,763,000,000	0
Issuance of FDIC Equity appreciation instrument		$ 85,000,000	$ 0

[1] For further information on restricted cash, see Note 14 - Derivative and Hedging Activities