Flagstar Financial (FLG) 10-Q 10 May 24 2024 Q1 Quarterly report Financial data

Cover

Cover - shares	3 Months Ended
	Mar. 31, 2024	May 06, 2024
Document Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2024
Document Transition Report	false
Entity File Number	001-16577
Entity Registrant Name	NEW YORK COMMUNITY BANCORP, INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	06-1377322
Entity Address, Address Line One	102 Duffy Avenue,
Entity Address, City or Town	Hicksville,
Entity Address, State or Province	NY
Entity Address, Postal Zip Code	11801
City Area Code	516
Local Phone Number	683-4100
Entity Current Reporting Status	No
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		820,716,107
Entity Central Index Key	0000910073
Amendment Flag	false
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q1
Current Fiscal Year End Date	--12-31
Common Stock (Par Value: $0.01)
Document Information [Line Items]
Title of 12(b) Security	Common Stock, $0.01 par value per share
Trading Symbol	NYCB
Security Exchange Name	NYSE
Bifurcated Option Notes Unit Securities
Document Information [Line Items]
Title of 12(b) Security	Bifurcated Option Note Unit SecuritiESSM
Trading Symbol	NYCB PU
Security Exchange Name	NYSE
Fixed To Floating Rate Series A Noncumulative Perpetual Preferred Stock
Document Information [Line Items]
Title of 12(b) Security	Depositary Shares each representing a 1/40th interest in a share of Fixed-to-Floating Rate Series A Noncumulative Perpetual Preferred Stock
Trading Symbol	NYCB PA
Security Exchange Name	NYSE

Consolidated Statements of Cond

Consolidated Statements of Condition - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
ASSETS:
Cash and cash equivalents	$ 12,890	$ 11,475
Debt Securities available-for-sale ($8,683 and $2,822 pledged at March 31, 2024 and December 31, 2023, respectively)	9,336	9,145
Equity investments with readily determinable fair values, at fair value	14	14
Total securities net of allowance for credit losses	9,350	9,159
Loans held for sale, at fair value	981	1,182
Loans and leases held for investment, net of deferred loan fees and costs ($66 and zero measured at fair value at March 31, 2024 and December 31, 2023, respectively)	82,327	84,619
Less: Allowance for credit losses on loans and leases	(1,215)	(992)
Total loans and leases held for investment, net	81,112	83,627
Federal Home Loan Bank stock and Federal Reserve Bank stock, at cost	1,550	1,392
Premises and equipment, net	679	652
Core deposit and other intangibles	590	625
Mortgage servicing rights	1,092	1,111
Bank-owned life insurance	1,586	1,580
Other assets	3,070	3,254
Total assets	112,900	114,057
Deposits:
Interest-bearing checking and money market accounts	22,172	30,700
Savings accounts	8,171	8,773
Certificates of deposit	26,763	21,554
Non-interest-bearing accounts	17,752	20,499
Total deposits	74,858	81,526
Borrowed funds:
Federal Home Loan Bank advances	23,750	20,250
Repurchase agreements	1,958	0
Total wholesale borrowings	25,708	20,250
Junior subordinated debentures	580	579
Subordinated notes	439	438
Total borrowed funds	26,727	21,267
Other liabilities	2,330	2,897
Total liabilities	103,915	105,690
Mezzanine equity:
Preferred stock - Series B and Series C (See Note 17 - Mezzanine and Stockholders Equity )	595	0
Stockholders' equity:
Preferred stock - Series A (See Note 17 - Mezzanine and Stockholders Equity)	503	503
Common Stock, Value, Issued	8	7
Paid-in capital in excess of par	8,648	8,231
Retained earnings	73	443
Treasury stock, at cost (22,837,480 and 22,089,421 shares, respectively)	(225)	(218)
Accumulated other comprehensive loss, net of tax:
Net unrealized loss on securities available for sale, net of tax of $248 and $225, respectively	(651)	(581)
Net unrealized loss on pension and post-retirement obligations, net of tax of $11 and $12, respectively	(27)	(28)
Net unrealized gain on cash flow hedges, net of tax of $(23) and $(6), respectively	61	10
Total accumulated other comprehensive loss, net of tax	(617)	(599)
Total stockholders’ equity	8,390	8,367
Total liabilities, Mezzanine and Stockholders’ Equity	$ 112,900	$ 114,057

Consolidated Statements of Co_2

Consolidated Statements of Condition (Parenthetical) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Statement of Financial Position [Abstract]
Pledged investment securities	$ 8,683	$ 2,822
Loans held-for-sale, fair value	981	902
Deferred loan fees and costs	$ 66	$ 0
Common stock, par value (in usd per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	900,000,000	900,000,000
Common stock, shares issued (in shares)	827,123,078	744,155,791
Common stock (in shares)	804,285,598	722,066,370
Treasury stock (in shares)	22,837,480	22,089,421
Net unrealized loss on securities available for sale, tax	$ 248	$ 225
Net unrealized loss on pension and post-retirement obligations, tax	11	12
Net unrealized (loss) gain on cash flow hedges, tax	$ (23)	$ (6)

Consolidated Statements of Inco

Consolidated Statements of Income and Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Dec. 31, 2023	Mar. 31, 2023
INTEREST INCOME:
Loans and leases	$ 1,193		$ 867
Securities and money market investments	320		167
Total interest income	1,513		1,034
INTEREST EXPENSE:
Interest-bearing checking and money market accounts	232		157
Savings accounts	47		39
Certificates of deposit	291		87
Borrowed funds	319		196
Total interest expense	889		479
Net interest income	624		555
Provision for credit losses	315		170
Net interest income after provision for credit loan losses	309		385
NON-INTEREST INCOME:
Fee income	34		27
Bank-owned life insurance	10		10
Net return on mortgage servicing rights	21		22
Net gain on loan sales and securitizations	20		20
Net Loan administration income	16		7
Bargain purchase gain	(121)		2,001
Other	29		11
Total non-interest income	9		2,098
NON-INTEREST EXPENSE:
Compensation and benefits	333		219
Occupancy and equipment	52		37
General and administrative	236		136
Total operating expense	621		392
Amortization of intangibles	35		17
Merger-related and restructuring expenses	43		67
Goodwill Impairment	0		0
Total non-interest expense	699		476
Income before income taxes	(381)		2,007
Income tax expense	(54)		1
Net (loss) income	(327)		2,006
Preferred stock dividends	8	$ 8
Net (loss) income available to common stockholders	$ (335)		$ 1,998
Basic (in usd per share)	$ (0.45)		$ 2.88
Diluted (in usd per share)	$ (0.45)		$ 2.87
Net (loss) income	$ (327)		$ 2,006
Other comprehensive (loss) income, net of tax:
Change in net unrealized loss on securities available for sale, net of tax of $23 and $(21), respectively	(70)		60
Change in pension and post-retirement obligations, net of tax of $(1) and $—, respectively	0		1
Change in net unrealized gain on cash flow hedges, net of tax of $(23) and $23, respectively	68		(67)
Reclassification adjustment for defined benefit pension plan, net of tax of $— and $(1), respectively	1		1
Reclassification adjustment for net gain on cash flow hedges included in net income, net of tax $6 and $2, respectively	(17)		(4)
Total other comprehensive loss, net of tax	(18)		(9)
Total comprehensive (loss) income, net of tax	$ (345)		$ 1,997

Consolidated Statements of In_2

Consolidated Statements of Income and Comprehensive Income (Parenthetical) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Income Statement [Abstract]
Change in net unrealized (loss) gain on securities available for sale, tax	$ 23	$ (21)
Change in pension and post-retirement obligations, tax	(1)	0
Change in net unrealized gain (loss) on cash flow hedges, tax	(23)	23
Reclassification adjustment for defined benefit plans, tax	0	(1)
Reclassification adjustment for net gain on cash flow hedges included in net income, tax	$ 6	$ 2

Consolidated Statements of Chan

Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Millions	Total	Noncumulative Series B Preferred Stock	Noncumulative Convertible Preferred Stock Series C	Preferred Stock (Par Value: $0.01)	Common Stock (Par Value: $0.01)	Paid-in Capital in excess of Par	Retained Earnings	Treasury Stock, at Cost	Accumulated Other Comprehensive Loss, Net of Tax
Beginning balance (in shares) at Dec. 31, 2022	681,217,334
Beginning balance at Dec. 31, 2022	$ 8,824			$ 503	$ 7	$ 8,130	$ 1,041	$ (237)	$ (620)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance and exercise of stock (in shares)	39,032,006
Issuance and exercise of stock	$ 85					85
Shares issued for restricted stock, net of forfeitures (in shares)	2,877,411
Shares issued for restricted stock, net of forfeitures	$ 0					(27)		27
Compensation expense related to restricted stock awards	9					9
Net (loss) income	2,006						2,006
Dividends paid on common stock	(116)						(116)
Dividends paid on preferred stock	$ (8)						(8)
Purchase of common stock (in shares)	(976,454)
Purchase of common stock	$ (9)							(9)
Other comprehensive loss, net of tax	$ (9)
Ending balance (in shares) at Mar. 31, 2023	722,150,297
Ending balance at Mar. 31, 2023	$ 10,782			503	7	8,197	2,923	(219)	(629)
Beginning balance at Dec. 31, 2022	0
Ending balance at Mar. 31, 2023	$ 0
Beginning balance (in shares) at Dec. 31, 2023	722,066,370
Beginning balance at Dec. 31, 2023	$ 8,367			503	7	8,231	443	(218)	(599)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance and exercise of stock (in shares)	83,381,965
Issuance and exercise of stock	$ 111				1	110
Issuance of warrants to purchase common shares	$ 302					302
Shares issued for restricted stock, net of forfeitures (in shares)	(260,595)
Shares issued for restricted stock, net of forfeitures	$ 0					(1)		1
Compensation expense related to restricted stock awards	6					6
Net (loss) income	(327)						(327)
Dividends paid on common stock	(35)						(35)
Dividends paid on preferred stock	$ (8)						(8)
Purchase of common stock (in shares)	(902,142)
Purchase of common stock	$ (8)							(8)
Other comprehensive loss, net of tax	$ (18)
Ending balance (in shares) at Mar. 31, 2024	804,285,598
Ending balance at Mar. 31, 2024	$ 8,390			$ 503	$ 8	$ 8,648	$ 73	$ (225)	$ (617)
Beginning balance at Dec. 31, 2023	0
Preferred Stock Mezzanine (Par Value: $0.01)
Issuance of mezzanine preferred stock		$ 258	$ 337
Ending balance at Mar. 31, 2024	$ 595	$ 258	$ 337

Consolidated Statements of Ch_2

Consolidated Statements of Changes in Stockholders' Equity (Parenthetical) - $ / shares	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Dividends paid on common stock (in dollars per share)	$ 0.05	$ 0.17
Dividends paid on preferred stock (in dollars per share)	15.94	15.94
Preferred stock, par value (in usd per share)	0.01
Common stock, par value (in usd per share)	0.01
Noncumulative convertible preferred stock (in usd per share)	$ 0.01	$ 0.01
Noncumulative Series B Preferred Stock
Mezzanine preferred stock (in shares)	192,062
Noncumulative convertible preferred stock (in usd per share)	$ 0.01
Noncumulative Convertible Preferred Stock Series C
Mezzanine preferred stock (in shares)	256,307
Noncumulative convertible preferred stock (in usd per share)	$ 0.01

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2024	Mar. 31, 2023
CASH FLOWS FROM OPERATING ACTIVITIES:
Net (loss) income		$ (327)	$ 2,006
Adjustments to reconcile net income to net cash (used in) provided by operating activities:
Provision for credit losses		315	170
Amortization of intangibles		35	17
Depreciation		11	8
Amortization of discounts and premiums, net		49	(36)
Net gain on sales of loans		(20)	(20)
Gain on business acquisition		121	(2,001)
Goodwill Impairment		0	0
Stock-based compensation		6	9
Deferred tax expense		(75)	11
Changes in operating assets and liabilities:
(Increase) decrease in other assets		(31)	112
(Decrease) increase in other liabilities		(476)	2,697
Purchases of securities held for trading		0	(10)
Proceeds from sales of securities held for trading		0	10
Change in loans held for sale, net		98	62
Net cash (used in) provided by operating activities		(294)	3,035
CASH FLOWS FROM INVESTING ACTIVITIES:
Proceeds from repayment of securities available for sale		627	664
Proceeds from sales of securities available for sale		123	1,233
Purchase of securities available for sale		(812)	(443)
Redemption of Federal Home Loan Bank stock		5	744
Purchases of Federal Home Loan Bank and Federal Reserve Bank stock		(163)	(833)
Proceeds from bank-owned life insurance, net		6	9
Net proceeds from sales of MSR's		61	0
Other changes in loans, net		2,151	(1,301)
Purchases of premises and equipment, net		(38)	(11)
Cash acquired in business acquisition		0	25,043
Net cash provided by investing activities		1,960	25,105
CASH FLOWS FROM FINANCING ACTIVITIES:
Net decrease in deposits		(6,672)	(7,496)
Net increase in short-term borrowed funds		2,959	2,400
Proceeds from long-term borrowed funds		10,800	0
Repayments of long-term borrowed funds		(8,301)	(2,375)
Net receipt (disbursement) of payments of loans serviced for others		10	(189)
Cash dividends paid on common stock		(8)	(8)
Cash dividends paid on preferred stock		(35)	(116)
Treasury stock repurchased		0	(9)
Proceeds from common stock and warrants issued		413	0
Proceeds from preferred stock issued		595	0
Payments relating to treasury shares received for restricted stock award tax payments		(8)	0
Net cash used in financing activities		(247)	(7,793)
Net increase in cash, cash equivalents and restricted cash	[1]	1,419	20,347
Beginning cash, cash equivalents and restricted cash	[1]	11,609	2,082
Ending cash, cash equivalents and restricted cash	[1]	13,028	22,429
Supplemental information:
Cash paid for interest		777	489
Cash paid for income taxes		9	13
Non-cash investing and financing activities:
Transfers to repossessed assets from loans		4	1
Securitization of loans to mortgage-backed securities available for sale		123	0
Transfer of loans from held for investment to held for sale		1,072	0
Business Combination:
Fair value of tangible assets acquired		0	38,172
Intangible assets		0	464
Liabilities assumed		0	36,550
Issuance of FDIC Equity appreciation instrument		0	85
Restricted stock units
Non-cash investing and financing activities:
Shares issued for restricted stock awards		$ 1	$ 27
[1]For further information on restricted cash, see Note 14 - Derivative and Hedging Activities

Organization and Basis of Prese

Organization and Basis of Presentation	3 Months Ended
	Mar. 31, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization and Basis of Presentation	Organization and Basis of Presentation Organization New York Community Bancorp, Inc. (on a stand-alone basis, the “Parent Company” or, collectively with its subsidiaries, the “Company” or "we") was organized under Delaware law on July 20, 1993 and is the holding company for Flagstar Bank N.A. (hereinafter referred to as the “Bank”). The Company is headquartered in Hicksville, New York with regional headquarters in Troy, Michigan. The Company is subject to regulation, examination and supervision by the Federal Reserve. The Bank is a National Association, subject to federal regulation and oversight by the OCC. On November 23, 1993, the Company issued its initial offering of common stock (par value: $0.01 per share) at a price of $25.00 per share ($0.93 per share on a split-adjusted basis, reflecting the impact of nine stock splits between 1994 and 2004). The Company has grown organically and through a series of accretive mergers and acquisitions, culminating in its acquisition of Flagstar Bancorp, Inc., which closed on December 1, 2022 and the Signature Transaction which closed on March 20, 2023. Flagstar Bank, N.A. currently operates 419 branches across twelve states, including strong footholds in the Northeast and Midwest and exposure to markets in the Southeast and West Coast. Flagstar Mortgage operates nationally through a wholesale network of approximately 3,600 third-party mortgage originators. Liquidity On a consolidated basis, our funding primarily stems from a combination of the following sources: retail, institutional, and brokered deposits; borrowed funds, primarily in the form of wholesale borrowings; cash flows generated through the repayment and sale of loans; and cash flows generated through the repayment and sale of securities. We manage our liquidity to ensure that our cash flows are sufficient to support our operations, to protect against temporary mismatches between sources and uses of funds caused by variable loan and deposit demand, and to meet our financial obligations. Basis of Presentation See Note 1 to the Consolidated Financial Statements in the Company's annual report on Form 10-K for the year ended December 31, 2023 for information on the Company's accounting policies. The accompanying financial statements of the Company and other entities in which the Company has a controlling financial interest, have been prepared using GAAP for interim financial statements. The accompanying financial statements of the Company conform to U.S. generally accepted accounting principles and to general practices within the banking industry. The preparation of financial statements in conformity with GAAP requires the Company to make estimates and judgments that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the consolidated financial statements, and the reported amounts of revenues and expenses during the reporting period. Estimates are used in connection with the determination of the allowance for credit losses, mortgage servicing rights and the acquisition method of accounting. All inter-company accounts and transactions are eliminated in consolidation. The Company currently has certain unconsolidated subsidiaries in the form of wholly-owned statutory business trusts, which were formed to issue guaranteed capital securities. See Note 11 “Borrowed Funds,” for additional information regarding these trusts. When necessary, certain reclassifications have been made to prior-year amounts to conform to the current-year presentation. Adoption of New Accounting Standards Standard Description Effective Date ASU 2022-03, Fair Value Measurements (Topic 820): Fair Value Measurement of Equity Securities Subject to Contractual Sale Restrictions This ASU clarifies that a contractual restriction on the sale of an equity security should not be considered in measuring its fair value. In addition, the ASU requires specific disclosures related to equity securities that are subject to contractual sale restrictions. Adoption of this ASU did not have a material impact on the consolidated financial statements. ASU 2023-08, Intangibles—Goodwill and Other—Crypto Assets (Subtopic 350-60): Accounting for and Disclosure of Crypto Assets The amendments in this update require entities that hold certain crypto assets to measure such assets at fair value and recognize any changes in fair value in net income in each reporting period. Entities will also be required to present crypto assets measured at fair value separately from other intangible assets on the balance sheet and changes from the remeasurement of crypto assets separately from changes in the carrying amounts of other intangible assets in the income statement. Other disclosure items include the name, cost basis, fair value, and number of units for each significant crypto asset holding and the aggregate fair values and cost bases of crypto asset holdings that are not individually significant along with a rollforward of activity in the reporting period and disclosure of the method for determining the cost basis of the crypto assets. Adoption of this ASU did not have a material impact on the consolidated financial statements. ASU 2024-02, Codification Improvements—Amendments to Remove References to the Concepts Statements This Update contains amendments to the Codification that remove references to various Concepts Statements. In most instances, the references are extraneous and not required to understand or apply the guidance. In other instances, the references were used in prior Statements to provide guidance in certain topical areas. We early adopted this ASU which did not have a material impact to the Financial Statements.

Computation of Earnings per Com

Computation of Earnings per Common Share	3 Months Ended
	Mar. 31, 2024
Earnings Per Share [Abstract]
Computation of Earnings per Common Share	Computation of Earnings per Common Share Earnings per Common Share (Basic and Diluted) Basic EPS is computed by dividing the net income available to common shareholders by the weighted average number of common shares outstanding during the period. Diluted EPS is computed using the same method as basic EPS, however, the computation reflects the potential dilution that would occur if outstanding in-the-money stock options were exercised and converted into common stock. Diluted earnings per share is the amount of earnings available to each common share outstanding during the reporting periods adjusted to include the effects of potentially dilutive common shares. Potentially dilutive common shares include warrants, convertible preferred stock, stock options and other stock-based awards. Potentially dilutive common shares are excluded from the computation of diluted earnings per share in the periods where the effect would be antidilutive. Unvested stock-based compensation awards containing non-forfeitable rights to dividends paid on the Company’s common stock are considered participating securities, and therefore are included in the two-class method for calculating EPS. Under the two-class method, all earnings (distributed and undistributed) are allocated to common shares and participating securities based on their respective rights to receive dividends on the common stock. The Company grants restricted stock to certain employees under its stock-based compensation plan. Recipients receive cash dividends during the vesting periods of these awards, including on the unvested portion of such awards. Since these dividends are non-forfeitable, the unvested awards are considered participating securities and therefore have earnings allocated to them. The following table presents the Company’s computation of basic and diluted earnings per common share: Three Months Ended March 31, (in millions, except share and per share amounts) 2024 2023 Net income available to common stockholders $ (335) $ 1,998 Less: Dividends paid on and earnings allocated to participating securities — (21) Earnings applicable to common stock $ (335) $ 1,977 Weighted average common shares outstanding 740,047,777 686,911,555 Basic earnings per common share $ (0.45) $ 2.88 Earnings applicable to common stock $ (335) $ 1,977 Weighted average common shares outstanding 740,047,777 686,911,555 Potential dilutive common shares — 1,360,056 Total shares for diluted earnings per common share computation 740,047,777 688,271,611 Diluted earnings per common share and common share equivalents $ (0.45) $ 2.87

Business Combinations

Business Combinations	3 Months Ended
	Mar. 31, 2024
Business Combination and Asset Acquisition [Abstract]
Business Combinations	Business Combinations Signature Bridge Bank On March 20, 2023, the Company’s wholly owned bank subsidiary, Flagstar Bank N.A. (the “Bank”), entered into a Purchase and Assumption Agreement (the “Agreement”) with the Federal Deposit Insurance Corporation (“FDIC”), as receiver (the "FDIC Receiver") of Signature Bridge Bank, N.A. (“Signature”) to acquire certain assets and assume certain liabilities of Signature (the “Signature Transaction”). Headquartered in New York, New York, Signature Bank was a full-service commercial bank that operated 29 branches in New York, seven branches in California, two branches in North Carolina, one branch in Connecticut, and one branch in Nevada. In connection with the Signature Transaction the Bank assumed all of Signature’s branches. The Bank acquired only certain parts of Signature it believes to be financially and strategically complementary that are intended to enhance the Company’s future growth. Pursuant to the terms of the Agreement, the Company was not required to make a cash payment to the FDIC on March 20, 2023 as consideration for the acquired assets and assumed liabilities. The final settlement process between the Company and the FDIC concluded upon the one-year anniversary of the Signature Transaction. In addition, as part of the consideration for the Signature Transaction, the Company granted the FDIC equity appreciation rights in the common stock of the Company under an equity appreciation instrument (the "Equity Appreciation Instrument"). On March 31, 2023, the Company issued 39,032,006 shares of Company common stock to the FDIC pursuant to the Equity Appreciation Instrument. On May 19, 2023, the FDIC completed the secondary offering of those shares. The Company has determined that the Signature Transaction constitutes a business combination as defined by ASC 805, Business Combinations ("ASC 805"). ASC 805 establishes principles and requirements as to how the acquirer of a business recognizes and measures in its financial statements the identifiable assets acquired, the liabilities assumed and any non-controlling interest in the acquiree. Accordingly, the Company recorded the estimated fair value of the assets acquired and liabilities assumed as of March 20, 2023, which was subject to adjustment for up to one year after March 20, 2023 (the “Measurement Period”). As of March 31, 2024 the Measurement period has concluded and the Company has finalized its review of the assets acquired and liabilities assumed. Under the Agreement, the Company provided certain services to the FDIC to assist the FDIC in its administration of certain assets and liabilities which were not assumed by the Company and which remain under the control of the FDIC (the “Interim Servicing”). The Interim Servicing includes activities related to the servicing of loan portfolios not acquired on behalf of the FDIC for a period of up to one year from the date of the Signature Transaction unless such loans are sold or transferred at an earlier time by the FDIC or until cancelled by the FDIC upon 60-days’ notice. The FDIC reimbursed the Company for costs associated with the Interim Servicing based upon an agreed upon fee which approximates the cost to provide such services. As the FDIC reimbursed the Company for the costs to service the loans, neither a servicing asset nor servicing liability was recognized as part of the Signature Transaction. The Interim Servicing was completed in March 2024. The Company did not enter into a loss sharing arrangement with the FDIC in connection with the Signature Transaction. The determination of the fair value of the assets acquired and liabilities assumed required management to make estimates about discount rates, future expected cash flows, market conditions and other future events that are highly subjective in nature and subject to change. A summary of the net assets acquired and the estimated fair value adjustments resulting in the bargain purchase gain is as follows: (in millions) March 20, 2023 Net assets acquired before fair value adjustments $ 2,973 Fair value adjustments: Loans (727) Core deposit and other intangibles 464 Certificates of deposit 27 Other net assets and liabilities 39 FDIC Equity Appreciation Instrument (85) Deferred tax liability (690) Bargain purchase gain on Signature Transaction, as initially reported $ 2,001 Adjustments related to items identified subsequent to the initial reporting period as of March 20, 2023: Measurement period adjustments, excluding taxes (134) Change in deferred tax liability 143 Bargain purchase gain on Signature Transaction, as adjusted $ 2,010 In connection with the Signature Transaction, the Company recorded a bargain purchase gain, as adjusted, of approximately $2.0 billion. This includes a $121 million reduction in the bargain purchase gain during the three months ended March 31, 2024 due to final adjustments to the fair value of assets received and liabilities assumed, including the in-transit and other shared accounts. This adjustment is included in non-interest income in the Company’s Consolidated Statement of Income and Comprehensive Income. The bargain purchase gain represents the excess of the estimated fair value of the assets acquired (including cash payments received from the FDIC) over the estimated fair value of the liabilities assumed and was influenced significantly by the FDIC-assisted transaction process. Under the FDIC-assisted transaction process, only certain assets and liabilities are transferred to the acquirer and, depending on the nature and amount of the acquirers bid, the FDIC may be required to make a cash payment to the Company and the Company may be required to make a cash payment to the FDIC. The assets acquired and liabilities assumed and consideration paid in the Signature Transaction were recorded at their estimated fair values based on management’s best estimates using information available at the date of the Signature Transaction. The following table provides the purchase price allocation to the assets acquired and liabilities assumed at their estimated fair values as of the date of the Signature Transaction: (in millions) As Initially Reported Measurement Period Adjustments As Adjusted Purchase Price consideration $ 85 $ 85 Fair value of assets acquired: Cash & cash equivalents 25,043 (142) 24,901 Loans held for sale 232 232 Loans held for investment: Commercial and industrial 10,102 (214) 9,888 Commercial real estate 1,942 (262) 1,680 Consumer and other 174 (1) 173 Total loans held for investment 12,218 (477) 11,741 CDI and other intangible assets 464 — 464 Other assets 679 (266) 413 Total assets acquired 38,636 (885) 37,751 Fair value of liabilities assumed: Deposits 33,568 (61) 33,507 Other liabilities 2,982 (833) 2,149 Total liabilities assumed 36,550 (894) 35,656 Fair value of net identifiable assets 2,086 9 2,095 Bargain purchase gain $ 2,001 $ 9 $ 2,010 During the Measurement Period, the Company recorded measurement period adjustments to adjust the estimated fair value of loans and leases acquired and adjust other assets and accrued expenses and other liabilities for balances ultimately retained by the FDIC. The Company also recognized a net change in the deferred tax liability due to the measurement period adjustments and the secondary offering of shares completed by the FDIC. The Company incurred approximately $236 million in acquisition costs related to the Signature Transaction primarily for legal, advisory, system conversion and other professional services. These costs are recorded within Merger-related and restructuring expenses on the Consolidated Statements of Income and Comprehensive Income. Fair Value of Assets Acquired and Liabilities Assumed Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date, reflecting assumptions that a market participant would use when pricing an asset or liability. In some cases, the estimation of fair values requires management to make estimates about discount rates, future expected cash flows, market conditions, and other future events that are highly subjective in nature and are subject to change. Described below are the methods used to determine the fair values of the significant assets acquired and liabilities assumed in the Signature Transaction. Cash and Cash Equivalents The estimated fair value of cash and cash equivalents approximates their stated face amounts, as these financial instruments are either due on demand or have short-term maturities. Loans and leases The fair value for loans was based on a discounted cash flow methodology that considered credit loss expectations, market interest rates and other market factors such as liquidity from the perspective of a market participant. Loans were grouped together according to similar characteristics and were treated in the aggregate when applying various valuation techniques. The probability of default, loss given default and prepayment assumptions were the key factors driving credit losses which were embedded into the estimated cash flows. These assumptions were informed by internal data on loan characteristics, historical loss experience, and current and forecasted economic conditions. The interest and liquidity component of the estimate was determined by discounting interest and principal cash flows through the expected life of each loan. The discount rates used for loans are based on current market rates for new originations of comparable loans and include adjustments for liquidity. The discount rates do not include a factor for credit losses as that has been included as a reduction to the estimated cash flows. Acquired loans were marked to fair value and adjusted for any PCD gross up as of the date of the Signature Transaction. Deposit Liabilities The fair value of deposit liabilities with no stated maturity (i.e., non-interest-bearing and interest-bearing checking accounts) is equal to the carrying amounts payable on demand. The fair value of certificates of deposit represents contractual cash flows, discounted using interest rates currently offered on deposits with similar characteristics and remaining maturities. Core Deposit Intangible Core deposit intangible (“CDI”) is a measure of the value of non-interest-bearing and interest-bearing checking accounts, savings accounts, and money market accounts that are acquired in a business combination. The fair value of the CDI was determined using a discounted cash flow methodology which considered discount rate, customer attrition rates, and other relevant market assumptions. This method estimated the fair value by discounting the present value of the expected cost savings attributable to the core deposit funding, relative to an alternative source of funding. The CDI relating to the Signature Transaction will be amortized over an estimated useful life of 10 years using the sum of years digits depreciation method. The Company evaluates such identifiable intangibles for impairment when an indication of impairment exists. CDI does not significantly impact our liquidity or capital ratios. PCD loans Purchased loans that reflect a more than insignificant deterioration of credit from origination are considered PCD. For PCD loans and leases, the initial estimate of expected credit losses is recognized in the allowance for credit losses (“ACL”) on the date of acquisition using the same methodology as other loans and leases held-for-investment. The following table provides a summary of loans and leases purchased as part of the Signature Transaction with credit deterioration and the associated credit loss reserve at acquisition: (in millions) Total Par value (UPB) $ 583 ACL at acquisition (13) Non-credit (discount) (76) Fair value $ 494 Unaudited Pro Forma Information – Signature Transaction The Company’s operating results for the year ended December 31, 2023 and the three months ended March 31, 2024 include the operating results of the acquired assets and assumed liabilities of Signature subsequent to the acquisition on March 20, 2023. Due to the use of multiple systems and integration of the operating activities into those of the Company, historical reporting for the former Signature operations is impracticable and thus disclosures of the revenue from the assets acquired and income before income taxes is impracticable for the period subsequent to acquisition. Signature was only in operation from March 12, 2023 to March 20, 2023 and does not have historical financial information on which we could base pro forma information. Additionally, we did not acquire all assets or assume all liabilities of Signature and the historical operations are not consistent with the transaction. Therefore, it is impracticable to provide pro forma information on revenues and earnings for the Signature Transaction in accordance with ASC 805-10-50-2.

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income	3 Months Ended
	Mar. 31, 2024
Equity [Abstract]
Accumulated Other Comprehensive Income	Accumulated Other Comprehensive Income The following table sets forth the components in accumulated other comprehensive income: (in millions) Three Months Ended March 31, 2024 Details about Accumulated Other Comprehensive Loss Amount Reclassified out of Accumulated Other Comprehensive Loss (1) Affected Line Item in the Consolidated Statements of Income and Comprehensive Income Unrealized gains on available-for-sale securities: $ — Net gain on securities — Income tax expense $ — Net gain on securities, net of tax Unrealized gains on cash flow hedges: $ 23 Interest expense (6) Income tax benefit $ 17 Net gain on cash flow hedges, net of tax Amortization of defined benefit pension plan items: Past service liability $ — Included in the computation of net periodic credit (2) Actuarial losses (1) Included in the computation of net periodic cost (2) (1) Total before tax — Income tax benefit $ (1) Amortization of defined benefit pension plan items, net of tax Total reclassifications for the period $ 16 (1) Amounts in parentheses indicate expense items. (2) See Note 12 - Pension and Other Post-Retirement Benefits for additional information. The following table summarizes the Company's preferred stock at March 31, 2024: Preferred Stock Series Amount Outstanding (in millions) Issued Date Shares Authorized Shares Issued Shares Outstanding (1) Par Value Liquidation Preference 6.375% Fixed-to-Floating Rate Perpetual Noncumulative Series A $ 503 March 17, 2017 5,000,000 515,000 515,000 $ 0.01 1,000 13.00% Fixed Rate Perpetual Noncumulative Convertible Series B $ 258 March 11, 2024 267,062 192,062 192,062 $ 0.01 2,000 13.00% Fixed Rate Perpetual Noncumulative Convertible Series C $ 337 March 11, 2024 523,369 256,307 249,556 $ 0.01 2,000 Non-Voting Common Equivalent Series D $ — N/A 315,000 0 0 $ 0.01 $ 0.0001 (1) Shares outstanding for Series C excludes 6,751 shares converted to common shares following issuance. Series A Preferred stock Each Series A preferred share represent 1/40th interest in a share of the Company’s Fixed-to-Floating Rate Series A Noncumulative Perpetual Preferred Stock, with a liquidation preference of $1.00 per share (equivalent to $25 per share). Dividends accrue on the shares at a fixed rate equal to 6.375 percent per annum until March 17, 2027, and a floating rate equal to three-month SOFR plus 408.26 basis points per annum beginning on March 17, 2027. Dividends will be payable in arrears on March 17, June 17, September 17, and December 17 of each year, which commenced on June 17, 2017. In the first quarter of 2024, we paid dividends on our Series A preferred stock of $15.94 per share. Series B Preferred Stock Each share of Series B Noncumulative Convertible Preferred Stock, par value $0.01 per share (the “Series B Preferred Stock”), is automatically convertible into 1,000 shares of our common stock (or one share of Series C Preferred Stock in limited circumstances) in the event of a transfer consistent with the rules and limitations of Regulation Y (a "Reg Y Transfer"). As of March 31, 2024, all the issued and outstanding shares of Series B Preferred Stock represented the right (on an as converted basis) to receive approximately 192 million shares of our common stock. Series B Preferred Stock shareholders do not have voting rights, except in limited circumstances. Series B Preferred Stock provides for quarterly non-cumulative cash dividends at an annual rate of 13 percent, if declared by the Board, until the receipt of the requisite shareholder approval of both (a) an amendment to the Amended and Restated Certificate of Incorporation of the Company to increase the number of authorized shares of our common stock from 900,000,000 to at least 1,700,000,000; and (b) the issuance of shares of our common stock in connection with the March 2024 capital raise pursuant to NYSE listing rules (the “Stockholder Approvals”). Until receipt of the Stockholder Approvals, each share of Series B Preferred Stock is entitled to a liquidation preference equal to $2,000 per share. Series C Preferred Stock Each share of Series C Noncumulative Convertible Preferred Stock, par value $0.01 per shares (“Series C Preferred Stock”), is automatically convertible into 1,000 shares of our common stock upon the occurrence of certain events (including receipt of the Stockholder Approvals). In addition, in connection with Reg Y Transfers, the Series C Preferred Stock is automatically convertible into 1,000 shares of our common stock. As of March 31, 2024, all the issued and outstanding shares of Series C Preferred Stock represented the right (on an as converted basis) to receive approximately 249.6 million shares of our common stock. Series C Preferred Stock shareholders do not have voting rights, except in limited circumstances. Series C Preferred Stock provides for quarterly non-cumulative cash dividends at an annual rate of 13 percent, if declared by the Board. Each share of Series C Preferred Stock is entitled to a liquidation preference equal to $2,000 per share. The Series B and C Preferred Stock is classified in mezzanine equity as it is redeemable for cash, contingent on an event that is not solely in the control of the Company. The Series B and C Preferred Stock is not remeasured because it is currently not probable that it will become redeemable. Warrants Warrants were issued to purchase shares of a new class of non-voting, common-equivalent preferred stock of the Company, par value $0.01 per share (the "Series D NVCE Stock") for $2,500 per share. The warrants are not exercisable until September 10, 2024 and expire 7 years after issuance. Each share of Series D NVCE Stock is convertible into 1,000 shares of our common stock (or, in certain limited circumstances, one share of Series C Preferred Stock) in a Reg Y Transfer. All shares of Series D NVCE Stock represent the right (on an as converted basis) to receive 315 million shares of our common stock for an exercise price of $2.50 per common share. The terms of the warrant allow net settlement in shares and will not be exercisable for 180 days after closing.

Investment Securities

Investment Securities	3 Months Ended
	Mar. 31, 2024
Investments, Debt and Equity Securities [Abstract]
Investment Securities	Investment Securities The following tables summarize the Company’s portfolio of debt securities available for sale and equity investments with readily determinable fair values: March 31, 2024 (in millions) Amortized Cost (1) Gross Unrealized Gain Gross Unrealized Loss Fair Value Debt securities available-for-sale Mortgage-Related Debt Securities: GSE certificates $ 1,342 $ 1 $ 163 $ 1,180 GSE CMOs 6,167 25 412 5,780 Private Label CMOs 171 5 — 176 Total mortgage-related debt securities $ 7,680 $ 31 $ 575 $ 7,136 Other Debt Securities: U. S. Treasury obligations $ — $ — $ — $ — GSE debentures 1,752 — 312 1,440 Asset-backed securities (2) 291 — 4 287 Municipal bonds 6 — — 6 Corporate bonds 364 — 24 340 Foreign notes 35 — — 35 Capital trust notes 97 5 10 92 Total other debt securities $ 2,545 $ 5 $ 350 $ 2,200 Total debt securities available for sale $ 10,225 $ 36 $ 925 $ 9,336 Equity securities: Mutual funds $ 16 $ — $ 2 $ 14 Total equity securities $ 16 $ — $ 2 $ 14 Total securities (3) $ 10,241 $ 36 $ 927 $ 9,350 (1) The amortized cost of investment securities is reported net of allowance for credit losses of $1 million. (2) The underlying assets of the asset-backed securities are substantially guaranteed by the U.S. Government. (3) Excludes accrued interest receivable of $35 million included in other assets December 31, 2023 (in millions) Amortized Cost (1) Gross Unrealized Gain Gross Unrealized Loss Fair Value Debt securities available-for-sale Mortgage-Related Debt Securities: GSE certificates $ 1,366 $ 1 $ 146 $ 1,221 GSE CMOs 5,495 48 381 5,162 Private Label CMOs 174 7 1 180 Total mortgage-related debt securities $ 7,035 $ 56 $ 528 $ 6,563 Other Debt Securities: U. S. Treasury obligations $ 198 $ — $ — $ 198 GSE debentures 1,899 1 291 1,609 Asset-backed securities (2) 307 — 5 302 Municipal bonds 6 — — 6 Corporate bonds 365 — 22 343 Foreign Notes 35 — 1 34 Capital trust notes 97 5 12 90 Total other debt securities $ 2,907 $ 6 $ 331 $ 2,582 Total other securities available for sale $ 9,942 $ 62 $ 859 $ 9,145 Equity securities: Mutual funds $ 16 $ — $ 2 $ 14 Total equity securities $ 16 $ — $ 2 $ 14 Total securities (3) $ 9,958 $ 62 $ 861 $ 9,159 (1) The underlying assets of the asset-backed securities are substantially guaranteed by the U.S. Government. (2) Excludes accrued interest receivable of $38 million included in other assets At March 31, 2024, the Company had $1.0 billion of FHLB-NY stock, at cost and $329 million of FHLB-Indianapolis stock, at cost. At December 31, 2023, the Company had $861 million of FHLB-NY stock, at cost and $329 million of FHLB-Indianapolis stock, at cost. The Company maintains an investment in FHLB stock partly in conjunction with its membership in the FHLB and partly related to its access to the FHLB funding it utilizes. In addition, at March 31, 2024, the Company had $203 million of Federal Reserve Bank stock, at cost. The Company had $203 million of Federal Reserve Bank stock, at December 31, 2023. There were no net unrealized losses on equity securities recognized in earnings for the three months ended March 31, 2024 and 2023. The following table summarizes, by contractual maturity, the amortized cost of securities at March 31, 2024: Mortgage- Related Securities U.S. Government and GSE Obligations State, County, and Municipal Other Debt Securities (1) Fair Value ( in millions) Available-for-Sale Debt Securities: Due within one year $ 2 $ 250 $ — $ 50 $ 299 Due from one to five years 172 — — 304 455 Due from five to ten years 311 1,502 6 102 1,565 Due after ten years 7,195 — — 331 7,017 Total debt securities available for sale $ 7,680 $ 1,752 $ 6 $ 787 $ 9,336 (1) Includes corporate bonds, capital trust notes, foreign notes, and asset-backed securities. The following table presents securities having a continuous unrealized loss position for less than twelve months and for twelve months or longer as of March 31, 2024: Less than Twelve Months Twelve Months or Longer Total (in millions) Fair Value Unrealized Loss Fair Value Unrealized Loss Fair Value Unrealized Loss Temporarily Impaired Securities: U. S. Treasury obligations $ — $ — $ — $ — $ — $ — U.S. Government agency and GSE obligations — — 1,441 311 1,441 311 GSE certificates 53 1 1,087 163 1,140 164 Private Label CMOs 15 — 3 — 18 — GSE CMOs 1,292 27 2,340 385 3,632 412 Asset-backed securities — — 207 4 207 4 Municipal bonds — — 6 — 6 — Corporate bonds — — 341 24 341 24 Foreign notes — — 10 — 10 — Capital trust notes — — 82 10 82 10 Equity securities — — 14 2 14 2 Total temporarily impaired securities $ 1,360 $ 28 $ 5,531 $ 899 $ 6,891 $ 927 The following table presents securities having a continuous unrealized loss position for less than twelve months and for twelve months or longer as of December 31, 2023: Less than Twelve Months Twelve Months or Longer Total (in millions) Fair Value Unrealized Loss Fair Value Unrealized Loss Fair Value Unrealized Loss Temporarily Impaired Securities: U. S. Treasury obligations $ — $ — $ — $ — $ — $ — U.S. Government agency and GSE obligations 181 1 1,362 290 1,543 291 GSE certificates 312 5 843 141 1,155 146 Private Label CMOs 29 1 — — 29 1 GSE CMOs 1,835 77 1,312 304 3,147 381 Asset-backed securities — — 228 5 228 5 Municipal bonds — — 6 — 6 — Corporate bonds — — 343 22 343 22 Foreign notes — — 9 1 9 1 Capital trust notes — — 81 12 81 12 Equity securities — — 14 2 14 2 Total temporarily impaired securities $ 2,357 $ 84 $ 4,198 $ 777 $ 6,555 $ 861 The investment securities designated as having a continuous loss position for twelve months or more at March 31, 2024 consisted of one hundred eighty agency collateralized mortgage obligations, six capital trusts notes, seven asset-backed securities, twelve corporate bonds, thirty-nine US government agency bonds, three hundred twenty-six mortgage-backed securities, one mutual fund, one municipal bond, one private collateralized mortgage obligations and one foreign note. The investment securities designated as having a continuous loss position for twelve months or more at December 31, 2023 consisted of eighty-four agency collateralized mortgage obligations, six capital trusts notes, eight asset-backed securities, twelve corporate bonds, thirty-seven US government agency bonds, three hundred two mortgage-backed securities, one mutual fund, one foreign debt and one municipal bond. The Company evaluates available-for-sale debt securities in unrealized loss positions at least quarterly to determine if an allowance for credit losses is required. We also assess whether (i) we intend to sell, or (ii) it is more likely than not that we will be required to sell, the security before recovery of its amortized cost basis. If either of these criteria is met, any previously recognized allowances are charged off and the security’s amortized cost basis is written down to fair value through income. If neither of the aforementioned criteria are met, we evaluate whether the decline in fair value has resulted from credit losses or other factors. If this assessment indicates that a credit loss exists, the present value of cash flows expected to be collected from the security are compared to the amortized cost basis of the security. If the present value of cash flows expected to be collected is less than the amortized cost basis, a credit loss exists and an allowance for credit losses is recorded for the credit loss, limited by the amount that the fair value is less than the amortized cost basis. Any impairment that has not been recorded through an allowance for credit losses is recognized in other comprehensive income. During the three months ended March 31, 2024, the Company recorded a $1 million allowance for credit losses related to a corporate debt security. None of the remaining unrealized losses identified as of March 31, 2024 or December 31, 2023 relates to the marketability of the securities or the issuers’ ability to honor redemption obligations. Rather, the unrealized losses relate to changes in interest rates relative to when the investment securities were purchased, and do not indicate credit-related impairment. Management based this conclusion on an analysis of each issuer including a detailed credit assessment of each issuer. The Company does not intend to sell, and it is not more likely than not that the Company will be required to sell, the positions before the recovery of their amortized cost basis, which may be at maturity. As such, no additional allowance for credit losses was recorded with respect to debt securities as of March 31, 2024.

Loans and Leases

Loans and Leases	3 Months Ended
	Mar. 31, 2024
Receivables [Abstract]
Loans and Leases	Loans and Leases The Company classifies loans that we have the intent and ability to hold for the foreseeable future or until maturity as LHFI. We report LHFI loans at their amortized cost, which includes the outstanding principal balance adjusted for any unamortized premiums, discounts, deferred fees and unamortized fair value adjustments for acquired loans: March 31, 2024 December 31, 2023 (dollars in millions) Amount Percent of Amount Percent of Loans and Leases Held for Investment: Mortgage Loans: Multi-family $ 36,859 44.8 % $ 37,265 44.0 % Commercial real estate 10,323 12.5 % 10,470 12.4 % One-to-four family first mortgage 5,807 7.1 % 6,061 7.2 % Acquisition, development, and construction 3,207 3.9 % 2,912 3.4 % Total mortgage loans held for investment (1) $ 56,196 68.3 % $ 56,708 67.0 % Other Loans: Commercial and industrial 21,428 26.0 % 22,065 26.1 % Lease financing, net of unearned income of $243 and $258, respectively 2,990 3.6 % 3,189 3.8 % Total commercial and industrial loans (2) 24,418 29.6 % 25,254 29.8 % Other 1,713 2.1 % 2,657 3.1 % Total other loans held for investment 26,131 31.7 % 27,911 33.0 % Total loans and leases held for investment (1) $ 82,327 100.0 % $ 84,619 100.0 % Allowance for credit losses on loans and leases (1,215) (992) Total loans and leases held for investment, net 81,112 83,627 Loans held for sale, at fair value 981 1,182 Total loans and leases, net $ 82,093 $ 84,809 (1) Excludes accrued interest receivable of $410 million and $410 million at March 31, 2024 and December 31, 2023, respectively, which is included in other assets in the Consolidated Statements of Condition. (2) Includes specialty finance loans and leases of $4.8 billion and $5.2 billion at March 31, 2024 and December 31, 2023, respectively. Loans Held-for-Sale Loans held-for-sale at March 31, 2024 totaled $981 million, down from $1.2 billion at December 31, 2023. We classify loans as held for sale when we originate or purchase loans that we intend to sell. We have elected the fair value option for nearly all of this portfolio, except the SBA loans. We estimate the fair value of mortgage loans based on quoted market prices for securities backed by similar types of loans, where available, or by discounting estimated cash flows using observable inputs inclusive of interest rates, prepayment speeds and loss assumptions for similar collateral. Asset Quality All asset quality information excludes loans with government guarantees that are insured by U.S government agencies. A s of March 31, 2024, these loans totaled $507 million. A loan generally is classified as a non-accrual loan when it is 90 days or more past due or when it is deemed to be impaired because the Company no longer expects to collect all amounts due according to the contractual terms of the loan agreement. When a loan is placed on non-accrual status, management ceases the accrual of interest owed, and previously accrued interest is charged against interest income. A loan is generally returned to accrual status when the loan is current and management has reasonable assurance that the loan will be fully collectible. Interest income on non-accrual loans is recorded when received in cash. At March 31, 2024 and December 31, 2023 we had no loans that were nonperforming and still accruing. The following table presents information regarding the quality of the Company’s loans held for investment at March 31, 2024: (in millions) Loans 30-89 Days Past Due Non- Accrual Loans Total Past Due Loans Current Loans Total Loans Receivable Multi-family $ 103 $ 339 $ 442 $ 36,417 $ 36,859 Commercial real estate 9 264 273 10,050 10,323 One-to-four family first mortgage 26 98 124 5,683 5,807 Acquisition, development, and construction 6 3 9 3,198 3,207 Commercial and industrial (1) 60 73 133 24,285 24,418 Other 8 21 29 1,684 1,713 Total $ 212 $ 798 $ 1,010 $ 81,317 $ 82,327 (1) Includes lease financing receivables. The following table presents information regarding the quality of the Company’s loans held for investment at December 31, 2023: (in millions) Loans 30-89 Days Past Due Non- Accrual Loans Total Past Due Loans Current Loans (2) Total Loans Receivable Multi-family $ 121 $ 138 $ 259 $ 37,006 $ 37,265 Commercial real estate 28 128 156 10,314 10,470 One-to-four family first mortgage 40 95 135 5,926 6,061 Acquisition, development, and construction 2 2 4 2,908 2,912 Commercial and industrial (1) 37 43 80 25,174 25,254 Other 22 22 44 2,613 2,657 Total $ 250 $ 428 $ 678 $ 83,941 $ 84,619 (1) Includes lease financing receivables. The Company conducted a thorough review of its largest 350 real estate loans at the end of the first quarter of 2024. This review included both internal collateral valuation analysis, and obtaining third-party estimates of collateral values, given the potential reliance on the underlying assets as part of the Borrower’s ability to repay debt. The review also included analysis of the most currently available borrower financial information to evaluate the ability of the underlying collateral to generate sufficient cash flow as the primary source of repayment. The Company downgraded certain loans in the first quarter of 2024 as a result of this review. The downgrades were principally related to loans with upcoming maturities or repricing where the estimated property net operating income would not be sufficient to fully cover pro-forma debt service when applying current market rates and terms, and the underlying collateral values are estimated to have declined to at or below the loan carrying amount. These downgrades increased loans classified as substandard or worse by $2.3 billion. Downgrades to substandard or below reflect the potential a loss may occur if deficiencies in the primary source of repayment for these loans are unable to be corrected. The following table summarizes the Company’s portfolio of loans held for investment by credit quality indicator at March 31, 2024: ` (in millions) Multi- Family Commercial Real Estate One-to- Four Family Acquisition, Development, and Construction Commercial and Industrial Other Total Loans (1) Credit Quality Indicator: Pass $ 32,209 $ 8,417 $ 4,985 $ 3,081 $ 23,816 $ 1,682 $ 74,190 Special mention 702 237 — 72 148 — 1,159 Substandard 3,948 1,669 822 54 454 31 6,978 Total $ 36,859 $ 10,323 $ 5,807 $ 3,207 $ 24,418 $ 1,713 $ 82,327 (1) Includes loans carried under the fair value option The following table summarizes the Company’s portfolio of loans held for investment by credit quality indicator at December 31, 2023: (in millions) Multi- Family Commercial Real Estate One-to- Four Family Acquisition, Development, and Construction Commercial and Industrial (2) Other Total Loans Credit Quality Indicator: Pass $ 34,170 $ 8,734 $ 5,328 $ 2,825 $ 24,683 $ 2,634 $ 78,374 Special mention 768 367 — 57 335 — 1,527 Substandard 2,327 1,369 733 30 236 23 4,718 Total $ 37,265 $ 10,470 $ 6,061 $ 2,912 $ 25,254 $ 2,657 $ 84,619 The preceding classifications are the most current ones available and generally have been updated within the last twelve months. In addition, they follow regulatory guidelines and can generally be described as follows: pass loans are of satisfactory quality; special mention loans have potential weaknesses that deserve management’s close attention; substandard loans are inadequately protected by the current net worth and paying capacity of the borrower or of the collateral pledged (these loans have a well-defined weakness and there is a possibility that the Company will sustain some loss); and doubtful loans, based on existing circumstances, have weaknesses that make collection or liquidation in full highly questionable and improbable. In addition, one-to-four family loans are classified based on the duration of the delinquency. The following table presents, by credit quality indicator, loan class, and year of origination, the amortized cost basis of the Company’s loans and leases as of March 31, 2024: Vintage Year (in millions) 2024 2023 2022 2021 2020 Prior To Revolving Loans Revolving Loans Converted to Term Loans Total Pass $ 281 $ 3,425 $ 12,524 $ 9,987 $ 8,571 $ 11,760 $ 2,128 $ 15 $ 48,691 Special Mention 4 — 139 85 74 631 78 — 1,011 Substandard — 65 401 351 436 5,235 6 — 6,494 Total mortgage loans $ 285 $ 3,490 $ 13,064 $ 10,423 $ 9,081 $ 17,626 $ 2,212 $ 15 $ 56,196 Current-period gross write-offs — — — (6) (3) (66) — — (75) Pass $ 5,662 $ 3,548 $ 3,326 $ 1,401 $ 896 $ 1,599 $ 8,901 $ 166 $ 25,499 Special Mention 18 4 48 17 13 5 43 — 148 Substandard 10 13 189 42 40 79 110 1 484 Total other loans $ 5,690 $ 3,565 $ 3,563 $ 1,460 $ 949 $ 1,683 $ 9,054 $ 167 $ 26,131 Current-period gross write-offs $ — $ (1) $ (8) $ (5) $ — $ (2) $ — $ — $ (16) Total $ 5,975 $ 7,055 $ 16,627 $ 11,883 $ 10,030 $ 19,309 $ 11,266 $ 182 $ 82,327 When management determines that foreclosure is probable, for loans that are individually evaluated the expected credit losses are based on the fair value of the collateral adjusted for selling costs. When the borrower is experiencing financial difficulty at the reporting date and repayment is expected to be provided substantially through the operation or sale of the collateral, the collateral-dependent practical expedient has been elected and expected credit losses are based on the fair value of the collateral at the reporting date, adjusted for selling costs as appropriate. For CRE loans, collateral properties include office buildings, warehouse/distribution buildings, shopping centers, apartment buildings, residential and commercial tract development. The primary source of repayment on these loans is expected to come from the sale, permanent financing or lease of the real property collateral. CRE loans are impacted by fluctuations in collateral values, as well as the ability of the borrower to obtain permanent financing. The following table summarizes the extent to which collateral secures the Company’s collateral-dependent loans held for investment by collateral type as of March 31, 2024: Collateral Type (in millions) Real Property Other Multi-family $ 457 $ — Commercial real estate 412 — One-to-four family first mortgage 107 — Acquisition, development, and construction 5 — Commercial and industrial — 78 Other — — Total collateral-dependent loans held for investment $ 981 $ 78 Other collateral type consists of taxi medallions, cash, accounts receivable and inventory. There were no significant changes in the extent to which collateral secures the Company’s collateral-dependent financial assets during the three months ended March 31, 2024. At March 31, 2024 and December 31, 2023, the Company had $74 million and $81 million of residential mortgage loans in the process of foreclosure, respectively. Modifications to Borrowers Experiencing Financial Difficulty When borrowers are experiencing financial difficulty, the Company may make certain loan modifications as part of loss mitigation strategies to maximize expected payment. Modifications in the form of principal forgiveness, an interest rate reduction, or an other-than-insignificant payment delay or a term extension that have occurred in the current reporting period to a borrower experiencing financial difficulty are disclosed along with the financial impact of the modifications. The following table summarizes the amortized cost basis of loans modified during the reporting period to borrowers experiencing financial difficulty, disaggregated by class of financing receivable and type of modification: Amortized Cost (dollars in millions) Interest Rate Reduction Term Extension Combination - Interest Rate Reduction & Term Extension Total Percent of Total Loan class Three months ended March 31, 2024 Multi-family $ 8 $ — $ — $ 8 0.08 % Commercial real estate 2 — — 2 0.02 % One-to-four family first mortgage — 1 1 2 0.03 % Commercial and Industrial — 13 — 13 0.06 % Other Consumer — — 1 1 0.06 % Total $ 10 $ 14 $ 2 $ 26 Three Months Ended March 31, 2023 Multi-family $ — $ — $ — $ — — % Commercial real estate 44 — — 44 0.42 % One-to-four family first mortgage — 1 1 2 0.03 % Commercial and Industrial — — — — — % Other Consumer $ — $ — $ — — — % Total $ 44 $ 1 $ 1 $ 46 The following table describes the financial effect of the modification made to borrowers experiencing financial difficulty: Interest Rate Reduction Term Extension Weighted-average contractual interest rate From To Weighted-average Term (in years) Three months ended March 31, 2024 Multi-family 8.13 % 6.95 % Commercial real estate 8.08 % 6.00 % One-to-four family first mortgage 4.66 % 3.76 % 15.3 Commercial and industrial 6.78 % 6.50 % 0.3 Other Consumer 11.01 % 4.76 % 1.8 Three Months Ended March 31, 2023 Multi-family — % — % Commercial real estate 10.50 % 4.00 % One-to-four family first mortgage 4.84 % 3.97 % 12.7 Commercial and industrial — % — % Other Consumer — % — % As of March 31, 2024, there were $3 million one-to-four family first mortgages that were modified for borrowers experiencing financial difficulty that received term extension and subsequently defaulted during the period and $3 million one-to-four family first mortgages that were combination modifications and subsequently defaulted during the period. The performance of loans made to borrowers experiencing financial difficulty in which modifications were made is closely monitored to understand the effectiveness of modification efforts. The following tables depict the performance of loans that have been modified during the twelve-month period ended March 31, 2024: March 31, 2024 (dollars in millions) Current 30 - 89 Past Due 90+ Past Due Total Multi-family $ 8 $ — $ — 8 Commercial real estate 2 — — 2 One-to-four family first mortgage $ 2 $ — $ 8 $ 10 Commercial and industrial 12 2 — 14 Other Consumer 1 — — 1 Total $ 25 $ 2 $ 8 $ 35 March 31, 2023 (dollars in millions) Current 30 - 89 Past Due 90+ Past Due Total One-to-four family first mortgage $ — $ — $ 3 $ 3 Commercial and industrial 44 — — 44 Total $ 44 $ — $ 3 $ 47

Allowance for Credit Losses on

Allowance for Credit Losses on Loans and Leases	3 Months Ended
	Mar. 31, 2024
Credit Loss [Abstract]
Allowance for Credit Losses on Loans and Leases	Allowance for Credit Losses on Loans and Leases Allowance for Credit Losses on Loans and Leases The following table summarizes activity in the allowance for credit losses for the periods indicated: For the Three Months Ended March 31, 2024 2023 (in millions) Mortgage Other Total Mortgage Other Total Balance, beginning of period $ 756 $ 236 $ 992 $ 290 $ 103 $ 393 Adjustment for Purchased PCD Loans — — 13 13 Charge-offs (75) (16) (91) (2) (3) (5) Recoveries 1 9 10 — 5 5 Provision for (recovery of) credit losses on loans and leases 311 (7) 304 (5) 149 144 Balance, end of period $ 993 $ 222 $ 1,215 $ 283 $ 267 $ 550 At March 31, 2024, the allowance for credit losses on loans and leases was $1.2 billion compared to $992 million at December 31, 2023, up $223 million reflecting changes in market conditions over the quarter. In the first quarter we completed an in-depth review of our largest multi-family and commercial real estate loans, which in combination with our modeling, suggested credit losses as of March 31 had increased. In the first quarter, we now expect market interest rates to be higher for a longer period of time which is expected to put additional pressure on the ability for some borrowers whose rates reset to current levels to cover debt service because, when combined with inflationary pressure on operating costs and limits on the ability to increase rental rates, debt service levels may approach or exceed some properties' net operating income, which increases the risk of loss. We also have continuing pressure in the office portfolio due to remote working and other factors leading to a decline in occupancy levels that reduces operating income and has led to declining property values. As of March 31, 2024 and December 31, 2023, the allowance for unfunded commitments totaled $73 million and $52 million, respectively. The allowance for credit losses on loans and leases to total loans held for investment ratio increased to 1.48 percent at March 31, 2024, compared to 1.17 percent at December 31, 2023. Excluding loans with government guarantees and warehouse loans, the allowance for credit losses was 1.59 percent at March 31, 2024, compared to 1.26 percent at December 31, 2023. The following table presents additional information about the Company’s nonaccrual loans at March 31, 2024: (in millions) Recorded Investment Related Allowance Interest Income Recognized Nonaccrual loans with no related allowance: Multi-family $ 334 $ — $ — Commercial real estate 188 — 3 One-to-four family first mortgage 89 — — Acquisition, development, and construction — — — Other (includes C&I) 45 — — Total nonaccrual loans with no related allowance $ 656 $ — $ 3 Nonaccrual loans with an allowance recorded: Multi-family $ 5 $ 1 $ — Commercial real estate 76 17 — One-to-four family first mortgage 9 — — Acquisition, development, and construction 3 2 — Other (includes C&I) 49 28 — Total nonaccrual loans with an allowance recorded $ 142 $ 48 $ — Total nonaccrual loans: Multi-family $ 339 $ 1 $ — Commercial real estate 264 17 3 One-to-four family first mortgage 98 — — Acquisition, development, and construction 3 2 — Other (includes C&I) 94 28 — Total nonaccrual loans $ 798 $ 48 $ 3 The following table presents additional information about the Company’s nonaccrual loans at December 31, 2023: (in millions) Recorded Investment Related Allowance Interest Income Recognized Nonaccrual loans with no related allowance: Multi-family $ 134 $ — $ 5 Commercial real estate 53 — 2 One-to-four family first mortgage 85 — — Other (includes C&I) 22 — — Total nonaccrual loans with no related allowance $ 294 $ — $ 7 Nonaccrual loans with an allowance recorded: Multi-family 4 — — Commercial real estate $ 75 $ 17 $ 3 One-to-four family first mortgage 11 2 — Other (includes C&I) 44 28 — Total nonaccrual loans with an allowance recorded $ 134 $ 47 $ 3 Total nonaccrual loans: Multi-family $ 138 $ — $ 5 Commercial real estate 128 17 5 One-to-four family first mortgage 96 2 — Other (includes C&I) 66 28 — Total nonaccrual loans $ 428 $ 47 $ 10

Leases

Leases	3 Months Ended
	Mar. 31, 2024
Leases [Abstract]
Leases	Leases Lessor Arrangements The Company is a lessor in the equipment finance business where it has executed direct financing leases (“lease finance receivables”). The Company produces lease finance receivables through a specialty finance subsidiary that participates in syndicated loans that are brought to them, and equipment loans and leases that are assigned to them, by a select group of nationally recognized sources, and are generally made to large corporate obligors, many of which are publicly traded, carry investment grade or near-investment grade ratings, and participate in stable industries nationwide. Lease finance receivables are carried at the aggregate of lease payments receivable plus the estimated residual value of the leased assets and any initial direct costs incurred to originate these leases, less unearned income, which is accreted to interest income over the lease term using the interest method. The standard leases are typically repayable on a level monthly basis with terms ranging from 24 to 120 months. At the end of the lease term, the lessee usually has the option to return the equipment, to renew the lease or purchase the equipment at the then fair market value (“FMV”) price. For leases with a FMV renewal/purchase option, the relevant residual value assumptions are based on the estimated value of the leased asset at the end of the lease term, including evaluation of key factors, such as, the estimated remaining useful life of the leased asset, its historical secondary market value including history of the lessee executing the FMV option, overall credit evaluation and return provisions. The Company acquires the leased asset at fair market value and provides funding to the respective lessee at acquisition cost, less any volume or trade discounts, as applicable. Therefore, there is generally no selling profit or loss to recognize or defer at inception of a lease. The residual value component of a lease financing receivable represents the estimated fair value of the leased equipment at the end of the lease term. In establishing residual value estimates, the Company may rely on industry data, historical experience, and independent appraisals and, where appropriate, information regarding product life cycle, product upgrades and competing products. Upon expiration of a lease, residual assets are remarketed, resulting in either an extension of the lease by the lessee, a lease to a new customer or purchase of the residual asset by the lessee or another party. Impairment of residual values arises if the expected fair value is less than the carrying amount. The Company assesses its net investment in lease financing receivables (including residual values) for impairment on an annual basis with any impairment losses recognized in accordance with the impairment guidance for financial instruments. As such, net investment in lease financing receivables may be reduced by an allowance for credit losses with changes recognized as provision expense. On certain lease financings, the Company obtains residual value insurance from third parties to manage and reduce the risk associated with the residual value of the leased assets. At March 31, 2024 and December 31, 2023, the carrying value of residual assets with third-party residual value insurance for at least a portion of the asset value was $294 million and $280 million, respectively. The Company uses the interest rate implicit in the lease to determine the present value of its lease financing receivables. The components of lease income were as follows: Three Months Ended, (in millions) March 31, 2024 March 31, 2023 Interest income on lease financing (1) $ 38 $ 20 (1) Included in Interest Income – Loans and leases in the Consolidated Statements of Income and Comprehensive Income. The increase in interest income on lease financing for the three months ended March 31, 2024 compared to the three months ended March 31, 2023, was driven by lease finance receivables acquired in the Signature Transaction. At March 31, 2024 and December 31, 2023, the carrying value of net investment in leases, excluding purchase accounting adjustments was $3.3 billion and $3.5 billion, respectively. The components of net investment in direct financing leases, including the carrying amount of the lease receivables, as well as the unguaranteed residual asset were as follows: (in millions) March 31, 2024 December 31, 2023 Net investment in the lease - lease payments receivable $ 2,960 $ 3,187 Net investment in the lease - unguaranteed residual assets 329 321 Total lease payments $ 3,289 $ 3,508 The following table presents the remaining maturity analysis of the undiscounted lease receivables, as well as the reconciliation to the total amount of receivables recognized in the Consolidated Statements of Condition: (in millions) March 31, 2024 2024 $ 410 2025 565 2026 837 2027 509 2028 296 Thereafter 672 Total lease payments $ 3,289 Plus: deferred origination costs 14 Less: unearned income (243) Less: purchase accounting adjustment $ (70) Total lease finance receivables, net $ 2,990 Lessee Arrangements The Company has operating leases for corporate offices, branch locations, and certain equipment. These leases generally have terms of 20 years or less, determined based on the contractual maturity of the lease, and include periods covered by options to extend or terminate the lease when the Company is reasonably certain that it will exercise those options. For the vast majority of the Company’s leases, we are not reasonably certain we will exercise our options to renew to the end of all renewal option periods. The Company determines if an arrangement is a lease at inception. Operating leases are included in other assets and other liabilities in the Consolidated Statements of Condition. ROU assets represent the Company’s right to use an underlying asset for the lease term and lease liabilities represent the obligation to make lease payments arising from the lease. Operating lease ROU assets and liabilities are recognized at commencement date based on the present value of lease payments over the lease term. As the vast majority of the leases do not provide an implicit rate, the incremental borrowing rate (FHLB borrowing rate) is used based on the information available at commencement date in determining the present value of lease payments. The implicit rate is used when readily determinable. The operating lease ROU asset is measured at cost, which includes the initial measurement of the lease liability, prepaid rent and initial direct costs incurred by the Company, less incentives received. Variable costs such as the proportionate share of actual costs for utilities, common area maintenance, property taxes and insurance are not included in the lease liability and are recognized in the period in which they are incurred. The components of lease expense were as follows: Three Months Ended, (in millions) March 31, 2024 March 31, 2023 Operating lease cost $ 18 $ 11 Total lease cost $ 18 $ 11 Supplemental cash flow information related to the leases for the following periods: Three Months Ended, (in millions) March 31, 2024 March 31, 2023 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 18 $ 10 Supplemental balance sheet information related to the leases for the following periods: (in millions, except lease term and discount rate) March 31, 2024 December 31, 2023 Operating Leases: Operating lease right-of-use assets (1) $ 415 $ 426 Operating lease liabilities (2) $ 437 $ 446 Weighted average remaining lease term 10.9 years 11.2 years Weighted average discount rate % 4.70 % 4.71 % (1) Included in Other assets in the Consolidated Statements of Condition. (2) Included in Other liabilities in the Consolidated Statements of Condition. (in millions) March 31, 2024 Maturities of lease liabilities: 2024 $ 54 2025 67 2026 59 2027 53 2028 46 Thereafter 290 Total lease payments $ 569 Less: imputed interest $ (132) Total present value of lease liabilities $ 437
Leases	Leases Lessor Arrangements The Company is a lessor in the equipment finance business where it has executed direct financing leases (“lease finance receivables”). The Company produces lease finance receivables through a specialty finance subsidiary that participates in syndicated loans that are brought to them, and equipment loans and leases that are assigned to them, by a select group of nationally recognized sources, and are generally made to large corporate obligors, many of which are publicly traded, carry investment grade or near-investment grade ratings, and participate in stable industries nationwide. Lease finance receivables are carried at the aggregate of lease payments receivable plus the estimated residual value of the leased assets and any initial direct costs incurred to originate these leases, less unearned income, which is accreted to interest income over the lease term using the interest method. The standard leases are typically repayable on a level monthly basis with terms ranging from 24 to 120 months. At the end of the lease term, the lessee usually has the option to return the equipment, to renew the lease or purchase the equipment at the then fair market value (“FMV”) price. For leases with a FMV renewal/purchase option, the relevant residual value assumptions are based on the estimated value of the leased asset at the end of the lease term, including evaluation of key factors, such as, the estimated remaining useful life of the leased asset, its historical secondary market value including history of the lessee executing the FMV option, overall credit evaluation and return provisions. The Company acquires the leased asset at fair market value and provides funding to the respective lessee at acquisition cost, less any volume or trade discounts, as applicable. Therefore, there is generally no selling profit or loss to recognize or defer at inception of a lease. The residual value component of a lease financing receivable represents the estimated fair value of the leased equipment at the end of the lease term. In establishing residual value estimates, the Company may rely on industry data, historical experience, and independent appraisals and, where appropriate, information regarding product life cycle, product upgrades and competing products. Upon expiration of a lease, residual assets are remarketed, resulting in either an extension of the lease by the lessee, a lease to a new customer or purchase of the residual asset by the lessee or another party. Impairment of residual values arises if the expected fair value is less than the carrying amount. The Company assesses its net investment in lease financing receivables (including residual values) for impairment on an annual basis with any impairment losses recognized in accordance with the impairment guidance for financial instruments. As such, net investment in lease financing receivables may be reduced by an allowance for credit losses with changes recognized as provision expense. On certain lease financings, the Company obtains residual value insurance from third parties to manage and reduce the risk associated with the residual value of the leased assets. At March 31, 2024 and December 31, 2023, the carrying value of residual assets with third-party residual value insurance for at least a portion of the asset value was $294 million and $280 million, respectively. The Company uses the interest rate implicit in the lease to determine the present value of its lease financing receivables. The components of lease income were as follows: Three Months Ended, (in millions) March 31, 2024 March 31, 2023 Interest income on lease financing (1) $ 38 $ 20 (1) Included in Interest Income – Loans and leases in the Consolidated Statements of Income and Comprehensive Income. The increase in interest income on lease financing for the three months ended March 31, 2024 compared to the three months ended March 31, 2023, was driven by lease finance receivables acquired in the Signature Transaction. At March 31, 2024 and December 31, 2023, the carrying value of net investment in leases, excluding purchase accounting adjustments was $3.3 billion and $3.5 billion, respectively. The components of net investment in direct financing leases, including the carrying amount of the lease receivables, as well as the unguaranteed residual asset were as follows: (in millions) March 31, 2024 December 31, 2023 Net investment in the lease - lease payments receivable $ 2,960 $ 3,187 Net investment in the lease - unguaranteed residual assets 329 321 Total lease payments $ 3,289 $ 3,508 The following table presents the remaining maturity analysis of the undiscounted lease receivables, as well as the reconciliation to the total amount of receivables recognized in the Consolidated Statements of Condition: (in millions) March 31, 2024 2024 $ 410 2025 565 2026 837 2027 509 2028 296 Thereafter 672 Total lease payments $ 3,289 Plus: deferred origination costs 14 Less: unearned income (243) Less: purchase accounting adjustment $ (70) Total lease finance receivables, net $ 2,990 Lessee Arrangements The Company has operating leases for corporate offices, branch locations, and certain equipment. These leases generally have terms of 20 years or less, determined based on the contractual maturity of the lease, and include periods covered by options to extend or terminate the lease when the Company is reasonably certain that it will exercise those options. For the vast majority of the Company’s leases, we are not reasonably certain we will exercise our options to renew to the end of all renewal option periods. The Company determines if an arrangement is a lease at inception. Operating leases are included in other assets and other liabilities in the Consolidated Statements of Condition. ROU assets represent the Company’s right to use an underlying asset for the lease term and lease liabilities represent the obligation to make lease payments arising from the lease. Operating lease ROU assets and liabilities are recognized at commencement date based on the present value of lease payments over the lease term. As the vast majority of the leases do not provide an implicit rate, the incremental borrowing rate (FHLB borrowing rate) is used based on the information available at commencement date in determining the present value of lease payments. The implicit rate is used when readily determinable. The operating lease ROU asset is measured at cost, which includes the initial measurement of the lease liability, prepaid rent and initial direct costs incurred by the Company, less incentives received. Variable costs such as the proportionate share of actual costs for utilities, common area maintenance, property taxes and insurance are not included in the lease liability and are recognized in the period in which they are incurred. The components of lease expense were as follows: Three Months Ended, (in millions) March 31, 2024 March 31, 2023 Operating lease cost $ 18 $ 11 Total lease cost $ 18 $ 11 Supplemental cash flow information related to the leases for the following periods: Three Months Ended, (in millions) March 31, 2024 March 31, 2023 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 18 $ 10 Supplemental balance sheet information related to the leases for the following periods: (in millions, except lease term and discount rate) March 31, 2024 December 31, 2023 Operating Leases: Operating lease right-of-use assets (1) $ 415 $ 426 Operating lease liabilities (2) $ 437 $ 446 Weighted average remaining lease term 10.9 years 11.2 years Weighted average discount rate % 4.70 % 4.71 % (1) Included in Other assets in the Consolidated Statements of Condition. (2) Included in Other liabilities in the Consolidated Statements of Condition. (in millions) March 31, 2024 Maturities of lease liabilities: 2024 $ 54 2025 67 2026 59 2027 53 2028 46 Thereafter 290 Total lease payments $ 569 Less: imputed interest $ (132) Total present value of lease liabilities $ 437

Mortgage Servicing Rights

Mortgage Servicing Rights	3 Months Ended
	Mar. 31, 2024
Transfers and Servicing [Abstract]
Mortgage Servicing Rights	Mortgage Servicing Rights The Company has investments in MSRs that result from the sale of loans to the secondary market for which we retain the servicing. The Company accounts for MSRs at their fair value. A primary risk associated with MSRs is the potential reduction in fair value as a result of higher than anticipated prepayments due to loan refinancing prompted, in part, by declining interest rates or government intervention. Conversely, these assets generally increase in value in a rising interest rate environment to the extent that prepayments are slower than anticipated. The Company utilizes derivatives as economic hedges to offset changes in the fair value of the MSRs resulting from the actual or anticipated changes in prepayments stemming from changing interest rate environments. There is also a risk of valuation decline due to higher than expected default rates, which we do not believe can be effectively managed using derivatives. For further information regarding the derivative instruments utilized to manage our MSR risks, see Note 14 - Derivative and Hedging Activities. Changes in the fair value of residential first mortgage MSRs were as follows: Three Months Ended, (in millions) March 31, 2024 March 31, 2023 Balance at beginning of period $ 1,111 $ 1,033 Additions from loans sold with servicing retained 42 38 Reductions from sales (69) — Decrease in MSR fair value due to pay-offs, pay-downs, run-off, model changes, and other (1) (26) (18) Changes in estimates of fair value due to interest rate risk (1) (2) 34 (19) Fair value of MSRs at end of period $ 1,092 $ 1,034 (1) Changes in fair value are included within net return on mortgage servicing rights on the Consolidated Statements of Income and Comprehensive Income. (2) Represents estimated MSR value change resulting primarily from market-driven changes which we manage through the use of derivatives. The following table summarizes the hypothetical resulting fair value of servicing rights using adverse changes of 10 percent and 20 percent to the weighted average of certain significant assumptions used in valuing these assets: March 31, 2024 Fair Value (dollars in millions) Actual 10% adverse change 20% adverse change Option adjusted spread 5.3 % $ 1,072 $ 1,053 Constant prepayment rate 7.7 % 1,054 1,020 Weighted average cost to service per loan $ 68 $ 1,081 $ 1,071 December 31, 2023 Fair Value (dollars in millions) Actual 10% adverse change 20% adverse change Option adjusted spread 5.4 % $ 1,091 $ 1,072 Constant prepayment rate 7.9 % 1,073 1,040 Weighted average cost to service per loan $ 69 $ 1,100 $ 1,090 The sensitivity calculations above are hypothetical and should not be considered to be predictive of future performance. Changes in fair value based on adverse changes in assumptions generally cannot be extrapolated because the relationship of the change in assumption to the change in fair value may not be linear. To isolate the effect of the specified change, the fair value shock analysis is consistent with the identified adverse change, while holding all other assumptions constant. In practice, a change in one assumption generally impacts other assumptions, which may either magnify or counteract the effect of the change. For further information on the fair value of MSRs, see Note 16 - Fair Value Measures. Contractual servicing and subservicing fees, including late fees and other ancillary income are presented below. Contractual servicing fees are included within net return on mortgage servicing rights on the Consolidated Statements of Income and Comprehensive Income. Contractual subservicing fees including late fees and other ancillary income are included within loan administration income on the Consolidated Statements of Income and Comprehensive Income. Subservicing fee income is recorded for fees earned on subserviced loans, net of third-party subservicing costs. The following table summarizes income and fees associated with owned MSRs: Three Months Ended, (in millions) March 31, 2024 March 31, 2023 Net return on mortgage servicing rights Servicing fees, ancillary income and late fees (1) $ 58 $ 56 Decrease in MSR fair value due to pay-offs, pay-downs, run-off, model changes and other (26) (18) Changes in fair value due to interest rate risk 34 (19) Gain on MSR derivatives (2) (44) 3 Net transaction costs (1) (1) Total return (loss) included in net return on mortgage servicing rights $ 21 $ 21 (1) Servicing fees are recorded on an accrual basis. Ancillary income and late fees are recorded on a cash basis. (2) Changes in the derivatives utilized as economic hedges to offset changes in fair value of the MSRs. ]The following table summarizes income and fees associated with our mortgage loans subserviced for others: Three Months Ended, (in millions) March 31, 2024 March 31, 2023 Loan administration income on mortgage loans subserviced Servicing fees, ancillary income and late fees (1) $ 37 $ 36 Charges on subserviced custodial balances (2) (36) (29) Other servicing charges 1 (1) Total income (loss) on mortgage loans subserviced, included in loan administration income $ 2 $ 6 (1) Servicing fees are recorded on an accrual basis. Ancillary income and late fees are recorded on a cash basis. (2) Charges on subserviced custodial balances represent interest due to MSR owner. We also earned approxima tely $10 million in service fee income for loans being serviced for the FDIC related to the Signature transaction.

Variable Interest Entities

Variable Interest Entities	3 Months Ended
	Mar. 31, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Variable Interest Entities	Variable Interest Entities We have no consolidated VIEs as of March 31, 2024 and December 31, 2023.

Borrowed Funds

Borrowed Funds	3 Months Ended
	Mar. 31, 2024
Debt Disclosure [Abstract]
Borrowed Funds	Borrowed Funds The following table summarizes the Company’s borrowed funds: (in millions) March 31, 2024 December 31, 2023 Wholesale borrowings: FHLB advances $ 22,750 $ 19,250 FRB term funding 1,000 1,000 Repurchase agreements 1,958 0 Total wholesale borrowings $ 25,708 $ 20,250 Junior subordinated debentures 580 579 Subordinated notes 439 438 Total borrowed funds $ 26,727 $ 21,267 Accrued interest on borrowed funds is included in “Other liabilities” in the Consolidated Statements of Condition and amounted to $120 million and $50 million, respectively, at March 31, 2024 and December 31, 2023. FHLB Advances The contractual maturities and the next call dates of FHLB advances outstanding at March 31, 2024 were as follows: Contractual Maturity Earlier of Contractual Maturity or Next Call Date (dollars in millions) Year Amount Weighted Average Interest Rate (1) Amount Weighted Average Interest Rate (1) 2024 8,100 4.90 8,600 4.82 2025 3,500 5.68 3,750 5.54 2026 4,000 5.80 4,000 5.80 2027 4,000 5.16 4,000 5.16 2028 2,400 5.62 2,400 5.62 2032 750 3.54 — — Total FHLB advances $ 22,750 $ 22,750 (1) Does not included the effect interest rate swap agreements. FHLB advances include both straight fixed-rate advances and advances under the FHLB convertible advance program, which gives the FHLB the option of either calling the advance after an initial lock-out period of up to five years and quarterly thereafter until maturity, or a one-time call at the initial call date. Junior Subordinated Debentures The Company had $609 million at both March 31, 2024 and December 31, 2023, of outstanding junior subordinated deferrable interest debentures (“junior subordinated debentures”) held by statutory business trusts (the “Trusts”) that issued guaranteed capital securities, excluding purchase accounting adjustments. The following table presents contractual terms of the junior subordinated debentures outstanding at March 31, 2024: Issuer Interest Rate of Capital Securities and Debentures Junior Subordinated Debentures Amount Outstanding (3) Capital Securities Amount Outstanding Date of Original Issue Stated Maturity (dollars in millions) New York Community Capital Trust V (BONUSES Units) (1) 6.00 % $ 147 $ 141 November 04, 2002 November 01, 2051 New York Community Capital Trust X (2) 7.19 % 124 120 December 14, 2006 December 15, 2036 PennFed Capital Trust III (2) 8.84 % 31 30 June 02, 2003 June 15, 2033 New York Community Capital Trust XI (2) 7.21 % 59 58 April 16, 2007 June 30, 2037 Flagstar Statutory Trust II (2) 8.82 % 26 25 December 26, 2002 December 26, 2032 Flagstar Statutory Trust III (2) 8.83 % 26 25 February 19, 2003 April 7, 2033 Flagstar Statutory Trust IV (2) 8.81 % 26 25 March 19, 2003 March 19, 2033 Flagstar Statutory Trust V (2) 7.58 % 26 25 December 29, 2004 January 07, 2035 Flagstar Statutory Trust VI (2) 7.58 % 26 25 March 30, 2005 April 7, 2035 Flagstar Statutory Trust VII (2) 7.34 % 51 50 March 29, 2005 June 15, 2035 Flagstar Statutory Trust VIII (2) 7.08 % 26 25 September 22, 2005 October 7, 2035 Flagstar Statutory Trust IX (2) 7.04 % 26 25 June 28, 2007 September 15, 2037 Flagstar Statutory Trust X (2) 8.09 % 15 15 August 31, 2007 September 15, 2037 Total junior subordinated debentures (3) $ 609 $ 589 (1) Callable subject to certain conditions as described in the prospectus filed with the SEC on November 4, 2002. (2) Callable at any time. (3) Excludes Flagstar Acquisition fair value adjustments o f $30 million. Subordinated Notes The Company had $439 million in subordinated notes outstanding at March 31, 2024, and $438 million outstanding at December 31, 2023. All of the subordinated notes include a fixed rate of interest for a contractual period of time and then are floating thereafter as summarized in the table and information below . Date of Original Issue Stated Maturity Interest Rate at March 31, 2024 Original Issue Amount (1) November 6, 2018 November 6, 2028 8.332% $ 300 (2) October 28, 2020 November 1, 2030 4.125% $ 150 (1) From and including the date of original issuance to, but excluding November 6, 2023, the Notes bore interest at an initial rate of 5.90% per annum payable semi-annually. From and including November 6, 2023 to but excluding the maturity date, the interest rate will reset quarterly to an annual interest rate equal to the then-current three-month SOFR rate plus 304.16 basis points payable quarterly. (2)

Pension and Other Post-Retireme

Pension and Other Post-Retirement Benefits	3 Months Ended
	Mar. 31, 2024
Retirement Benefits [Abstract]
Pension and Other Post-Retirement Benefits	Pension and Other Post-Retirement Benefits The following table sets forth certain disclosures for the Company’s pension and post-retirement plans for the periods indicated: Three Months Ended March 31, 2024 2023 (in millions) Pension Benefits Post- Retirement Benefits (2) Pension Benefits Post- Retirement Benefits Components of net periodic pension expense (credit): (1) Interest cost $ 1 $ — $ 1 $ — Expected return on plan assets (4) — (4) — Amortization of net actuarial loss 1 — 2 — Net periodic (credit) expense $ (2) $ — $ (1) $ — (1) Amounts are included in General and administrative expense on the Consolidated Statements of Income and Comprehensive Income. (2) Post-retirement benefits balances round to zero.

Stock-Related Benefits Plans

Stock-Related Benefits Plans	3 Months Ended
	Mar. 31, 2024
Share-Based Payment Arrangement [Abstract]
Stock-Related Benefits Plans	Stock-Related Benefits Plans Stock Based Compensation At March 31, 2024, the Company had a total of 11,938,776 shares available for grants as restricted stock, options, or other forms of related rights under the 2020 Incentive Plan, which includes the remaining shares available, converted at the merger conversion factor from the legacy Flagstar Bancorp, Inc. 2016 Stock Plan. The Company granted 1,971,715 shares of restricted stock, with an average fair value of $3.98 per share on the date of grant, during the three months ended March 31, 2024. The shares of restricted stock that were granted during the three months ended March 31, 2024 and 2023 vest over one The following table provides a summary of restricted stock award activity: Three Months Ended March 31, 2024 Number of Shares Weighted Average Grant Date Fair Value Unvested at beginning of year 15,173,941 $ 10.49 Granted 1,971,715 3.98 Vested (2,269,230) 10.84 Forfeited (775,917) 10.19 Unvested at end of period 14,100,509 $ 9.54 As of March 31, 2024, unrecognized compensation cost relating to unvested restricted stock totaled $108 million. This amount will be recognized over a remaining weighted average period of 2.3 years . The following table provides a summary of activity with regard to Performance-Based Restricted Stock Units ("PSUs") in the three months ended March 31, 2024: Number of Weighted Performance Expected Outstanding at beginning of year 1,218,288 $ 9.95 Granted 0 — Released 0 — Forfeited (753,636) 10.31 Outstanding at end of period 464,652 9.36 January 1, 2022 - December 31, 2025 March 31, 2025 - 2026 PSUs are subject to adjustment or forfeiture, based upon the achievement by the Company of certain performance standards. Compensation and benefits expense related to PSUs is recognized using the fair value as of the date the units were approved, on a straight-line basis over the vesting period and totaled $1 million for the three months ended March 31, 2024 and 2023. As of March 31, 2024, unrecognized compensation cost relating to unvested restricted stock totaled $2 million. This amount will be recognized over a remaining weighted average period of 1.6 years. Forfeitures of RSAs and PSUs are accounted for as they occur. Stock Options On March 6, 2024 the Company granted 19,000,000 stock options (4,000,000 vest on March 6, 2025 and 15,000,000 shares vest in 12 equal quarterly installments on the final day of each quarter beginning June 30, 2024) to senior executives of the Company. These options expire on March 6, 2034. There were no options granted during the year ended December 31, 2023. The Company generally utilizes the Black- Scholes option pricing model to measure the fair value of stock option grants, although measurements for long-dated options are difficult due to lack of market data appropriate for the instrument lives. No stock options vested during the three months ended March 31, 2024. The Company estimates the options granted in the first quarter of 2024 to have a value of $40 million, which will be recognized in compensation expense over the vesting period. The following table summarizes stock options activity for the period indicated: (in thousands, except per share data) Three Months Ended March 31, 2024 Stock Options Number of Options Weighted- Average Exercise Price per Share Outstanding as of January 1 $ — $ — Granted 19,000 2.31 Vested — — Forfeited — — Unvested at end of period 19,000 $ 2.31 Exercisable at end of period — The following table summarizes outstanding and exercisable stock options by exercise price per share at March 31, 2024 (1) : (in thousands, except per share data) Three Months Ended March 31, 2024 Stock Options Number of Options Weighted- Average Exercise Price per Share Weighted- $2.00 15,000 $ 2.00 10 $3.46 4,000 3.46 10 All stock options 19,000 2.31 10

Derivative and Hedging Activiti

Derivative and Hedging Activities	3 Months Ended
	Mar. 31, 2024
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative and Hedging Activities	Derivative and Hedging Activities The Company is exposed to certain risks arising from both its business operations and economic conditions. The Company principally manages its exposure to a wide variety of business and operational risks through management of its core business activities. The Company manages economic risks, including interest rate and liquidity risks, primarily by managing the amount, sources, and duration of its assets and liabilities and, the use of derivative financial instruments. Specifically, the Company enters into derivative financial instruments to manage exposures that arise from business activities that result in the payment of future known and uncertain cash amounts, the value of which are determined by interest rates. Derivative financial instruments are recorded at fair value in other assets and other liabilities on the Consolidated Statements of Condition. The Company's policy is to present our derivative assets and derivative liabilities on the Consolidated Statement of Condition on a gross basis, even when provisions allowing for set-off are in place. However, for derivative contracts cleared through certain central clearing parties, variation margin payments are recognized as settlements. We are exposed to non-performance risk by the counterparties to our various derivative financial instruments. A majority of our derivatives are centrally cleared through a Central Counterparty Clearing House or consist of residential mortgage interest rate lock commitments further limiting our exposure to non-performance risk. We believe that the non-performance risk inherent in our remaining derivative contracts is minimal based on credit standards and the collateral provisions of the derivative agreements. Derivatives not designated as hedging instruments. The Company maintains a derivative portfolio of interest rate swaps, foreign currency swaps, futures, swaptions and forward commitments used to manage exposure to changes in interest rates and MSR asset values and to meet the needs of customers. The Company also enters into interest rate lock commitments, which are commitments to originate mortgage loans whereby the interest rate on the loan is determined prior to funding and the customers have locked into that interest rate. Market risk on interest rate lock commitments and mortgage LHFS is managed using corresponding forward sale commitments and US Treasury futures. Changes in the fair value of derivatives not designated as hedging instruments are recognized on the Consolidated Statements of Income and Comprehensive Income. Derivatives designated as hedging instruments . The Company has designated certain interest rate swaps as cash flow hedges on overnight SOFR-based variable interest payments on federal home loan bank advances. Changes in the fair value of derivatives designated as cash flow hedges are recorded in other comprehensive income on the Consolidated Statements of Condition and reclassified into interest expense in the same period in which the hedged transaction is recognized in earnings. At March 31, 2024, the Company had $61 million (net-of-tax) of unrealized gains on derivatives classified as cash flow hedges recorded in accumulated other comprehensive loss. The Company had $10 million (net-of-tax) of unrealized gains on derivatives classified as cash flow hedges recorded other comprehensive loss at December 31, 2023. Derivatives that are designated in hedging relationships are assessed for effectiveness using regression analysis at inception and qualitatively thereafter, unless regression analysis is deemed necessary. All designated hedge relationships were, and are expected to be, highly effective as of March 31, 2024. Subsequent to March 31, 2024 we terminated all of our derivatives that were designated in a cash flow or fair value hedge relationship. This action was taken to reduce our asset sensitivity and bring the balance sheet to an interest rate neutral position and did not have any immediate impact to earnings. The remaining impact from the cash flow hedge relationships will be reclassified from other comprehensive income into income over the life of the hedged items. Fair Value of Hedges of Interest Rate Risk The Company is exposed to changes in the fair value of certain of its fixed-rate assets due to changes in interest rates. The Company uses interest rate swaps to manage its exposure to changes in fair value on these instruments attributable to changes in the designated benchmark interest rate. Interest rate swaps designated as fair value hedges involve the payment of fixed-rate amounts to a counterparty in exchange for the Company receiving variable-rate payments over the life of the agreements without the exchange of the underlying notional amount. Such derivatives were used to hedge the changes in fair value of certain of its pools of prepayable fixed rate assets. For derivatives designated and that qualify as fair value hedges, the gain or loss on the derivative as well as the offsetting loss or gain on the hedged item attributable to the hedged risk are recognized in interest income. The Company has interest rate swaps with a notional amounts of $2.0 billion to hedge certain multi-family loans using the portfolio layer method. For the three months ended March 31, 2024, the floating rate received related to the net settlement of these interest rate swaps was greater than the fixed rate payments. As such, interest income from loans and leases in the accompanying Consolidated Statements of Income and Comprehensive Income was increased by $9 million for three months ended March 31, 2024. The fair value basis adjustment on our hedged real estate loans is included in loans and leases held for investment on our Consolidated Statements of Condition. The carrying amount of our hedged loans was $6.0 billion at March 31, 2024, of which unrealized gains of $26 million were due to the fair value hedge relationship. We have designated $2.0 billion of this portfolio of loans in a hedging relationship as of March 31, 2024. The following tables set forth information regarding the Company’s derivative financial instruments: March 31, 2024 Fair Value (in millions) Notional Amount Other Assets Other Liabilities Expiration Dates Derivatives designated as cash flow hedging instruments: Interest rate swaps on FHLB advances $ 5,500 $ 26 $ — 2025-2028 Derivatives designated as fair value hedging instruments: Interest rate swaps on multi-family loans held for investment $ 2,000 $ — $ — 2025-2027 Derivatives not designated as hedging instruments: Assets Futures $ 1,890 $ 1 $ — 2024 Mortgage-backed securities forwards 1,468 7 — 2024 Rate lock commitments 1,847 11 — 2024 Interest rate swaps and swaptions 5,745 103 — 2024-2041 Liabilities Mortgage-backed securities forwards $ 1,375 $ — $ 9 2024 Rate lock commitments 225 — 3 2024 Interest rate swaps and swaptions 2,833 — 61 2024-2054 December 31, 2023 Fair Value (in millions) Notional Amount Other Assets Other Liabilities Expiration Date Derivatives designated as cash flow hedging instruments: Interest rate swaps on FHLB advances $ 5,500 $ — $ 2 2025-2028 Derivatives designated as fair value hedging instruments: Interest rate swaps on multi-family loans held for investment $ 2,000 — 1 2025-2027 Derivatives not designated as hedging instruments: Assets Mortgage-backed securities forwards 1,012 11 — 2024 Rate lock commitments 1,490 12 — 2024 Interest rate swaps and swaptions 5,431 115 — 2024-2041 Liabilities Futures 2,235 — 1 2024 Mortgage-backed securities forwards 1,048 — 32 2024 Rate lock commitments 77 — 3 2024 Interest rate swaps and swaptions 2,720 — 59 2024-2054 The following table presents the derivatives subject to a master netting agreement, including the cash pledged as collateral: March 31, 2024 Gross Amounts Not Offset in the Statements of Condition (in millions) Gross Amount Gross Amounts Netted in the Statements of Condition Net Amount Presented in the Statements of Condition Financial Instruments Cash Collateral Pledged (Received) Derivatives designated hedging instruments: Interest rate swaps on FHLB advances $ 26 $ — $ 26 $ — $ 90 Interest rate swaps on multi-family loans held for investment (1) $ — $ — $ — $ — $ 33 Derivatives not designated as hedging instruments: Assets Mortgage-backed securities forwards $ 7 $ — $ 7 $ — $ — Interest rate swaptions 103 — 103 — 3 Futures 1 — 1 — 1 Total derivative assets $ 111 $ — $ 111 $ — $ 4 Liabilities Mortgage-backed securities forwards 9 — 9 — 8 Interest rate swaps (1) 61 — 61 — 49 Total derivative liabilities $ 70 $ — $ 70 $ — $ 57 (1) Variation margin pledged to, or received from, a Central Counterparty Clearing House to cover the prior days fair value of open positions is considered settlement of the derivative position for accounting purposes. The following table presents the derivatives subject to a master netting agreement, including the cash pledged as collateral: December 31, 2023 Gross Amounts Not Offset in the Statements of Condition (in millions) Gross Amount Gross Amounts Netted in the Statements of Condition Net Amount Presented in the Statements of Condition Financial Instruments Cash Collateral Pledged (Received) Derivatives designated hedging instruments: Interest rate swaps on FHLB advances $ 2 $ — $ 2 $ — $ 75 Interest rate swaps on multi-family loans held for investment(1) 1 — 1 — 27 Derivatives not designated as hedging instruments: Assets Mortgage-backed securities forwards $ 11 $ — $ 11 $ — $ (1) Interest rate swaptions 115 — 115 — (34) Futures — — — — Total derivative assets $ 126 $ — $ 126 $ — $ (35) Liabilities Futures $ 1 $ — $ 1 $ 3 Mortgage-backed securities forwards 32 — 32 — 57 Interest rate swaps (1) 59 — 59 — 42 Total derivative liabilities $ 92 $ — $ 92 $ — $ 102 (1) Variation margin pledged to, or received from, a Central Counterparty Clearing House to cover the prior days fair value of open positions is considered settlement of the derivative position for accounting purposes. Cash Flow Hedges of Interest Rate Risk The Company’s objectives in using interest rate derivatives are to add stability to interest expense and to manage its exposure to interest rate movements. Interest rate swaps designated as cash flow hedges involve the receipt of amounts subject to variability caused by changes in interest rates from a counterparty in exchange for the Company making fixed-rate payments over the life of the agreements without exchange of the underlying notional amount. Changes in the fair value of derivatives designated and that qualify as cash flow hedges are initially recorded in other comprehensive income and are subsequently reclassified into earnings in the period that the hedged transaction affects earnings. Interest rate swaps with notional amounts totaling $5.5 billion and $5.5 billion as of March 31, 2024 and December 31, 2023, were designated as cash flow hedges of certain FHLB borrowings. The following table presents the effect of the Company’s cash flow derivative instruments on AOCL: (in millions) For the three months ended March 31, 2024 For the Year Ended December 31, 2023 For the Three Months Ended March 31, 2023 Amount of gain (loss) recognized in AOCL $ 91 $ 9 $ (90) Amount of reclassified from AOCL to interest expense $ (23) $ (65) $ (6) Amounts reported in AOCL related to derivatives will be reclassified to interest expense as interest payments are made on the Company’s variable-rate borrowings. We will recognize $106 million lower interest expense over the next rolling twelve month period related to the reclassification. Derivatives not Designated as Hedging Instruments The following table presents the net gain (loss) recognized in income on derivatives not designated as hedging instruments, net of the impact of offsetting positions: (dollars in millions) Three Months Ended March 31, 2024 Three Months Ended December 31, 2023 Derivatives not designated as hedging instruments Location of Gain (Loss) Futures Net return on mortgage servicing rights $ 2 $ (2) Interest rate swaps and swaptions Net return on mortgage servicing rights (34) 49 Mortgage-backed securities forwards Net return on mortgage servicing rights (12) 10 Rate lock commitments and US Treasury futures Net gain on loan sales 22 (37) Interest rate swaps (1) Other non-interest income (3) (2) Total derivative (loss) gain $ (25) $ 18 (1) Includes customer-initiated commercial interest rate swaps.

Intangible Assets

Intangible Assets	3 Months Ended
	Mar. 31, 2024
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible Assets	Intangible Assets Finite-lived Intangible Assets At March 31, 2024, intangible assets consisted of the following: March 31, 2024 December 31, 2023 (in millions) Gross Carrying Amount Accumulated Amortization Net Carrying Value Gross Carrying Amount Accumulated Amortization Net Carrying Value Core deposit intangible $ 700 $ (143) $ 557 $ 700 $ (113) $ 587 Other intangible assets 56 (23) 33 56 (18) 38 Total other intangible assets $ 756 $ (166) $ 590 $ 756 $ (131) $ 625 As of March 31, 2024 the weighted average amortization period for core deposit intangible and other intangible assets is 10 years and 5.1 years, respectively. The estimated amortization expense of CDI and other intangible assets for the next five years is as follows: (in millions) Amortization Expense 2024 $ 97 2025 107 2026 94 2027 81 2028 67 Total $ 446

Fair Value Measures

Fair Value Measures	3 Months Ended
	Mar. 31, 2024
Fair Value Disclosures [Abstract]
Fair Value Measures	Fair Value Measures GAAP sets forth a definition of fair value, establishes a consistent framework for measuring fair value, and requires disclosure for each major asset and liability category measured at fair value on either a recurring or non-recurring basis. GAAP also clarifies that fair value is an “exit” price, representing the amount that would be received when selling an asset, or paid when transferring a liability, in an orderly transaction between market participants. Fair value is thus a market-based measurement that should be determined based on assumptions that market participants would use in pricing an asset or liability. As a basis for considering such assumptions, GAAP establishes a three-tier fair value hierarchy, which prioritizes the inputs used in measuring fair value as follows: • Level 1 – Inputs to the valuation methodology are quoted prices (unadjusted) for identical assets or liabilities in active markets. • Level 2 – Inputs to the valuation methodology include quoted prices for similar assets and liabilities in active markets, and inputs that are observable for the asset or liability, either directly or indirectly, for substantially the full term of the financial instrument. • Level 3 – Inputs to the valuation methodology are significant unobservable inputs that reflect a company’s own assumptions about the assumptions that market participants use in pricing an asset or liability. A financial instrument’s categorization within this valuation hierarchy is based upon the lowest level of input that is significant to the fair value measurement. The following tables present assets and liabilities that were measured at fair value on a recurring basis as of March 31, 2024 and December 31, 2023, and that were included in the Company’s Consolidated Statements of Condition at those dates: March 31, 2024 (in millions) Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs Netting Adjustments Total Fair Value Assets: Mortgage-related Debt Securities Available for Sale: GSE certificates $ — $ 1,180 $ — $ — $ 1,180 GSE CMOs $ — $ 5,780 $ — $ — $ 5,780 Private Label CMOs $ — $ 143 $ 33 $ — $ 176 Total mortgage-related debt securities $ — $ 7,103 $ 33 $ — $ 7,136 Other Debt Securities Available for Sale: U. S. Treasury obligations $ — $ — $ — $ — $ — GSE debentures — 1,440 — — 1,440 Asset-backed securities — 287 — — 287 Municipal bonds — 6 — — 6 Corporate bonds — 340 — — 340 Foreign notes — 35 — — 35 Capital trust notes — 92 — — 92 Total other debt securities — 2,200 — — 2,200 Total debt securities available for sale — 9,303 33 — 9,336 Equity securities: Mutual funds and common stock $ — $ 14 $ — $ — $ 14 Total equity securities $ — $ 14 $ — $ — $ 14 Total securities $ — $ 9,317 $ 33 $ — $ 9,350 Loans held-for-sale Residential first mortgage loans — 803 — — 803 Acquisition, development, and construction — 138 — — 138 Commercial and industrial loans — — 40 — — 40 Loans held-for-investment Residential first mortgage loans $ 8 8 Acquisition, development, and construction $ 58 58 Derivative assets Interest rate swaps and swaptions — 129 — — 129 Futures — 1 — — 1 Rate lock commitments (fallout-adjusted) — — 11 — 11 Mortgage-backed securities forwards — 7 — — 7 Mortgage servicing rights — — 1,092 — 1,092 Total assets at fair value $ — $ — $ 10,501 $ — $ 1,136 $ — $ 11,637 Derivative liabilities Mortgage-backed securities forwards $ — $ 9 $ — $ — $ 9 Interest rate swaps and swaptions $ — $ 61 $ — $ — $ 61 Rate lock commitments (fallout-adjusted) $ — $ — $ 3 $ — $ 3 Total liabilities at fair value $ — $ 70 $ 3 $ — $ 73 December 31, 2023 (in millions) Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs Netting Adjustments Total Fair Value Assets: Mortgage-related Debt Securities Available for Sale: GSE certificates $ — $ 1,221 $ — $ — $ 1,221 GSE CMOs — 5,162 — — 5,162 Private Label CMOs — 148 32 — 180 Total mortgage-related debt securities $ — $ 6,531 $ 32 $ — $ 6,563 Other Debt Securities Available for Sale: U. S. Treasury obligations $ 198 $ — $ — $ 198 GSE debentures — 1,609 — — 1,609 Asset-backed securities — 302 — — 302 Municipal bonds — 6 — — 6 Corporate bonds — 343 — — 343 Foreign notes — 34 — — 34 Capital trust notes — 90 — — 90 Total other debt securities $ 198 $ 2,384 $ — $ — $ 2,582 Total debt securities available for sale $ 198 $ 8,915 $ 32 $ — $ 9,145 Equity securities: Mutual funds and common stock — 14 — — 14 Total equity securities — 14 — — 14 Total securities $ 198 $ 8,929 $ 32 $ — $ 9,159 Loans held-for-sale Residential first mortgage loans $ — $ 770 $ — $ — $ 770 Acquisition, development, and construction 123 $ 123 Commercial and industrial loans 9 $ 9 Derivative assets Interest rate swaps and swaptions — 115 — — 115 Futures — — — — — Rate lock commitments (fallout-adjusted) — — 12 — 12 Mortgage-backed securities forwards — 11 — — 11 Mortgage servicing rights — — 1,111 — 1,111 Total assets at fair value $ 198 $ 9,957 $ 1,155 $ — $ 11,310 Derivative liabilities Mortgage-backed securities forwards — 32 — — 32 Futures 1 1 Interest rate swaps and swaptions — 59 — — 59 Rate lock commitments (fallout-adjusted) — — . 3 — 3 Total liabilities at fair value $ — $ 92 $ 3 $ — . $ 95 The Company reviews and updates the fair value hierarchy classifications for its assets on a quarterly basis. Changes from one quarter to the next that are related to the observability of inputs for a fair value measurement may result in a reclassification from one hierarchy level to another. A description of the methods and significant assumptions utilized in estimating the fair values of securities follows: Where quoted prices are available in an active market, securities are classified within Level 1 of the valuation hierarchy. Level 1 securities include highly liquid government securities and exchange-traded securities. If quoted market prices are not available for a specific security, then fair values are estimated by using pricing models. These pricing models primarily use market-based or independently sourced market parameters as inputs, including, but not limited to, yield curves, interest rates, equity or debt prices, and credit spreads. In addition to observable market information, models incorporate transaction details such as maturity and cash flow assumptions. Securities valued in this manner would generally be classified within Level 2 of the valuation hierarchy, and primarily include such instruments as mortgage-related and corporate debt securities. Periodically, the Company uses fair values supplied by independent pricing services to corroborate the fair values derived from the pricing models. In addition, the Company reviews the fair values supplied by independent pricing services, as well as their underlying pricing methodologies, for reasonableness. The Company challenges pricing service valuations that appear to be unusual or unexpected. While the Company believes its valuation methods are appropriate, and consistent with those of other market participants, the use of different methodologies or assumptions to determine the fair values of certain financial instruments could result in different estimates of fair values at a reporting date. Fair Value Measurements Using Significant Unobservable Inputs The following tables include a roll forward of the Consolidated Statements of Condition amounts (including the change in fair value) for financial instruments classified by us within Level 3 of the valuation hierarchy: (dollars in millions) Balance at Beginning of Year Total Gains / (Losses) Recorded in Earnings (1) Purchases / Originations Sales Settlement Transfers In (Out) Balance at End of Year Three Months Ended March 31, 2024 Assets Mortgage servicing rights (1) $ 1,111 $ 8 $ 42 $ (69) — — $ 1,092 Private Label CMOs — — — — — 33 33 Rate lock commitments (net) (1)(2) 9 (1) 12 (12) 8 Totals $ 1,120 $ 7 $ 54 $ (69) $ — $ 21 $ 1,133 (1) We utilized swaptions, futures, forward agency and loan sales and interest rate swaps to manage the risk associated with mortgage servicing rights and rate lock commitments. Gains and losses for individual lines do not reflect the effect of our risk management activities related to such Level 3 instruments. (2) Rate lock commitments are reported on a fallout-adjusted basis. Transfers out of Level 3 represent the settlement value of the commitments that are transferred to LHFS, which are classified as Level 2 assets. The following tables present the quantitative information about recurring Level 3 fair value financial instruments and the fair value measurements as of March 31, 2024: Fair Value Valuation Technique Unobservable Input (1) Range (Weighted Average) (dollars in millions) Assets Mortgage servicing rights $ 1,092 Discounted cash flows Option adjusted spread 4.9% - 21.7% 5.3% Constant prepayment rate —% - 10.0% 7.7% Weighted average cost to service per loan $65 - $90 $68 Private Label CMOs $ 33 Discounted cash flows Constant default rates 0.10% - 0.30% Weighted average life 7.96 - 11.50 Rate lock commitments (net) $ 8 Consensus pricing Origination pull-through rate 71.80% (1) Unobservable inputs were weighted by their relative fair value of the instruments. Assets Measured at Fair Value on a Non-Recurring Basis Certain assets are measured at fair value on a non-recurring basis. Such instruments are subject to fair value adjustments under certain circumstances (e.g., when there is evidence of impairment). The following tables present assets that were measured at fair value on a non-recurring basis as of March 31, 2024 and December 31, 2023, and that were included in the Company’s Consolidated Statements of Condition at those dates: Fair Value Measurements at March 31, 2024 Using (in millions) Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total Fair Value Certain impaired loans (2) $ 236 $ 236 Other assets (1) $ — $ — $ 50 $ 50 Total $ — $ — $ 286 $ 286 (1) Represents the fair value of repossessed assets, based on the appraised value of the collateral subsequent to its initial classification as repossessed assets and equity securities without readily determinable fair values. These equity securities are classified as Level 3 due to the infrequency of the observable prices and/or the restrictions on the shares. (2) Represents the fair value of impaired loans, based on the value of the collateral. Fair Value Measurements at December 31, 2023 Using (in millions) Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total Fair Value Certain impaired loans (2) $ — $ — $ 197 $ 197 Other assets (1) — — 50 50 Total $ — $ — $ 247 $ 247 (1) Represents the fair value of repossessed assets, based on the appraised value of the collateral subsequent to its initial classification as repossessed assets and equity securities without readily determinable fair values. These equity securities are classified as Level 3 due to the infrequency of the observable prices and/or the restrictions on the shares. (2) Represents the fair value of impaired loans, based on the value of the collateral. The fair values of collateral-dependent impaired loans are determined using various valuation techniques, including consideration of appraised values and other pertinent real estate and other market data. Other Fair Value Disclosures For the disclosure of fair value information about the Company’s on- and off-balance sheet financial instruments, when available, quoted market prices are used as the measure of fair value. In cases where quoted market prices are not available, fair values are based on present-value estimates or other valuation techniques. Such fair values are significantly affected by the assumptions used, the timing of future cash flows, and the discount rate. Because assumptions are inherently subjective in nature, estimated fair values cannot be substantiated by comparison to independent market quotes. Furthermore, in many cases, the estimated fair values provided would not necessarily be realized in an immediate sale or settlement of such instruments. The following tables summarize the carrying values, estimated fair values, and fair value measurement levels of financial instruments that were not carried at fair value on the Company’s Consolidated Statements of Condition at March 31, 2024 and December 31, 2023: March 31, 2024 Fair Value Measurement Using (in millions) Carrying Value Estimated Fair Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Financial Assets: Cash and cash equivalents $ 12,890 $ 12,890 $ 12,890 $ — $ — FHLB and FRB stock (1) 1,550 1,550 — 1,550 — Loans and leases held for investment, net 81,112 76,458 — — 76,458 Financial Liabilities: Deposits $ 74,858 $ 74,755 $ 48,095 (2) $ 26,660 (3) $ — Borrowed funds 26,727 26,651 — 26,651 — (1) Carrying value and estimated fair value are at cost. (2) Interest-bearing checking and money market accounts, savings accounts, and non-interest-bearing accounts. (3) Certificates of deposit. December 31, 2023 Fair Value Measurement Using (in millions) Carrying Value Estimated Fair Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Financial Assets: Cash and cash equivalents $ 11,475 $ 11,475 $ 11,475 $ — $ — FHLB and FRB stock (1) 1,392 1,392 — 1,392 — Loans and leases held for investment, net 83,627 79,333 — — 79,333 Financial Liabilities: Deposits $ 81,526 $ 81,247 $ 59,972 (2) $ 21,275 (3) $ — Borrowed funds 21,267 21,082 — 21,082 — (1) Carrying value and estimated fair value are at cost. (2) Interest-bearing checking and money market accounts, savings accounts, and non-interest-bearing accounts. (3) Certificates of deposit. The methods and significant assumptions used to estimate fair values for the Company’s financial instruments follow: Cash and Cash Equivalents Cash and cash equivalents include cash and due from banks and federal funds sold. The estimated fair values of cash and cash equivalents are assumed to equal their carrying values, as these financial instruments are either due on demand or have short-term maturities. Securities If quoted market prices are not available for a specific security, then fair values are estimated by using pricing models, quoted prices of securities with similar characteristics, or discounted cash flows. These pricing models primarily use market-based or independently sourced market parameters as inputs, including, but not limited to, yield curves, interest rates, equity or debt prices, and credit spreads. In addition to observable market information, pricing models also incorporate transaction details such as maturities and cash flow assumptions. Federal Home Loan Bank Stock Ownership in equity securities of the FHLB is generally restricted and there is no established liquid market for their resale. The carrying amount approximates the fair value. Loans and leases The Company discloses the fair value of loans measured at amortized cost using an exit price notion. The Company determined the fair value on substantially all of its loans for disclosure purposes, on an individual loan basis. The discount rates reflect current market rates for loans with similar terms to borrowers having similar credit quality on an exit price basis. For those loans where a discounted cash flow technique was not considered reliable, the Company used a quoted market price for each individual loan. MSRs The significant unobservable inputs used in the fair value measurement of the MSRs are option adjusted spreads, prepayment rates and cost to service. Significant increases (decreases) in all three assumptions in isolation result in a significantly lower (higher) fair value measurement. Weighted average life (in years) is used to determine the change in fair value of MSRs. For March 31, 2024, the weighted average life (in years) for the entire portfolio was 7.06. Rate lock commitments The significant unobservable input used in the fair value measurement of the rate lock commitments is the pull through rate. The pull through rate is a statistical analysis of our actual rate lock fallout history to determine the sensitivity of the residential mortgage loan pipeline compared to interest rate changes and other deterministic values. New market prices are applied based on updated loan characteristics and new fallout ratios (i.e. the inverse of the pull through rate) are applied accordingly. Significant increases (decreases) in the pull through rate in isolation result in a significantly higher (lower) fair value measurement. Deposits The fair values of deposit liabilities with no stated maturity (i.e., interest-bearing checking and money market accounts, savings accounts, and non-interest-bearing accounts) are equal to the carrying amounts payable on demand. The fair values of CDs represent contractual cash flows, discounted using interest rates currently offered on deposits with similar characteristics and remaining maturities. These estimated fair values do not include the intangible value of core deposit relationships, which comprise a portion of the Company’s deposit base. Borrowed Funds The estimated fair value of borrowed funds is based either on bid quotations received from securities dealers or the discounted value of contractual cash flows with interest rates currently in effect for borrowed funds with similar maturities and structures. Off-Balance Sheet Financial Instruments The fair values of commitments to extend credit and unadvanced lines of credit are estimated based on an analysis of the interest rates and fees currently charged to enter into similar transactions, considering the remaining terms of the commitments and the creditworthiness of the potential borrowers. The estimated fair values of such off-balance sheet financial instruments were insignificant at March 31, 2024 and December 31, 2023. Fair Value Option We elected the fair value option for certain items as discussed throughout the Notes to the Consolidated Financial Statements to more closely align the accounting method with the underlying economic exposure. Interest income on LHFS is accrued on the principal outstanding primarily using the "simple-interest" method. The following table reflects the change in fair value included in earnings of financial instruments for which the fair value option has been elected: For the Three Months ended March 31, (dollars in millions) 2024 2023 Assets Loans held-for-sale Net gain on loan sales $ 3 $ 28 The following table reflects the difference between the aggregate fair value and aggregate remaining contractual principal balance outstanding for assets and liabilities for which the fair value option has been elected: March 31, 2024 (dollars in millions) Unpaid Principal Balance Fair Value Fair Value Over / (Under) UPB Assets: Nonaccrual loans: Loans held-for-sale $ — $ — $ — Loans held-for-investment — — — Total non-accrual loans — — — Other performing loans: Loans held-for-sale 923 941 18 Loans held-for-investment 67 66 (1) Total other performing loans 990 1,007 17 Total loans: Loans held-for-sale 923 941 18 Loans held-for-investment 67 66 (1) Total loans $ 990 $ 1,007 $ 17 December 31, 2023 (dollars in millions) Unpaid Principal Balance Fair Value Fair Value Over / (Under) UPB Assets: Nonaccrual loans: Loans held-for-sale $ 2 $ 2 $ — Total non-accrual loans 2 2 — Other performing loans: Loans held-for-sale 869 894 25 Total other performing loans 869 894 25 Total loans: Loans held-for-sale 871 896 25 Total loans $ 871 $ 896 $ 25

Mezzanine and Stockholders Equi

Mezzanine and Stockholders Equity	3 Months Ended
	Mar. 31, 2024
Temporary Equity Disclosure [Abstract]
Mezzanine and Stockholders Equity	Accumulated Other Comprehensive Income The following table sets forth the components in accumulated other comprehensive income: (in millions) Three Months Ended March 31, 2024 Details about Accumulated Other Comprehensive Loss Amount Reclassified out of Accumulated Other Comprehensive Loss (1) Affected Line Item in the Consolidated Statements of Income and Comprehensive Income Unrealized gains on available-for-sale securities: $ — Net gain on securities — Income tax expense $ — Net gain on securities, net of tax Unrealized gains on cash flow hedges: $ 23 Interest expense (6) Income tax benefit $ 17 Net gain on cash flow hedges, net of tax Amortization of defined benefit pension plan items: Past service liability $ — Included in the computation of net periodic credit (2) Actuarial losses (1) Included in the computation of net periodic cost (2) (1) Total before tax — Income tax benefit $ (1) Amortization of defined benefit pension plan items, net of tax Total reclassifications for the period $ 16 (1) Amounts in parentheses indicate expense items. (2) See Note 12 - Pension and Other Post-Retirement Benefits for additional information. The following table summarizes the Company's preferred stock at March 31, 2024: Preferred Stock Series Amount Outstanding (in millions) Issued Date Shares Authorized Shares Issued Shares Outstanding (1) Par Value Liquidation Preference 6.375% Fixed-to-Floating Rate Perpetual Noncumulative Series A $ 503 March 17, 2017 5,000,000 515,000 515,000 $ 0.01 1,000 13.00% Fixed Rate Perpetual Noncumulative Convertible Series B $ 258 March 11, 2024 267,062 192,062 192,062 $ 0.01 2,000 13.00% Fixed Rate Perpetual Noncumulative Convertible Series C $ 337 March 11, 2024 523,369 256,307 249,556 $ 0.01 2,000 Non-Voting Common Equivalent Series D $ — N/A 315,000 0 0 $ 0.01 $ 0.0001 (1) Shares outstanding for Series C excludes 6,751 shares converted to common shares following issuance. Series A Preferred stock Each Series A preferred share represent 1/40th interest in a share of the Company’s Fixed-to-Floating Rate Series A Noncumulative Perpetual Preferred Stock, with a liquidation preference of $1.00 per share (equivalent to $25 per share). Dividends accrue on the shares at a fixed rate equal to 6.375 percent per annum until March 17, 2027, and a floating rate equal to three-month SOFR plus 408.26 basis points per annum beginning on March 17, 2027. Dividends will be payable in arrears on March 17, June 17, September 17, and December 17 of each year, which commenced on June 17, 2017. In the first quarter of 2024, we paid dividends on our Series A preferred stock of $15.94 per share. Series B Preferred Stock Each share of Series B Noncumulative Convertible Preferred Stock, par value $0.01 per share (the “Series B Preferred Stock”), is automatically convertible into 1,000 shares of our common stock (or one share of Series C Preferred Stock in limited circumstances) in the event of a transfer consistent with the rules and limitations of Regulation Y (a "Reg Y Transfer"). As of March 31, 2024, all the issued and outstanding shares of Series B Preferred Stock represented the right (on an as converted basis) to receive approximately 192 million shares of our common stock. Series B Preferred Stock shareholders do not have voting rights, except in limited circumstances. Series B Preferred Stock provides for quarterly non-cumulative cash dividends at an annual rate of 13 percent, if declared by the Board, until the receipt of the requisite shareholder approval of both (a) an amendment to the Amended and Restated Certificate of Incorporation of the Company to increase the number of authorized shares of our common stock from 900,000,000 to at least 1,700,000,000; and (b) the issuance of shares of our common stock in connection with the March 2024 capital raise pursuant to NYSE listing rules (the “Stockholder Approvals”). Until receipt of the Stockholder Approvals, each share of Series B Preferred Stock is entitled to a liquidation preference equal to $2,000 per share. Series C Preferred Stock Each share of Series C Noncumulative Convertible Preferred Stock, par value $0.01 per shares (“Series C Preferred Stock”), is automatically convertible into 1,000 shares of our common stock upon the occurrence of certain events (including receipt of the Stockholder Approvals). In addition, in connection with Reg Y Transfers, the Series C Preferred Stock is automatically convertible into 1,000 shares of our common stock. As of March 31, 2024, all the issued and outstanding shares of Series C Preferred Stock represented the right (on an as converted basis) to receive approximately 249.6 million shares of our common stock. Series C Preferred Stock shareholders do not have voting rights, except in limited circumstances. Series C Preferred Stock provides for quarterly non-cumulative cash dividends at an annual rate of 13 percent, if declared by the Board. Each share of Series C Preferred Stock is entitled to a liquidation preference equal to $2,000 per share. The Series B and C Preferred Stock is classified in mezzanine equity as it is redeemable for cash, contingent on an event that is not solely in the control of the Company. The Series B and C Preferred Stock is not remeasured because it is currently not probable that it will become redeemable. Warrants Warrants were issued to purchase shares of a new class of non-voting, common-equivalent preferred stock of the Company, par value $0.01 per share (the "Series D NVCE Stock") for $2,500 per share. The warrants are not exercisable until September 10, 2024 and expire 7 years after issuance. Each share of Series D NVCE Stock is convertible into 1,000 shares of our common stock (or, in certain limited circumstances, one share of Series C Preferred Stock) in a Reg Y Transfer. All shares of Series D NVCE Stock represent the right (on an as converted basis) to receive 315 million shares of our common stock for an exercise price of $2.50 per common share. The terms of the warrant allow net settlement in shares and will not be exercisable for 180 days after closing.

Pay vs Performance Disclosure

Pay vs Performance Disclosure - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Pay vs Performance Disclosure
Net (loss) income	$ (327)	$ 2,006

Insider Trading Arrangements

Insider Trading Arrangements	3 Months Ended
	Mar. 31, 2024
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false

Organization and Basis of Pre_2

Organization and Basis of Presentation (Policies)	3 Months Ended
	Mar. 31, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	The accompanying financial statements of the Company and other entities in which the Company has a controlling financial interest, have been prepared using GAAP for interim financial statements. The accompanying financial statements of the Company conform to U.S. generally accepted accounting principles and to general practices within the banking industry. The preparation of financial statements in conformity with GAAP requires the Company to make estimates and judgments that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the consolidated financial statements, and the reported amounts of revenues and expenses during the reporting period. Estimates are used in connection with the determination of the allowance for credit losses, mortgage servicing rights and the acquisition method of accounting.
Consolidation	All inter-company accounts and transactions are eliminated in consolidation. The Company currently has certain unconsolidated subsidiaries in the form of wholly-owned statutory business trusts, which were formed to issue guaranteed capital securities.
Adoption of New Accounting Standards	Adoption of New Accounting Standards Standard Description Effective Date ASU 2022-03, Fair Value Measurements (Topic 820): Fair Value Measurement of Equity Securities Subject to Contractual Sale Restrictions This ASU clarifies that a contractual restriction on the sale of an equity security should not be considered in measuring its fair value. In addition, the ASU requires specific disclosures related to equity securities that are subject to contractual sale restrictions. Adoption of this ASU did not have a material impact on the consolidated financial statements. ASU 2023-08, Intangibles—Goodwill and Other—Crypto Assets (Subtopic 350-60): Accounting for and Disclosure of Crypto Assets The amendments in this update require entities that hold certain crypto assets to measure such assets at fair value and recognize any changes in fair value in net income in each reporting period. Entities will also be required to present crypto assets measured at fair value separately from other intangible assets on the balance sheet and changes from the remeasurement of crypto assets separately from changes in the carrying amounts of other intangible assets in the income statement. Other disclosure items include the name, cost basis, fair value, and number of units for each significant crypto asset holding and the aggregate fair values and cost bases of crypto asset holdings that are not individually significant along with a rollforward of activity in the reporting period and disclosure of the method for determining the cost basis of the crypto assets. Adoption of this ASU did not have a material impact on the consolidated financial statements. ASU 2024-02, Codification Improvements—Amendments to Remove References to the Concepts Statements This Update contains amendments to the Codification that remove references to various Concepts Statements. In most instances, the references are extraneous and not required to understand or apply the guidance. In other instances, the references were used in prior Statements to provide guidance in certain topical areas. We early adopted this ASU which did not have a material impact to the Financial Statements.
Earnings per Common Share (Basic and Diluted)	Basic EPS is computed by dividing the net income available to common shareholders by the weighted average number of common shares outstanding during the period. Diluted EPS is computed using the same method as basic EPS, however, the computation reflects the potential dilution that would occur if outstanding in-the-money stock options were exercised and converted into common stock. Diluted earnings per share is the amount of earnings available to each common share outstanding during the reporting periods adjusted to include the effects of potentially dilutive common shares. Potentially dilutive common shares include warrants, convertible preferred stock, stock options and other stock-based awards. Potentially dilutive common shares are excluded from the computation of diluted earnings per share in the periods where the effect would be antidilutive.
Lessor Arrangements	Lessor Arrangements The Company is a lessor in the equipment finance business where it has executed direct financing leases (“lease finance receivables”). The Company produces lease finance receivables through a specialty finance subsidiary that participates in syndicated loans that are brought to them, and equipment loans and leases that are assigned to them, by a select group of nationally recognized sources, and are generally made to large corporate obligors, many of which are publicly traded, carry investment grade or near-investment grade ratings, and participate in stable industries nationwide. Lease finance receivables are carried at the aggregate of lease payments receivable plus the estimated residual value of the leased assets and any initial direct costs incurred to originate these leases, less unearned income, which is accreted to interest income over the lease term using the interest method. The standard leases are typically repayable on a level monthly basis with terms ranging from 24 to 120 months. At the end of the lease term, the lessee usually has the option to return the equipment, to renew the lease or purchase the equipment at the then fair market value (“FMV”) price. For leases with a FMV renewal/purchase option, the relevant residual value assumptions are based on the estimated value of the leased asset at the end of the lease term, including evaluation of key factors, such as, the estimated remaining useful life of the leased asset, its historical secondary market value including history of the lessee executing the FMV option, overall credit evaluation and return provisions. The Company acquires the leased asset at fair market value and provides funding to the respective lessee at acquisition cost, less any volume or trade discounts, as applicable. Therefore, there is generally no selling profit or loss to recognize or defer at inception of a lease.
Lessee Arrangements	Lessee Arrangements The Company has operating leases for corporate offices, branch locations, and certain equipment. These leases generally have terms of 20 years or less, determined based on the contractual maturity of the lease, and include periods covered by options to extend or terminate the lease when the Company is reasonably certain that it will exercise those options. For the vast majority of the Company’s leases, we are not reasonably certain we will exercise our options to renew to the end of all renewal option periods. The Company determines if an arrangement is a lease at inception. Operating leases are included in other assets and other liabilities in the Consolidated Statements of Condition. ROU assets represent the Company’s right to use an underlying asset for the lease term and lease liabilities represent the obligation to make lease payments arising from the lease. Operating lease ROU assets and liabilities are recognized at commencement date based on the present value of lease payments over the lease term. As the vast majority of the leases do not provide an implicit rate, the incremental borrowing rate (FHLB borrowing rate) is used based on the information available at commencement date in determining the present value of lease payments. The implicit rate is used when readily determinable. The operating lease ROU asset is measured at cost, which includes the initial measurement of the lease liability, prepaid rent and initial direct costs incurred by the Company, less incentives received.
Fair Value Measurements	GAAP sets forth a definition of fair value, establishes a consistent framework for measuring fair value, and requires disclosure for each major asset and liability category measured at fair value on either a recurring or non-recurring basis. GAAP also clarifies that fair value is an “exit” price, representing the amount that would be received when selling an asset, or paid when transferring a liability, in an orderly transaction between market participants. Fair value is thus a market-based measurement that should be determined based on assumptions that market participants would use in pricing an asset or liability. As a basis for considering such assumptions, GAAP establishes a three-tier fair value hierarchy, which prioritizes the inputs used in measuring fair value as follows: • Level 1 – Inputs to the valuation methodology are quoted prices (unadjusted) for identical assets or liabilities in active markets. • Level 2 – Inputs to the valuation methodology include quoted prices for similar assets and liabilities in active markets, and inputs that are observable for the asset or liability, either directly or indirectly, for substantially the full term of the financial instrument. • Level 3 – Inputs to the valuation methodology are significant unobservable inputs that reflect a company’s own assumptions about the assumptions that market participants use in pricing an asset or liability.
Business Combinations	Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date, reflecting assumptions that a market participant would use when pricing an asset or liability. In some cases, the estimation of fair values requires management to make estimates about discount rates, future expected cash flows, market conditions, and other future events that are highly subjective in nature and are subject to change. Described below are the methods used to determine the fair values of the significant assets acquired and liabilities assumed in the Signature Transaction. Cash and Cash Equivalents The estimated fair value of cash and cash equivalents approximates their stated face amounts, as these financial instruments are either due on demand or have short-term maturities. Loans and leases The fair value for loans was based on a discounted cash flow methodology that considered credit loss expectations, market interest rates and other market factors such as liquidity from the perspective of a market participant. Loans were grouped together according to similar characteristics and were treated in the aggregate when applying various valuation techniques. The probability of default, loss given default and prepayment assumptions were the key factors driving credit losses which were embedded into the estimated cash flows. These assumptions were informed by internal data on loan characteristics, historical loss experience, and current and forecasted economic conditions. The interest and liquidity component of the estimate was determined by discounting interest and principal cash flows through the expected life of each loan. The discount rates used for loans are based on current market rates for new originations of comparable loans and include adjustments for liquidity. The discount rates do not include a factor for credit losses as that has been included as a reduction to the estimated cash flows. Acquired loans were marked to fair value and adjusted for any PCD gross up as of the date of the Signature Transaction. Deposit Liabilities The fair value of deposit liabilities with no stated maturity (i.e., non-interest-bearing and interest-bearing checking accounts) is equal to the carrying amounts payable on demand. The fair value of certificates of deposit represents contractual cash flows, discounted using interest rates currently offered on deposits with similar characteristics and remaining maturities. Core Deposit Intangible Core deposit intangible (“CDI”) is a measure of the value of non-interest-bearing and interest-bearing checking accounts, savings accounts, and money market accounts that are acquired in a business combination. The fair value of the CDI was determined using a discounted cash flow methodology which considered discount rate, customer attrition rates, and other relevant market assumptions. This method estimated the fair value by discounting the present value of the expected cost savings attributable to the core deposit funding, relative to an alternative source of funding. The CDI relating to the Signature Transaction will be amortized over an estimated useful life of 10 years using the sum of years digits depreciation method. The Company evaluates such identifiable intangibles for impairment when an indication of impairment exists. CDI does not significantly impact our liquidity or capital ratios. PCD loans

Organization, Consolidation and

Organization, Consolidation and Presentation of Financial Statements (Tables)	3 Months Ended
	Mar. 31, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Schedule of Adoption of New Accounting Standards and Accounting Standards Issued But Not Yet Adopted	Adoption of New Accounting Standards Standard Description Effective Date ASU 2022-03, Fair Value Measurements (Topic 820): Fair Value Measurement of Equity Securities Subject to Contractual Sale Restrictions This ASU clarifies that a contractual restriction on the sale of an equity security should not be considered in measuring its fair value. In addition, the ASU requires specific disclosures related to equity securities that are subject to contractual sale restrictions. Adoption of this ASU did not have a material impact on the consolidated financial statements. ASU 2023-08, Intangibles—Goodwill and Other—Crypto Assets (Subtopic 350-60): Accounting for and Disclosure of Crypto Assets The amendments in this update require entities that hold certain crypto assets to measure such assets at fair value and recognize any changes in fair value in net income in each reporting period. Entities will also be required to present crypto assets measured at fair value separately from other intangible assets on the balance sheet and changes from the remeasurement of crypto assets separately from changes in the carrying amounts of other intangible assets in the income statement. Other disclosure items include the name, cost basis, fair value, and number of units for each significant crypto asset holding and the aggregate fair values and cost bases of crypto asset holdings that are not individually significant along with a rollforward of activity in the reporting period and disclosure of the method for determining the cost basis of the crypto assets. Adoption of this ASU did not have a material impact on the consolidated financial statements. ASU 2024-02, Codification Improvements—Amendments to Remove References to the Concepts Statements This Update contains amendments to the Codification that remove references to various Concepts Statements. In most instances, the references are extraneous and not required to understand or apply the guidance. In other instances, the references were used in prior Statements to provide guidance in certain topical areas. We early adopted this ASU which did not have a material impact to the Financial Statements.
Summary of Net Assets Acquired	A summary of the net assets acquired and the estimated fair value adjustments resulting in the bargain purchase gain is as follows: (in millions) March 20, 2023 Net assets acquired before fair value adjustments $ 2,973 Fair value adjustments: Loans (727) Core deposit and other intangibles 464 Certificates of deposit 27 Other net assets and liabilities 39 FDIC Equity Appreciation Instrument (85) Deferred tax liability (690) Bargain purchase gain on Signature Transaction, as initially reported $ 2,001 Adjustments related to items identified subsequent to the initial reporting period as of March 20, 2023: Measurement period adjustments, excluding taxes (134) Change in deferred tax liability 143 Bargain purchase gain on Signature Transaction, as adjusted $ 2,010 (in millions) As Initially Reported Measurement Period Adjustments As Adjusted Purchase Price consideration $ 85 $ 85 Fair value of assets acquired: Cash & cash equivalents 25,043 (142) 24,901 Loans held for sale 232 232 Loans held for investment: Commercial and industrial 10,102 (214) 9,888 Commercial real estate 1,942 (262) 1,680 Consumer and other 174 (1) 173 Total loans held for investment 12,218 (477) 11,741 CDI and other intangible assets 464 — 464 Other assets 679 (266) 413 Total assets acquired 38,636 (885) 37,751 Fair value of liabilities assumed: Deposits 33,568 (61) 33,507 Other liabilities 2,982 (833) 2,149 Total liabilities assumed 36,550 (894) 35,656 Fair value of net identifiable assets 2,086 9 2,095 Bargain purchase gain $ 2,001 $ 9 $ 2,010

Computation of Earnings per C_2

Computation of Earnings per Common Share (Tables)	3 Months Ended
	Mar. 31, 2024
Earnings Per Share [Abstract]
Computation of Basic and Diluted Earnings Per Share of Common Stock	The following table presents the Company’s computation of basic and diluted earnings per common share: Three Months Ended March 31, (in millions, except share and per share amounts) 2024 2023 Net income available to common stockholders $ (335) $ 1,998 Less: Dividends paid on and earnings allocated to participating securities — (21) Earnings applicable to common stock $ (335) $ 1,977 Weighted average common shares outstanding 740,047,777 686,911,555 Basic earnings per common share $ (0.45) $ 2.88 Earnings applicable to common stock $ (335) $ 1,977 Weighted average common shares outstanding 740,047,777 686,911,555 Potential dilutive common shares — 1,360,056 Total shares for diluted earnings per common share computation 740,047,777 688,271,611 Diluted earnings per common share and common share equivalents $ (0.45) $ 2.87

Business Combinations (Tables)

Business Combinations (Tables)	3 Months Ended
	Mar. 31, 2024
Business Combination and Asset Acquisition [Abstract]
Summary of Net Assets Acquired	A summary of the net assets acquired and the estimated fair value adjustments resulting in the bargain purchase gain is as follows: (in millions) March 20, 2023 Net assets acquired before fair value adjustments $ 2,973 Fair value adjustments: Loans (727) Core deposit and other intangibles 464 Certificates of deposit 27 Other net assets and liabilities 39 FDIC Equity Appreciation Instrument (85) Deferred tax liability (690) Bargain purchase gain on Signature Transaction, as initially reported $ 2,001 Adjustments related to items identified subsequent to the initial reporting period as of March 20, 2023: Measurement period adjustments, excluding taxes (134) Change in deferred tax liability 143 Bargain purchase gain on Signature Transaction, as adjusted $ 2,010 (in millions) As Initially Reported Measurement Period Adjustments As Adjusted Purchase Price consideration $ 85 $ 85 Fair value of assets acquired: Cash & cash equivalents 25,043 (142) 24,901 Loans held for sale 232 232 Loans held for investment: Commercial and industrial 10,102 (214) 9,888 Commercial real estate 1,942 (262) 1,680 Consumer and other 174 (1) 173 Total loans held for investment 12,218 (477) 11,741 CDI and other intangible assets 464 — 464 Other assets 679 (266) 413 Total assets acquired 38,636 (885) 37,751 Fair value of liabilities assumed: Deposits 33,568 (61) 33,507 Other liabilities 2,982 (833) 2,149 Total liabilities assumed 36,550 (894) 35,656 Fair value of net identifiable assets 2,086 9 2,095 Bargain purchase gain $ 2,001 $ 9 $ 2,010
Summary of Loans and Leases Purchased as Part of Acquisition	The following table provides a summary of loans and leases purchased as part of the Signature Transaction with credit deterioration and the associated credit loss reserve at acquisition: (in millions) Total Par value (UPB) $ 583 ACL at acquisition (13) Non-credit (discount) (76) Fair value $ 494

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Income (Tables)	3 Months Ended
	Mar. 31, 2024
Equity [Abstract]
Reclassification out of Accumulated Other Comprehensive Income	The following table sets forth the components in accumulated other comprehensive income: (in millions) Three Months Ended March 31, 2024 Details about Accumulated Other Comprehensive Loss Amount Reclassified out of Accumulated Other Comprehensive Loss (1) Affected Line Item in the Consolidated Statements of Income and Comprehensive Income Unrealized gains on available-for-sale securities: $ — Net gain on securities — Income tax expense $ — Net gain on securities, net of tax Unrealized gains on cash flow hedges: $ 23 Interest expense (6) Income tax benefit $ 17 Net gain on cash flow hedges, net of tax Amortization of defined benefit pension plan items: Past service liability $ — Included in the computation of net periodic credit (2) Actuarial losses (1) Included in the computation of net periodic cost (2) (1) Total before tax — Income tax benefit $ (1) Amortization of defined benefit pension plan items, net of tax Total reclassifications for the period $ 16 (1) Amounts in parentheses indicate expense items. (2)

Investment Securities (Tables)

Investment Securities (Tables)	3 Months Ended
	Mar. 31, 2024
Investments, Debt and Equity Securities [Abstract]
Schedule of Held-to-Maturity and Available-for-Sale Securities	The following tables summarize the Company’s portfolio of debt securities available for sale and equity investments with readily determinable fair values: March 31, 2024 (in millions) Amortized Cost (1) Gross Unrealized Gain Gross Unrealized Loss Fair Value Debt securities available-for-sale Mortgage-Related Debt Securities: GSE certificates $ 1,342 $ 1 $ 163 $ 1,180 GSE CMOs 6,167 25 412 5,780 Private Label CMOs 171 5 — 176 Total mortgage-related debt securities $ 7,680 $ 31 $ 575 $ 7,136 Other Debt Securities: U. S. Treasury obligations $ — $ — $ — $ — GSE debentures 1,752 — 312 1,440 Asset-backed securities (2) 291 — 4 287 Municipal bonds 6 — — 6 Corporate bonds 364 — 24 340 Foreign notes 35 — — 35 Capital trust notes 97 5 10 92 Total other debt securities $ 2,545 $ 5 $ 350 $ 2,200 Total debt securities available for sale $ 10,225 $ 36 $ 925 $ 9,336 Equity securities: Mutual funds $ 16 $ — $ 2 $ 14 Total equity securities $ 16 $ — $ 2 $ 14 Total securities (3) $ 10,241 $ 36 $ 927 $ 9,350 (1) The amortized cost of investment securities is reported net of allowance for credit losses of $1 million. (2) The underlying assets of the asset-backed securities are substantially guaranteed by the U.S. Government. (3) Excludes accrued interest receivable of $35 million included in other assets December 31, 2023 (in millions) Amortized Cost (1) Gross Unrealized Gain Gross Unrealized Loss Fair Value Debt securities available-for-sale Mortgage-Related Debt Securities: GSE certificates $ 1,366 $ 1 $ 146 $ 1,221 GSE CMOs 5,495 48 381 5,162 Private Label CMOs 174 7 1 180 Total mortgage-related debt securities $ 7,035 $ 56 $ 528 $ 6,563 Other Debt Securities: U. S. Treasury obligations $ 198 $ — $ — $ 198 GSE debentures 1,899 1 291 1,609 Asset-backed securities (2) 307 — 5 302 Municipal bonds 6 — — 6 Corporate bonds 365 — 22 343 Foreign Notes 35 — 1 34 Capital trust notes 97 5 12 90 Total other debt securities $ 2,907 $ 6 $ 331 $ 2,582 Total other securities available for sale $ 9,942 $ 62 $ 859 $ 9,145 Equity securities: Mutual funds $ 16 $ — $ 2 $ 14 Total equity securities $ 16 $ — $ 2 $ 14 Total securities (3) $ 9,958 $ 62 $ 861 $ 9,159 (1) The underlying assets of the asset-backed securities are substantially guaranteed by the U.S. Government. (2) other assets
Summary of Unrealized Loss Positions on Investment Securities Held-to-Maturity	The following table summarizes, by contractual maturity, the amortized cost of securities at March 31, 2024: Mortgage- Related Securities U.S. Government and GSE Obligations State, County, and Municipal Other Debt Securities (1) Fair Value ( in millions) Available-for-Sale Debt Securities: Due within one year $ 2 $ 250 $ — $ 50 $ 299 Due from one to five years 172 — — 304 455 Due from five to ten years 311 1,502 6 102 1,565 Due after ten years 7,195 — — 331 7,017 Total debt securities available for sale $ 7,680 $ 1,752 $ 6 $ 787 $ 9,336 (1)
Schedule of Amortized Cost and Estimated Fair Value of Securities by Contractual Maturity	The following table presents securities having a continuous unrealized loss position for less than twelve months and for twelve months or longer as of March 31, 2024: Less than Twelve Months Twelve Months or Longer Total (in millions) Fair Value Unrealized Loss Fair Value Unrealized Loss Fair Value Unrealized Loss Temporarily Impaired Securities: U. S. Treasury obligations $ — $ — $ — $ — $ — $ — U.S. Government agency and GSE obligations — — 1,441 311 1,441 311 GSE certificates 53 1 1,087 163 1,140 164 Private Label CMOs 15 — 3 — 18 — GSE CMOs 1,292 27 2,340 385 3,632 412 Asset-backed securities — — 207 4 207 4 Municipal bonds — — 6 — 6 — Corporate bonds — — 341 24 341 24 Foreign notes — — 10 — 10 — Capital trust notes — — 82 10 82 10 Equity securities — — 14 2 14 2 Total temporarily impaired securities $ 1,360 $ 28 $ 5,531 $ 899 $ 6,891 $ 927 The following table presents securities having a continuous unrealized loss position for less than twelve months and for twelve months or longer as of December 31, 2023: Less than Twelve Months Twelve Months or Longer Total (in millions) Fair Value Unrealized Loss Fair Value Unrealized Loss Fair Value Unrealized Loss Temporarily Impaired Securities: U. S. Treasury obligations $ — $ — $ — $ — $ — $ — U.S. Government agency and GSE obligations 181 1 1,362 290 1,543 291 GSE certificates 312 5 843 141 1,155 146 Private Label CMOs 29 1 — — 29 1 GSE CMOs 1,835 77 1,312 304 3,147 381 Asset-backed securities — — 228 5 228 5 Municipal bonds — — 6 — 6 — Corporate bonds — — 343 22 343 22 Foreign notes — — 9 1 9 1 Capital trust notes — — 81 12 81 12 Equity securities — — 14 2 14 2 Total temporarily impaired securities $ 2,357 $ 84 $ 4,198 $ 777 $ 6,555 $ 861

Loans and Leases (Tables)

Loans and Leases (Tables)	3 Months Ended
	Mar. 31, 2024
Receivables [Abstract]
Summary of Components	We report LHFI loans at their amortized cost, which includes the outstanding principal balance adjusted for any unamortized premiums, discounts, deferred fees and unamortized fair value adjustments for acquired loans: March 31, 2024 December 31, 2023 (dollars in millions) Amount Percent of Amount Percent of Loans and Leases Held for Investment: Mortgage Loans: Multi-family $ 36,859 44.8 % $ 37,265 44.0 % Commercial real estate 10,323 12.5 % 10,470 12.4 % One-to-four family first mortgage 5,807 7.1 % 6,061 7.2 % Acquisition, development, and construction 3,207 3.9 % 2,912 3.4 % Total mortgage loans held for investment (1) $ 56,196 68.3 % $ 56,708 67.0 % Other Loans: Commercial and industrial 21,428 26.0 % 22,065 26.1 % Lease financing, net of unearned income of $243 and $258, respectively 2,990 3.6 % 3,189 3.8 % Total commercial and industrial loans (2) 24,418 29.6 % 25,254 29.8 % Other 1,713 2.1 % 2,657 3.1 % Total other loans held for investment 26,131 31.7 % 27,911 33.0 % Total loans and leases held for investment (1) $ 82,327 100.0 % $ 84,619 100.0 % Allowance for credit losses on loans and leases (1,215) (992) Total loans and leases held for investment, net 81,112 83,627 Loans held for sale, at fair value 981 1,182 Total loans and leases, net $ 82,093 $ 84,809 (1) Excludes accrued interest receivable of $410 million and $410 million at March 31, 2024 and December 31, 2023, respectively, which is included in other assets in the Consolidated Statements of Condition. (2) Includes specialty finance loans and leases of $4.8 billion and $5.2 billion at March 31, 2024 and December 31, 2023, respectively.
Schedule of Quality of Loans Held for Investment	The following table presents information regarding the quality of the Company’s loans held for investment at March 31, 2024: (in millions) Loans 30-89 Days Past Due Non- Accrual Loans Total Past Due Loans Current Loans Total Loans Receivable Multi-family $ 103 $ 339 $ 442 $ 36,417 $ 36,859 Commercial real estate 9 264 273 10,050 10,323 One-to-four family first mortgage 26 98 124 5,683 5,807 Acquisition, development, and construction 6 3 9 3,198 3,207 Commercial and industrial (1) 60 73 133 24,285 24,418 Other 8 21 29 1,684 1,713 Total $ 212 $ 798 $ 1,010 $ 81,317 $ 82,327 (1) Includes lease financing receivables. The following table presents information regarding the quality of the Company’s loans held for investment at December 31, 2023: (in millions) Loans 30-89 Days Past Due Non- Accrual Loans Total Past Due Loans Current Loans (2) Total Loans Receivable Multi-family $ 121 $ 138 $ 259 $ 37,006 $ 37,265 Commercial real estate 28 128 156 10,314 10,470 One-to-four family first mortgage 40 95 135 5,926 6,061 Acquisition, development, and construction 2 2 4 2,908 2,912 Commercial and industrial (1) 37 43 80 25,174 25,254 Other 22 22 44 2,613 2,657 Total $ 250 $ 428 $ 678 $ 83,941 $ 84,619 (1)
Summary of Loans Held for Investment by Credit Quality Indicator	The following table summarizes the Company’s portfolio of loans held for investment by credit quality indicator at March 31, 2024: ` (in millions) Multi- Family Commercial Real Estate One-to- Four Family Acquisition, Development, and Construction Commercial and Industrial Other Total Loans (1) Credit Quality Indicator: Pass $ 32,209 $ 8,417 $ 4,985 $ 3,081 $ 23,816 $ 1,682 $ 74,190 Special mention 702 237 — 72 148 — 1,159 Substandard 3,948 1,669 822 54 454 31 6,978 Total $ 36,859 $ 10,323 $ 5,807 $ 3,207 $ 24,418 $ 1,713 $ 82,327 (1) Includes loans carried under the fair value option The following table summarizes the Company’s portfolio of loans held for investment by credit quality indicator at December 31, 2023: (in millions) Multi- Family Commercial Real Estate One-to- Four Family Acquisition, Development, and Construction Commercial and Industrial (2) Other Total Loans Credit Quality Indicator: Pass $ 34,170 $ 8,734 $ 5,328 $ 2,825 $ 24,683 $ 2,634 $ 78,374 Special mention 768 367 — 57 335 — 1,527 Substandard 2,327 1,369 733 30 236 23 4,718 Total $ 37,265 $ 10,470 $ 6,061 $ 2,912 $ 25,254 $ 2,657 $ 84,619 The following table presents, by credit quality indicator, loan class, and year of origination, the amortized cost basis of the Company’s loans and leases as of March 31, 2024: Vintage Year (in millions) 2024 2023 2022 2021 2020 Prior To Revolving Loans Revolving Loans Converted to Term Loans Total Pass $ 281 $ 3,425 $ 12,524 $ 9,987 $ 8,571 $ 11,760 $ 2,128 $ 15 $ 48,691 Special Mention 4 — 139 85 74 631 78 — 1,011 Substandard — 65 401 351 436 5,235 6 — 6,494 Total mortgage loans $ 285 $ 3,490 $ 13,064 $ 10,423 $ 9,081 $ 17,626 $ 2,212 $ 15 $ 56,196 Current-period gross write-offs — — — (6) (3) (66) — — (75) Pass $ 5,662 $ 3,548 $ 3,326 $ 1,401 $ 896 $ 1,599 $ 8,901 $ 166 $ 25,499 Special Mention 18 4 48 17 13 5 43 — 148 Substandard 10 13 189 42 40 79 110 1 484 Total other loans $ 5,690 $ 3,565 $ 3,563 $ 1,460 $ 949 $ 1,683 $ 9,054 $ 167 $ 26,131 Current-period gross write-offs $ — $ (1) $ (8) $ (5) $ — $ (2) $ — $ — $ (16) Total $ 5,975 $ 7,055 $ 16,627 $ 11,883 $ 10,030 $ 19,309 $ 11,266 $ 182 $ 82,327
Summary of Collateral	The following table summarizes the extent to which collateral secures the Company’s collateral-dependent loans held for investment by collateral type as of March 31, 2024: Collateral Type (in millions) Real Property Other Multi-family $ 457 $ — Commercial real estate 412 — One-to-four family first mortgage 107 — Acquisition, development, and construction 5 — Commercial and industrial — 78 Other — — Total collateral-dependent loans held for investment $ 981 $ 78
Summary of Modifications to Borrowers Experiencing Financial Difficulty and Performance of Loans Modified in Last 12 Months, and TDRs	The following table summarizes the amortized cost basis of loans modified during the reporting period to borrowers experiencing financial difficulty, disaggregated by class of financing receivable and type of modification: Amortized Cost (dollars in millions) Interest Rate Reduction Term Extension Combination - Interest Rate Reduction & Term Extension Total Percent of Total Loan class Three months ended March 31, 2024 Multi-family $ 8 $ — $ — $ 8 0.08 % Commercial real estate 2 — — 2 0.02 % One-to-four family first mortgage — 1 1 2 0.03 % Commercial and Industrial — 13 — 13 0.06 % Other Consumer — — 1 1 0.06 % Total $ 10 $ 14 $ 2 $ 26 Three Months Ended March 31, 2023 Multi-family $ — $ — $ — $ — — % Commercial real estate 44 — — 44 0.42 % One-to-four family first mortgage — 1 1 2 0.03 % Commercial and Industrial — — — — — % Other Consumer $ — $ — $ — — — % Total $ 44 $ 1 $ 1 $ 46 The following table describes the financial effect of the modification made to borrowers experiencing financial difficulty: Interest Rate Reduction Term Extension Weighted-average contractual interest rate From To Weighted-average Term (in years) Three months ended March 31, 2024 Multi-family 8.13 % 6.95 % Commercial real estate 8.08 % 6.00 % One-to-four family first mortgage 4.66 % 3.76 % 15.3 Commercial and industrial 6.78 % 6.50 % 0.3 Other Consumer 11.01 % 4.76 % 1.8 Three Months Ended March 31, 2023 Multi-family — % — % Commercial real estate 10.50 % 4.00 % One-to-four family first mortgage 4.84 % 3.97 % 12.7 Commercial and industrial — % — % Other Consumer — % — % March 31, 2024 (dollars in millions) Current 30 - 89 Past Due 90+ Past Due Total Multi-family $ 8 $ — $ — 8 Commercial real estate 2 — — 2 One-to-four family first mortgage $ 2 $ — $ 8 $ 10 Commercial and industrial 12 2 — 14 Other Consumer 1 — — 1 Total $ 25 $ 2 $ 8 $ 35 March 31, 2023 (dollars in millions) Current 30 - 89 Past Due 90+ Past Due Total One-to-four family first mortgage $ — $ — $ 3 $ 3 Commercial and industrial 44 — — 44 Total $ 44 $ — $ 3 $ 47

Allowance for Credit Losses o_2

Allowance for Credit Losses on Loans and Leases (Tables)	3 Months Ended
	Mar. 31, 2024
Credit Loss [Abstract]
Schedule of Activity in the Allowance for Loan and Lease Losses	The following table summarizes activity in the allowance for credit losses for the periods indicated: For the Three Months Ended March 31, 2024 2023 (in millions) Mortgage Other Total Mortgage Other Total Balance, beginning of period $ 756 $ 236 $ 992 $ 290 $ 103 $ 393 Adjustment for Purchased PCD Loans — — 13 13 Charge-offs (75) (16) (91) (2) (3) (5) Recoveries 1 9 10 — 5 5 Provision for (recovery of) credit losses on loans and leases 311 (7) 304 (5) 149 144 Balance, end of period $ 993 $ 222 $ 1,215 $ 283 $ 267 $ 550
Schedule of Additional Information about Nonaccrual Loans	The following table presents additional information about the Company’s nonaccrual loans at March 31, 2024: (in millions) Recorded Investment Related Allowance Interest Income Recognized Nonaccrual loans with no related allowance: Multi-family $ 334 $ — $ — Commercial real estate 188 — 3 One-to-four family first mortgage 89 — — Acquisition, development, and construction — — — Other (includes C&I) 45 — — Total nonaccrual loans with no related allowance $ 656 $ — $ 3 Nonaccrual loans with an allowance recorded: Multi-family $ 5 $ 1 $ — Commercial real estate 76 17 — One-to-four family first mortgage 9 — — Acquisition, development, and construction 3 2 — Other (includes C&I) 49 28 — Total nonaccrual loans with an allowance recorded $ 142 $ 48 $ — Total nonaccrual loans: Multi-family $ 339 $ 1 $ — Commercial real estate 264 17 3 One-to-four family first mortgage 98 — — Acquisition, development, and construction 3 2 — Other (includes C&I) 94 28 — Total nonaccrual loans $ 798 $ 48 $ 3 The following table presents additional information about the Company’s nonaccrual loans at December 31, 2023: (in millions) Recorded Investment Related Allowance Interest Income Recognized Nonaccrual loans with no related allowance: Multi-family $ 134 $ — $ 5 Commercial real estate 53 — 2 One-to-four family first mortgage 85 — — Other (includes C&I) 22 — — Total nonaccrual loans with no related allowance $ 294 $ — $ 7 Nonaccrual loans with an allowance recorded: Multi-family 4 — — Commercial real estate $ 75 $ 17 $ 3 One-to-four family first mortgage 11 2 — Other (includes C&I) 44 28 — Total nonaccrual loans with an allowance recorded $ 134 $ 47 $ 3 Total nonaccrual loans: Multi-family $ 138 $ — $ 5 Commercial real estate 128 17 5 One-to-four family first mortgage 96 2 — Other (includes C&I) 66 28 — Total nonaccrual loans $ 428 $ 47 $ 10

Leases (Tables)

Leases (Tables)	3 Months Ended
	Mar. 31, 2024
Leases [Abstract]
Components of Lease Income	The components of lease income were as follows: Three Months Ended, (in millions) March 31, 2024 March 31, 2023 Interest income on lease financing (1) $ 38 $ 20 (1)
Components of Net Investment in Direct Financing Leases	The components of net investment in direct financing leases, including the carrying amount of the lease receivables, as well as the unguaranteed residual asset were as follows: (in millions) March 31, 2024 December 31, 2023 Net investment in the lease - lease payments receivable $ 2,960 $ 3,187 Net investment in the lease - unguaranteed residual assets 329 321 Total lease payments $ 3,289 $ 3,508
Maturity Analysis of Undiscounted Lease Receivables	The following table presents the remaining maturity analysis of the undiscounted lease receivables, as well as the reconciliation to the total amount of receivables recognized in the Consolidated Statements of Condition: (in millions) March 31, 2024 2024 $ 410 2025 565 2026 837 2027 509 2028 296 Thereafter 672 Total lease payments $ 3,289 Plus: deferred origination costs 14 Less: unearned income (243) Less: purchase accounting adjustment $ (70) Total lease finance receivables, net $ 2,990
Lease Cost Information	The components of lease expense were as follows: Three Months Ended, (in millions) March 31, 2024 March 31, 2023 Operating lease cost $ 18 $ 11 Total lease cost $ 18 $ 11 Supplemental cash flow information related to the leases for the following periods: Three Months Ended, (in millions) March 31, 2024 March 31, 2023 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 18 $ 10
Supplemental Balance Sheet Information	Supplemental balance sheet information related to the leases for the following periods: (in millions, except lease term and discount rate) March 31, 2024 December 31, 2023 Operating Leases: Operating lease right-of-use assets (1) $ 415 $ 426 Operating lease liabilities (2) $ 437 $ 446 Weighted average remaining lease term 10.9 years 11.2 years Weighted average discount rate % 4.70 % 4.71 % (1) Included in Other assets in the Consolidated Statements of Condition. (2) Included in Other liabilities in the Consolidated Statements of Condition.
Schedule of Minimum Contractual Lease Obligations	(in millions) March 31, 2024 Maturities of lease liabilities: 2024 $ 54 2025 67 2026 59 2027 53 2028 46 Thereafter 290 Total lease payments $ 569 Less: imputed interest $ (132) Total present value of lease liabilities $ 437

Mortgage Servicing Rights (Tabl

Mortgage Servicing Rights (Tables)	3 Months Ended
	Mar. 31, 2024
Transfers and Servicing [Abstract]
Schedule of Changes in the Fair Value of Residential First Mortgage MSRs	Changes in the fair value of residential first mortgage MSRs were as follows: Three Months Ended, (in millions) March 31, 2024 March 31, 2023 Balance at beginning of period $ 1,111 $ 1,033 Additions from loans sold with servicing retained 42 38 Reductions from sales (69) — Decrease in MSR fair value due to pay-offs, pay-downs, run-off, model changes, and other (1) (26) (18) Changes in estimates of fair value due to interest rate risk (1) (2) 34 (19) Fair value of MSRs at end of period $ 1,092 $ 1,034 (1) Changes in fair value are included within net return on mortgage servicing rights on the Consolidated Statements of Income and Comprehensive Income. (2) Represents estimated MSR value change resulting primarily from market-driven changes which we manage through the use of derivatives.
Summary of Adverse Changes to Weighted-Average Assumptions on the Fair Value of Servicing Rights	The following table summarizes the hypothetical resulting fair value of servicing rights using adverse changes of 10 percent and 20 percent to the weighted average of certain significant assumptions used in valuing these assets: March 31, 2024 Fair Value (dollars in millions) Actual 10% adverse change 20% adverse change Option adjusted spread 5.3 % $ 1,072 $ 1,053 Constant prepayment rate 7.7 % 1,054 1,020 Weighted average cost to service per loan $ 68 $ 1,081 $ 1,071 December 31, 2023 Fair Value (dollars in millions) Actual 10% adverse change 20% adverse change Option adjusted spread 5.4 % $ 1,091 $ 1,072 Constant prepayment rate 7.9 % 1,073 1,040 Weighted average cost to service per loan $ 69 $ 1,100 $ 1,090
Summary of Income and Fees	The following table summarizes income and fees associated with owned MSRs: Three Months Ended, (in millions) March 31, 2024 March 31, 2023 Net return on mortgage servicing rights Servicing fees, ancillary income and late fees (1) $ 58 $ 56 Decrease in MSR fair value due to pay-offs, pay-downs, run-off, model changes and other (26) (18) Changes in fair value due to interest rate risk 34 (19) Gain on MSR derivatives (2) (44) 3 Net transaction costs (1) (1) Total return (loss) included in net return on mortgage servicing rights $ 21 $ 21 (1) Servicing fees are recorded on an accrual basis. Ancillary income and late fees are recorded on a cash basis. (2) Changes in the derivatives utilized as economic hedges to offset changes in fair value of the MSRs. Three Months Ended, (in millions) March 31, 2024 March 31, 2023 Loan administration income on mortgage loans subserviced Servicing fees, ancillary income and late fees (1) $ 37 $ 36 Charges on subserviced custodial balances (2) (36) (29) Other servicing charges 1 (1) Total income (loss) on mortgage loans subserviced, included in loan administration income $ 2 $ 6 (1) Servicing fees are recorded on an accrual basis. Ancillary income and late fees are recorded on a cash basis. (2) Charges on subserviced custodial balances represent interest due to MSR owner.

Borrowed Funds (Tables)

Borrowed Funds (Tables)	3 Months Ended
	Mar. 31, 2024
Debt Disclosure [Abstract]
Schedule of Debt	The following table summarizes the Company’s borrowed funds: (in millions) March 31, 2024 December 31, 2023 Wholesale borrowings: FHLB advances $ 22,750 $ 19,250 FRB term funding 1,000 1,000 Repurchase agreements 1,958 0 Total wholesale borrowings $ 25,708 $ 20,250 Junior subordinated debentures 580 579 Subordinated notes 439 438 Total borrowed funds $ 26,727 $ 21,267
Schedule of Federal Home Loan Bank, Advances, by Branch of FHLB Bank	The contractual maturities and the next call dates of FHLB advances outstanding at March 31, 2024 were as follows: Contractual Maturity Earlier of Contractual Maturity or Next Call Date (dollars in millions) Year Amount Weighted Average Interest Rate (1) Amount Weighted Average Interest Rate (1) 2024 8,100 4.90 8,600 4.82 2025 3,500 5.68 3,750 5.54 2026 4,000 5.80 4,000 5.80 2027 4,000 5.16 4,000 5.16 2028 2,400 5.62 2,400 5.62 2032 750 3.54 — — Total FHLB advances $ 22,750 $ 22,750 (1) Does not included the effect interest rate swap agreements.
Schedule of Subordinated Borrowing	The following table presents contractual terms of the junior subordinated debentures outstanding at March 31, 2024: Issuer Interest Rate of Capital Securities and Debentures Junior Subordinated Debentures Amount Outstanding (3) Capital Securities Amount Outstanding Date of Original Issue Stated Maturity (dollars in millions) New York Community Capital Trust V (BONUSES Units) (1) 6.00 % $ 147 $ 141 November 04, 2002 November 01, 2051 New York Community Capital Trust X (2) 7.19 % 124 120 December 14, 2006 December 15, 2036 PennFed Capital Trust III (2) 8.84 % 31 30 June 02, 2003 June 15, 2033 New York Community Capital Trust XI (2) 7.21 % 59 58 April 16, 2007 June 30, 2037 Flagstar Statutory Trust II (2) 8.82 % 26 25 December 26, 2002 December 26, 2032 Flagstar Statutory Trust III (2) 8.83 % 26 25 February 19, 2003 April 7, 2033 Flagstar Statutory Trust IV (2) 8.81 % 26 25 March 19, 2003 March 19, 2033 Flagstar Statutory Trust V (2) 7.58 % 26 25 December 29, 2004 January 07, 2035 Flagstar Statutory Trust VI (2) 7.58 % 26 25 March 30, 2005 April 7, 2035 Flagstar Statutory Trust VII (2) 7.34 % 51 50 March 29, 2005 June 15, 2035 Flagstar Statutory Trust VIII (2) 7.08 % 26 25 September 22, 2005 October 7, 2035 Flagstar Statutory Trust IX (2) 7.04 % 26 25 June 28, 2007 September 15, 2037 Flagstar Statutory Trust X (2) 8.09 % 15 15 August 31, 2007 September 15, 2037 Total junior subordinated debentures (3) $ 609 $ 589 (1) Callable subject to certain conditions as described in the prospectus filed with the SEC on November 4, 2002. (2) Callable at any time. (3) Excludes Flagstar Acquisition fair value adjustments o f $30 million. The Company had $439 million in subordinated notes outstanding at March 31, 2024, and $438 million outstanding at December 31, 2023. All of the subordinated notes include a fixed rate of interest for a contractual period of time and then are floating thereafter as summarized in the table and information below . Date of Original Issue Stated Maturity Interest Rate at March 31, 2024 Original Issue Amount (1) November 6, 2018 November 6, 2028 8.332% $ 300 (2) October 28, 2020 November 1, 2030 4.125% $ 150 (1) From and including the date of original issuance to, but excluding November 6, 2023, the Notes bore interest at an initial rate of 5.90% per annum payable semi-annually. From and including November 6, 2023 to but excluding the maturity date, the interest rate will reset quarterly to an annual interest rate equal to the then-current three-month SOFR rate plus 304.16 basis points payable quarterly. (2)

Pension and Other Post-Retire_2

Pension and Other Post-Retirement Benefits (Tables)	3 Months Ended
	Mar. 31, 2024
Retirement Benefits [Abstract]
Schedule of Net Benefit Costs	The following table sets forth certain disclosures for the Company’s pension and post-retirement plans for the periods indicated: Three Months Ended March 31, 2024 2023 (in millions) Pension Benefits Post- Retirement Benefits (2) Pension Benefits Post- Retirement Benefits Components of net periodic pension expense (credit): (1) Interest cost $ 1 $ — $ 1 $ — Expected return on plan assets (4) — (4) — Amortization of net actuarial loss 1 — 2 — Net periodic (credit) expense $ (2) $ — $ (1) $ — (1) Amounts are included in General and administrative expense on the Consolidated Statements of Income and Comprehensive Income. (2) Post-retirement benefits balances round to zero.

Stock-Related Benefits Plans (T

Stock-Related Benefits Plans (Tables)	3 Months Ended
	Mar. 31, 2024
Share-Based Payment Arrangement [Abstract]
Summary of Restricted Stock Activity	The following table provides a summary of restricted stock award activity: Three Months Ended March 31, 2024 Number of Shares Weighted Average Grant Date Fair Value Unvested at beginning of year 15,173,941 $ 10.49 Granted 1,971,715 3.98 Vested (2,269,230) 10.84 Forfeited (775,917) 10.19 Unvested at end of period 14,100,509 $ 9.54
Summary of Performance-Based Restricted Stock Activity	The following table provides a summary of activity with regard to Performance-Based Restricted Stock Units ("PSUs") in the three months ended March 31, 2024: Number of Weighted Performance Expected Outstanding at beginning of year 1,218,288 $ 9.95 Granted 0 — Released 0 — Forfeited (753,636) 10.31 Outstanding at end of period 464,652 9.36 January 1, 2022 - December 31, 2025 March 31, 2025 - 2026
Share-Based Payment Arrangement, Option, Activity	The following table summarizes stock options activity for the period indicated: (in thousands, except per share data) Three Months Ended March 31, 2024 Stock Options Number of Options Weighted- Average Exercise Price per Share Outstanding as of January 1 $ — $ — Granted 19,000 2.31 Vested — — Forfeited — — Unvested at end of period 19,000 $ 2.31 Exercisable at end of period —
Share-Based Payment Arrangement, Option, Exercise Price Range	The following table summarizes outstanding and exercisable stock options by exercise price per share at March 31, 2024 (1) : (in thousands, except per share data) Three Months Ended March 31, 2024 Stock Options Number of Options Weighted- Average Exercise Price per Share Weighted- $2.00 15,000 $ 2.00 10 $3.46 4,000 3.46 10 All stock options 19,000 2.31 10

Derivative and Hedging Activi_2

Derivative and Hedging Activities (Tables)	3 Months Ended
	Mar. 31, 2024
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Derivative Financial Instruments	The following tables set forth information regarding the Company’s derivative financial instruments: March 31, 2024 Fair Value (in millions) Notional Amount Other Assets Other Liabilities Expiration Dates Derivatives designated as cash flow hedging instruments: Interest rate swaps on FHLB advances $ 5,500 $ 26 $ — 2025-2028 Derivatives designated as fair value hedging instruments: Interest rate swaps on multi-family loans held for investment $ 2,000 $ — $ — 2025-2027 Derivatives not designated as hedging instruments: Assets Futures $ 1,890 $ 1 $ — 2024 Mortgage-backed securities forwards 1,468 7 — 2024 Rate lock commitments 1,847 11 — 2024 Interest rate swaps and swaptions 5,745 103 — 2024-2041 Liabilities Mortgage-backed securities forwards $ 1,375 $ — $ 9 2024 Rate lock commitments 225 — 3 2024 Interest rate swaps and swaptions 2,833 — 61 2024-2054 December 31, 2023 Fair Value (in millions) Notional Amount Other Assets Other Liabilities Expiration Date Derivatives designated as cash flow hedging instruments: Interest rate swaps on FHLB advances $ 5,500 $ — $ 2 2025-2028 Derivatives designated as fair value hedging instruments: Interest rate swaps on multi-family loans held for investment $ 2,000 — 1 2025-2027 Derivatives not designated as hedging instruments: Assets Mortgage-backed securities forwards 1,012 11 — 2024 Rate lock commitments 1,490 12 — 2024 Interest rate swaps and swaptions 5,431 115 — 2024-2041 Liabilities Futures 2,235 — 1 2024 Mortgage-backed securities forwards 1,048 — 32 2024 Rate lock commitments 77 — 3 2024 Interest rate swaps and swaptions 2,720 — 59 2024-2054
Schedule of Derivatives Subject to a Master Netting Arrangement	The following table presents the derivatives subject to a master netting agreement, including the cash pledged as collateral: March 31, 2024 Gross Amounts Not Offset in the Statements of Condition (in millions) Gross Amount Gross Amounts Netted in the Statements of Condition Net Amount Presented in the Statements of Condition Financial Instruments Cash Collateral Pledged (Received) Derivatives designated hedging instruments: Interest rate swaps on FHLB advances $ 26 $ — $ 26 $ — $ 90 Interest rate swaps on multi-family loans held for investment (1) $ — $ — $ — $ — $ 33 Derivatives not designated as hedging instruments: Assets Mortgage-backed securities forwards $ 7 $ — $ 7 $ — $ — Interest rate swaptions 103 — 103 — 3 Futures 1 — 1 — 1 Total derivative assets $ 111 $ — $ 111 $ — $ 4 Liabilities Mortgage-backed securities forwards 9 — 9 — 8 Interest rate swaps (1) 61 — 61 — 49 Total derivative liabilities $ 70 $ — $ 70 $ — $ 57 (1) Variation margin pledged to, or received from, a Central Counterparty Clearing House to cover the prior days fair value of open positions is considered settlement of the derivative position for accounting purposes. The following table presents the derivatives subject to a master netting agreement, including the cash pledged as collateral: December 31, 2023 Gross Amounts Not Offset in the Statements of Condition (in millions) Gross Amount Gross Amounts Netted in the Statements of Condition Net Amount Presented in the Statements of Condition Financial Instruments Cash Collateral Pledged (Received) Derivatives designated hedging instruments: Interest rate swaps on FHLB advances $ 2 $ — $ 2 $ — $ 75 Interest rate swaps on multi-family loans held for investment(1) 1 — 1 — 27 Derivatives not designated as hedging instruments: Assets Mortgage-backed securities forwards $ 11 $ — $ 11 $ — $ (1) Interest rate swaptions 115 — 115 — (34) Futures — — — — Total derivative assets $ 126 $ — $ 126 $ — $ (35) Liabilities Futures $ 1 $ — $ 1 $ 3 Mortgage-backed securities forwards 32 — 32 — 57 Interest rate swaps (1) 59 — 59 — 42 Total derivative liabilities $ 92 $ — $ 92 $ — $ 102 (1) Variation margin pledged to, or received from, a Central Counterparty Clearing House to cover the prior days fair value of open positions is considered settlement of the derivative position for accounting purposes.
Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss)	The following table presents the effect of the Company’s cash flow derivative instruments on AOCL: (in millions) For the three months ended March 31, 2024 For the Year Ended December 31, 2023 For the Three Months Ended March 31, 2023 Amount of gain (loss) recognized in AOCL $ 91 $ 9 $ (90) Amount of reclassified from AOCL to interest expense $ (23) $ (65) $ (6)
Schedule of Net Gain (Loss) Recognized in Income on Derivative Instruments	The following table presents the net gain (loss) recognized in income on derivatives not designated as hedging instruments, net of the impact of offsetting positions: (dollars in millions) Three Months Ended March 31, 2024 Three Months Ended December 31, 2023 Derivatives not designated as hedging instruments Location of Gain (Loss) Futures Net return on mortgage servicing rights $ 2 $ (2) Interest rate swaps and swaptions Net return on mortgage servicing rights (34) 49 Mortgage-backed securities forwards Net return on mortgage servicing rights (12) 10 Rate lock commitments and US Treasury futures Net gain on loan sales 22 (37) Interest rate swaps (1) Other non-interest income (3) (2) Total derivative (loss) gain $ (25) $ 18 (1) Includes customer-initiated commercial interest rate swaps.

Intangible Assets (Tables)

Intangible Assets (Tables)	3 Months Ended
	Mar. 31, 2024
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Finite-Lived Intangible Assets	At March 31, 2024, intangible assets consisted of the following: March 31, 2024 December 31, 2023 (in millions) Gross Carrying Amount Accumulated Amortization Net Carrying Value Gross Carrying Amount Accumulated Amortization Net Carrying Value Core deposit intangible $ 700 $ (143) $ 557 $ 700 $ (113) $ 587 Other intangible assets 56 (23) 33 56 (18) 38 Total other intangible assets $ 756 $ (166) $ 590 $ 756 $ (131) $ 625
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense	The estimated amortization expense of CDI and other intangible assets for the next five years is as follows: (in millions) Amortization Expense 2024 $ 97 2025 107 2026 94 2027 81 2028 67 Total $ 446

Fair Value Measures (Tables)

Fair Value Measures (Tables)	3 Months Ended
	Mar. 31, 2024
Fair Value Disclosures [Abstract]
Financial Instruments Carried at Fair Value	The following tables present assets and liabilities that were measured at fair value on a recurring basis as of March 31, 2024 and December 31, 2023, and that were included in the Company’s Consolidated Statements of Condition at those dates: March 31, 2024 (in millions) Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs Netting Adjustments Total Fair Value Assets: Mortgage-related Debt Securities Available for Sale: GSE certificates $ — $ 1,180 $ — $ — $ 1,180 GSE CMOs $ — $ 5,780 $ — $ — $ 5,780 Private Label CMOs $ — $ 143 $ 33 $ — $ 176 Total mortgage-related debt securities $ — $ 7,103 $ 33 $ — $ 7,136 Other Debt Securities Available for Sale: U. S. Treasury obligations $ — $ — $ — $ — $ — GSE debentures — 1,440 — — 1,440 Asset-backed securities — 287 — — 287 Municipal bonds — 6 — — 6 Corporate bonds — 340 — — 340 Foreign notes — 35 — — 35 Capital trust notes — 92 — — 92 Total other debt securities — 2,200 — — 2,200 Total debt securities available for sale — 9,303 33 — 9,336 Equity securities: Mutual funds and common stock $ — $ 14 $ — $ — $ 14 Total equity securities $ — $ 14 $ — $ — $ 14 Total securities $ — $ 9,317 $ 33 $ — $ 9,350 Loans held-for-sale Residential first mortgage loans — 803 — — 803 Acquisition, development, and construction — 138 — — 138 Commercial and industrial loans — — 40 — — 40 Loans held-for-investment Residential first mortgage loans $ 8 8 Acquisition, development, and construction $ 58 58 Derivative assets Interest rate swaps and swaptions — 129 — — 129 Futures — 1 — — 1 Rate lock commitments (fallout-adjusted) — — 11 — 11 Mortgage-backed securities forwards — 7 — — 7 Mortgage servicing rights — — 1,092 — 1,092 Total assets at fair value $ — $ — $ 10,501 $ — $ 1,136 $ — $ 11,637 Derivative liabilities Mortgage-backed securities forwards $ — $ 9 $ — $ — $ 9 Interest rate swaps and swaptions $ — $ 61 $ — $ — $ 61 Rate lock commitments (fallout-adjusted) $ — $ — $ 3 $ — $ 3 Total liabilities at fair value $ — $ 70 $ 3 $ — $ 73 December 31, 2023 (in millions) Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs Netting Adjustments Total Fair Value Assets: Mortgage-related Debt Securities Available for Sale: GSE certificates $ — $ 1,221 $ — $ — $ 1,221 GSE CMOs — 5,162 — — 5,162 Private Label CMOs — 148 32 — 180 Total mortgage-related debt securities $ — $ 6,531 $ 32 $ — $ 6,563 Other Debt Securities Available for Sale: U. S. Treasury obligations $ 198 $ — $ — $ 198 GSE debentures — 1,609 — — 1,609 Asset-backed securities — 302 — — 302 Municipal bonds — 6 — — 6 Corporate bonds — 343 — — 343 Foreign notes — 34 — — 34 Capital trust notes — 90 — — 90 Total other debt securities $ 198 $ 2,384 $ — $ — $ 2,582 Total debt securities available for sale $ 198 $ 8,915 $ 32 $ — $ 9,145 Equity securities: Mutual funds and common stock — 14 — — 14 Total equity securities — 14 — — 14 Total securities $ 198 $ 8,929 $ 32 $ — $ 9,159 Loans held-for-sale Residential first mortgage loans $ — $ 770 $ — $ — $ 770 Acquisition, development, and construction 123 $ 123 Commercial and industrial loans 9 $ 9 Derivative assets Interest rate swaps and swaptions — 115 — — 115 Futures — — — — — Rate lock commitments (fallout-adjusted) — — 12 — 12 Mortgage-backed securities forwards — 11 — — 11 Mortgage servicing rights — — 1,111 — 1,111 Total assets at fair value $ 198 $ 9,957 $ 1,155 $ — $ 11,310 Derivative liabilities Mortgage-backed securities forwards — 32 — — 32 Futures 1 1 Interest rate swaps and swaptions — 59 — — 59 Rate lock commitments (fallout-adjusted) — — . 3 — 3 Total liabilities at fair value $ — $ 92 $ 3 $ — . $ 95
Roll Forward of Financial Instruments	The following tables include a roll forward of the Consolidated Statements of Condition amounts (including the change in fair value) for financial instruments classified by us within Level 3 of the valuation hierarchy: (dollars in millions) Balance at Beginning of Year Total Gains / (Losses) Recorded in Earnings (1) Purchases / Originations Sales Settlement Transfers In (Out) Balance at End of Year Three Months Ended March 31, 2024 Assets Mortgage servicing rights (1) $ 1,111 $ 8 $ 42 $ (69) — — $ 1,092 Private Label CMOs — — — — — 33 33 Rate lock commitments (net) (1)(2) 9 (1) 12 (12) 8 Totals $ 1,120 $ 7 $ 54 $ (69) $ — $ 21 $ 1,133 (1) We utilized swaptions, futures, forward agency and loan sales and interest rate swaps to manage the risk associated with mortgage servicing rights and rate lock commitments. Gains and losses for individual lines do not reflect the effect of our risk management activities related to such Level 3 instruments. (2) Rate lock commitments are reported on a fallout-adjusted basis. Transfers out of Level 3 represent the settlement value of the commitments that are transferred to LHFS, which are classified as Level 2 assets.
Quantitative Information about Recurring Level 3 Fair Value Financial Instruments	The following tables present the quantitative information about recurring Level 3 fair value financial instruments and the fair value measurements as of March 31, 2024: Fair Value Valuation Technique Unobservable Input (1) Range (Weighted Average) (dollars in millions) Assets Mortgage servicing rights $ 1,092 Discounted cash flows Option adjusted spread 4.9% - 21.7% 5.3% Constant prepayment rate —% - 10.0% 7.7% Weighted average cost to service per loan $65 - $90 $68 Private Label CMOs $ 33 Discounted cash flows Constant default rates 0.10% - 0.30% Weighted average life 7.96 - 11.50 Rate lock commitments (net) $ 8 Consensus pricing Origination pull-through rate 71.80% (1) Unobservable inputs were weighted by their relative fair value of the instruments.
Assets Measured at Fair Value on a Nonrecurring Basis	The following tables present assets that were measured at fair value on a non-recurring basis as of March 31, 2024 and December 31, 2023, and that were included in the Company’s Consolidated Statements of Condition at those dates: Fair Value Measurements at March 31, 2024 Using (in millions) Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total Fair Value Certain impaired loans (2) $ 236 $ 236 Other assets (1) $ — $ — $ 50 $ 50 Total $ — $ — $ 286 $ 286 (1) Represents the fair value of repossessed assets, based on the appraised value of the collateral subsequent to its initial classification as repossessed assets and equity securities without readily determinable fair values. These equity securities are classified as Level 3 due to the infrequency of the observable prices and/or the restrictions on the shares. (2) Represents the fair value of impaired loans, based on the value of the collateral. Fair Value Measurements at December 31, 2023 Using (in millions) Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total Fair Value Certain impaired loans (2) $ — $ — $ 197 $ 197 Other assets (1) — — 50 50 Total $ — $ — $ 247 $ 247 (1) Represents the fair value of repossessed assets, based on the appraised value of the collateral subsequent to its initial classification as repossessed assets and equity securities without readily determinable fair values. These equity securities are classified as Level 3 due to the infrequency of the observable prices and/or the restrictions on the shares. (2)
Carrying Amount and Estimated Fair Value of Financial Instruments	The following tables summarize the carrying values, estimated fair values, and fair value measurement levels of financial instruments that were not carried at fair value on the Company’s Consolidated Statements of Condition at March 31, 2024 and December 31, 2023: March 31, 2024 Fair Value Measurement Using (in millions) Carrying Value Estimated Fair Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Financial Assets: Cash and cash equivalents $ 12,890 $ 12,890 $ 12,890 $ — $ — FHLB and FRB stock (1) 1,550 1,550 — 1,550 — Loans and leases held for investment, net 81,112 76,458 — — 76,458 Financial Liabilities: Deposits $ 74,858 $ 74,755 $ 48,095 (2) $ 26,660 (3) $ — Borrowed funds 26,727 26,651 — 26,651 — (1) Carrying value and estimated fair value are at cost. (2) Interest-bearing checking and money market accounts, savings accounts, and non-interest-bearing accounts. (3) Certificates of deposit. December 31, 2023 Fair Value Measurement Using (in millions) Carrying Value Estimated Fair Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Financial Assets: Cash and cash equivalents $ 11,475 $ 11,475 $ 11,475 $ — $ — FHLB and FRB stock (1) 1,392 1,392 — 1,392 — Loans and leases held for investment, net 83,627 79,333 — — 79,333 Financial Liabilities: Deposits $ 81,526 $ 81,247 $ 59,972 (2) $ 21,275 (3) $ — Borrowed funds 21,267 21,082 — 21,082 — (1) Carrying value and estimated fair value are at cost. (2) Interest-bearing checking and money market accounts, savings accounts, and non-interest-bearing accounts. (3) Certificates of deposit.
Changes in Fair Value Included in Earnings - Fair Value Option	The following table reflects the change in fair value included in earnings of financial instruments for which the fair value option has been elected: For the Three Months ended March 31, (dollars in millions) 2024 2023 Assets Loans held-for-sale Net gain on loan sales $ 3 $ 28
Differences Between Aggregate Fair Value and Aggregate Remaining Contractual Principal Balance Outstanding - Fair Value Option	The following table reflects the difference between the aggregate fair value and aggregate remaining contractual principal balance outstanding for assets and liabilities for which the fair value option has been elected: March 31, 2024 (dollars in millions) Unpaid Principal Balance Fair Value Fair Value Over / (Under) UPB Assets: Nonaccrual loans: Loans held-for-sale $ — $ — $ — Loans held-for-investment — — — Total non-accrual loans — — — Other performing loans: Loans held-for-sale 923 941 18 Loans held-for-investment 67 66 (1) Total other performing loans 990 1,007 17 Total loans: Loans held-for-sale 923 941 18 Loans held-for-investment 67 66 (1) Total loans $ 990 $ 1,007 $ 17 December 31, 2023 (dollars in millions) Unpaid Principal Balance Fair Value Fair Value Over / (Under) UPB Assets: Nonaccrual loans: Loans held-for-sale $ 2 $ 2 $ — Total non-accrual loans 2 2 — Other performing loans: Loans held-for-sale 869 894 25 Total other performing loans 869 894 25 Total loans: Loans held-for-sale 871 896 25 Total loans $ 871 $ 896 $ 25

Mezzanine and Stockholders Eq_2

Mezzanine and Stockholders Equity (Tables)	3 Months Ended
	Mar. 31, 2024
Temporary Equity Disclosure [Abstract]
Temporary Equity	The following table summarizes the Company's preferred stock at March 31, 2024: Preferred Stock Series Amount Outstanding (in millions) Issued Date Shares Authorized Shares Issued Shares Outstanding (1) Par Value Liquidation Preference 6.375% Fixed-to-Floating Rate Perpetual Noncumulative Series A $ 503 March 17, 2017 5,000,000 515,000 515,000 $ 0.01 1,000 13.00% Fixed Rate Perpetual Noncumulative Convertible Series B $ 258 March 11, 2024 267,062 192,062 192,062 $ 0.01 2,000 13.00% Fixed Rate Perpetual Noncumulative Convertible Series C $ 337 March 11, 2024 523,369 256,307 249,556 $ 0.01 2,000 Non-Voting Common Equivalent Series D $ — N/A 315,000 0 0 $ 0.01 $ 0.0001 (1) Shares outstanding for Series C excludes 6,751 shares converted to common shares following issuance.
Schedule of Stock by Class	The following table summarizes the Company's preferred stock at March 31, 2024: Preferred Stock Series Amount Outstanding (in millions) Issued Date Shares Authorized Shares Issued Shares Outstanding (1) Par Value Liquidation Preference 6.375% Fixed-to-Floating Rate Perpetual Noncumulative Series A $ 503 March 17, 2017 5,000,000 515,000 515,000 $ 0.01 1,000 13.00% Fixed Rate Perpetual Noncumulative Convertible Series B $ 258 March 11, 2024 267,062 192,062 192,062 $ 0.01 2,000 13.00% Fixed Rate Perpetual Noncumulative Convertible Series C $ 337 March 11, 2024 523,369 256,307 249,556 $ 0.01 2,000 Non-Voting Common Equivalent Series D $ — N/A 315,000 0 0 $ 0.01 $ 0.0001 (1) Shares outstanding for Series C excludes 6,751 shares converted to common shares following issuance.

Organization and Basis of Pre_3

Organization and Basis of Presentation (Details)	3 Months Ended
	Mar. 31, 2024 originator branch state $ / shares	Dec. 31, 2023 $ / shares	Nov. 23, 1993 $ / shares
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Common stock, par value (in usd per share)	$ 0.01	$ 0.01	$ 0.01
Shares issued price per share split adjusted basis (in usd per share)			0.93
Number of traditional branches | branch	419
Number of states in which offices are located | state	12
Financing Receivable, Number Of Third-Party Mortgage Originators | originator	3,600
IPO
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Shares issued, price per share (in usd per share)			$ 25

Computation of Earnings per C_3

Computation of Earnings per Common Share (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Earnings Per Share [Abstract]
Net income available to common stockholders	$ (335)	$ 1,998
Less: Dividends paid on and earnings allocated to participating securities	0	(21)
Earnings applicable to common stock	$ (335)	$ 1,977
Weighted average common shares outstanding (in shares)	740,047,777	686,911,555
Basic earnings per common share (in usd per share)	$ (0.45)	$ 2.88
Potential dilutive common shares	0	1,360,056
Total shares for diluted earnings per common share compensation (in shares)	740,047,777	688,271,611
Diluted earnings per common share and common share equivalents (in usd per share)	$ (0.45)	$ 2.87

Business Combinations - Narrati

Business Combinations - Narrative (Details) $ in Millions				3 Months Ended		12 Months Ended
	Mar. 31, 2023 shares	Mar. 20, 2023 USD ($) branch	Mar. 19, 2023 USD ($)	Mar. 31, 2024 USD ($) branch	Mar. 31, 2023 USD ($)	Dec. 31, 2023 USD ($)
Business Acquisition [Line Items]
Number of branches				419
Settlement period				1 year
Bargain purchase gain | $						$ 2,000
Reduction to bargain purchase gain | $				$ 121	$ (2,001)
Core Deposits
Business Acquisition [Line Items]
Estimated useful life				10 years
Signature Bridge Bank
Business Acquisition [Line Items]
Bargain purchase gain | $		$ 2,010	$ 2,010
Restructuring charges | $		$ 236
Signature Bridge Bank | Core Deposits
Business Acquisition [Line Items]
Estimated useful life		10 years
Signature Bridge Bank | FDIC
Business Acquisition [Line Items]
Shares issued (in shares) | shares	39,032,006
Signature Bridge Bank | New York
Business Acquisition [Line Items]
Number of branches		29
Signature Bridge Bank | California
Business Acquisition [Line Items]
Number of branches		7
Signature Bridge Bank | North Carolina
Business Acquisition [Line Items]
Number of branches		2
Signature Bridge Bank | Connecticut
Business Acquisition [Line Items]
Number of branches		1
Signature Bridge Bank | Nevada
Business Acquisition [Line Items]
Number of branches		1

Business Combinations - Net Ass

Business Combinations - Net Assets Acquired (Details) - USD ($) $ in Millions			12 Months Ended
	Mar. 20, 2023	Mar. 19, 2023	Dec. 31, 2023
Fair value adjustments:
Bargain purchase gain on Signature Transaction, as initially reported			$ 2,000
Restatement Adjustment
Fair value adjustments:
Measurement period adjustments, excluding taxes		$ (134)
Change in deferred tax liability		143
Signature Bridge Bank
Business Acquisition [Line Items]
Net assets acquired before fair value adjustments	$ 2,973
Fair value adjustments:
Loans	(727)
Core deposit and other intangibles	464
Certificates of deposit	27
Other net assets and liabilities	39
FDIC Equity Appreciation Instrument	(85)
Deferred tax liability	(690)
Bargain purchase gain on Signature Transaction, as initially reported	2,010	$ 2,010
Signature Bridge Bank | Previously Reported
Fair value adjustments:
Bargain purchase gain on Signature Transaction, as initially reported	$ 2,001

Business Combinations - Prelimi

Business Combinations - Preliminary Allocation (Details) - USD ($) $ in Millions			3 Months Ended	12 Months Ended
	Mar. 20, 2023	Mar. 19, 2023	Mar. 31, 2024	Dec. 31, 2023
Fair value of assets acquired:
Cash & cash equivalents			$ (142)
Fair value of liabilities assumed:
Bargain purchase gain				$ 2,000
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
Total loans held for investment	11,741
CDI and other intangible assets	464
Other assets	413
Total assets acquired	37,751
Fair value of liabilities assumed:
Deposits	33,507
Other liabilities	2,149
Total liabilities assumed	35,656
Fair value of net identifiable assets	2,095
Bargain purchase gain	2,010	$ 2,010
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
Total 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 assets acquired:
Total loans held for investment	(477)
CDI and other intangible assets	0
Other assets	(266)
Total assets acquired	(885)
Fair value of liabilities assumed:
Deposits	(61)
Other liabilities	(833)
Total liabilities assumed	(894)
Fair value of net identifiable assets	9
Bargain purchase gain	9
Signature Bridge Bank | Commercial and industrial
Fair value of assets acquired:
Total loans held for investment	9,888
Signature Bridge Bank | Commercial and industrial | Previously Reported
Fair value of assets acquired:
Total loans held for investment	10,102
Signature Bridge Bank | Commercial and industrial | Restatement Adjustment
Fair value of assets acquired:
Total loans held for investment	(214)
Signature Bridge Bank | Commercial real estate
Fair value of assets acquired:
Total loans held for investment	1,680
Signature Bridge Bank | Commercial real estate | Previously Reported
Fair value of assets acquired:
Total loans held for investment	1,942
Signature Bridge Bank | Commercial real estate | Restatement Adjustment
Fair value of assets acquired:
Total loans held for investment	(262)
Signature Bridge Bank | Consumer and other
Fair value of assets acquired:
Total loans held for investment	173
Signature Bridge Bank | Consumer and other | Previously Reported
Fair value of assets acquired:
Total loans held for investment	174
Signature Bridge Bank | Consumer and other | Restatement Adjustment
Fair value of assets acquired:
Total loans held for investment	$ (1)

Business Combinations - PCD Loa

Business Combinations - PCD Loans Acquired (Details) - USD ($) $ in Millions		3 Months Ended
	Mar. 20, 2023	Mar. 31, 2024	Mar. 31, 2023
Business Acquisition [Line Items]
ACL at acquisition		$ 0	$ (13)
Signature Bridge Bank
Business Acquisition [Line Items]
Par value (UPB)	$ 583
ACL at acquisition	(13)
Non-credit (discount)	(76)
Fair value	$ 494

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Income (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Accumulated Other Comprehensive Income (Loss) [Line Items]
Income tax expense (benefit)	$ (54)	$ 1
Net income (loss)	(327)	2,006
Interest expense	889	479
General and administrative	236	$ 136
Accumulated Defined Benefit Plans Adjustment Attributable to Parent
Accumulated Other Comprehensive Income (Loss) [Line Items]
Income tax expense (benefit)	0
General and administrative	(1)
Reclassifications, net of tax	(1)
Past service liability
Accumulated Other Comprehensive Income (Loss) [Line Items]
General and administrative	0
Actuarial losses
Accumulated Other Comprehensive Income (Loss) [Line Items]
General and administrative	(1)
Reclassification from AOCI
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net income (loss)	16
Reclassification from AOCI | Unrealized gains on available-for-sale securities:
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net (loss) on securities	0
Income tax expense (benefit)	0
Net income (loss)	0
Reclassification from AOCI | Unrealized gains on cash flow hedges:
Accumulated Other Comprehensive Income (Loss) [Line Items]
Income tax expense (benefit)	(6)
Net income (loss)	17
Interest expense	$ 23

Investment Securities - Summary

Investment Securities - Summary of Investment Securities (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Debt securities available-for-sale
Amortized Cost	$ 9,336
Equity securities:
Fair Value	14	$ 14
Total Securities
Amortized Cost	10,241	9,958
Gross Unrealized Gain	36	62
Gross Unrealized Loss	927	861
Fair Value	9,350	9,159
Amortized cost of investment securities	1
Interest receivable	$ 35	$ 38
Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration]	Other assets	Other assets
Mortgage Backed Securities And Other Securities
Debt securities available-for-sale
Amortized Cost	$ 10,225	$ 9,942
Gross Unrealized Gain	36	62
Gross Unrealized Loss	925	859
Fair Value	9,336	9,145
Mortgage-Related Debt Securities:
Debt securities available-for-sale
Amortized Cost	7,680	7,035
Gross Unrealized Gain	31	56
Gross Unrealized Loss	575	528
Fair Value	7,136	6,563
GSE certificates
Debt securities available-for-sale
Amortized Cost	1,342	1,366
Gross Unrealized Gain	1	1
Gross Unrealized Loss	163	146
Fair Value	1,180	1,221
GSE CMOs
Debt securities available-for-sale
Amortized Cost	6,167	5,495
Gross Unrealized Gain	25	48
Gross Unrealized Loss	412	381
Fair Value	5,780	5,162
Private Label CMOs
Debt securities available-for-sale
Amortized Cost	171	174
Gross Unrealized Gain	5	7
Gross Unrealized Loss	0	1
Fair Value	176	180
Other Debt Securities:
Debt securities available-for-sale
Amortized Cost	2,545	2,907
Gross Unrealized Gain	5	6
Gross Unrealized Loss	350	331
Fair Value	2,200	2,582
U. S. Treasury obligations
Debt securities available-for-sale
Amortized Cost	0	198
Gross Unrealized Gain	0	0
Gross Unrealized Loss	0	0
Fair Value	0	198
GSE debentures
Debt securities available-for-sale
Amortized Cost	1,752	1,899
Gross Unrealized Gain	0	1
Gross Unrealized Loss	312	291
Fair Value	1,440	1,609
Asset-backed securities
Debt securities available-for-sale
Amortized Cost	291	307
Gross Unrealized Gain	0	0
Gross Unrealized Loss	4	5
Fair Value	287	302
Municipal bonds
Debt securities available-for-sale
Amortized Cost	6	6
Gross Unrealized Gain	0	0
Gross Unrealized Loss	0	0
Fair Value	6	6
Corporate bonds
Debt securities available-for-sale
Amortized Cost	364	365
Gross Unrealized Gain	0	0
Gross Unrealized Loss	24	22
Fair Value	340	343
Foreign notes
Debt securities available-for-sale
Amortized Cost	35	35
Gross Unrealized Gain	0	0
Gross Unrealized Loss	0	1
Fair Value	35	34
Capital trust notes
Debt securities available-for-sale
Amortized Cost	97	97
Gross Unrealized Gain	5	5
Gross Unrealized Loss	10	12
Fair Value	92	90
Equity securities:
Equity securities:
Amortized Cost	16	16
Gross Unrealized Loss	2	2
Fair Value	14	14
Mutual funds and common stock
Equity securities:
Amortized Cost	16	16
Gross Unrealized Loss	2	2
Fair Value	$ 14	$ 14

Investment Securities - Investm

Investment Securities - Investment Securities, Narrative (Details)	3 Months Ended
	Mar. 31, 2024 USD ($) security	Mar. 31, 2023 USD ($)	Dec. 31, 2023 USD ($) security
Schedule of Investments [Line Items]
Federal home loan bank stock | $	$ 1,550,000,000		$ 1,392,000,000
Federal reserve bank stock | $	203,000,000		203,000,000
Equity securities, gross unrealized loss | $	0	$ 0
Corporate bonds
Schedule of Investments [Line Items]
Fair Value | $	$ 340,000,000		$ 343,000,000
Collateralized Debt Obligations
Schedule of Investments [Line Items]
Number of securities continuous unrealized loss position more than twelve months	180		84
Capital trust notes
Schedule of Investments [Line Items]
Number of securities continuous unrealized loss position more than twelve months	6		6
Asset-backed securities
Schedule of Investments [Line Items]
Number of securities continuous unrealized loss position more than twelve months	7		8
Corporate bonds
Schedule of Investments [Line Items]
Number of securities continuous unrealized loss position more than twelve months	12		12
Provision for credit loss | $	$ 1,000,000
US Government Agencies Debt Securities
Schedule of Investments [Line Items]
Number of securities continuous unrealized loss position more than twelve months	39		37
Mortgage-Related Debt Securities:
Schedule of Investments [Line Items]
Number of securities continuous unrealized loss position more than twelve months	326		302
Mutual funds and common stock
Schedule of Investments [Line Items]
Number of securities continuous unrealized loss position more than twelve months			1
Municipal bonds
Schedule of Investments [Line Items]
Number of securities continuous unrealized loss position more than twelve months	1		1
Foreign notes
Schedule of Investments [Line Items]
Number of securities continuous unrealized loss position more than twelve months	1		1
Private Collateralized Mortgage Obligations
Schedule of Investments [Line Items]
Number of securities continuous unrealized loss position more than twelve months	1
Federal Home Loan Bank of New York
Schedule of Investments [Line Items]
Federal home loan bank stock | $	$ 1,000,000,000		$ 861,000,000
Federal Home Loan Bank of Indianapolis
Schedule of Investments [Line Items]
Federal home loan bank stock | $	$ 329,000,000		$ 329,000,000

Investment Securities - Amortiz

Investment Securities - Amortized Cost and Estimated Fair Value of Securities by Contractual Maturity (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Debt Securities, Available-for-sale [Line Items]
Due within one year	$ 299
Due from one to five years	455
Due from five to ten years	1,565
Due after ten years	7,017
Amortized Cost	9,336
Mortgage-Related Debt Securities:
Debt Securities, Available-for-sale [Line Items]
Due within one year	2
Due from one to five years	172
Due from five to ten years	311
Due after ten years	7,195
Amortized Cost	7,680	$ 7,035
U.S. Government agency and GSE obligations
Debt Securities, Available-for-sale [Line Items]
Due within one year	250
Due from one to five years	0
Due from five to ten years	1,502
Due after ten years	0
Amortized Cost	1,752
US States and Political Subdivisions Debt Securities
Debt Securities, Available-for-sale [Line Items]
Due within one year	0
Due from one to five years	0
Due from five to ten years	6
Due after ten years	0
Amortized Cost	6
Other Debt Obligations
Debt Securities, Available-for-sale [Line Items]
Due within one year	50
Due from one to five years	304
Due from five to ten years	102
Due after ten years	331
Amortized Cost	$ 787

Investment Securities - Summa_2

Investment Securities - Summary of Unrealized Loss Positions on Investment Securities (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Debt Securities, Available-for-sale [Line Items]
Less than Twelve Months, Fair Value	$ 1,360	$ 2,357
Less than Twelve Months, Unrealized Loss	28	84
Twelve Months or Longer, Fair Value	5,531	4,198
Twelve Months or Longer, Unrealized Loss	899	777
Fair Value	6,891	6,555
Unrealized Loss	927	861
Other Debt Securities: | U. S. Treasury obligations
Debt Securities, Available-for-sale [Line Items]
Less than Twelve Months, Fair Value	0	0
Less than Twelve Months, Unrealized Loss	0	0
Twelve Months or Longer, Fair Value	0	0
Twelve Months or Longer, Unrealized Loss	0	0
Fair Value	0	0
Unrealized Loss	0	0
Other Debt Securities: | U.S. Government agency and GSE obligations
Debt Securities, Available-for-sale [Line Items]
Less than Twelve Months, Fair Value	0	181
Less than Twelve Months, Unrealized Loss	0	1
Twelve Months or Longer, Fair Value	1,441	1,362
Twelve Months or Longer, Unrealized Loss	311	290
Fair Value	1,441	1,543
Unrealized Loss	311	291
Other Debt Securities: | GSE certificates
Debt Securities, Available-for-sale [Line Items]
Less than Twelve Months, Fair Value	53	312
Less than Twelve Months, Unrealized Loss	1	5
Twelve Months or Longer, Fair Value	1,087	843
Twelve Months or Longer, Unrealized Loss	163	141
Fair Value	1,140	1,155
Unrealized Loss	164	146
Other Debt Securities: | Private Label CMOs
Debt Securities, Available-for-sale [Line Items]
Less than Twelve Months, Fair Value	15	29
Less than Twelve Months, Unrealized Loss	0	1
Twelve Months or Longer, Fair Value	3	0
Twelve Months or Longer, Unrealized Loss	0	0
Fair Value	18	29
Unrealized Loss	0	1
Other Debt Securities: | GSE CMOs
Debt Securities, Available-for-sale [Line Items]
Less than Twelve Months, Fair Value	1,292	1,835
Less than Twelve Months, Unrealized Loss	27	77
Twelve Months or Longer, Fair Value	2,340	1,312
Twelve Months or Longer, Unrealized Loss	385	304
Fair Value	3,632	3,147
Unrealized Loss	412	381
Other Debt Securities: | Asset-backed securities
Debt Securities, Available-for-sale [Line Items]
Less than Twelve Months, Fair Value	0	0
Less than Twelve Months, Unrealized Loss	0	0
Twelve Months or Longer, Fair Value	207	228
Twelve Months or Longer, Unrealized Loss	4	5
Fair Value	207	228
Unrealized Loss	4	5
Other Debt Securities: | Municipal bonds
Debt Securities, Available-for-sale [Line Items]
Less than Twelve Months, Fair Value	0	0
Less than Twelve Months, Unrealized Loss	0	0
Twelve Months or Longer, Fair Value	6	6
Twelve Months or Longer, Unrealized Loss	0	0
Fair Value	6	6
Unrealized Loss	0	0
Other Debt Securities: | Corporate bonds
Debt Securities, Available-for-sale [Line Items]
Less than Twelve Months, Fair Value	0	0
Less than Twelve Months, Unrealized Loss	0	0
Twelve Months or Longer, Fair Value	341	343
Twelve Months or Longer, Unrealized Loss	24	22
Fair Value	341	343
Unrealized Loss	24	22
Other Debt Securities: | Foreign notes
Debt Securities, Available-for-sale [Line Items]
Less than Twelve Months, Fair Value	0	0
Less than Twelve Months, Unrealized Loss	0	0
Twelve Months or Longer, Fair Value	10	9
Twelve Months or Longer, Unrealized Loss	0	1
Fair Value	10	9
Unrealized Loss	0	1
Other Debt Securities: | Capital trust notes
Debt Securities, Available-for-sale [Line Items]
Less than Twelve Months, Fair Value	0	0
Less than Twelve Months, Unrealized Loss	0	0
Twelve Months or Longer, Fair Value	82	81
Twelve Months or Longer, Unrealized Loss	10	12
Fair Value	82	81
Unrealized Loss	10	12
Equity securities:
Debt Securities, Available-for-sale [Line Items]
Less than Twelve Months, Fair Value	0	0
Less than Twelve Months, Unrealized Loss	0	0
Twelve Months or Longer, Fair Value	14	14
Twelve Months or Longer, Unrealized Loss	2	2
Fair Value	14	14
Unrealized Loss	$ 2	$ 2

Loans and Leases - Components (

Loans and Leases - Components (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023	Mar. 31, 2023	Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans and leases held for investment	$ 82,327	$ 84,619
Allowance for credit losses on loans and leases	(1,215)	(992)	$ (550)	$ (393)
Total loans and leases held for investment, net	81,112	83,627
Loans held for sale, at fair value	981	1,182
Total loans and leases, net	$ 82,093	$ 84,809
Percent of loans held for investment	100%	100%
Unearned income	$ 243	$ 258
Accrued interest receivable	410	410
Mortgage Loans:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans and leases held for investment	56,196	56,708
Allowance for credit losses on loans and leases	$ (993)	$ (756)	(283)	(290)
Percent of loans held for investment	68.30%	67%
Mortgage Loans: | Multi-family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans and leases held for investment	$ 36,859	$ 37,265
Percent of loans held for investment	44.80%	44%
Mortgage Loans: | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans and leases held for investment	$ 10,323	$ 10,470
Percent of loans held for investment	12.50%	12.40%
Mortgage Loans: | One-to-four family first mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans and leases held for investment	$ 5,807	$ 6,061
Percent of loans held for investment	7.10%	7.20%
Mortgage Loans: | Acquisition, development, and construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans and leases held for investment	$ 3,207	$ 2,912
Percent of loans held for investment	3.90%	3.40%
Other Loans:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans and leases held for investment	$ 26,131	$ 27,911
Allowance for credit losses on loans and leases	$ (222)	$ (236)	$ (267)	$ (103)
Percent of loans held for investment	31.70%	33%
Other Loans: | Commercial and industrial loans and lease financing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans and leases held for investment	$ 24,418	$ 25,254
Percent of loans held for investment	29.60%	29.80%
Other Loans: | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans and leases held for investment	$ 21,428	$ 22,065
Percent of loans held for investment	26%	26.10%
Other Loans: | Lease financing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans and leases held for investment	$ 2,990	$ 3,189
Percent of loans held for investment	3.60%	3.80%
Other Loans: | Specialty finance loans and leases
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans and leases held for investment	$ 4,800	$ 5,200
Other Loans: | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans and leases held for investment	$ 1,713	$ 2,657
Percent of loans held for investment	2.10%	3.10%

Loans and Leases - Narrative (D

Loans and Leases - Narrative (Details) $ in Millions	3 Months Ended
	Mar. 31, 2024 USD ($) loan	Dec. 31, 2023 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for sale, at fair value	$ 981	$ 1,182
LGG loans	507
Loans 90 days or greater past due and still accruing	$ 0	0
Largest real estate loans | loan	350
Loans and leases held for investment, net of deferred loan fees and costs ($66 and zero measured at fair value at March 31, 2024 and December 31, 2023, respectively)	$ 82,327	84,619
Residential mortgage loans in process of foreclosure	74	81
Financing receivable increase	2,300
One-to-four family first mortgage | Term Extension
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans modified that subsequently defaulted	3
One-to-four family first mortgage | Combination - Interest Rate Reduction & Term Extension
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans modified that subsequently defaulted	3
Mortgage Loans:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases held for investment, net of deferred loan fees and costs ($66 and zero measured at fair value at March 31, 2024 and December 31, 2023, respectively)	56,196	56,708
Mortgage Loans: | One-to-four family first mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases held for investment, net of deferred loan fees and costs ($66 and zero measured at fair value at March 31, 2024 and December 31, 2023, respectively)	$ 5,807	$ 6,061

Loans and Leases - Quality of L

Loans and Leases - Quality of Loans Held for Investment (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Financing Receivable, Recorded Investment, Past Due
Total Loans Receivable	$ 82,327	$ 84,619
Non- Accrual Loans	798	428
Loans 90 Days or More Delinquent and Still Accruing Interest	0	0
Loans 30-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due
Total Loans Receivable	212	250
Total Past Due Loans
Financing Receivable, Recorded Investment, Past Due
Total Loans Receivable	1,010	678
Current Loans
Financing Receivable, Recorded Investment, Past Due
Total Loans Receivable	81,317	83,941
Mortgage Loans:
Financing Receivable, Recorded Investment, Past Due
Total Loans Receivable	56,196	56,708
Mortgage Loans: | Multi-family
Financing Receivable, Recorded Investment, Past Due
Total Loans Receivable	36,859	37,265
Non- Accrual Loans	339	138
Mortgage Loans: | Multi-family | Loans 30-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due
Total Loans Receivable	103	121
Mortgage Loans: | Multi-family | Total Past Due Loans
Financing Receivable, Recorded Investment, Past Due
Total Loans Receivable	442	259
Mortgage Loans: | Multi-family | Current Loans
Financing Receivable, Recorded Investment, Past Due
Total Loans Receivable	36,417	37,006
Mortgage Loans: | Commercial real estate
Financing Receivable, Recorded Investment, Past Due
Total Loans Receivable	10,323	10,470
Non- Accrual Loans	264	128
Mortgage Loans: | Commercial real estate | Loans 30-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due
Total Loans Receivable	9	28
Mortgage Loans: | Commercial real estate | Total Past Due Loans
Financing Receivable, Recorded Investment, Past Due
Total Loans Receivable	273	156
Mortgage Loans: | Commercial real estate | Current Loans
Financing Receivable, Recorded Investment, Past Due
Total Loans Receivable	10,050	10,314
Mortgage Loans: | One-to-four family first mortgage
Financing Receivable, Recorded Investment, Past Due
Total Loans Receivable	5,807	6,061
Non- Accrual Loans	98	95
Mortgage Loans: | One-to-four family first mortgage | Loans 30-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due
Total Loans Receivable	26	40
Mortgage Loans: | One-to-four family first mortgage | Total Past Due Loans
Financing Receivable, Recorded Investment, Past Due
Total Loans Receivable	124	135
Mortgage Loans: | One-to-four family first mortgage | Current Loans
Financing Receivable, Recorded Investment, Past Due
Total Loans Receivable	5,683	5,926
Mortgage Loans: | Acquisition, development, and construction
Financing Receivable, Recorded Investment, Past Due
Total Loans Receivable	3,207	2,912
Non- Accrual Loans	3	2
Mortgage Loans: | Acquisition, development, and construction | Loans 30-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due
Total Loans Receivable	6	2
Mortgage Loans: | Acquisition, development, and construction | Total Past Due Loans
Financing Receivable, Recorded Investment, Past Due
Total Loans Receivable	9	4
Mortgage Loans: | Acquisition, development, and construction | Current Loans
Financing Receivable, Recorded Investment, Past Due
Total Loans Receivable	3,198	2,908
Other Loans:
Financing Receivable, Recorded Investment, Past Due
Total Loans Receivable	26,131	27,911
Other Loans: | Commercial and industrial loans and lease financing
Financing Receivable, Recorded Investment, Past Due
Total Loans Receivable	24,418	25,254
Non- Accrual Loans	73	43
Other Loans: | Commercial and industrial loans and lease financing | Loans 30-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due
Total Loans Receivable	60	37
Other Loans: | Commercial and industrial loans and lease financing | Total Past Due Loans
Financing Receivable, Recorded Investment, Past Due
Total Loans Receivable	133	80
Other Loans: | Commercial and industrial loans and lease financing | Current Loans
Financing Receivable, Recorded Investment, Past Due
Total Loans Receivable	24,285	25,174
Other Loans: | Other
Financing Receivable, Recorded Investment, Past Due
Total Loans Receivable	1,713	2,657
Non- Accrual Loans	21	22
Other Loans: | Other | Loans 30-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due
Total Loans Receivable	8	22
Other Loans: | Other | Total Past Due Loans
Financing Receivable, Recorded Investment, Past Due
Total Loans Receivable	29	44
Other Loans: | Other | Current Loans
Financing Receivable, Recorded Investment, Past Due
Total Loans Receivable	$ 1,684	$ 2,613

Loans and Leases - Loans Held f

Loans and Leases - Loans Held for Investment by Credit Quality Indicator (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2024	$ 5,975
2023	7,055
2022	16,627
2021	11,883
2020	10,030
Prior To 2020	19,309
Revolving Loans	11,266
Revolving Loans Converted to Term Loans	182
Total	82,327		$ 84,619
Current-period gross write-offs
Total	(91)	$ (5)
Pass
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Total	74,190
Special mention
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Total	1,159
Substandard
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Total	6,978
Mortgage Loans:
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2024	285
2023	3,490
2022	13,064
2021	10,423
2020	9,081
Prior To 2020	17,626
Revolving Loans	2,212
Revolving Loans Converted to Term Loans	15
Total	56,196		56,708
Current-period gross write-offs
2024	0
2023	0
2022	0
2021	(6)
2020	(3)
Prior To 2020	(66)
Revolving Loans	0
Revolving Loans Converted to Term Loans	0
Total	(75)	(2)
Mortgage Loans: | Pass
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2024	281
2023	3,425
2022	12,524
2021	9,987
2020	8,571
Prior To 2020	11,760
Revolving Loans	2,128
Revolving Loans Converted to Term Loans	15
Total	48,691
Mortgage Loans: | Special mention
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2024	4
2023	0
2022	139
2021	85
2020	74
Prior To 2020	631
Revolving Loans	78
Revolving Loans Converted to Term Loans	0
Total	1,011
Mortgage Loans: | Substandard
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2024	0
2023	65
2022	401
2021	351
2020	436
Prior To 2020	5,235
Revolving Loans	6
Revolving Loans Converted to Term Loans	0
Total	6,494
Mortgage Loans: | Multi-family
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Total	36,859		37,265
Mortgage Loans: | Multi-family | Pass
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Total	32,209		34,170
Mortgage Loans: | Multi-family | Special mention
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Total	702		768
Mortgage Loans: | Multi-family | Substandard
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Total	3,948		2,327
Mortgage Loans: | Commercial real estate
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Total	10,323		10,470
Mortgage Loans: | Commercial real estate | Pass
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Total	8,417		8,734
Mortgage Loans: | Commercial real estate | Special mention
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Total	237		367
Mortgage Loans: | Commercial real estate | Substandard
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Total	1,669		1,369
Mortgage Loans: | One-to-four family first mortgage
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Total	5,807		6,061
Mortgage Loans: | One-to-four family first mortgage | Pass
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Total	4,985		5,328
Mortgage Loans: | One-to-four family first mortgage | Special mention
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Total	0		0
Mortgage Loans: | One-to-four family first mortgage | Substandard
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Total	822		733
Mortgage Loans: | Acquisition, development, and construction
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Total	3,207		2,912
Mortgage Loans: | Acquisition, development, and construction | Pass
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Total	3,081		2,825
Mortgage Loans: | Acquisition, development, and construction | Special mention
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Total	72		57
Mortgage Loans: | Acquisition, development, and construction | Substandard
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Total	54		30
Other Loans:
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2024	5,690
2023	3,565
2022	3,563
2021	1,460
2020	949
Prior To 2020	1,683
Revolving Loans	9,054
Revolving Loans Converted to Term Loans	167
Total	26,131		27,911
Current-period gross write-offs
2024	0
2023	(1)
2022	(8)
2021	(5)
2020	0
Prior To 2020	(2)
Revolving Loans	0
Revolving Loans Converted to Term Loans	0
Total	(16)	$ (3)
Other Loans: | Pass
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2024	5,662
2023	3,548
2022	3,326
2021	1,401
2020	896
Prior To 2020	1,599
Revolving Loans	8,901
Revolving Loans Converted to Term Loans	166
Total	25,499		78,374
Other Loans: | Special mention
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2024	18
2023	4
2022	48
2021	17
2020	13
Prior To 2020	5
Revolving Loans	43
Revolving Loans Converted to Term Loans	0
Total	148		1,527
Other Loans: | Substandard
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2024	10
2023	13
2022	189
2021	42
2020	40
Prior To 2020	79
Revolving Loans	110
Revolving Loans Converted to Term Loans	1
Total	484		4,718
Other Loans: | Commercial and industrial loans and lease financing
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Total	24,418		25,254
Other Loans: | Commercial and industrial loans and lease financing | Pass
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Total	23,816		24,683
Other Loans: | Commercial and industrial loans and lease financing | Special mention
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Total	148		335
Other Loans: | Commercial and industrial loans and lease financing | Substandard
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Total	454		236
Other Loans: | Other
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Total	1,713		2,657
Other Loans: | Other | Pass
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Total	1,682		2,634
Other Loans: | Other | Special mention
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Total	0		0
Other Loans: | Other | Substandard
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Total	$ 31		$ 23

Loans and Leases - Collateral (

Loans and Leases - Collateral (Details) - Asset pledged as collateral $ in Millions	Mar. 31, 2024 USD ($)
Real Property
Financial Instruments Owned and Pledged as Collateral [Line Items]
Total collateral-dependent loans held for investment	$ 981
Real Property | Mortgage Loans: | Multi-family
Financial Instruments Owned and Pledged as Collateral [Line Items]
Total collateral-dependent loans held for investment	457
Real Property | Mortgage Loans: | Commercial real estate
Financial Instruments Owned and Pledged as Collateral [Line Items]
Total collateral-dependent loans held for investment	412
Real Property | Mortgage Loans: | One-to-four family first mortgage
Financial Instruments Owned and Pledged as Collateral [Line Items]
Total collateral-dependent loans held for investment	107
Real Property | Mortgage Loans: | Acquisition, development, and construction
Financial Instruments Owned and Pledged as Collateral [Line Items]
Total collateral-dependent loans held for investment	5
Real Property | Other Loans: | Commercial and industrial
Financial Instruments Owned and Pledged as Collateral [Line Items]
Total collateral-dependent loans held for investment	0
Real Property | Other Loans: | Other
Financial Instruments Owned and Pledged as Collateral [Line Items]
Total collateral-dependent loans held for investment	0
Other
Financial Instruments Owned and Pledged as Collateral [Line Items]
Total collateral-dependent loans held for investment	78
Other | Mortgage Loans: | Multi-family
Financial Instruments Owned and Pledged as Collateral [Line Items]
Total collateral-dependent loans held for investment	0
Other | Mortgage Loans: | Commercial real estate
Financial Instruments Owned and Pledged as Collateral [Line Items]
Total collateral-dependent loans held for investment	0
Other | Mortgage Loans: | One-to-four family first mortgage
Financial Instruments Owned and Pledged as Collateral [Line Items]
Total collateral-dependent loans held for investment	0
Other | Mortgage Loans: | Acquisition, development, and construction
Financial Instruments Owned and Pledged as Collateral [Line Items]
Total collateral-dependent loans held for investment	0
Other | Other Loans: | Commercial and industrial
Financial Instruments Owned and Pledged as Collateral [Line Items]
Total collateral-dependent loans held for investment	78
Other | Other Loans: | Other
Financial Instruments Owned and Pledged as Collateral [Line Items]
Total collateral-dependent loans held for investment	$ 0

Loans and Leases - Loan Modific

Loans and Leases - Loan Modifications (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	$ 26	$ 46
Mortgage Loans: | Multi-family
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	$ 8	$ 0
Percent of Total Loan class	0.08%	0%
Mortgage Loans: | Commercial real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	$ 2	$ 44
Percent of Total Loan class	0.02%	0.42%
Mortgage Loans: | One-to-four family first mortgage
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	$ 2	$ 2
Percent of Total Loan class	0.03%	0.03%
Other Loans: | Other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	$ 1	$ 0
Percent of Total Loan class	0.06%	0%
Other Loans: | Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	$ 13	$ 0
Percent of Total Loan class	0.06%	0%
Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	$ 10	$ 44
Interest Rate Reduction | Mortgage Loans: | Multi-family
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	$ 8	$ 0
Interest Rate Reduction | Mortgage Loans: | Multi-family | Minimum
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted-average contractual interest rate	8.13%	0%
Interest Rate Reduction | Mortgage Loans: | Multi-family | Maximum
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted-average contractual interest rate	6.95%	0%
Interest Rate Reduction | Mortgage Loans: | Commercial real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	$ 2	$ 44
Interest Rate Reduction | Mortgage Loans: | Commercial real estate | Minimum
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted-average contractual interest rate	8.08%	10.50%
Interest Rate Reduction | Mortgage Loans: | Commercial real estate | Maximum
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted-average contractual interest rate	6%	4%
Interest Rate Reduction | Mortgage Loans: | One-to-four family first mortgage
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	$ 0	$ 0
Weighted-average Term (in years)	15 years 3 months 18 days	12 years 8 months 12 days
Interest Rate Reduction | Mortgage Loans: | One-to-four family first mortgage | Minimum
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted-average contractual interest rate	4.66%	4.84%
Interest Rate Reduction | Mortgage Loans: | One-to-four family first mortgage | Maximum
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted-average contractual interest rate	3.76%	3.97%
Interest Rate Reduction | Mortgage Loans: | Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted-average Term (in years)	3 months 18 days
Interest Rate Reduction | Mortgage Loans: | Commercial and industrial | Minimum
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted-average contractual interest rate	6.78%	0%
Interest Rate Reduction | Mortgage Loans: | Commercial and industrial | Maximum
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted-average contractual interest rate	6.50%	0%
Interest Rate Reduction | Mortgage Loans: | Other Consumer
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted-average Term (in years)	1 year 9 months 18 days
Interest Rate Reduction | Mortgage Loans: | Other Consumer | Minimum
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted-average contractual interest rate	11.01%	0%
Interest Rate Reduction | Mortgage Loans: | Other Consumer | Maximum
Financing Receivable, Troubled Debt Restructuring [Line Items]
Weighted-average contractual interest rate	4.76%	0%
Interest Rate Reduction | Other Loans: | Other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	$ 0	$ 0
Interest Rate Reduction | Other Loans: | Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	0	0
Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	14	1
Term Extension | Mortgage Loans: | Multi-family
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	0	0
Term Extension | Mortgage Loans: | Commercial real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	0	0
Term Extension | Mortgage Loans: | One-to-four family first mortgage
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	1	1
Term Extension | Other Loans: | Other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	0	0
Term Extension | Other Loans: | Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	13	0
Combination - Interest Rate Reduction & Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	2	1
Combination - Interest Rate Reduction & Term Extension | Mortgage Loans: | Multi-family
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	0	0
Combination - Interest Rate Reduction & Term Extension | Mortgage Loans: | Commercial real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	0	0
Combination - Interest Rate Reduction & Term Extension | Mortgage Loans: | One-to-four family first mortgage
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	1	1
Combination - Interest Rate Reduction & Term Extension | Other Loans: | Other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	1	0
Combination - Interest Rate Reduction & Term Extension | Other Loans: | Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized Cost	$ 0	$ 0

Loans and Leases - Performance

Loans and Leases - Performance of Loans Modified in Last 12 Months (Details) - USD ($) $ in Millions	Mar. 31, 2024	Mar. 31, 2023
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	$ 35	$ 47
Current Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	25	44
Loans 30-89 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	2	0
90+ Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	8	3
Mortgage Loans: | Multi-family
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	8
Mortgage Loans: | Multi-family | Current Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	8
Mortgage Loans: | Multi-family | Loans 30-89 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	0
Mortgage Loans: | Multi-family | 90+ Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	0
Mortgage Loans: | Commercial real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	2
Mortgage Loans: | Commercial real estate | Current Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	2
Mortgage Loans: | Commercial real estate | Loans 30-89 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	0
Mortgage Loans: | Commercial real estate | 90+ Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	0
Mortgage Loans: | One-to-four family first mortgage
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	10	3
Mortgage Loans: | One-to-four family first mortgage | Current Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	2	0
Mortgage Loans: | One-to-four family first mortgage | Loans 30-89 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	0	0
Mortgage Loans: | One-to-four family first mortgage | 90+ Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	8	3
Other Loans: | Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	14	44
Other Loans: | Commercial and industrial | Current Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	12	44
Other Loans: | Commercial and industrial | Loans 30-89 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	2	0
Other Loans: | Commercial and industrial | 90+ Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	0	$ 0
Other Loans: | Other
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	1
Other Loans: | Other | Current Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	1
Other Loans: | Other | Loans 30-89 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	0
Other Loans: | Other | 90+ Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	$ 0

Allowance for Credit Losses o_3

Allowance for Credit Losses on Loans and Leases - Schedule of Activity in the Allowance for Loan and Lease Losses (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Balance, beginning of period	$ 992	$ 393
Adjustment for Purchased PCD Loans	0	13
Charge-offs	(91)	(5)
Recoveries	10	5
Provision for (recovery of) credit losses on loans and leases	304	144
Balance, end of period	1,215	550
Mortgage
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Balance, beginning of period	756	290
Adjustment for Purchased PCD Loans		0
Charge-offs	(75)	(2)
Recoveries	1	0
Provision for (recovery of) credit losses on loans and leases	311	(5)
Balance, end of period	993	283
Other
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Balance, beginning of period	236	103
Adjustment for Purchased PCD Loans		13
Charge-offs	(16)	(3)
Recoveries	9	5
Provision for (recovery of) credit losses on loans and leases	(7)	149
Balance, end of period	$ 222	$ 267

Allowance for Credit Losses o_4

Allowance for Credit Losses on Loans and Leases - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Dec. 31, 2023	Mar. 31, 2023	Dec. 31, 2022
Financing Receivable, Allowance for Credit Losses
Allowance for credit losses on loans and leases	$ 1,215	$ 992	$ 550	$ 393
Increase in allowance for credit losses	$ (223)
Allowance for credit loss to loans held for investment ratio	1.48%	1.17%
Excluding loans with government guarantees and warehouse loans, the allowance for credit losses	1.59%	1.26%
Unfunded Loan Commitment
Financing Receivable, Allowance for Credit Losses
Allowance for credit losses on loans and leases	$ 73	$ 52

Allowance for Credit Losses o_5

Allowance for Credit Losses on Loans and Leases - Schedule of Additional Information about Nonaccrual Loans (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2024	Dec. 31, 2023
Financing Receivable, Impaired [Line Items]
Nonaccrual loans with no related allowance - Recorded Investment	$ 656	$ 294
Nonaccrual loans with no related allowance - Interest Income Recognized	3	7
Nonaccrual loans with an allowance recorded - Recorded Investment	142	134
Total nonaccrual loans - Related Allowance	48	47
Nonaccrual loans with an allowance recorded - Interest Income Recognized	0	3
Total nonaccrual loans - Recorded Investment	798	428
Total nonaccrual loans - Interest Income Recognized	3	10
Mortgage | Multi-family
Financing Receivable, Impaired [Line Items]
Nonaccrual loans with no related allowance - Recorded Investment	334	134
Nonaccrual loans with no related allowance - Interest Income Recognized	0	5
Nonaccrual loans with an allowance recorded - Recorded Investment	5	4
Total nonaccrual loans - Related Allowance	1	0
Nonaccrual loans with an allowance recorded - Interest Income Recognized	0	0
Total nonaccrual loans - Recorded Investment	339	138
Total nonaccrual loans - Interest Income Recognized	0	5
Mortgage | Commercial real estate
Financing Receivable, Impaired [Line Items]
Nonaccrual loans with no related allowance - Recorded Investment	188	53
Nonaccrual loans with no related allowance - Interest Income Recognized	3	2
Nonaccrual loans with an allowance recorded - Recorded Investment	76	75
Total nonaccrual loans - Related Allowance	17	17
Nonaccrual loans with an allowance recorded - Interest Income Recognized	0	3
Total nonaccrual loans - Recorded Investment	264	128
Total nonaccrual loans - Interest Income Recognized	3	5
Mortgage | One-to-four family first mortgage
Financing Receivable, Impaired [Line Items]
Nonaccrual loans with no related allowance - Recorded Investment	89	85
Nonaccrual loans with no related allowance - Interest Income Recognized	0	0
Nonaccrual loans with an allowance recorded - Recorded Investment	9	11
Total nonaccrual loans - Related Allowance	0	2
Nonaccrual loans with an allowance recorded - Interest Income Recognized	0	0
Total nonaccrual loans - Recorded Investment	98	96
Total nonaccrual loans - Interest Income Recognized	0	0
Mortgage | Acquisition, development, and construction
Financing Receivable, Impaired [Line Items]
Nonaccrual loans with no related allowance - Recorded Investment	0
Nonaccrual loans with no related allowance - Interest Income Recognized	0
Nonaccrual loans with an allowance recorded - Recorded Investment	3
Total nonaccrual loans - Related Allowance	2
Nonaccrual loans with an allowance recorded - Interest Income Recognized	0
Total nonaccrual loans - Recorded Investment	3
Total nonaccrual loans - Interest Income Recognized	0
Other (includes C&I)
Financing Receivable, Impaired [Line Items]
Nonaccrual loans with no related allowance - Recorded Investment	45	22
Nonaccrual loans with no related allowance - Interest Income Recognized	0	0
Nonaccrual loans with an allowance recorded - Recorded Investment	49	44
Total nonaccrual loans - Related Allowance	28	28
Nonaccrual loans with an allowance recorded - Interest Income Recognized	0	0
Total nonaccrual loans - Recorded Investment	94	66
Total nonaccrual loans - Interest Income Recognized	$ 0	$ 0

Leases - Lessor Arrangements Na

Leases - Lessor Arrangements Narrative (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Lessor, Lease, Description [Line Items]
Residual value of leased asset	$ 294	$ 280
Carrying value of net investment in leases	$ 3,289	$ 3,508
Minimum
Lessor, Lease, Description [Line Items]
Term of lease	24 months
Maximum
Lessor, Lease, Description [Line Items]
Term of lease	120 months

Leases - Components of Lease In

Leases - Components of Lease Income (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Leases [Abstract]
Interest income on lease financing	$ 38	$ 20

Leases - Components of Net Inve

Leases - Components of Net Investment in Direct Financing Leases (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Leases [Abstract]
Net investment in the lease - lease payments receivable	$ 2,960	$ 3,187
Net investment in the lease - unguaranteed residual assets	329	321
Total lease payments	$ 3,289	$ 3,508

Leases - Maturity Analysis of U

Leases - Maturity Analysis of Undiscounted Lease Receivables (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Leases [Abstract]
2024	$ 410
2025	565
2026	837
2027	509
2028	296
Thereafter	672
Total lease payments	3,289
Plus: deferred origination costs	14
Less: unearned income	(243)	$ (258)
Less: purchase accounting adjustment	(70)
Total lease finance receivables, net	$ 2,990

Leases - Lease Arrangements Nar

Leases - Lease Arrangements Narrative (Details)	Mar. 31, 2024
Leases [Abstract]
Term of contract	20 years

Leases - Component of Lease Exp

Leases - Component of Lease Expense (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Leases [Abstract]
Operating lease cost	$ 18	$ 11
Total lease cost	$ 18	$ 11

Leases - Supplemental Cash Flow

Leases - Supplemental Cash Flow Information (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 18	$ 10

Leases - Supplemental Balance S

Leases - Supplemental Balance Sheet Information (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Operating Leases:
Operating lease right-of-use assets	$ 415	$ 426
Operating lease liabilities	$ 437	$ 446
Weighted average remaining lease term	10 years 10 months 24 days	11 years 2 months 12 days
Weighted average discount rate %	4.70%	4.71%

Leases - Maturities of Lease Li

Leases - Maturities of Lease Liabilities (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Leases [Abstract]
2024	$ 54
2025	67
2026	59
2027	53
2028	46
Thereafter	290
Total lease payments	569
Less: imputed interest	(132)
Total present value of lease liabilities	$ 437	$ 446

Mortgage Servicing Rights - Cha

Mortgage Servicing Rights - Changes in the Fair Value of Residential First Mortgage MSRs (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Servicing Asset at Fair Value [Roll Forward]
Balance at beginning of period	$ 1,111
Decrease in MSR fair value due to pay-offs, pay-downs, run-off, model changes and other	(26)	$ (18)
Changes in estimates of fair value due to interest rate risk	34	(19)
Fair value of MSRs at end of period	1,092	1,034
Residential First Mortgage
Servicing Asset at Fair Value [Roll Forward]
Balance at beginning of period	1,111	1,033
Additions from loans sold with servicing retained	42	38
Reductions from sales	(69)	0
Decrease in MSR fair value due to pay-offs, pay-downs, run-off, model changes and other	(26)	(18)
Changes in estimates of fair value due to interest rate risk	$ 34	$ (19)

Mortgage Servicing Rights - Sum

Mortgage Servicing Rights - Summary of Adverse Changes to Weighted-Average Assumptions on the Fair Value of Servicing Rights (Details) - Mortgage servicing rights - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2024	Dec. 31, 2023
Actual
Option adjusted spread (percent)	5.30%	5.40%
Constant prepayment rate (as a percent)	7.70%	7.90%
Weighted average cost to service per loan	$ 68,000,000	$ 69,000,000
10% adverse change
Option adjusted spread (percent)	1,072,000,000	1,091,000,000
Constant prepayment rate (as a percent)	1,054,000,000	1,073,000,000
Weighted average cost to service per loan	1,081,000,000	1,100,000,000
20% adverse change
Option adjusted spread (percent)	1,053,000,000	1,072,000,000
Constant prepayment rate (as a percent)	1,020,000,000	1,040,000,000
Weighted average cost to service per loan	$ 1,071,000,000	$ 1,090,000,000

Mortgage Servicing Rights - S_2

Mortgage Servicing Rights - Summary of Income and Fees (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Servicing Assets at Fair Value [Line Items]
Decrease in MSR fair value due to pay-offs, pay-downs, run-off, model changes and other	$ (26)	$ (18)
Changes in fair value due to interest rate risk	34	(19)
Residential first mortgage loans
Servicing Assets at Fair Value [Line Items]
Servicing fees, ancillary income and late fees	58	56
Decrease in MSR fair value due to pay-offs, pay-downs, run-off, model changes and other	(26)	(18)
Changes in fair value due to interest rate risk	34	(19)
Gain on MSR derivatives	(44)	3
Net transaction costs	(1)	(1)
Total return (loss) included in net return on mortgage servicing rights	21	21
Residential first mortgage loans | Loan administration income on mortgage loans subserviced
Servicing Assets at Fair Value [Line Items]
Servicing fees, ancillary income and late fees	37	36
Charges on subserviced custodial balances	(36)	(29)
Other servicing charges	1	(1)
Total income (loss) on mortgage loans subserviced, included in loan administration income	2	$ 6
FDIC Serviced Loans | Loan administration income on mortgage loans subserviced
Servicing Assets at Fair Value [Line Items]
Servicing fees, ancillary income and late fees	$ 10

Variable Interest Entities (Det

Variable Interest Entities (Details) $ in Millions	3 Months Ended
	Mar. 31, 2024 USD ($) entity	Dec. 31, 2023 USD ($) entity
Private-label Securitizations [Line Items]
Number of variable interest entities | entity	0	0
Variable Interest Entity, Not Primary Beneficiary
Private-label Securitizations [Line Items]
VIE ownership percentage	5%
Fair Value	$ 176
Private Label CMOs
Private-label Securitizations [Line Items]
Fair Value	$ 176	$ 180

Borrowed Funds - Breakdown of B

Borrowed Funds - Breakdown of Borrowed Funds (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Debt Instrument
Federal Home Loan Bank advances	$ 23,750	$ 20,250
Total wholesale borrowings	25,708	20,250
Junior subordinated debentures	580	579
Subordinated notes	439	438
Total borrowed funds	26,727	21,267
Total wholesale borrowings
Debt Instrument
Total wholesale borrowings	25,708	20,250
FHLB advances
Debt Instrument
Federal Home Loan Bank advances	22,750	19,250
Federal Reserve Bank Advances
Debt Instrument
Fed funds purchased	1,000	1,000
Repurchase agreements
Debt Instrument
Fed funds purchased	1,958	0
Junior Subordinated Debt
Debt Instrument
Junior subordinated debentures	580	579
Subordinated notes
Debt Instrument
Subordinated notes	$ 439	$ 438

Borrowed Funds - Narrative (Det

Borrowed Funds - Narrative (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Debt Disclosure [Abstract]
Interest payable	$ 120	$ 50
FHLB lockout period	5 years
Junior subordinated debentures	$ 609	609
Subordinated notes	$ 439	$ 438

Borrowed Funds - Advances (Deta

Borrowed Funds - Advances (Details) $ in Millions	Mar. 31, 2024 USD ($)
Amount
2024	$ 8,100
2025	3,500
2026	4,000
2027	4,000
2028	2,400
2032	750
Total FHLB advances	$ 22,750
Weighted Average Interest Rate
2024	4.90%
2025	5.68%
2026	5.80%
2027	5.16%
2028	5.62%
2032	3.54%
Amount
2024	$ 8,600
2025	3,750
2026	4,000
2027	4,000
2028	2,400
2032	0
Total FHLB advances	$ 22,750
Weighted Average Interest Rate
2024	4.82%
2025	5.54%
2026	5.80%
2027	5.16%
2028	5.62%
2032	0%

Borrowed Funds - Junior Subordi

Borrowed Funds - Junior Subordinated Debentures (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Dec. 31, 2023
Debt Instrument
Junior subordinated debentures	$ 609	$ 609
Capital Securities Amount Outstanding	589
Fair value adjustments, business combination	(30)
Previously Reported
Debt Instrument
Junior subordinated debentures	$ 609
New York Community Capital Trust V (BONUSES Units)
Debt Instrument
Interest Rate of Capital Securities and Debentures	6%
Junior subordinated debentures	$ 147
Capital Securities Amount Outstanding	$ 141
New York Community Capital Trust X
Debt Instrument
Interest Rate of Capital Securities and Debentures	7.19%
Junior subordinated debentures	$ 124
Capital Securities Amount Outstanding	$ 120
PennFed Capital Trust III
Debt Instrument
Interest Rate of Capital Securities and Debentures	8.84%
Junior subordinated debentures	$ 31
Capital Securities Amount Outstanding	$ 30
New York Community Capital Trust XI
Debt Instrument
Interest Rate of Capital Securities and Debentures	7.21%
Junior subordinated debentures	$ 59
Capital Securities Amount Outstanding	$ 58
Flagstar Statutory Trust II
Debt Instrument
Interest Rate of Capital Securities and Debentures	8.82%
Junior subordinated debentures	$ 26
Capital Securities Amount Outstanding	$ 25
Flagstar Statutory Trust III
Debt Instrument
Interest Rate of Capital Securities and Debentures	8.83%
Junior subordinated debentures	$ 26
Capital Securities Amount Outstanding	$ 25
Flagstar Statutory Trust IV
Debt Instrument
Interest Rate of Capital Securities and Debentures	8.81%
Junior subordinated debentures	$ 26
Capital Securities Amount Outstanding	$ 25
Flagstar Statutory Trust V
Debt Instrument
Interest Rate of Capital Securities and Debentures	7.58%
Junior subordinated debentures	$ 26
Capital Securities Amount Outstanding	$ 25
Flagstar Statutory Trust VI
Debt Instrument
Interest Rate of Capital Securities and Debentures	7.58%
Junior subordinated debentures	$ 26
Capital Securities Amount Outstanding	$ 25
Flagstar Statutory Trust VII
Debt Instrument
Interest Rate of Capital Securities and Debentures	7.34%
Junior subordinated debentures	$ 51
Capital Securities Amount Outstanding	$ 50
Flagstar Statutory Trust VIII
Debt Instrument
Interest Rate of Capital Securities and Debentures	7.08%
Junior subordinated debentures	$ 26
Capital Securities Amount Outstanding	$ 25
Flagstar Statutory Trust IX
Debt Instrument
Interest Rate of Capital Securities and Debentures	7.04%
Junior subordinated debentures	$ 26
Capital Securities Amount Outstanding	$ 25
Flagstar Statutory Trust X
Debt Instrument
Interest Rate of Capital Securities and Debentures	8.09%
Junior subordinated debentures	$ 15
Capital Securities Amount Outstanding	$ 15

Borrowed Funds - Subordinated N

Borrowed Funds - Subordinated Notes (Details) - Subordinated notes - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Nov. 06, 2018
Subordinated notes maturing in 2028
Debt Instrument
Interest Rate at March 31, 2024	8.332%	5.90%
Original Issue Amount	$ 300
Subordinated notes maturing in 2028 | Secured Overnight Financing Rate (SOFR)
Debt Instrument
Variable rate on spread	3.0416%
Subordinated notes maturing in 2030
Debt Instrument
Interest Rate at March 31, 2024	4.125%
Original Issue Amount	$ 150

Pension and Other Post-Retire_3

Pension and Other Post-Retirement Benefits - Schedule of Net Benefit Costs (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Pension Benefits
Components of net periodic pension expense (credit)
Interest cost	$ 1	$ 1
Expected return on plan assets	(4)	(4)
Amortization of net actuarial loss	1	2
Net periodic (credit) expense	(2)	(1)
Post- Retirement Benefits
Components of net periodic pension expense (credit)
Interest cost	0	0
Expected return on plan assets	0	0
Amortization of net actuarial loss	0	0
Net periodic (credit) expense	$ 0	$ 0

Pension and Other Post-Retire_4

Pension and Other Post-Retirement Benefits - Narrative (Details) $ in Millions	Dec. 31, 2024 USD ($)
Post- Retirement Benefits | Forecast
Defined Benefit Plan Disclosure [Line Items]
Expected contributions to post-retirement plan, current fiscal year	$ 1

Stock-Related Benefits Plans -

Stock-Related Benefits Plans - Narrative (Details) $ / shares in Units, $ in Millions		3 Months Ended		12 Months Ended
	Mar. 06, 2024 installment shares	Mar. 31, 2024 USD ($) $ / shares shares	Mar. 31, 2023 USD ($)	Dec. 31, 2023 USD ($) shares	Dec. 31, 2022 USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-vested balance (in shares)		11,938,776
Unrecognized stock-based compensation cost for options | $		$ 40
Granted (in shares)	19,000,000	19,000,000		0
Vested (in shares)		0
Allowance for credit losses on loans and leases | $		$ 1,215	$ 550	$ 992	$ 393
Unfunded Loan Commitment
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allowance for credit losses on loans and leases | $		$ 73		$ 52
Vesting In One Year
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)	4,000,000
Vesting In Three Years
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)	15,000,000
Quarterly installments | installment	12
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-vested balance (in shares)		14,100,509		15,173,941
Granted (in shares)		1,971,715
Granted (in usd per share) | $ / shares		$ 3.98
Share-based compensation expense | $		$ 7	$ 8
Unrecognized stock-based compensation cost for options | $		$ 108
Period to be recognized		2 years 3 months 18 days
Restricted Stock | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		1 year	1 year
Restricted Stock | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		5 years	5 years
Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-vested balance (in shares)		464,652		1,218,288
Granted (in shares)		0
Granted (in usd per share) | $ / shares		$ 0
Share-based compensation expense | $		$ 1	$ 1
Unrecognized stock-based compensation cost for options | $		$ 2
Period to be recognized		1 year 7 months 6 days

Stock-Related Benefits Plans _2

Stock-Related Benefits Plans - Summary of RSA and PSUs (Details)	3 Months Ended
	Mar. 31, 2024 $ / shares shares
Number of Shares
Non-vested balance at end of period (in shares)	11,938,776
Restricted Stock
Number of Shares
Non-vested balance at beginning of period (in shares)	15,173,941
Granted (in shares)	1,971,715
Vested (in shares)	(2,269,230)
Forfeited (in shares)	(775,917)
Non-vested balance at end of period (in shares)	14,100,509
Weighted Average Grant Date Fair Value
Non-vested balance at beginning of period (in usd per share) | $ / shares	$ 10.49
Granted (in usd per share) | $ / shares	3.98
Vested (in usd per share) | $ / shares	10.84
Forfeited (in usd per share) | $ / shares	10.19
Non-vested balance at end of period (in usd per share) | $ / shares	$ 9.54
Performance Shares
Number of Shares
Non-vested balance at beginning of period (in shares)	1,218,288
Granted (in shares)	0
Vested (in shares)	0
Forfeited (in shares)	(753,636)
Non-vested balance at end of period (in shares)	464,652
Weighted Average Grant Date Fair Value
Non-vested balance at beginning of period (in usd per share) | $ / shares	$ 9.95
Granted (in usd per share) | $ / shares	0
Vested (in usd per share) | $ / shares	0
Forfeited (in usd per share) | $ / shares	10.31
Non-vested balance at end of period (in usd per share) | $ / shares	$ 9.36

Stock-Related Benefits Plans _3

Stock-Related Benefits Plans - Stock Option Activity (Details) - $ / shares		3 Months Ended	12 Months Ended
	Mar. 06, 2024	Mar. 31, 2024	Dec. 31, 2023
Number of Options
Outstanding, beginning balance (in shares)		0
Granted (in shares)	19,000,000	19,000,000	0
Vested (in shares)		0
Forfeited (in shares)		0
Outstanding, ending balance (in shares)			0
Unvested, ending balance (in shares)		19,000,000
Exercisable, ending balance (in shares)		0
Weighted- Average Exercise Price per Share
Outstanding, beginning balance (in dollars per share)		$ 0
Granted (in dollars per share)		2.31
Forfeited (in dollars per share)		0
Outstanding, ending balance (in dollars per share)		$ 2.31	$ 0

Stock-Related Benefits Plans _4

Stock-Related Benefits Plans - Exercise Price Range (Details)	3 Months Ended
	Mar. 31, 2024 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Options (in shares) | shares	19,000,000
Weighted-Average Exercise Price per Share (in dollars per share)	$ 2.31
Weighted- Average Remaining Contractual Life (in years)	10 years
$2.00
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-Based Payment Arrangement, Option, Exercise Price Range, Lower Range Limit	$ 2
Share-Based Payment Arrangement, Option, Exercise Price Range, Upper Range Limit	$ 2
Number of Options (in shares) | shares	15,000,000
Weighted-Average Exercise Price per Share (in dollars per share)	$ 2
Weighted- Average Remaining Contractual Life (in years)	10 years
$3.46
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-Based Payment Arrangement, Option, Exercise Price Range, Lower Range Limit	$ 3.46
Share-Based Payment Arrangement, Option, Exercise Price Range, Upper Range Limit	$ 3.46
Number of Options (in shares) | shares	4,000,000
Weighted-Average Exercise Price per Share (in dollars per share)	$ 3.46
Weighted- Average Remaining Contractual Life (in years)	10 years

Derivative and Hedging Activi_3

Derivative and Hedging Activities - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Dec. 31, 2023
Derivative Instruments, Gain (Loss) [Line Items]
Net unrealized gain on cash flow hedges, net of tax of $(23) and $(6), respectively	$ 61	$ 10
Interest , loans and leases held-for-sale	9
Derivative, amount of hedged item	6,000
Fair value of interest rate fair value hedging instruments	26
Amount of gain (loss), net of tax, to be reclassified during the next 12 months	106
Interest rate swaps
Derivative Instruments, Gain (Loss) [Line Items]
Notional amount	2,000
Derivative, amount of hedged item	2,000
Interest rate swaps on FHLB advances | Derivatives designated hedging instruments: | Cash flow hedging
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, notional amount	$ 5,500	$ 5,500

Derivative and Hedging Activi_4

Derivative and Hedging Activities - Notional Amount and Fair Value of Derivative Financial Instruments (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Derivatives designated hedging instruments: | Interest rate swaps on FHLB advances
Liabilities
Fair Value	$ 26	$ 2
Derivatives designated hedging instruments: | Interest rate swaps on FHLB advances | Cash flow hedging
Liabilities
Notional Amount	5,500	5,500
Derivatives designated hedging instruments: | Interest rate swaps on FHLB advances | Other Assets | Cash flow hedging
Liabilities
Fair Value	26	0
Derivatives designated hedging instruments: | Interest rate swaps on FHLB advances | Other Liabilities | Cash flow hedging
Liabilities
Fair Value	0	2
Derivatives designated hedging instruments: | Interest rate swaps on multi-family loans held for investment
Liabilities
Fair Value	0	1
Derivatives designated hedging instruments: | Interest rate swaps on multi-family loans held for investment | Fair value hedging
Liabilities
Notional Amount	2,000	2,000
Derivatives designated hedging instruments: | Interest rate swaps on multi-family loans held for investment | Other Assets | Fair value hedging
Liabilities
Fair Value	0	0
Derivatives designated hedging instruments: | Interest rate swaps on multi-family loans held for investment | Other Liabilities | Fair value hedging
Liabilities
Fair Value	0	1
Derivatives not designated as hedging instruments:
Assets
Fair Value	111	126
Liabilities
Fair Value	70	92
Derivatives not designated as hedging instruments: | Futures
Assets
Fair Value	1
Liabilities
Fair Value		1
Derivatives not designated as hedging instruments: | Futures | Other Assets
Assets
Notional Amount	1,890
Fair Value	1
Liabilities
Fair Value		0
Derivatives not designated as hedging instruments: | Futures | Other Liabilities
Assets
Fair Value	0
Liabilities
Notional Amount		2,235
Fair Value		1
Derivatives not designated as hedging instruments: | Mortgage-backed securities forwards
Assets
Fair Value	7	11
Liabilities
Fair Value	9	32
Derivatives not designated as hedging instruments: | Mortgage-backed securities forwards | Other Assets
Assets
Notional Amount	1,468	1,012
Fair Value	7	11
Liabilities
Fair Value	0	0
Derivatives not designated as hedging instruments: | Mortgage-backed securities forwards | Other Liabilities
Assets
Fair Value	0	0
Liabilities
Notional Amount	1,375	1,048
Fair Value	9	32
Derivatives not designated as hedging instruments: | Rate lock commitments | Other Assets
Assets
Notional Amount	1,847	1,490
Fair Value	11	12
Liabilities
Fair Value	0	0
Derivatives not designated as hedging instruments: | Rate lock commitments | Other Liabilities
Assets
Fair Value	0	0
Liabilities
Notional Amount	225	77
Fair Value	3	3
Derivatives not designated as hedging instruments: | Interest rate swaps and swaptions | Other Assets
Assets
Notional Amount	5,745	5,431
Fair Value	103	115
Liabilities
Fair Value	0	0
Derivatives not designated as hedging instruments: | Interest rate swaps and swaptions | Other Liabilities
Assets
Fair Value	0	0
Liabilities
Notional Amount	2,833	2,720
Fair Value	$ 61	$ 59

Derivative and Hedging Activi_5

Derivative and Hedging Activities - Derivatives Subject to a Master Netting Arrangement (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Derivatives designated hedging instruments: | Interest rate swaps on FHLB advances
Liabilities
Gross Amount	$ 26	$ 2
Gross Amounts Netted in the Statements of Condition	0	0
Net Amount Presented in the Statements of Condition	26	2
Financial Instruments	0	0
Cash Collateral Pledged (Received)	90	75
Derivatives designated hedging instruments: | Interest rate swaps on multi-family loans held for investment
Liabilities
Gross Amount	0	1
Gross Amounts Netted in the Statements of Condition	0	0
Net Amount Presented in the Statements of Condition	0	1
Financial Instruments	0	0
Cash Collateral Pledged (Received)	33	27
Derivatives not designated as hedging instruments:
Assets
Gross Amount	111	126
Gross Amounts Netted in the Statements of Condition	0	0
Net Amount Presented in the Statements of Condition	111	126
Financial Instruments	0	0
Cash Collateral Pledged (Received)	4	(35)
Liabilities
Gross Amount	70	92
Gross Amounts Netted in the Statements of Condition	0	0
Net Amount Presented in the Statements of Condition	70	92
Financial Instruments	0	0
Cash Collateral Pledged (Received)	57	102
Derivatives not designated as hedging instruments: | Mortgage-backed securities forwards
Assets
Gross Amount	7	11
Gross Amounts Netted in the Statements of Condition	0	0
Net Amount Presented in the Statements of Condition	7	11
Financial Instruments	0	0
Cash Collateral Pledged (Received)	0	(1)
Liabilities
Gross Amount	9	32
Gross Amounts Netted in the Statements of Condition	0	0
Net Amount Presented in the Statements of Condition	9	32
Financial Instruments	0	0
Cash Collateral Pledged (Received)	8	57
Derivatives not designated as hedging instruments: | Interest rate swaptions
Assets
Gross Amount	103	115
Gross Amounts Netted in the Statements of Condition	0	0
Net Amount Presented in the Statements of Condition	103	115
Financial Instruments	0	0
Cash Collateral Pledged (Received)	3	(34)
Derivatives not designated as hedging instruments: | Futures
Assets
Gross Amount	1
Gross Amounts Netted in the Statements of Condition	0	0
Net Amount Presented in the Statements of Condition	1	0
Financial Instruments	0	0
Cash Collateral Pledged (Received)	1	0
Liabilities
Gross Amount		1
Gross Amounts Netted in the Statements of Condition		0
Net Amount Presented in the Statements of Condition		1
Financial Instruments
Cash Collateral Pledged (Received)		3
Derivatives not designated as hedging instruments: | Interest rate swaps
Liabilities
Gross Amount	61	59
Gross Amounts Netted in the Statements of Condition	0	0
Net Amount Presented in the Statements of Condition	61	59
Financial Instruments	0	0
Cash Collateral Pledged (Received)	$ 49	$ 42

Derivative and Hedging Activi_6

Derivative and Hedging Activities - Cash Flow Derivative Instruments On AOCL (Details) - Swap FHLB - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized in AOCL	$ 91	$ (90)	$ 9
Amount of reclassified from AOCL to interest expense	$ (23)	$ (6)	$ (65)

Derivative and Hedging Activi_7

Derivative and Hedging Activities - Net Gain (Loss) Recognized on Designated Instruments (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Dec. 31, 2023
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized in AOCL	$ (25)	$ 18
Futures | Net return on mortgage servicing rights
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized in AOCL	2	(2)
Interest rate swaps and swaptions | Net return on mortgage servicing rights
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized in AOCL	(34)	49
Mortgage-backed securities forwards | Net return on mortgage servicing rights
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized in AOCL	(12)	10
Rate lock commitments and US Treasury futures | Net gain on loan sales
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized in AOCL	22	(37)
Interest rate swaps | Other non-interest income
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized in AOCL	$ (3)	$ (2)

Intangible Assets - Narrative (

Intangible Assets - Narrative (Details) - USD ($) $ in Millions		3 Months Ended
	Mar. 20, 2023	Mar. 31, 2024
Core Deposits
Finite-Lived Intangible Assets [Line Items]
Estimated useful life		10 years
Other Intangible Assets
Finite-Lived Intangible Assets [Line Items]
Estimated useful life		5 years 1 month 6 days
Signature Bridge Bank
Finite-Lived Intangible Assets [Line Items]
Core deposit and other intangibles	$ 464
Signature Bridge Bank | Core Deposits
Finite-Lived Intangible Assets [Line Items]
Estimated useful life	10 years

Intangible Assets - Schedule In

Intangible Assets - Schedule Intangible Assets (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 756	$ 756
Accumulated Amortization	(166)	(131)
Net Carrying Value	590	625
Core Deposits
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	700	700
Accumulated Amortization	(143)	(113)
Net Carrying Value	557	587
Other Intangible Assets
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	56	56
Accumulated Amortization	(23)	(18)
Net Carrying Value	$ 33	$ 38

Intangible Assets - Future Amor

Intangible Assets - Future Amortization (Details) $ in Millions	Mar. 31, 2024 USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
2024	$ 97
2025	107
2026	94
2027	81
2028	67
Total	$ 446

Fair Value Measures - Financial

Fair Value Measures - Financial Instruments Carried at Fair Value (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023	Mar. 31, 2023
Assets:
Loans held-for-sale	$ 981	$ 902
Mortgage servicing rights	1,092	1,111	$ 1,034
Total debt securities available for sale
Assets:
Total debt securities available for sale	9,336	9,145
Mortgage-related Debt Securities Available for Sale:
Assets:
Total debt securities available for sale	7,136	6,563
GSE certificates
Assets:
Total debt securities available for sale	1,180	1,221
GSE CMOs
Assets:
Total debt securities available for sale	5,780	5,162
Private Label CMOs
Assets:
Total debt securities available for sale	176	180
Other Debt Securities Available for Sale:
Assets:
Total debt securities available for sale	2,200	2,582
U. S. Treasury obligations
Assets:
Total debt securities available for sale	0	198
GSE debentures
Assets:
Total debt securities available for sale	1,440	1,609
Asset-backed securities
Assets:
Total debt securities available for sale	287	302
Municipal bonds
Assets:
Total debt securities available for sale	6	6
Corporate bonds
Assets:
Total debt securities available for sale	340	343
Foreign notes
Assets:
Total debt securities available for sale	35	34
Capital trust notes
Assets:
Total debt securities available for sale	92	90
Recurring
Assets:
Fair Value	9,350	9,159
Mortgage servicing rights	1,092	1,111
Total assets at fair value	11,637	11,310
Liabilities:
Total liabilities at fair value	73	95
Recurring | Acquisition, development, and construction
Assets:
Loans held-for-sale	138	123
Recurring | Commercial and industrial
Assets:
Loans held-for-sale	40	9
Recurring | Mortgage Loans: | Residential first mortgage loans
Assets:
Loans held-for-sale	803	770
Loans held-for-investment	8
Recurring | Mortgage Loans: | Acquisition, development, and construction
Assets:
Loans held-for-investment	58
Recurring | Interest rate swaps and swaptions
Assets:
Derivative assets	129	115
Liabilities:
Derivative liabilities	61	59
Recurring | Futures
Assets:
Derivative assets	1	0
Liabilities:
Derivative liabilities		1
Recurring | Rate lock commitments
Assets:
Derivative assets	11	12
Liabilities:
Derivative liabilities	3	3
Recurring | Mortgage-backed securities forwards
Assets:
Derivative assets	7	11
Liabilities:
Derivative liabilities	9	32
Recurring | Total debt securities available for sale
Assets:
Total debt securities available for sale	9,336	9,145
Recurring | Mortgage-related Debt Securities Available for Sale:
Assets:
Total debt securities available for sale	7,136	6,563
Recurring | GSE certificates
Assets:
Total debt securities available for sale	1,180	1,221
Recurring | GSE CMOs
Assets:
Total debt securities available for sale	5,780	5,162
Recurring | Private Label CMOs
Assets:
Total debt securities available for sale	176	180
Recurring | Other Debt Securities Available for Sale:
Assets:
Total debt securities available for sale	2,200	2,582
Recurring | U. S. Treasury obligations
Assets:
Total debt securities available for sale	0	198
Recurring | GSE debentures
Assets:
Total debt securities available for sale	1,440	1,609
Recurring | Asset-backed securities
Assets:
Total debt securities available for sale	287	302
Recurring | Municipal bonds
Assets:
Total debt securities available for sale	6	6
Recurring | Corporate bonds
Assets:
Total debt securities available for sale	340	343
Recurring | Foreign notes
Assets:
Total debt securities available for sale	35	34
Recurring | Capital trust notes
Assets:
Total debt securities available for sale	92	90
Recurring | Equity securities:
Assets:
Equity securities:	14	14
Recurring | Mutual funds and common stock
Assets:
Equity securities:	14	14
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1)
Assets:
Fair Value	0	198
Mortgage servicing rights	0	0
Total assets at fair value	0	198
Liabilities:
Total liabilities at fair value	0	0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Acquisition, development, and construction
Assets:
Loans held-for-sale	0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Commercial and industrial
Assets:
Loans held-for-sale	0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Mortgage Loans: | Residential first mortgage loans
Assets:
Loans held-for-sale	0	0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Interest rate swaps and swaptions
Assets:
Derivative assets	0	0
Liabilities:
Derivative liabilities	0	0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Futures
Assets:
Derivative assets	0	0
Liabilities:
Derivative liabilities
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Rate lock commitments
Assets:
Derivative assets	0	0
Liabilities:
Derivative liabilities	0	0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Mortgage-backed securities forwards
Assets:
Derivative assets	0	0
Liabilities:
Derivative liabilities	0	0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Total debt securities available for sale
Assets:
Total debt securities available for sale	0	198
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Mortgage-related Debt Securities Available for Sale:
Assets:
Total debt securities available for sale	0	0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | GSE certificates
Assets:
Total debt securities available for sale	0	0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | GSE CMOs
Assets:
Total debt securities available for sale	0	0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Private Label CMOs
Assets:
Total debt securities available for sale	0	0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Other Debt Securities Available for Sale:
Assets:
Total debt securities available for sale	0	198
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | U. S. Treasury obligations
Assets:
Total debt securities available for sale	0	198
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | GSE debentures
Assets:
Total debt securities available for sale	0	0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Asset-backed securities
Assets:
Total debt securities available for sale	0	0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Municipal bonds
Assets:
Total debt securities available for sale	0	0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Corporate bonds
Assets:
Total debt securities available for sale	0	0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Foreign notes
Assets:
Total debt securities available for sale	0	0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Capital trust notes
Assets:
Total debt securities available for sale	0	0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Equity securities:
Assets:
Equity securities:	0	0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Mutual funds and common stock
Assets:
Equity securities:	0	0
Recurring | Significant Other Observable Inputs (Level 2)
Assets:
Fair Value	9,317	8,929
Mortgage servicing rights	0	0
Total assets at fair value	10,501	9,957
Liabilities:
Total liabilities at fair value	70	92
Recurring | Significant Other Observable Inputs (Level 2) | Acquisition, development, and construction
Assets:
Loans held-for-sale	138	123
Recurring | Significant Other Observable Inputs (Level 2) | Commercial and industrial
Assets:
Loans held-for-sale	40	9
Recurring | Significant Other Observable Inputs (Level 2) | Mortgage Loans: | Residential first mortgage loans
Assets:
Loans held-for-sale	803	770
Loans held-for-investment	8
Recurring | Significant Other Observable Inputs (Level 2) | Mortgage Loans: | Acquisition, development, and construction
Assets:
Loans held-for-investment	58
Recurring | Significant Other Observable Inputs (Level 2) | Interest rate swaps and swaptions
Assets:
Derivative assets	129	115
Liabilities:
Derivative liabilities	61	59
Recurring | Significant Other Observable Inputs (Level 2) | Futures
Assets:
Derivative assets	1	0
Liabilities:
Derivative liabilities		1
Recurring | Significant Other Observable Inputs (Level 2) | Rate lock commitments
Assets:
Derivative assets	0	0
Liabilities:
Derivative liabilities	0	0
Recurring | Significant Other Observable Inputs (Level 2) | Mortgage-backed securities forwards
Assets:
Derivative assets	7	11
Liabilities:
Derivative liabilities	9	32
Recurring | Significant Other Observable Inputs (Level 2) | Total debt securities available for sale
Assets:
Total debt securities available for sale	9,303	8,915
Recurring | Significant Other Observable Inputs (Level 2) | Mortgage-related Debt Securities Available for Sale:
Assets:
Total debt securities available for sale	7,103	6,531
Recurring | Significant Other Observable Inputs (Level 2) | GSE certificates
Assets:
Total debt securities available for sale	1,180	1,221
Recurring | Significant Other Observable Inputs (Level 2) | GSE CMOs
Assets:
Total debt securities available for sale	5,780	5,162
Recurring | Significant Other Observable Inputs (Level 2) | Private Label CMOs
Assets:
Total debt securities available for sale	143	148
Recurring | Significant Other Observable Inputs (Level 2) | Other Debt Securities Available for Sale:
Assets:
Total debt securities available for sale	2,200	2,384
Recurring | Significant Other Observable Inputs (Level 2) | U. S. Treasury obligations
Assets:
Total debt securities available for sale	0
Recurring | Significant Other Observable Inputs (Level 2) | GSE debentures
Assets:
Total debt securities available for sale	1,440	1,609
Recurring | Significant Other Observable Inputs (Level 2) | Asset-backed securities
Assets:
Total debt securities available for sale	287	302
Recurring | Significant Other Observable Inputs (Level 2) | Municipal bonds
Assets:
Total debt securities available for sale	6	6
Recurring | Significant Other Observable Inputs (Level 2) | Corporate bonds
Assets:
Total debt securities available for sale	340	343
Recurring | Significant Other Observable Inputs (Level 2) | Foreign notes
Assets:
Total debt securities available for sale	35	34
Recurring | Significant Other Observable Inputs (Level 2) | Capital trust notes
Assets:
Total debt securities available for sale	92	90
Recurring | Significant Other Observable Inputs (Level 2) | Equity securities:
Assets:
Equity securities:	14	14
Recurring | Significant Other Observable Inputs (Level 2) | Mutual funds and common stock
Assets:
Equity securities:	14	14
Recurring | Significant Unobservable Inputs (Level 3)
Assets:
Fair Value	33	32
Mortgage servicing rights	1,092	1,111
Total assets at fair value	1,136	1,155
Liabilities:
Total liabilities at fair value	3	3
Recurring | Significant Unobservable Inputs (Level 3) | Acquisition, development, and construction
Assets:
Loans held-for-sale	0
Recurring | Significant Unobservable Inputs (Level 3) | Commercial and industrial
Assets:
Loans held-for-sale	0
Recurring | Significant Unobservable Inputs (Level 3) | Mortgage Loans: | Residential first mortgage loans
Assets:
Loans held-for-sale	0	0
Recurring | Significant Unobservable Inputs (Level 3) | Interest rate swaps and swaptions
Assets:
Derivative assets	0	0
Liabilities:
Derivative liabilities	0	0
Recurring | Significant Unobservable Inputs (Level 3) | Futures
Assets:
Derivative assets	0	0
Liabilities:
Derivative liabilities
Recurring | Significant Unobservable Inputs (Level 3) | Rate lock commitments
Assets:
Derivative assets	11	12
Liabilities:
Derivative liabilities	3	3
Recurring | Significant Unobservable Inputs (Level 3) | Mortgage-backed securities forwards
Assets:
Derivative assets	0	0
Liabilities:
Derivative liabilities	0	0
Recurring | Significant Unobservable Inputs (Level 3) | Total debt securities available for sale
Assets:
Total debt securities available for sale	33	32
Recurring | Significant Unobservable Inputs (Level 3) | Mortgage-related Debt Securities Available for Sale:
Assets:
Total debt securities available for sale	33	32
Recurring | Significant Unobservable Inputs (Level 3) | GSE certificates
Assets:
Total debt securities available for sale	0	0
Recurring | Significant Unobservable Inputs (Level 3) | GSE CMOs
Assets:
Total debt securities available for sale	0	0
Recurring | Significant Unobservable Inputs (Level 3) | Private Label CMOs
Assets:
Total debt securities available for sale	33	32
Recurring | Significant Unobservable Inputs (Level 3) | Other Debt Securities Available for Sale:
Assets:
Total debt securities available for sale	0	0
Recurring | Significant Unobservable Inputs (Level 3) | U. S. Treasury obligations
Assets:
Total debt securities available for sale	0	0
Recurring | Significant Unobservable Inputs (Level 3) | GSE debentures
Assets:
Total debt securities available for sale	0	0
Recurring | Significant Unobservable Inputs (Level 3) | Asset-backed securities
Assets:
Total debt securities available for sale	0	0
Recurring | Significant Unobservable Inputs (Level 3) | Municipal bonds
Assets:
Total debt securities available for sale	0	0
Recurring | Significant Unobservable Inputs (Level 3) | Corporate bonds
Assets:
Total debt securities available for sale	0	0
Recurring | Significant Unobservable Inputs (Level 3) | Foreign notes
Assets:
Total debt securities available for sale	0	0
Recurring | Significant Unobservable Inputs (Level 3) | Capital trust notes
Assets:
Total debt securities available for sale	0	0
Recurring | Significant Unobservable Inputs (Level 3) | Equity securities:
Assets:
Equity securities:	0	0
Recurring | Significant Unobservable Inputs (Level 3) | Mutual funds and common stock
Assets:
Equity securities:	$ 0	$ 0

Fair Value Measures - Roll Forw

Fair Value Measures - Roll Forward of Financial Instruments (Details) $ in Millions	3 Months Ended
	Mar. 31, 2024 USD ($)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Noninterest Income
Significant Unobservable Inputs (Level 3)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at Beginning of Year	$ 1,120
Total Gains / (Losses) Recorded in Earnings	7
Purchases / Originations	54
Sales	(69)
Settlement	0
Transfers In (Out)	21
Balance at End of Year	1,133
Significant Unobservable Inputs (Level 3) | Mortgage Servicing Rights
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at Beginning of Year	1,111
Total Gains / (Losses) Recorded in Earnings	8
Purchases / Originations	42
Sales	(69)
Settlement	0
Transfers In (Out)	0
Balance at End of Year	1,092
Significant Unobservable Inputs (Level 3) | Private Label CMOs
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at Beginning of Year	0
Total Gains / (Losses) Recorded in Earnings	0
Purchases / Originations	0
Sales	0
Settlement	0
Transfers In (Out)	33
Balance at End of Year	33
Significant Unobservable Inputs (Level 3) | Rate lock commitments
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at Beginning of Year	9
Total Gains / (Losses) Recorded in Earnings	(1)
Purchases / Originations	12
Sales
Settlement
Transfers In (Out)	(12)
Balance at End of Year	$ 8

Fair Value Measures - Quantitat

Fair Value Measures - Quantitative Information about Recurring Level 3 Fair Value Financial Instruments (Details) $ in Millions	Mar. 31, 2024 USD ($) constant_default_rate_per_loan	Dec. 31, 2023 USD ($)	Mar. 31, 2023 USD ($)
Assets:
Mortgage servicing rights | $	$ 1,092	$ 1,111	$ 1,034
Private Label CMOs
Assets:
Fair Value | $	176	180
Recurring
Assets:
Mortgage servicing rights | $	1,092	1,111
Recurring | Private Label CMOs
Assets:
Fair Value | $	176	180
Recurring | Rate lock commitments
Liabilities:
Rate lock commitments (net) | $	3	3
Significant Unobservable Inputs (Level 3) | Recurring
Assets:
Mortgage servicing rights | $	1,092	1,111
Significant Unobservable Inputs (Level 3) | Recurring | Private Label CMOs
Assets:
Fair Value | $	33	32
Significant Unobservable Inputs (Level 3) | Recurring | Rate lock commitments
Liabilities:
Rate lock commitments (net) | $	$ 3	$ 3
Significant Unobservable Inputs (Level 3) | Option adjusted spread | Minimum | Recurring | Valuation Technique, Discounted Cash Flow
Assets:
Mortgage servicing rights, measurement input	0.049
Significant Unobservable Inputs (Level 3) | Option adjusted spread | Maximum | Recurring | Valuation Technique, Discounted Cash Flow
Assets:
Mortgage servicing rights, measurement input	0.217
Significant Unobservable Inputs (Level 3) | Option adjusted spread | Weighted average | Recurring | Valuation Technique, Discounted Cash Flow
Assets:
Mortgage servicing rights, measurement input	0.053
Significant Unobservable Inputs (Level 3) | Constant prepayment rate | Minimum | Recurring | Valuation Technique, Discounted Cash Flow
Assets:
Mortgage servicing rights, measurement input	0
Significant Unobservable Inputs (Level 3) | Constant prepayment rate | Maximum | Recurring | Valuation Technique, Discounted Cash Flow
Assets:
Mortgage servicing rights, measurement input	0.100
Significant Unobservable Inputs (Level 3) | Constant prepayment rate | Weighted average | Recurring | Valuation Technique, Discounted Cash Flow
Assets:
Mortgage servicing rights, measurement input	0.077
Significant Unobservable Inputs (Level 3) | Weighted average cost to service per loan | Minimum | Recurring | Valuation Technique, Discounted Cash Flow
Assets:
Mortgage servicing rights, measurement input	65
Significant Unobservable Inputs (Level 3) | Weighted average cost to service per loan | Maximum | Recurring | Valuation Technique, Discounted Cash Flow
Assets:
Mortgage servicing rights, measurement input	90
Significant Unobservable Inputs (Level 3) | Weighted average cost to service per loan | Weighted average | Recurring | Valuation Technique, Discounted Cash Flow
Assets:
Mortgage servicing rights, measurement input	68
Significant Unobservable Inputs (Level 3) | Constant default rates | Minimum | Recurring | Valuation Technique, Discounted Cash Flow | Private Label CMOs
Assets:
Fair value, measurement input	0.0010
Significant Unobservable Inputs (Level 3) | Constant default rates | Maximum | Recurring | Valuation Technique, Discounted Cash Flow | Private Label CMOs
Assets:
Fair value, measurement input	0.0030
Significant Unobservable Inputs (Level 3) | Measurement input, expected term | Minimum | Recurring | Valuation Technique, Discounted Cash Flow | Private Label CMOs
Assets:
Fair value, measurement input	0.1150
Significant Unobservable Inputs (Level 3) | Measurement input, expected term | Maximum | Recurring | Valuation Technique, Discounted Cash Flow | Private Label CMOs
Assets:
Fair value, measurement input	0.0796
Significant Unobservable Inputs (Level 3) | Measurement Input, Origination Pull-Through | Recurring | Rate lock commitments | Valuation Technique, Consensus Pricing Model
Liabilities:
Rate lock commitments (net), measurement input	0.7180
Significant Unobservable Inputs (Level 3) | Rate lock commitments | Recurring | Rate lock commitments
Liabilities:
Rate lock commitments (net) | $	$ 8

Fair Value Measures - Assets Me

Fair Value Measures - Assets Measured at Fair Value on a Nonrecurring Basis (Details) - Nonrecurring - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Certain impaired loans	$ 236	$ 197
Other assets	50	50
Total assets at fair value	286	247
Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Certain impaired loans		0
Other assets	0	0
Total assets at fair value	0	0
Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Certain impaired loans		0
Other assets	0	0
Total assets at fair value	0	0
Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Certain impaired loans	236	197
Other assets	50	50
Total assets at fair value	$ 286	$ 247

Fair Value Measures - Carrying

Fair Value Measures - Carrying Amount and Estimated Fair Value of Financial Instruments (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Carrying Value
Financial Assets:
Cash and cash equivalents	$ 12,890	$ 11,475
FHLB and FRB stock	1,550	1,392
Loans and leases held for investment, net	81,112	83,627
Financial Liabilities:
Deposits	74,858	81,526
Borrowed funds	26,727	21,267
Estimated Fair Value
Financial Assets:
Cash and cash equivalents	12,890	11,475
FHLB and FRB stock	1,550	1,392
Loans and leases held for investment, net	76,458	79,333
Financial Liabilities:
Deposits	74,755	81,247
Borrowed funds	26,651	21,082
Estimated Fair Value | Quoted Prices in Active Markets for Identical Assets (Level 1)
Financial Assets:
Cash and cash equivalents	12,890	11,475
FHLB and FRB stock	0	0
Loans and leases held for investment, net	0	0
Financial Liabilities:
Deposits	48,095	59,972
Borrowed funds	0	0
Estimated Fair Value | Significant Other Observable Inputs (Level 2)
Financial Assets:
Cash and cash equivalents	0	0
FHLB and FRB stock	1,550	1,392
Loans and leases held for investment, net	0	0
Financial Liabilities:
Deposits	26,660	21,275
Borrowed funds	26,651	21,082
Estimated Fair Value | Significant Unobservable Inputs (Level 3)
Financial Assets:
Cash and cash equivalents	0	0
FHLB and FRB stock	0	0
Loans and leases held for investment, net	76,458	79,333
Financial Liabilities:
Deposits	0	0
Borrowed funds	$ 0	$ 0

Fair Value Measures - Changes i

Fair Value Measures - Changes in Fair Value Included in Earnings - Fair Value Option (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Fair Value Disclosures [Abstract]
Weighted-average life	7 years 21 days
Change in fair value included in earnings	$ 3	$ 28

Fair Value Measures - Differenc

Fair Value Measures - Differences Between Aggregate Fair Value and Aggregate Remaining Contractual Principal Balance Outstanding - Fair Value Option (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Fair Value, Option, Quantitative Disclosures
Unpaid Principal Balance	$ 990	$ 871
Fair Value	1,007	896
Fair Value Over / (Under) UPB	17	25
Total other performing loans
Fair Value, Option, Quantitative Disclosures
Unpaid Principal Balance	990	869
Fair Value	1,007	894
Fair Value Over / (Under) UPB	17	25
Nonaccrual loans:
Fair Value, Option, Quantitative Disclosures
Unpaid Principal Balance	0	2
Fair Value	0	2
Fair Value Over / (Under) UPB	0	0
Loans held-for-sale
Fair Value, Option, Quantitative Disclosures
Unpaid Principal Balance	923	871
Fair Value	941	896
Fair Value Over / (Under) UPB	18	25
Loans held-for-sale | Total other performing loans
Fair Value, Option, Quantitative Disclosures
Unpaid Principal Balance	923	869
Fair Value	941	894
Fair Value Over / (Under) UPB	18	25
Loans held-for-sale | Nonaccrual loans:
Fair Value, Option, Quantitative Disclosures
Unpaid Principal Balance	0	2
Fair Value	0	2
Fair Value Over / (Under) UPB	0	$ 0
Loans held-for-investment
Fair Value, Option, Quantitative Disclosures
Unpaid Principal Balance	67
Fair Value	66
Fair Value Over / (Under) UPB	(1)
Loans held-for-investment | Total other performing loans
Fair Value, Option, Quantitative Disclosures
Unpaid Principal Balance	67
Fair Value	66
Fair Value Over / (Under) UPB	(1)
Loans held-for-investment | Nonaccrual loans:
Fair Value, Option, Quantitative Disclosures
Unpaid Principal Balance	0
Fair Value	0
Fair Value Over / (Under) UPB	$ 0

Mezzanine and Stockholders Eq_3

Mezzanine and Stockholders Equity- Schedule of Preferred and Temporary Equity (Details) - USD ($)	3 Months Ended
	Mar. 31, 2024	Dec. 31, 2023	Mar. 31, 2023	Dec. 31, 2022	Nov. 23, 1993
Amount Outstanding (in millions)
Preferred stock	$ 503,000,000	$ 503,000,000
Noncumulative convertible preferred stock	595,000,000	0	$ 0	$ 0
Common stock	$ 8,000,000	$ 7,000,000
Shares Authorized
Preferred stock (in shares)	5,000,000
Common stock (in shares)	900,000,000	900,000,000
Shares Issued
Preferred stock (in shares)	515,000
Common stock (in shares)	827,123,078	744,155,791
Shares Outstanding
Preferred stock (in shares)	515,000
Common stock (in shares)	804,285,598	722,066,370
Par Value
Preferred stock (in usd per share)	$ 0.01	$ 0.01
Noncumulative convertible preferred stock (in usd per share)	0.01	0.01	$ 0.01	$ 0.01
Common stock (in usd per share)	$ 0.01	$ 0.01			$ 0.01
Liquidation Preference
Preferred Stock	$ 1,000
Preferred Stock (Par Value: $0.01)
Temporary Equity [Line Items]
Dividend rate percentage	6.375%
Noncumulative Series B Preferred Stock
Temporary Equity [Line Items]
Dividend rate percentage	13%
Amount Outstanding (in millions)
Noncumulative convertible preferred stock	$ 258,000,000
Shares Authorized
Noncumulative convertible preferred stock (in shares)	267,062
Shares Issued
Noncumulative convertible preferred stock (in shares)	192,062
Shares Outstanding
Noncumulative convertible preferred stock (in shares)	192,062
Par Value
Noncumulative convertible preferred stock (in usd per share)	$ 0.01
Liquidation Preference
Noncumulative convertible preferred stock	$ 2,000
Noncumulative Convertible Preferred Stock Series C
Temporary Equity [Line Items]
Dividend rate percentage	13%
Amount Outstanding (in millions)
Noncumulative convertible preferred stock	$ 337,000,000
Shares Authorized
Noncumulative convertible preferred stock (in shares)	523,369
Shares Issued
Noncumulative convertible preferred stock (in shares)	256,307
Shares Outstanding
Noncumulative convertible preferred stock (in shares)	249,556
Par Value
Noncumulative convertible preferred stock (in usd per share)	$ 0.01
Liquidation Preference
Noncumulative convertible preferred stock	$ 2,000
Conversion of convertible shares (in shares)	6,751
Non-Voting Common Equivalent Series D
Amount Outstanding (in millions)
Common stock	$ 0
Shares Authorized
Common stock (in shares)	315,000
Shares Issued
Common stock (in shares)	0
Shares Outstanding
Common stock (in shares)	0
Par Value
Common stock (in usd per share)	$ 0.01
Liquidation Preference
Common Stock	$ 0.0001

Mezzanine and Stockholders Eq_4

Mezzanine and Stockholders Equity - Narrative (Details)		3 Months Ended
	Mar. 17, 2027	Mar. 31, 2024 $ / shares shares	Mar. 31, 2023 $ / shares	Dec. 31, 2023 $ / shares	Dec. 31, 2022 $ / shares
Temporary Equity [Line Items]
Preferred stock, convertible, price (in USD per share) | $ / shares		$ 2.50
Dividends paid on preferred stock (in dollars per share) | $ / shares		15.94	$ 15.94
Preferred stock, par value (in usd per share) | $ / shares		0.01		$ 0.01
Noncumulative convertible preferred stock (in usd per share) | $ / shares		0.01	$ 0.01	$ 0.01	$ 0.01
Series D Preferred Stock Warrants
Temporary Equity [Line Items]
Offering price (in dollars per share) | $ / shares		$ 2,500
Warrant term		7 years
Date warrants will not be exercisable		180 days
Forecast | Secured Overnight Financing Rate (SOFR)
Temporary Equity [Line Items]
Dividend payment variable rate	0.040826
Noncumulative Series A Preferred Stock
Temporary Equity [Line Items]
Interest in share conversion ratio		0.025
Liquidation Preference Per Share (in USD per share) | $ / shares		$ 1
Preferred stock, convertible, price (in USD per share) | $ / shares		25
Dividends paid on preferred stock (in dollars per share) | $ / shares		15.94
Noncumulative Series B Preferred Stock
Temporary Equity [Line Items]
Liquidation Preference Per Share (in USD per share) | $ / shares		$ 2,000
Shares issued upon conversion (in shares) | shares		1,000
Common stock issued upon conversion (in shares) | shares		192,000,000
Dividend rate percentage		13%
Noncumulative convertible preferred stock (in usd per share) | $ / shares		$ 0.01
Noncumulative convertible preferred stock (in shares) | shares		267,062
Noncumulative Series B Preferred Stock | Minimum
Temporary Equity [Line Items]
Noncumulative convertible preferred stock (in shares) | shares		900,000,000
Noncumulative Series B Preferred Stock | Maximum
Temporary Equity [Line Items]
Noncumulative convertible preferred stock (in shares) | shares		1,700,000,000
Noncumulative Convertible Preferred Stock Series C
Temporary Equity [Line Items]
Shares issued upon conversion (in shares) | shares		1,000
Common stock issued upon conversion (in shares) | shares		249,600,000
Dividend rate percentage		13%
Noncumulative convertible preferred stock (in usd per share) | $ / shares		$ 0.01
Noncumulative convertible preferred stock (in shares) | shares		523,369
Series C Preferred Stock | Conversion of Series D NVCE Stock into Common Stock
Temporary Equity [Line Items]
Shares issued upon conversion (in shares) | shares		1
Series C Preferred Stock | Conversion Of Series B Convertible Stock Into Common Stock
Temporary Equity [Line Items]
Shares issued upon conversion (in shares) | shares		1
Preferred Stock (Par Value: $0.01)
Temporary Equity [Line Items]
Dividend rate percentage		6.375%
Series D NYCE Stock
Temporary Equity [Line Items]
Preferred stock, par value (in usd per share) | $ / shares		$ 0.01
Convertible stock (in shares) | shares		315,000,000
Series D NYCE Stock | Conversion of Series D NVCE Stock into Common Stock
Temporary Equity [Line Items]
Shares issued upon conversion (in shares) | shares		1,000