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Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Bargain Purchase, Gain

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Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Cash And Cash Equivalents

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Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Liabilities

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Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Other Assets

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Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Other Liabilities

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Business Combination, Recognized Identifiable Assets Acquired And Liabilities Assumed, Core Deposit And Other Intangible Assets

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Business Combination, Recognized Identifiable Assets Acquired And Liabilities Assumed, Deposits

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Business Combination, Recognized Identifiable Assets Acquired And Liabilities Assumed, Loans Held For Investment

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Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Loans Held For Sale

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Business Combination, Recognized Identifiable Assets Acquired And Liabilities Assumed, Mortgage Servicing Rights

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Business Combination, Recognized Identifiable Assets Acquired And Liabilities Assumed, Securities

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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In a business combination in which the amount of net identifiable assets acquired and liabilities assumed exceeds the aggregate consideration transferred or to be transferred (as defined), this element represents the amount of gain recognized by the entity.

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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This element represents the amount of any measurement period adjustment (as defined) realized during the reporting period to items of consideration transferred in connection with a business combination for which the initial accounting was incomplete.

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This element represents the amount of any measurement period adjustment (as defined) realized during the reporting period to financial assets acquired in connection with a business combination for which the initial accounting was incomplete.

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This element represents the amount of any measurement period adjustment (as defined) realized during the reporting period to financial liabilities assumed in connection with a business combination for which the initial accounting was incomplete.

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Amount of assets acquired at the acquisition date.

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Amount of currency on hand as well as demand deposits with banks or financial institutions, acquired at the acquisition date. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Amount of other assets expected to be realized or consumed before one year or the normal operating cycle, if longer, acquired at the acquisition date.

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Amount of long-term debt due within one year or within the normal operating cycle, if longer, assumed at the acquisition date.

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Amount of other liabilities due within one year or within the normal operating cycle, if longer, assumed at the acquisition date.

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Amount of liabilities assumed at the acquisition date.

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Amount recognized as of the acquisition date for the identifiable assets acquired in excess of (less than) the aggregate liabilities assumed.

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Business Combinations - Preliminary Allocation (Details) - USD ($) $ in Millions			12 Months Ended
	Mar. 20, 2023	Dec. 01, 2022	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Fair value of liabilities assumed:
Bargain purchase gain		$ 159	$ 2,131	$ 159	$ 0
Measurement Period Adjustments
Cash & cash equivalents			(142)
Signature Bridge Bank
Business Acquisition [Line Items]
Purchase Price consideration	$ 85
Fair value of assets acquired:
Cash & cash equivalents	24,901
Loans held for sale	232
Loans held for investment:	11,741
CDI and other intangible assets	464
Other assets	510
Total assets acquired	37,848
Fair value of liabilities assumed:
Deposits	33,507
Other liabilities	2,125
Fair value of net identifiable assets	2,973
Measurement Period Adjustments
Loans held for investment:	(477)
Other assets	(169)
Total assets acquired	(788)
Deposits	(61)
Other liabilities	(857)
Total liabilities assumed	(918)
Fair value of net identifiable assets	130
Bargain purchase gain	130
Signature Bridge Bank \| Previously Reported
Business Acquisition [Line Items]
Purchase Price consideration	85
Fair value of assets acquired:
Cash & cash equivalents	25,043
Loans held for sale	232
Loans held for investment:	12,218
CDI and other intangible assets	464
Other assets	679
Total assets acquired	38,636
Fair value of liabilities assumed:
Deposits	33,568
Other liabilities	2,982
Total liabilities assumed	36,550
Fair value of net identifiable assets	2,086
Bargain purchase gain	2,001
Signature Bridge Bank \| Restatement Adjustment
Fair value of liabilities assumed:
Total liabilities assumed	35,632
Fair value of net identifiable assets	2,216
Bargain purchase gain	2,131
Signature Bridge Bank \| Commercial and industrial
Fair value of assets acquired:
Loans held for investment:	9,888
Measurement Period Adjustments
Loans held for investment:	(214)
Signature Bridge Bank \| Commercial and industrial \| Previously Reported
Fair value of assets acquired:
Loans held for investment:	10,102
Signature Bridge Bank \| Commercial real estate
Fair value of assets acquired:
Loans held for investment:	1,680
Measurement Period Adjustments
Loans held for investment:	(262)
Signature Bridge Bank \| Commercial real estate \| Previously Reported
Fair value of assets acquired:
Loans held for investment:	1,942
Signature Bridge Bank \| Consumer and other
Fair value of assets acquired:
Loans held for investment:	173
Measurement Period Adjustments
Loans held for investment:	(1)
Signature Bridge Bank \| Consumer and other \| Previously Reported
Fair value of assets acquired:
Loans held for investment:	$ 174
Flagstar Bancorp
Business Acquisition [Line Items]
Purchase Price consideration		2,010
Fair value of assets acquired:
Cash & cash equivalents		331
Securities		2,695
Loans held for sale		1,257
Loans held for investment:		18,008
CDI and other intangible assets		292
Mortgage servicing rights		1,012
Other assets		2,158
Total assets acquired		25,753
Fair value of liabilities assumed:
Deposits		15,995
Borrowings				6,700
Other liabilities				889
Total liabilities assumed				23,584
Fair value of net identifiable assets				$ 2,169
Bargain purchase gain		159
Measurement Period Adjustments
Fair value of net identifiable assets			$ 30
Flagstar Bancorp \| Commercial and industrial
Fair value of assets acquired:
Loans held for investment:		3,891
Flagstar Bancorp \| Commercial real estate
Fair value of assets acquired:
Loans held for investment:		6,523
Flagstar Bancorp \| Consumer and other
Fair value of assets acquired:
Loans held for investment:		2,156
Flagstar Bancorp \| One-to-four family first mortgage
Fair value of assets acquired:
Loans held for investment:		$ 5,438