State Street (STT) 10-K 13 Feb 25 2024 FY Annual report Financial data

Cover Page

Cover Page - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Jan. 31, 2025	Jun. 28, 2024
Entity Information [Line Items]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2024
Current Fiscal Year End Date	--12-31
Document Transition Report	false
Entity File Number	001-07511
Entity Registrant Name	STATE STREET CORPORATION
Entity Incorporation, State or Country Code	MA
Entity Tax Identification Number	04-2456637
Entity Address, Address Line One	One Congress Street
Entity Address, City or Town	Boston,
Entity Address, State or Province	MA
Entity Address, Postal Zip Code	02114
City Area Code	(617)
Local Phone Number	786-3000
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	true
Document Financial Statement Error Correction [Flag]	false
Entity Shell Company	false
Entity Public Float			$ 22,090
Entity Common Stock, Shares Outstanding		288,469,096
Documents Incorporated by Reference	Portions of the following documents are incorporated by reference into Parts of this Report on Form 10-K, to the extent noted in such Parts, as indicated below: (1) The registrant’s definitive Proxy Statement for the 2025 Annual Meeting of Shareholders to be filed pursuant to Regulation 14A on or before April 30, 2025 (Part III).
Entity Central Index Key	0000093751
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	FY
Amendment Flag	false
Common Stock, $1 par value per share
Entity Information [Line Items]
Title of 12(b) Security	Common Stock, $1 par value per share
Trading Symbol	STT
Security Exchange Name	NYSE
Series G Preferred Stock, Depository Share [Member]
Entity Information [Line Items]
Title of 12(b) Security	Fixed-to-Floating Rate Non-Cumulative Perpetual Preferred Stock, Series G, without par value per share
Trading Symbol	STT.PRG
Security Exchange Name	NYSE

Audit Information

Audit Information	12 Months Ended
	Dec. 31, 2024
Auditor Information [Abstract]
Auditor Name	Ernst & Young LLP
Auditor Firm ID	42
Auditor Location	Boston, Massachusetts

Consolidated Statement of Incom

Consolidated Statement of Income - USD ($) shares in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Fee revenue:
Servicing fees	$ 5,016	$ 4,922	$ 5,087
Management fees	2,124	1,876	1,939
Foreign exchange trading services	1,401	1,265	1,376
Securities finance	438	426	416
Software and processing fees	888	811	789
Other fee revenue	289	180	(1)
Total fee revenue	10,156	9,480	9,606
Net interest income:
Interest income	11,977	9,180	4,088
Interest expense	9,054	6,421	1,544
Net interest income	2,923	2,759	2,544
Other income:
Gains (losses) from sales of available-for-sale securities, net	(79)	(294)	(2)
Total other income	(79)	(294)	(2)
Total revenue	13,000	11,945	12,148
Provision for credit losses	75	46	20
Expenses:
Compensation and employee benefits	4,697	4,744	4,428
Information systems and communications	1,829	1,703	1,630
Transaction processing services	998	957	971
Occupancy	437	426	394
Acquisition and restructuring costs	0	(15)	65
Amortization of other intangible assets	230	239	238
Other	1,339	1,529	1,075
Total expenses	9,530	9,583	8,801
Income before income tax expense	3,395	2,316	3,327
Income tax expense	708	372	553
Net income	2,687	1,944	2,774
Net income available to common shareholders -basic	2,483	1,821	2,660
Net income available to common shareholders - diluted	$ 2,483	$ 1,821	$ 2,660
Earnings per common share:
Basic (in USD per share)	$ 8.33	$ 5.65	$ 7.28
Diluted (in USD per share)	$ 8.21	$ 5.58	$ 7.19
Average common shares outstanding (in thousands):
Basic (in shares)	297,883	322,337	365,214
Diluted (in shares)	302,226	326,568	370,109
Cash dividends declared (in USD per share)	$ 2.90	$ 2.64	$ 2.40

Consolidated Statement of Compr

Consolidated Statement of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Statement of Comprehensive Income [Abstract]
Net income	$ 2,687	$ 1,944	$ 2,774
Other comprehensive income (loss), net of related taxes:
Foreign currency translation, net of related taxes of $153, ($19) and $47, respectively	(228)	261	(441)
Net unrealized gains (losses) on investment securities, net of reclassification adjustment and net of related taxes of $164, $335 and ($650), respectively	467	870	(1,767)
Net unrealized gains (losses) on cash flow hedges, net of related taxes of $0, $85 and ($133), respectively	(1)	228	(357)
Net unrealized gains (losses) on retirement plans, net of related taxes of $6, $0 and ($1), respectively	16	(2)	(13)
Other comprehensive income (loss)	254	1,357	(2,578)
Total comprehensive income	$ 2,941	$ 3,301	$ 196

Consolidated Statement of Com_2

Consolidated Statement of Comprehensive Income (Parenthetical) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Statement of Comprehensive Income [Abstract]
Foreign currency translation, Taxes	$ 153	$ (19)	$ 47
Change in net unrealized gains (losses) on available-for-sale securities, Taxes	164	335	(650)
Change in net unrealized gains (losses) on cash flow hedges, Taxes	0	85	(133)
Change in unrealized gains (losses) on retirement plans, Taxes	$ 6	$ 0	$ (1)

Consolidated Statement of Condi

Consolidated Statement of Condition - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Assets:
Cash and due from banks	$ 3,145	$ 4,047
Interest-bearing deposits with banks	112,957	87,665
Securities purchased under resale agreements	6,679	6,692
Trading account assets	768	773
Investment securities available-for-sale (less allowance for credit losses of $0 and $0)	58,895	44,526
Investment securities held-to-maturity (less allowance for credit losses of $0 and $1) (fair value of $41,906 and $51,503)	47,727	57,117
Loans (less allowance for credit losses on loans of $174 and $135)	43,026	36,496
Premises and equipment (net of accumulated depreciation of $6,461 and $6,062)	2,715	2,399
Accrued interest and fees receivable	4,034	3,806
Goodwill	7,691	7,611
Other intangible assets	1,089	1,320
Other assets	64,514	44,806
Total assets	353,240	297,258
Deposits:
Non-interest-bearing	33,180	32,569
Interest-bearing - U.S.	166,483	121,738
Interest-bearing - non-U.S.	62,257	66,663
Total deposits	261,920	220,970
Securities sold under repurchase agreements	3,681	1,867
Other short-term borrowings	9,840	3,660
Accrued expenses and other liabilities	29,201	28,123
Long-term debt	23,272	18,839
Total liabilities	327,914	273,459
Commitments, guarantees and contingencies (Notes 12 and 13)
Shareholders’ equity:
Common stock	504	504
Surplus	10,722	10,741
Retained earnings	29,582	27,957
Accumulated other comprehensive income (loss)	(2,100)	(2,354)
Treasury stock, at cost (215,113,190 and 201,935,599 shares)	(16,198)	(15,025)
Total shareholders’ equity	25,326	23,799
Total liabilities and shareholders’ equity	353,240	297,258
Series D Preferred Stock
Shareholders’ equity:
Preferred stock	0	742
Series F Preferred Stock
Shareholders’ equity:
Preferred stock	0	247
Series G Preferred Stock
Shareholders’ equity:
Preferred stock	493	493
Series H Preferred Stock
Shareholders’ equity:
Preferred stock	0	494
Series I Preferred Stock
Shareholders’ equity:
Preferred stock	1,481	0
Series J Preferred Stock
Shareholders’ equity:
Preferred stock	$ 842	$ 0

Consolidated Statement of Con_2

Consolidated Statement of Condition (Parenthetical) - USD ($)	Dec. 31, 2024	Dec. 31, 2023
Assets, Current [Abstract]
Debt securities, AFS, allowance	$ 0	$ 0
Debt securities, HTM, allowance	0	1,000,000
Investment securities held-to-maturity	41,906,000,000	51,503,000,000
Allowance for credit losses	174,000,000	135,000,000
Accumulated depreciation	$ 6,461,000,000	$ 6,062,000,000
Stockholders' Equity Attributable to Parent [Abstract]
Preferred stock, no par value (in USD per share)	$ 0	$ 0
Preferred stock authorized (in shares)	3,500,000	3,500,000
Common stock, par value (in USD per share)	$ 1	$ 1
Common stock, shares authorized (in shares)	750,000,000	750,000,000
Common stock, shares issued (in shares)	503,879,642	503,879,642
Common stock, shares outstanding (in shares)	288,766,452	301,944,043
Treasury stock, shares (in shares)	215,113,190	201,935,599
Series D Preferred Stock
Stockholders' Equity Attributable to Parent [Abstract]
Preferred stock, shares issued (in shares)	7,500
Preferred stock, shares outstanding (in shares)	7,500
Series F Preferred Stock
Stockholders' Equity Attributable to Parent [Abstract]
Preferred stock, shares issued (in shares)	2,500
Preferred stock, shares outstanding (in shares)	2,500
Series G Preferred Stock
Stockholders' Equity Attributable to Parent [Abstract]
Preferred stock, shares issued (in shares)	5,000
Preferred stock, shares outstanding (in shares)	5,000
Series H Preferred Stock
Stockholders' Equity Attributable to Parent [Abstract]
Preferred stock, shares issued (in shares)	5,000
Preferred stock, shares outstanding (in shares)	5,000
Series I Preferred Stock
Stockholders' Equity Attributable to Parent [Abstract]
Preferred stock, shares issued (in shares)	15,000
Preferred stock, shares outstanding (in shares)	15,000
Series J Preferred Stock
Stockholders' Equity Attributable to Parent [Abstract]
Preferred stock, shares issued (in shares)	8,500
Preferred stock, shares outstanding (in shares)	8,500

Consolidated Statement of Chang

Consolidated Statement of Changes in Shareholders' Equity - USD ($) $ in Millions	Total	Preferred Stock	Common Stock	Surplus	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Treasury Stock
Beginning balance at Dec. 31, 2021	$ 27,363	$ 1,976	$ 504	$ 10,787	$ 25,238	$ (1,133)	$ (10,009)
Beginning balance ( in shares) at Dec. 31, 2021			503,880,000
Treasury stock, beginning balance (in shares) at Dec. 31, 2021							137,897,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	2,774				2,774
Other comprehensive income (loss)	(2,578)					(2,578)
Common stock dividends	(871)				(871)
Preferred stock cash dividend	(112)				(112)
Common stock acquired (in shares)							19,524,000
Common stock acquired	(1,500)						$ (1,500)
Common stock awards exercised (in shares)							(2,565,000)
Common stock awards exercised	129			(43)			$ 172
Other (in shares)							(1,000)
Other	(14)			(14)	(1)		$ 1
Ending balance at Dec. 31, 2022	25,191	1,976	$ 504	10,730	27,028	(3,711)	$ (11,336)
Ending balance (in shares) at Dec. 31, 2022			503,880,000
Treasury stock, ending balance (in shares) at Dec. 31, 2022							154,855,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	1,944				1,944
Other comprehensive income (loss)	1,357					1,357
Common stock dividends	(837)				(837)
Preferred stock cash dividend	(122)				(122)
Common stock acquired (in shares)							49,212,000
Common stock acquired	(3,837)						$ (3,837)
Common stock awards exercised (in shares)							(2,133,000)
Common stock awards exercised	159			11			$ 148
Other (in shares)							2,000
Other	(56)				(56)
Ending balance at Dec. 31, 2023	$ 23,799	1,976	$ 504	10,741	27,957	(2,354)	$ (15,025)
Ending balance (in shares) at Dec. 31, 2023			503,880,000
Treasury stock, ending balance (in shares) at Dec. 31, 2023	201,935,599						201,936,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	$ 2,687				2,687
Other comprehensive income (loss)	254					254
Common stock issued	2,323	2,323
Preferred stock redeemed	(1,500)	(1,483)			(17)
Common stock dividends	(859)				(859)
Preferred stock cash dividend	(185)				(185)
Common stock acquired (in shares)							15,135,000
Common stock acquired	(1,312)						$ (1,312)
Common stock awards exercised (in shares)							(1,950,000)
Common stock awards exercised	118			(21)			$ 139
Other (in shares)							(8,000)
Other	1			2	(1)
Ending balance at Dec. 31, 2024	$ 25,326	$ 2,816	$ 504	$ 10,722	$ 29,582	$ (2,100)	$ (16,198)
Ending balance (in shares) at Dec. 31, 2024			503,880,000
Treasury stock, ending balance (in shares) at Dec. 31, 2024	215,113,190						215,113,000

Consolidated Statement of Cha_2

Consolidated Statement of Changes in Shareholders' Equity (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Statement of Stockholders' Equity [Abstract]
Cash dividends declared (in USD per share)	$ 2.90	$ 2.64	$ 2.40

Consolidated Statement of Cash

Consolidated Statement of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Operating Activities:
Net income	$ 2,687	$ 1,944	$ 2,774
Adjustments to reconcile net income to net cash provided by operating activities:
Deferred income tax (benefit)	145	(184)	(62)
Amortization of other intangible assets	230	239	238
Other non-cash adjustments for depreciation, amortization and accretion, net	375	643	918
Losses related to investment securities, net	79	294	2
Provision for credit losses	75	46	20
Change in trading account assets, net	5	(123)	108
Change in accrued interest and fees receivable, net	(224)	(359)	(156)
Change in collateral deposits, net	(12,109)	(2,246)	7,821
Change in unrealized (gains) losses on foreign exchange derivatives, net	(7,191)	2,146	(1,125)
Change in other assets, net	1,672	(1,839)	421
Change in accrued expenses and other liabilities, net	743	(128)	557
Other, net	303	257	438
Net cash (used in) provided by operating activities	(13,210)	690	11,954
Investing Activities:
Net (increase) decrease in interest-bearing deposits with banks	(25,292)	13,928	4,765
Net decrease (increase) in securities purchased under resale agreements	13	(1,477)	(2,203)
Proceeds from sales of available-for-sale securities	10,973	4,917	4,590
Proceeds from maturities of available-for-sale securities	18,517	15,703	17,254
Purchases of available-for-sale securities	(44,301)	(23,089)	(18,029)
Proceeds from maturities of held-to-maturity securities	9,330	9,474	9,817
Purchases of held-to-maturity securities	(5)	(1,582)	(8,564)
Sale of loans	246	506	1,786
Net increase in loans	(7,369)	(4,746)	(1,667)
Business acquisitions, net of cash acquired	(194)	(61)	0
Purchases of equity investments and other long-term assets	(143)	(136)	(250)
Purchases of premises and equipment, net	(926)	(816)	(734)
Other, net	(332)	117	51
Net cash (used in) provided by investing activities	(39,483)	12,738	6,816
Financing Activities:
Net (decrease) increase in time deposits	(19)	2,820	1,673
Net increase (decrease) in all other deposits	40,971	(17,311)	(21,244)
Net increase (decrease) in securities sold under repurchase agreements	1,814	690	(398)
Net increase in other short-term borrowings	6,180	1,563	1,969
Proceeds from issuance of long-term debt, net of issuance costs	6,523	6,221	3,731
Payments for long-term debt and obligations under finance leases	(2,046)	(2,545)	(1,567)
Payments for redemption of preferred stock	(1,500)	0	0
Proceeds from issuance of preferred stock, net of issuance costs	2,323	0	0
Repurchases of common stock	(1,319)	(3,781)	(1,500)
Repurchases of common stock for employee tax withholding	(83)	(95)	(123)
Payments for cash dividends	(1,033)	(970)	(972)
Other, net	(20)	57	0
Net cash provided by (used in) financing activities	51,791	(13,351)	(18,431)
Net (decrease) increase	(902)	77	339
Cash and due from banks at beginning of period	4,047	3,970	3,631
Cash and due from banks at end of period	3,145	4,047	3,970
Supplemental disclosure:
Interest paid	8,951	6,184	1,354
Income taxes paid, net	$ 451	$ 423	$ 436

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2024
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies Basis of Presentation The accounting and financial reporting policies of State Street Corporation conform to U.S. GAAP. State Street Corporation, the Parent Company, is a financial holding company headquartered in Boston, Massachusetts. Unless otherwise indicated or unless the context requires otherwise, all references in these notes to consolidated financial statements to “State Street,” “we,” “us,” “our” or similar references mean State Street Corporation and its subsidiaries on a consolidated basis, including our principal banking subsidiary, State Street Bank. We have two lines of business: Investment Servicing provides a broad range of services and market and financing solutions to institutional clients, including mutual funds, collective investment funds and other investment pools, corporate and public retirement plans, insurance companies, investment managers, foundations and endowments worldwide. Through State Street Investment Services, State Street Global Markets ® and State Street Alpha ® , we offer a full range of back- and middle-office solutions, including custody, accounting and fund administration services for traditional and alternative assets, as well as multi-asset class investments; recordkeeping, client reporting and investment book of record, transaction management, loans, cash, derivatives and collateral services; investor services operations outsourcing; performance, risk and compliance analytics; financial data management to support institutional investors; foreign exchange, brokerage and other trading services; securities finance, including prime services products; and deposit and short-term investment facilities. Together with our middle- and back-office services, CRD’s front- and middle-office technology offerings form the foundation of State Street Alpha ® . Our State Street Alpha platform combines portfolio management, trading and execution, analytics and compliance tools, and advanced data aggregation and integration with other industry platforms and providers. Included in CRD’s technology offerings are Charles River Investment Management Solution, a front-office technology offering that automates and simplifies the institutional investment process across asset classes, from portfolio management and risk analytics through trading and post-trade settlement, with integrated compliance and managed data throughout; Charles River for Private Markets, an investment management solution for institutions investing in Private Credit, Private Equity, Real Estate, Infrastructure, and Funds; and Charles River Wealth Management Solution, which provides portfolio management, trading compliance and manager/sponsor communication capabilities to wealth managers, private banks and financial advisors. As the digital asset space continues to mature, we are building solutions to service, tokenize and safekeep digital assets. Our vision is to enable core digital asset infrastructure as a trusted provider of end-to-end solutions on a secure, interoperable blockchain. Investment Management provides a comprehensive range of investment management solutions and products for our clients through State Street Global Advisors. Our investment management solutions include strategies across equity, fixed income, cash, multi-asset and alternatives; products such as SPDR® ETFs and index funds; and services including defined benefit, defined contribution, and Outsourced Chief Investment Officer. Consolidation Our consolidated financial statements include the accounts of the Parent Company and its majority- and wholly-owned and otherwise controlled subsidiaries, including State Street Bank. All material inter-company transactions and balances have been eliminated. Certain previously reported amounts have been reclassified to conform to current-year presentation. We consolidate subsidiaries in which we exercise control. Investments in unconsolidated subsidiaries, recorded in other assets, generally are accounted for under the equity method of accounting if we have the ability to exercise significant influence over the operations of the investee. For investments accounted for under the equity method, our share of income or loss is recorded in other fee revenue in our consolidated statement of income. Investments not meeting the criteria for equity-method treatment are measured at fair value through earnings, except for investments where a fair market value is not readily available, which are accounted for under the cost method of accounting. Use of Estimates The preparation of consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions in the application of certain of our significant accounting policies that may materially affect the reported amounts of assets, liabilities, equity, revenue and expenses. As a result of unanticipated events or circumstances, actual results could differ from those estimates. Foreign Currency Translation The assets and liabilities of our operations with functional currencies other than the U.S. dollar are translated at month-end exchange rates, and revenue and expenses are translated at rates that approximate average monthly exchange rates. Gains or losses from the translation of the net assets of subsidiaries with functional currencies other than the U.S. dollar, net of related taxes, are recorded in AOCI, a component of shareholders’ equity. Cash and Cash Equivalents For purposes of the consolidated statement of cash flows, cash and cash equivalents are defined as cash and due from banks. Sanctions programs or government intervention may inhibit our ability to access cash and due from banks in certain accounts. For example, as of December 31, 2024 and 2023, we held such accounts in Russia that were subject to sanctions restrictions, inclusive of $0.8 billion and $1.5 billion, respectively, with our subcustodian, which is an affiliate of a large multinational bank, and with western European-based clearing agencies, for a total of approximately $1.3 billion and $1.9 billion, respectively. The reduction in balances with our subcustodian in Russia was a result of various actions taken related to our contractual arrangements that resulted in the derecognition of certain cash balances and related client liabilities. Cash and due from banks is evaluated as part of our allowance for credit losses. Interest-Bearing Deposits with Banks Interest-bearing deposits with banks generally consist of highly liquid, short-term investments maintained at the Federal Reserve Bank and other non-U.S. central banks with original maturities at the time of purchase of one month or less. Securities Purchased Under Resale Agreements and Securities Sold Under Repurchase Agreements Securities purchased under resale agreements and sold under repurchase agreements are accounted for as collateralized financing transactions, and are recorded in our consolidated statement of condition at the amounts at which the securities will be subsequently resold or repurchased, plus accrued interest. Our policy is to take possession or control of securities underlying resale agreements either directly or through agent banks, allowing borrowers the right of collateral substitution and/or short-notice termination. We revalue these securities daily to determine if additional collateral is necessary from the borrower to protect us against credit exposure. We can use these securities as collateral for repurchase agreements. For securities sold under repurchase agreements collateralized by our investment securities portfolio, the dollar value of the securities remains in investment securities in our consolidated statement of condition. Where a master netting agreement exists or when both parties are members of a common clearing organization, resale and repurchase agreements are recorded on a net basis when specific netting criteria are met. Fee and Net Interest Income The majority of fees from investment servicing, investment management, securities finance, trading services and certain types of software and processing fees are recorded in our consolidated statement of income based on the consideration specified in contracts with our customers, and excludes taxes collected from customers subsequently remitted to governmental authorities. We recognize revenue as the services are performed or at a point in time depending on the nature of the services provided. Payments made to third party service providers are generally recognized on a gross basis when we control those services and are deemed to be the principal. Additional information about revenue from contracts with customers is provided in Note 25. Interest income on interest-earning assets and interest expense on interest-bearing liabilities are recorded in our consolidated statement of income as components of NII, and are generally based on the effective yield of the related financial asset or liability. Other Significant Policies The following table identifies our other significant accounting policies and the note and page where a detailed description of each policy can be found: Fair Value Note 2 Page 130 Investment Securities Note 3 Page 136 Loans and Allowance for Credit Losses Note 4 Page 141 Goodwill and Other Intangible Assets Note 5 Page 146 Derivative Financial Instruments Note 10 Page 150 Offsetting Arrangements Note 11 Page 154 Contingencies Note 13 Page 158 Variable Interest Entities Note 14 Page 159 Equity-Based Compensation Note 18 Page 165 Income Taxes Note 22 Page 169 Earnings Per Common Share Note 23 Page 170 Revenue from Contracts with Customers Note 25 Page 173 Recent Accounting Developments Relevant standards that were adopted during the year ended December 31, 2024: We adopted ASU 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures, effective December 31, 2024. The standard expands the reportable segment disclosure requirements, primarily through enhanced disclosures about significant segment expenses. This includes disclosure of segment expenses that are regularly provided to the CODM and other segment items that are included within each reported measure of segment profit or loss. The standard requires disclosure of the CODM’s title and position and how the CODM uses the reported measure of segment profit or loss in assessing segment performance and allocating resources. Refer to Note 24 for additional information. Relevant standards that were recently issued, but not yet adopted as of December 31, 2024 Standard Description Effective Date Effects on the financial statements or other significant matters ASU 2024-03, Income Statement (Subtopic 220-40): Reporting Comprehensive Income - Expense Disaggregation Disclosures The amendments require disclosure of information about certain costs and expenses in both interim and annual reporting periods. Specified information includes expense amounts relating to purchases of inventory, employee compensation, depreciation, intangible asset amortization, and selling expenses with the definition thereof. Annual reporting for period ending December 31, 2027 and for interim reporting in 2028 We are currently evaluating the disclosure impact of the new standard. ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures The amendments related to the rate reconciliation and income taxes paid disclosures and require disclosures of (1) consistent categories and greater disaggregation of information in the rate reconciliation and (2) income taxes paid disaggregated by jurisdiction. Additional amendments require (1) disclosures of pretax income (or loss) and income tax expense (or benefit) to be consistent with U.S. Securities and Exchange Commission regulations, and (2) remove disclosures that no longer are considered cost beneficial or relevant. Annual reporting for period ending December 31, 2025 We are currently evaluating the disclosure impact of the new standard. Additionally, we continue to evaluate other accounting standards that were recently issued, but not yet adopted as of December 31, 2024; none are expected to have a material impact to our financial statements.

Fair Value

Fair Value	12 Months Ended
	Dec. 31, 2024
Fair Value Disclosures [Abstract]
Fair Value	Fair Value Fair Value Measurements We carry trading account assets and liabilities, AFS debt securities, certain equity securities and various types of derivative financial instruments, at fair value in our consolidated statement of condition on a recurring basis. Changes in the fair values of these financial assets and liabilities are recorded either as components of our consolidated statement of income or as components of AOCI within shareholders’ equity in our consolidated statement of condition. We measure fair value for the above-described financial assets and liabilities in conformity with U.S. GAAP that governs the measurement of the fair value of financial instruments. Management believes that its valuation techniques and underlying assumptions used to measure fair value conform to the provisions of U.S. GAAP. We categorize the financial assets and liabilities that we carry at fair value based on a prescribed three-level valuation hierarchy. The hierarchy gives the highest priority to quoted prices in active markets for identical assets or liabilities (level 1) and the lowest priority to valuation methods using significant unobservable inputs (level 3). If the inputs used to measure a financial asset or liability cross different levels of the hierarchy, categorization is based on the lowest-level input that is significant to the fair-value measurement. Management’s assessment of the significance of a particular input to the overall fair-value measurement of a financial asset or liability requires judgment, and considers factors specific to that asset or liability. The three levels of the valuation hierarchy are described below. Level 1. Financial assets and liabilities with values based on unadjusted quoted prices for identical assets or liabilities in an active market. Our level 1 financial assets and liabilities primarily include positions in U.S. government securities and highly liquid U.S. and non-U.S. government fixed-income securities. Our level 1 financial assets also include actively traded exchange-traded equity securities. Level 2. Financial assets and liabilities with values based on 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 asset or liability. Level 2 inputs include the following: ▪ Quoted prices for similar assets or liabilities in active markets; ▪ Quoted prices for identical or similar assets or liabilities in non-active markets; ▪ Pricing models whose inputs are observable for substantially the full term of the asset or liability; and ▪ Pricing models whose inputs are derived principally from, or corroborated by, observable market information through correlation or other means for substantially the full term of the asset or liability. Our level 2 financial assets and liabilities primarily include non-U.S. debt securities carried in trading account assets and various types of fixed-income AFS investment securities, as well as various types of foreign exchange and interest rate derivative instruments. Fair value for our AFS investment securities categorized in level 2 is measured primarily using information obtained from independent third parties. This third-party information is subject to review by management as part of a validation process, which includes obtaining an understanding of the underlying assumptions and the level of market participant information used to support those assumptions. In addition, management compares significant assumptions used by third parties to available market information. Such information may include known trades or, to the extent that trading activity is limited, comparisons to market research information pertaining to credit expectations, execution prices and the timing of cash flows and, where information is available, back-testing. Derivative instruments categorized in level 2 predominantly represent foreign exchange contracts used in our trading activities, for which fair value is measured using discounted cash-flow techniques, with inputs consisting of observable spot and forward points, as well as observable interest rate curves. With respect to derivative instruments, we evaluate the impact on valuation of the credit risk of our counterparties. We consider factors such as the likelihood of default by our counterparties, our current and potential future net exposures and remaining maturities in determining the fair value. Valuation adjustments associated with derivative instruments were not material to those instruments for the years ended December 31, 2024 and 2023. Level 3. Financial assets and liabilities with values based on prices or valuation techniques that require inputs that are both unobservable in the market and significant to the overall measurement of fair value. These inputs reflect management’s judgment about the assumptions that a market participant would use in pricing the financial asset or liability, and are based on the best available information, some of which may be internally developed. The following provides a more detailed discussion of our financial assets and liabilities that we may categorize in level 3 and the related valuation methodology: • The fair value of certain foreign exchange contracts, primarily options, is measured using an option-pricing model. Because of a limited number of observable transactions, certain model inputs are not observable, such as implied volatility surface, but are derived from observable market information. Our level 3 financial assets and liabilities are similar in structure and profile to our level 1 and level 2 financial instruments, but they trade in less liquid markets, and the measurement of their fair value is therefore less observable. The following tables present information with respect to our financial assets and liabilities carried at fair value in our consolidated statement of condition on a recurring basis as of the dates indicated: Fair Value Measurements on a Recurring Basis As of December 31, 2024 (In millions) Quoted Market Pricing Methods Pricing Methods Impact of Netting (1) Total Net Assets: Trading account assets: U.S. government securities $ 34 $ — $ — $ 34 Non-U.S. government securities — 121 — 121 Other — 613 — 613 Total trading account assets 34 734 — 768 Available-for-sale investment securities: U.S. Treasury and federal agencies: Direct obligations 23,525 — — 23,525 Mortgage-backed securities — 10,566 — 10,566 Total U.S. Treasury and federal agencies 23,525 10,566 — 34,091 Non-U.S. debt securities: Mortgage-backed securities — 2,430 — 2,430 Asset-backed securities — 1,868 — 1,868 Non-U.S. sovereign, supranational and non-U.S. agency — 13,939 — 13,939 Other — 2,821 — 2,821 Total non-U.S. debt securities — 21,058 — 21,058 Asset-backed securities: Student loans — 90 — 90 Collateralized loan obligations — 3,453 — 3,453 Non-agency CMBS and RMBS (2) — 4 — 4 Other — 91 — 91 Total asset-backed securities — 3,638 — 3,638 State and political subdivisions — 56 — 56 Other U.S. debt securities — 52 — 52 Total available-for-sale investment securities 23,525 35,370 — 58,895 Other assets: Derivative instruments: Foreign exchange contracts 16 29,422 1 $ (18,262) 11,177 Interest rate contracts 5 23 — (23) 5 Other derivative contracts 1 — — — 1 Total derivative instruments 22 29,445 1 (18,285) 11,183 Other 20 747 — — 767 Total assets carried at fair value $ 23,601 $ 66,296 $ 1 $ (18,285) $ 71,613 Liabilities: Accrued expenses and other liabilities: Derivative instruments: Foreign exchange contracts $ — $ 28,904 $ — $ (22,527) $ 6,377 Interest rate contracts — 1 — (1) — Other derivative contracts — 219 — — 219 Total derivative instruments — 29,124 — (22,528) 6,596 Total liabilities carried at fair value $ — $ 29,124 $ — $ (22,528) $ 6,596 (1) Represents counterparty netting against level 2 financial assets and liabilities where a legally enforceable master netting agreement exists between us and the counterparty. Netting also reflects asset and liability reductions of $1.86 billion and $6.10 billion, respectively, for cash collateral received from and provided to derivative counterparties. (2) Consists entirely of non-agency CMBS. Fair Value Measurements on a Recurring Basis As of December 31, 2023 (In millions) Quoted Market Pricing Methods Pricing Methods Impact of Netting (1) Total Net Assets: Trading account assets: U.S. government securities $ 36 $ — $ — $ 36 Non-U.S. government securities — 138 — 138 Other — 599 — 599 Total trading account assets 36 737 — 773 Available-for-sale investment securities: U.S. Treasury and federal agencies: Direct obligations 8,301 — — 8,301 Mortgage-backed securities — 10,755 — 10,755 Total U.S. Treasury and federal agencies 8,301 10,755 — 19,056 Non-U.S. debt securities: Mortgage-backed securities — 1,857 — 1,857 Asset-backed securities — 2,137 — 2,137 Non-U.S. sovereign, supranational and non-U.S. agency — 15,100 — 15,100 Other — 2,735 — 2,735 Total non-U.S. debt securities — 21,829 — 21,829 Asset-backed securities: Student loans — 114 — 114 Collateralized loan obligations — 2,527 — 2,527 Non-agency CMBS and RMBS (2) — 249 — 249 Other — 90 — 90 Total asset-backed securities — 2,980 — 2,980 State and political subdivisions — 355 — 355 Other U.S. debt securities — 306 — 306 Total available-for-sale investment securities 8,301 36,225 — 44,526 Other assets: Derivative instruments: Foreign exchange contracts — 19,690 4 $ (14,387) 5,307 Interest rate contracts — 13 — (13) — Total derivative instruments — 19,703 4 (14,400) 5,307 Other 11 640 — — 651 Total assets carried at fair value $ 8,348 $ 57,305 $ 4 $ (14,400) $ 51,257 Liabilities: Accrued expenses and other liabilities: Trading account liabilities: Derivative instruments: Foreign exchange contracts $ 1 $ 19,414 $ 1 $ (11,909) $ 7,507 Interest rate contracts 4 — — — 4 Other derivative contracts — 182 — — 182 Total derivative instruments 5 19,596 1 (11,909) 7,693 Total liabilities carried at fair value $ 5 $ 19,596 $ 1 $ (11,909) $ 7,693 (1) Represents counterparty netting against level 2 financial assets and liabilities where a legally enforceable master netting agreement exists between us and the counterparty. Netting also reflects asset and liability reductions of $3.90 billion and $1.41 billion, respectively, for cash collateral received from and provided to derivative counterparties. (2) Consists entirely of non-agency CMBS. Financial Instruments Not Carried at Fair Value Estimates of fair value for financial instruments not carried at fair value in our consolidated statement of condition are generally subjective in nature, and are determined as of a specific point in time based on the characteristics of the financial instruments and relevant market information. Disclosure of fair value estimates is not required by U.S. GAAP for certain items, such as lease financing, equity-method investments, obligations for pension and other post-retirement plans, premises and equipment, other intangible assets and income-tax assets and liabilities. Accordingly, aggregate fair-value estimates presented do not purport to represent, and should not be considered representative of, our underlying “market” or franchise value. In addition, because of potential differences in methodologies and assumptions used to estimate fair values, our estimates of fair value should not be compared to those of other financial institutions. We use the following methods to estimate the fair values of our financial instruments: • For financial instruments that have quoted market prices, those quoted prices are used to estimate fair value; • For financial instruments that have no defined maturity, have a remaining maturity of 180 days or less, or reprice frequently to a market rate, we assume that the fair value of these instruments approximates their reported value, after taking into consideration any applicable credit risk; and • For financial instruments for which no quoted market prices are available, fair value is estimated using information obtained from independent third parties, or by discounting the expected cash flows using an estimated current market interest rate for the financial instrument. The generally short duration of certain of our assets and liabilities results in a significant number of financial instruments for which fair value equals or closely approximates the amount recorded in our consolidated statement of condition. These financial instruments are reported in the following captions in our consolidated statement of condition: cash and due from banks; interest-bearing deposits with banks; securities purchased under resale agreements; accrued interest and fees receivable; deposits; securities sold under repurchase agreements; federal funds purchased; and other short-term borrowings. In addition, due to the relatively short duration of certain of our loans, we consider fair value for these loans to approximate their reported value. The fair value of other types of loans, such as leveraged loans, commercial real estate loans, purchased receivables and municipal loans is estimated using information obtained from independent third parties or by discounting expected future cash flows using current rates at which similar loans would be made to borrowers with similar credit ratings for the same remaining maturities. Commitments to lend have no reported value because their terms are at prevailing market rates. The following tables present the reported amounts and estimated fair values of the financial assets and liabilities not carried at fair value, as they would be categorized within the fair value hierarchy, as of the dates indicated: Fair Value Hierarchy (In millions) Reported Amount Estimated Fair Value Quoted Market Prices in Active Markets (Level 1) Pricing Methods with Significant Observable Market Inputs (Level 2) Pricing Methods with Significant Unobservable Market Inputs (Level 3) December 31, 2024 Financial Assets: Cash and due from banks $ 3,145 $ 3,145 $ 3,145 $ — $ — Interest-bearing deposits with banks 112,957 112,957 — 112,957 — Securities purchased under resale agreements 6,679 6,679 — 6,679 — Investment securities held-to-maturity 47,727 41,906 5,354 36,552 — Net loans (1) 43,026 42,839 — 41,097 1,742 Other (2) 6,752 6,752 — 6,752 — Financial Liabilities: Deposits: Non-interest-bearing $ 33,180 $ 33,180 $ — $ 33,180 $ — Interest-bearing - U.S. 166,483 166,483 — 166,483 — Interest-bearing - non-U.S. 62,257 62,257 — 62,257 — Securities sold under repurchase agreements 3,681 3,681 — 3,681 — Other short-term borrowings 9,840 9,840 — 9,840 — Long-term debt 23,272 23,078 — 22,882 196 Other (2) 6,752 6,752 — 6,752 — (1) Includes $14 million of loans classified as held-for-sale that were measured at fair value in level 2 as of December 31, 2024. (2) Represents a portion of underlying client assets related to our prime services business, which clients have allowed us to transfer and re-pledge. Fair Value Hierarchy (In millions) Reported Amount Estimated Fair Value Quoted Market Prices in Active Markets (Level 1) Pricing Methods with Significant Observable Market Inputs (Level 2) Pricing Methods with Significant Unobservable Market Inputs (Level 3) December 31, 2023 Financial Assets: Cash and due from banks $ 4,047 $ 4,047 $ 4,047 $ — $ — Interest-bearing deposits with banks 87,665 87,665 — 87,665 — Securities purchased under resale agreements 6,692 6,692 — 6,692 — Investment securities held-to-maturity 57,117 51,503 8,409 43,094 — Net loans 36,496 36,335 — 34,308 2,027 Other (1) 6,866 6,866 — 6,866 — Financial Liabilities: Deposits: Non-interest-bearing $ 32,569 $ 32,569 $ — $ 32,569 $ — Interest-bearing - U.S. 121,738 121,738 — 121,738 — Interest-bearing - non-U.S. 66,663 66,663 — 66,663 — Securities sold under repurchase agreements 1,867 1,867 — 1,867 — Other short-term borrowings 3,660 3,660 — 3,660 — Long-term debt 18,839 18,417 — 18,216 201 Other (1) 6,866 6,866 — 6,866 — (1) Represents a portion of underlying client assets related to our prime services business, which clients have allowed us to transfer and re-pledge.

Investment Securities

Investment Securities	12 Months Ended
	Dec. 31, 2024
Investments, Debt and Equity Securities [Abstract]
Investment Securities	Investment Securities Investment securities held by us are classified as either trading account assets, AFS, HTM or equity securities held at fair value at the time of purchase and reassessed periodically, based on management’s intent. Generally, trading assets are debt and equity securities purchased in connection with our trading activities and, as such, are expected to be sold in the near term. Our trading activities typically involve active and frequent buying and selling with the objective of generating profits on short-term movements. AFS investment securities are those securities that we intend to hold for an indefinite period of time. AFS investment securities include securities utilized as part of our asset and liability management activities that may be sold in response to changes in interest rates, prepayment risk, liquidity needs or other factors. HTM securities are debt securities that management has the intent and the ability to hold to maturity. Trading assets are carried at fair value. Both realized and unrealized gains and losses on trading assets are recorded in other fee revenue in our consolidated statement of income. AFS securities are carried at fair value, with any allowance for credit losses recorded through the consolidated statement of income and after-tax net unrealized gains and losses are recorded in AOCI. Gains or losses realized on sales of AFS investment securities are computed using the specific identification method and are recorded in gains (losses) from sales of available-for-sale securities, net, in our consolidated statement of income. HTM investment securities are carried at cost, adjusted for amortization of premiums and accretion of discounts, with any allowance for credit losses recorded through the consolidated statement of income. The following table presents the amortized cost, fair value and associated unrealized gains and losses of AFS and HTM investment securities as of the dates indicated: December 31, 2024 December 31, 2023 Amortized Gross Fair Amortized Gross Fair (In millions) Gains Losses Gains Losses Available-for-sale: U.S. Treasury and federal agencies: Direct obligations $ 23,539 $ 38 $ 52 $ 23,525 $ 8,427 $ 39 $ 165 $ 8,301 Mortgage-backed securities (1) 10,699 21 154 10,566 10,870 49 164 10,755 Total U.S. Treasury and federal agencies 34,238 59 206 34,091 19,297 88 329 19,056 Non-U.S. debt securities: Mortgage-backed securities 2,426 5 1 2,430 1,861 3 7 1,857 Asset-backed securities (2) 1,865 5 2 1,868 2,148 2 13 2,137 Non-U.S. sovereign, supranational and non-U.S. agency 13,954 54 69 13,939 15,159 73 132 15,100 Other (3) 2,787 38 4 2,821 2,733 39 37 2,735 Total non-U.S. debt securities 21,032 102 76 21,058 21,901 117 189 21,829 Asset-backed securities: Student loans (4) 89 1 — 90 113 1 — 114 Collateralized loan obligations (5) 3,447 6 — 3,453 90 — — 90 Non-agency CMBS and RMBS (6) 1 3 — 4 252 — 3 249 Other 90 1 — 91 2,530 3 6 2,527 Total asset-backed securities 3,627 11 — 3,638 2,985 4 9 2,980 State and political subdivisions 56 — — 56 356 — 1 355 Other U.S. debt securities (7) 53 — 1 52 314 — 8 306 Total available-for-sale securities (8)(9) $ 59,006 $ 172 $ 283 $ 58,895 $ 44,853 $ 209 $ 536 $ 44,526 Held-to-maturity: U.S. Treasury and federal agencies: Direct obligations $ 5,417 $ — $ 55 $ 5,362 $ 8,584 $ — $ 163 $ 8,421 Mortgage-backed securities (10) 36,101 2 5,677 30,426 39,472 7 5,271 34,208 Total U.S. Treasury and federal agencies 41,518 2 5,732 35,788 48,056 7 5,434 42,629 Non-U.S. debt securities: Non-U.S. sovereign, supranational and non-U.S. agency 3,673 7 73 3,607 5,757 8 153 5,612 Total non-U.S. debt securities 3,673 7 73 3,607 5,757 8 153 5,612 Asset-backed securities: Student loans (4) 2,536 4 29 2,511 3,298 2 62 3,238 Non-agency CMBS and RMBS (11) — — — — 6 18 — 24 Total asset-backed securities 2,536 4 29 2,511 3,304 20 62 3,262 Total held-to-maturity securities (8)(12) $ 47,727 $ 13 $ 5,834 $ 41,906 $ 57,117 $ 35 $ 5,649 $ 51,503 (1) As of December 31, 2024 and 2023, the total fair value included $4.36 billion and $5.54 billion, respectively, of agency CMBS and $6.20 billion and $5.21 billion, respectively, of agency MBS. (2) As of December 31, 2024 and 2023, the fair value includes non-U.S. collateralized loan obligations of $0.70 billion and $1.02 billion, respectively. (3) As of December 31, 2024 and 2023, the fair value includes non-U.S. corporate bonds of $2.54 billion and $2.36 billion, respectively. (4) Primarily comprised of securities guaranteed by the federal government with respect to at le ast 97% of defaulted principal and accrued interest on the underlying loans. (5) Excludes collateralized loan obligations in loan form. Refer to Note 4 for additi onal information. (6) Consists entirely of non-agency RMBS as of December 31, 2024 and entirely of non-agency CMBS as of December 31, 2023. (7) As of December 31, 2024 and 2023, the fair value of U.S. corporate bonds was $0.05 billion and $0.31 billion, respectively. (8) An immaterial amount of accrued interest related to HTM and AFS investment securities was excluded from the amortized cost basis for the period ended December 31, 2024. (9) As of December 31, 2024 and 2023, we had no allowance for credit losses on AFS investment securities. (10) As of December 31, 2024 and 2023, the total amortized cost included $5.18 billion and $5.23 billion of agency CMBS, respectively. (11) Consists entirely of non-agency RMBS as of December 31, 2023. (12) As of December 31, 2024, we had no allowance for credit losses on HTM investment securities. As of December 31, 2023, we had $1 million allowance for credit losses on HTM investment securities. Aggregate investment securities with carrying values of approximately $86.70 billion and $71.30 billion as of December 31, 2024 and 2023, respectively, were designated as pledged for public and trust deposits, short-term borrowings and for other purposes as provided by law. In 2024, 2023 and 2022, proceeds from sales of AFS securities were approximately $10.97 billion, $4.92 billion and $4.59 billion, respectively, resulting in a pre-tax loss of approximately $79 million, $294 million and $2 million in 2024, 2023 and 2022, respectively. The pre-tax loss in 2024 was primarily driven by sales of U.S. Treasury, non-U.S. agency, supranational and mortgage-backed securities as part of an investment portfolio repositioning in the third quarter of 2024. The following tables present the aggregate fair values of AFS investment securities that have been in a continuous unrealized loss position for less than 12 months, and those that have been in a continuous unrealized loss position for 12 months or longer, as of the dates indicated: As of December 31, 2024 Less than 12 months 12 months or longer Total (In millions) Fair Gross Fair Gross Fair Gross Available-for-sale: U.S. Treasury and federal agencies: Direct obligations $ 8,113 $ 25 $ 2,435 $ 27 $ 10,548 $ 52 Mortgage-backed securities 3,742 59 4,360 95 8,102 154 Total U.S. Treasury and federal agencies 11,855 84 6,795 122 18,650 206 Non-U.S. debt securities: Mortgage-backed securities 730 1 225 — 955 1 Asset-backed securities 387 — 506 2 893 2 Non-U.S. sovereign, supranational and non-U.S. agency 4,695 49 2,695 20 7,390 69 Other 312 2 116 2 428 4 Total non-U.S. debt securities 6,124 52 3,542 24 9,666 76 Asset-backed securities: Student loans 12 — — — 12 — Collateralized loan obligations 684 — — — 684 — Total asset-backed securities 696 — — — 696 — State and political subdivisions — — 26 — 26 — Other U.S. debt securities 3 — 49 1 52 1 Total $ 18,678 $ 136 $ 10,412 $ 147 $ 29,090 $ 283 As of December 31, 2023 Less than 12 months 12 months or longer Total (In millions) Fair Gross Fair Gross Fair Gross Available-for-sale: U.S. Treasury and federal agencies: Direct obligations $ 333 $ 2 $ 5,416 $ 163 $ 5,749 $ 165 Mortgage-backed securities 961 6 6,512 158 7,473 164 Total U.S. Treasury and federal agencies 1,294 8 11,928 321 13,222 329 Non-U.S. debt securities: Mortgage-backed securities 424 1 719 6 1,143 7 Asset-backed securities 358 — 1,052 13 1,410 13 Non-U.S. sovereign, supranational and non-U.S. agency 3,972 7 5,788 125 9,760 132 Other 50 — 893 37 943 37 Total non-U.S. debt securities 4,804 8 8,452 181 13,256 189 Asset-backed securities: Collateralized loan obligations 183 — 1,605 6 1,788 6 Non-agency CMBS and RMBS 35 — 180 3 215 3 Total asset-backed securities 218 — 1,785 9 2,003 9 State and political subdivisions 64 — 104 1 168 1 Other U.S. debt securities 3 — 303 8 306 8 Total $ 6,383 $ 16 $ 22,572 $ 520 $ 28,955 $ 536 The following table presents the amortized cost and the fair value of contractual maturities of debt investment securities as of December 31, 2024. The maturities of certain ABS, MBS and collateralized mortgage obligations are based on expected principal payments. Actual maturities may differ from these expected maturities since certain borrowers have the right to prepay obligations with or without prepayment penalties. As of December 31, 2024 (In millions) Under 1 Year 1 to 5 Years 6 to 10 Years Over 10 Years Total Amortized Cost Fair Value Amortized Cost Fair Value Amortized Cost Fair Value Amortized Cost Fair Value Amortized Cost Fair Value Available-for-sale: U.S. Treasury and federal agencies: Direct obligations $ 8,619 $ 8,625 $ 13,485 $ 13,474 $ 1,435 $ 1,426 $ — $ — $ 23,539 $ 23,525 Mortgage-backed securities 49 49 1,824 1,819 2,517 2,493 6,309 6,205 10,699 10,566 Total U.S. Treasury and federal agencies 8,668 8,674 15,309 15,293 3,952 3,919 6,309 6,205 34,238 34,091 Non-U.S. debt securities: Mortgage-backed securities 58 58 427 427 38 38 1,903 1,907 2,426 2,430 Asset-backed securities 276 276 279 279 1,005 1,007 305 306 1,865 1,868 Non-U.S. sovereign, supranational and 2,706 2,700 10,138 10,136 1,110 1,103 — — 13,954 13,939 Other 371 371 2,314 2,346 102 104 — — 2,787 2,821 Total non-U.S. debt securities 3,411 3,405 13,158 13,188 2,255 2,252 2,208 2,213 21,032 21,058 Asset-backed securities: Student loans 23 24 — — 12 12 54 54 89 90 Collateralized loan obligations 37 37 78 78 1,874 1,877 1,458 1,461 3,447 3,453 Non-agency CMBS and RMBS — — — — — — 1 4 1 4 Other — — 90 91 — — — — 90 91 Total asset-backed securities 60 61 168 169 1,886 1,889 1,513 1,519 3,627 3,638 State and political subdivisions 30 30 26 26 — — — — 56 56 Other U.S. debt securities 30 29 23 23 — — — — 53 52 Total $ 12,199 $ 12,199 $ 28,684 $ 28,699 $ 8,093 $ 8,060 $ 10,030 $ 9,937 $ 59,006 $ 58,895 Held-to-maturity: U.S. Treasury and federal agencies: Direct obligations $ 4,557 $ 4,521 $ 851 $ 832 $ 1 $ 1 $ 8 $ 8 $ 5,417 $ 5,362 Mortgage-backed securities 134 120 1,711 1,559 3,308 2,788 30,948 25,959 36,101 30,426 Total U.S. Treasury and federal agencies 4,691 4,641 2,562 2,391 3,309 2,789 30,956 25,967 41,518 35,788 Non-U.S. debt securities: Non-U.S. sovereign, supranational and 1,409 1,397 2,044 1,998 220 212 — — 3,673 3,607 Total non-U.S. debt securities 1,409 1,397 2,044 1,998 220 212 — — 3,673 3,607 Asset-backed securities: Student loans 149 147 310 309 380 379 1,697 1,676 2,536 2,511 Total asset-backed securities 149 147 310 309 380 379 1,697 1,676 2,536 2,511 Total $ 6,249 $ 6,185 $ 4,916 $ 4,698 $ 3,909 $ 3,380 $ 32,653 $ 27,643 $ 47,727 $ 41,906 Interest income related to debt securities is recognized in our consolidated statement of income using the effective interest method, or on a basis approximating a level rate of return over the contractual or estimated life of the security. The level rate of return considers any non-refundable fees or costs, as well as purchase premiums or discounts, adjusted as prepayments occur, resulting in amortization or accretion, accordingly. Allowance for Credit Losses on Debt Securities and Impairment of AFS Securities An allowance for credit losses is recognized on HTM securities upon acquisition of the security, and on AFS securities when the fair value and expected future cash flows of the investment securities are less than their amortized cost basis. Our assessment of impairment involves an evaluation of economic and security-specific factors. Such factors are based on estimates, derived by management, which contemplate current market conditions and security-specific performance. To the extent that market conditions are worse than management’s expectations or due to idiosyncratic bond performance, the credit-related component of impairment, in particular, could increase and would be recorded in the provision for credit losses. We conduct quarterly reviews of HTM securities on a collective (pool) basis when similar risk characteristics exist to determine whether an allowance for credit losses should be recognized. HTM securities are evaluated for expected credit loss utilizing a probability of default methodology, or discounted cash flows assessed against the amortized cost of the investment security excluding accrued interest. We monitor the credit quality of the HTM investment securities using a variety of methods, including both external and internal credit ratings. With respect to certain classes of debt securities, primarily U.S. Treasuries and agency securities (mainly issued by U.S. Government entities and agencies, as well as Group of Seven sovereigns), we consider the history of credit losses, current conditions and reasonable and supportable forecasts, which may indicate that the expectation that nonpayment of the amortized cost basis is or continues to be zero. Therefore, for those securities, we do not record expected credit losses. As of December 31, 2024, we had no allowance for credit losses on HTM investment securities. As of December 31, 2023, we had $1 million allowance for credit losses on HTM investment securities. We have elected to not record an allowance on accrued interest for HTM securities. Accrued interest on these securities is reversed against interest income when payment on a security is delinquent for greater than 90 days from the date of payment. An AFS security is impaired when the current fair value of an individual security is below its amortized cost basis. An allowance for credit losses on impaired AFS securities is recorded when the present value of expected future cash flows of the investment security is less than its amortized cost basis, limited to the amount by which the security’s amortized cost basis exceeds the fair value. Investment securities will be written down to fair value through the consolidated statement of income when management intends to sell (or may be required to sell) the securities before they recover in value. Our review of AFS investment securities for credit impairment generally includes: • the identification and evaluation of securities that have indications of potential impairment, such as issuer-specific concerns, including deteriorating financial condition or bankruptcy; • the analysis of expected future cash flows of securities, based on quantitative and qualitative factors; • the analysis of the collectability of those future cash flows, including information about past events, current conditions, and reasonable and supportable forecasts; • the analysis of the underlying collateral for MBS and ABS; • the analysis of individual impaired securities, including the anticipated recovery period and the magnitude of the overall price decline; • evaluation of factors or triggers that could cause individual securities to be deemed impaired and those that would not support impairment; and • documentation of the results of these analyses. As of both December 31, 2024 and 2023, we had no allowance for credit losses on AFS investment securities. Substantially all of our investment securities portfolio is composed of debt securities. A critical component of our assessment of impairment of these debt securities is the identification of credit-impaired securities for which management does not expect to receive cash flows sufficient to recover the entire amortized cost basis of the security. As of December 31, 2024, 99% of our HTM and AFS investment portfolio is publicly rated investment grade. After a review of the investment portfolio, taking into consideration then-current economic conditions, adverse situations that might affect our ability to fully collect principal and interest, the timing of future payments, the credit quality and performance of the collateral underlying MBS and ABS and other relevant factors, management considered the aggregate decline in fair value of the investment securities portfolio and the resulting gross pre-tax unrealized losses of $6.12 billion and $6.19 billion related to 1,564 and 1,704 securities as of December 31, 2024 and 2023, respectively, to be primarily related to changes in interest rates, and not the result of any material changes in the credit characteristics of the securities. The unrealized loss has not been recognized as of December 31, 2024, as management did not have the intent to sell, nor was it more likely than not that we would be required to sell these securities before the expected recovery of their amortized cost basis.

Loans and Allowance for Credit

Loans and Allowance for Credit Losses	12 Months Ended
	Dec. 31, 2024
Receivables [Abstract]
Loans and Allowance for Credit Losses	Loans and Allowance for Credit Losses Loans are generally recorded at their principal amount outstanding, net of the allowance for credit losses, unearned income, and any net unamortized deferred loan origination fees. Loans that are classified as held-for-sale are measured at lower of cost or fair value on an individual basis. Interest income related to loans is recognized in our consolidated statement of income using the interest method, or on a basis approximating a level rate of return over the term of the loan. Fees received for providing loan commitments and letters of credit that we anticipate will result in loans typically are deferred and amortized to interest income over the term of the related loan, beginning with the initial borrowing. Fees on commitments and letters of credit are amortized to software and processing fees over the commitment period when funding is not known or expected. The following table presents our recorded investment in loans, by segment, as of the dates indicated: (In millions) December 31, 2024 December 31, 2023 Domestic (1) : Commercial and financial: Fund finance (2) $ 16,347 $ 13,697 Leveraged loans 2,742 2,412 Overdrafts 1,208 1,225 Collateralized loan obligations in loan form 50 150 Other (3) 3,220 2,512 Commercial real estate 2,842 3,069 Total domestic 26,409 23,065 Foreign (1) : Commercial and financial: Fund finance (2) 6,601 4,956 Leveraged loans 1,082 1,194 Overdrafts 772 1,047 Collateralized loan obligations in loan form 8,336 6,369 Total foreign 16,791 13,566 Total loans (4) 43,200 36,631 Allowance for credit losses (174) (135) Loans, net of allowance $ 43,026 $ 36,496 (1) Domestic and foreign categorization is based on the borrower’s country of domicile. (2) Fund finance loans include primarily $11.54 billion private equity capital call finance loans, $8.09 billion loans to real money funds and $1.44 billion loans to business development companies as of December 31, 2024, compared to $9.69 billion private equity capital call finance loans, $6.63 billion loans to real money funds and $1.05 billion loans to business development companies as of December 31, 2023. (3) Includes $3.01 billion securities finance loans and $214 million loans to municipalities as of December 31, 2024 and $2.23 billion securities finance loans, $276 million loans to municipalities and $5 million other loans as of December 31, 2023. (4) As of December 31, 2024, excluding overdrafts, floating rate loans totaled $38.46 billion and fixed rate loans totaled $2.76 billion. We have entered into interest rate swap agreements to hedge the forecasted cash flows associated with EURIBOR indexed floating-rate loans. See Note 10 for additional details. We segregate our loans into two segments: commercial and financial loans and commercial real estate loans. We further classify commercial and financial loans as fund finance loans, leveraged loans, collateralized loan obligations in loan form, overdrafts and other loans. Fund finance loans are composed of revolving credit lines providing liquidity and leverage to mutual fund and private equity fund clients. These classifications reflect their risk characteristics, their initial measurement attributes and the methods we use to monitor and assess credit risk. Certain loans are pledged as collateral for access to the Federal Reserve’s discount window. As of December 31, 2024 and 2023, the loans pledged as collateral totaled $13.90 billion and $13.00 billion, respectively. We generally place loans on non-accrual status once principal or interest payments are 90 days contractually past due, or earlier if management determines that full collection is not probable. Loans 90 days past due, but considered both well-secured and in the process of collection, may be excluded from non-accrual status. When we place a loan on non-accrual status, the accrual of interest is discontinued and previously recorded but unpaid interest is reversed and generally charged against interest income. For loans on non-accrual status, income is recognized on a cash basis after recovery of principal, if and when interest payments are received. Loans may be removed from non-accrual status when repayment is reasonably assured and performance under the terms of the loan has been demonstrated. As of December 31, 2024, we had two loans totaling $191 million on non-accrual status, of which one loan totaling $101 million was more than 90 days contractually past due. As of December 31, 2023, we had three loans totaling $70 million on non-accrual status. In 2024, we purchased $3.72 billion of collateralized loan obligations in loan form, which were all investment grade as of December 31, 2024. We sold $300 million of loans in 2024. We recorded a charge-off against the allowance for these loans of $37 million in 2024. Allowance for Credit Losses We recognize an allowance for credit losses in accordance with ASC 326 for financial assets held at amortized cost and off-balance sheet commitments. The allowance for credit losses is reviewed on a regular basis, and any provision for credit losses is recorded to reflect the amount necessary to maintain the allowance for expected credit losses at a level which represents what management does not expect to recover due to expected credit losses. For additional discussion on the allowance for credit losses for investment securities, please refer to Note 3. When the allowance is recorded, a provision for credit loss expense is recognized in net income. The allowance for credit losses for financial assets (excluding investment securities, as discussed in Note 3) represents the portion of the amortized cost basis, including accrued interest for financial assets held at amortized cost, which management does not expect to recover due to expected credit losses and is presented on the statement of condition as an offset to the amortized cost basis. The accrued interest balance is presented separately on the statement of condition within accrued interest and fees receivable. The allowance for off-balance sheet commitments is presented within other liabilities. Loans are charged off to the allowance for credit losses in the reporting period in which either an event occurs that confirms the existence of a loss on a loan, including a sale of a loan below its carrying value, or a portion of a loan is determined to be uncollectible. The allowance for credit losses may be determined using various methods, including discounted cash flow methods, loss-rate methods, probability-of-default methods, and other quantitative or qualitative methods as determined by us. The method used to estimate expected credit losses may vary depending on the type of financial asset, our ability to predict the timing of cash flows, and the information available to us. The allowance for credit losses as reported in our consolidated statement of condition is adjusted by the provision for credit losses, which is reported in earnings, and reduced by the charge-off of principal amounts, net of recoveries. We measure expected credit losses of financial assets on a collective (pool) basis when similar risk characteristics exist. Each reporting period, we assess whether the assets in the pool continue to display similar risk characteristics. For a financial asset that does not share risk characteristics with other assets, expected credit losses are measured separately using one or more of the methods noted above. As of December 31, 2024, we had 4 loans totaling $48 million in the commercial and financial segment and 5 loans totaling $402 million in the commercial real estate segment that no longer met the similar risk characteristics of their collective pool. As of December 31, 2024, $91 million of our allowance for credit losses was related to these loans. When the asset is collateral-dependent, which means when the borrower is experiencing financial difficulty and repayment is expected to be provided substantially through the operation or sale of the collateral, the allowance for credit losses are determined based on the fair value of the collateral, adjusted for the estimated costs to sell. Determining the appropriateness of the allowance is complex and requires judgment by management about the effect of matters that are inherently uncertain. In future periods, factors and forecasts then prevailing may result in significant changes in the allowance for credit losses in those future periods. We estimate credit losses over the contractual life of the financial asset, while factoring in prepayment activity, where supported by data, over a three year reasonable and supportable forecast period. We utilize a baseline, upside and downside scenario which are applied based on a probability weighting, in order to better reflect management’s expectation of expected credit losses given existing market conditions and the changes in the economic environment. The multiple scenarios are based on a three year horizon (or less depending on contractual maturity) and then revert linearly over a two year period to a ten-year historical average thereafter. The contractual term excludes expected extensions, renewals and modifications, but includes prepayment assumptions where applicable. As part of our allowance methodology, we establish qualitative reserves to address any risks inherent in our portfolio that are not addressed through our quantitative reserve assessment. These factors may relate to, among other things, legislation changes or new regulation, credit concentration, loan markets, scenario weighting and overall model limitations. The qualitative adjustments are applied to our portfolio of financial instruments under the existing governance structure and are inherently judgmental. Credit Quality Credit quality for financial assets held at amortized cost is continuously monitored by management and is reflected within the allowance for credit losses. We use an internal risk-rating system to assess our risk of credit loss for each loan. This risk-rating process incorporates the use of risk-rating tools in conjunction with management judgment. Qualitative and quantitative inputs are captured in a systematic manner, and following a formal review and approval process, an internal credit rating based on our credit scale is assigned. When computing allowance levels, credit loss assumptions are estimated using models that categorize asset pools based on loss history, delinquency status and other credit trends and risk characteristics, including current conditions and reasonable and supportable forecasts about the future. Determining the appropriateness of the allowance is complex and requires judgment by management about the effect of matters that are inherently uncertain. In future periods, evaluations of the overall asset portfolio, in light of the factors and forecasts then prevailing, may result in significant changes in the allowance and credit loss expense in those future periods. Credit quality is assessed and monitored by evaluating various attributes in order to enable timely detection of any concerns with the customer’s credit rating. The results of those evaluations are utilized in underwriting new loans and transactions with counterparties and in our process for estimation of expected credit losses. In assessing the risk rating assigned to each individual loan, among the factors considered are the borrower's debt capacity, collateral coverage, payment history and delinquency experience, financial flexibility and earnings strength, the expected amounts and source of repayment, the level and nature of contingencies, if any, and the industry and geography in which the borrower operates. These factors are based on an evaluation of historical and current information, and involve subjective assessment and interpretation. Credit counterparties are evaluated and risk-rated on an individual basis at least annually. Management considers the ratings to be current as of December 31, 2024. Our internal risk rating methodology assigns risk ratings to counterparties ranging from Investment Grade, Speculative, Special Mention, Substandard, Doubtful and Loss. • Investment Grade: Counterparties with strong credit quality and low expected credit risk and probability of default. Approximately 88% of our loans were rated as investment grade as of December 31, 2024 with external credit ratings, or equivalent, of “BBB-” or better. • Speculative: Counterparties that have the ability to repay but face significant uncertainties, such as adverse business or financial circumstances that could affect credit risk or economic downturns. Loans to counterparties rated as speculative account for approximately 11% of our loans as of December 31, 2024, and are concentrated in leveraged loans. Approximately 91% of those leveraged loans have an external credit rating, or equivalent, of “BB” or “B” as of December 31, 2024. • Special Mention: Counterparties with potential weaknesses that, if uncorrected, may result in deterioration of repayment prospects. • Substandard: Counterparties with well-defined weakness that jeopardizes repayment with the possibility we will sustain some loss. • Doubtful: Counterparties with well-defined weakness which make collection or liquidation in full highly questionable and improbable. • Loss: Counterparties which are uncollectible or have little value. The following tables present our recorded loans to counterparties by risk rating, as noted above, as of the dates indicated: December 31, 2024 Commercial and Financial Commercial Real Estate Total Loans (In millions) Investment grade $ 35,831 $ 1,969 $ 37,800 Speculative 4,278 409 4,687 Special mention 187 62 249 Substandard 48 211 259 Doubtful — 191 191 Total (1)(2) $ 40,344 $ 2,842 $ 43,186 December 31, 2023 Commercial and Financial Commercial Real Estate Total Loans (In millions) Investment grade $ 29,737 $ 2,287 $ 32,024 Speculative 3,546 449 3,995 Special mention 242 62 304 Substandard 14 224 238 Doubtful 23 47 70 Total (1) $ 33,562 $ 3,069 $ 36,631 (1) Loans include $1.98 billion and $2.27 billion of overdrafts as of December 31, 2024 and 2023, respectively. Overdrafts are short-term in nature and do not present a significant credit risk to us. As of December 31, 2024, $1.84 billion overdrafts were investment grade and $0.14 billion overdrafts were speculative. (2) Total does not include $14 million of loans classified as held-for-sale as of December 31, 2024. Financial assets held at amortized cost that are not loans are disaggregated based on product type. This includes our fees receivable balance, which have had no his tory of credit losses, and are evaluated collectively as a pool. Securities purchased under a resale agreement and securities-financing within our principal business utilize the collateral maintenance provisions included within ASC 326. An allowance for credit losses is recognized for any remaining exposure based on counterparty type. The allowance for credit losses for off-balance sheet credit exposures, recorded in accrued expenses and other liabilities in our consolidated statement of condition, represents management’s estimate of credit losses primarily in outstanding letters and lines of credit and other credit-enhancement facilities provided to our clients and outstanding as of the balance sheet date. The allowance is evaluated quarterly by management. Factors considered in evaluating the appropriate level of this allowance are similar to those considered with respect to the allowance for credit losses on financial assets held at amortized cost. Provisions to maintain the allowance at a level considered by us to be appropriate to absorb estimated credit losses in outstanding facilities are recorded in the provision for credit losses in our consolidated statement of income. The following table presents the amortized cost basis, by year of origination and credit quality indicator as of December 31, 2024. For origination years before the fifth annual period, we present the aggregate amortized cost basis of loans. For purchased loans, the date of issuance is used to determine the year of origination, not the date of acquisition. For modified, extended or renewed lending arrangements, we evaluate whether a credit event has occurred which would consider the loan to be a new arrangement. (In millions) 2024 2023 2022 2021 2020 Prior Revolving Loans Total (1) Domestic loans: Commercial and financial: Risk Rating: Investment grade $ 1,946 $ 223 $ 89 $ 47 $ 6 $ 197 $ 18,044 $ 20,552 Speculative 1,834 173 154 387 53 155 136 2,892 Special mention 47 10 — 54 — — — 111 Substandard — — 12 — — — — 12 Total commercial and financing $ 3,827 $ 406 $ 255 $ 488 $ 59 $ 352 $ 18,180 $ 23,567 Commercial real estate: Risk Rating: Investment grade $ 41 $ 63 $ 488 $ 278 $ 128 $ 971 $ — $ 1,969 Speculative — 153 20 69 100 67 — 409 Special mention — — — — — 62 — 62 Substandard — — — — — 211 — 211 Doubtful — — — — — 191 — 191 Total commercial real estate $ 41 $ 216 $ 508 $ 347 $ 228 $ 1,502 $ — $ 2,842 Non-U.S. loans: Commercial and financial: Risk Rating: Investment grade $ 4,243 $ 1,796 $ 1,152 $ 2,187 $ — $ — $ 5,901 $ 15,279 Speculative 607 174 44 246 46 43 226 1,386 Special mention — 35 26 15 — — — 76 Substandard — — — 36 — — — 36 Total commercial and financing $ 4,850 $ 2,005 $ 1,222 $ 2,484 $ 46 $ 43 $ 6,127 $ 16,777 Total loans (2) $ 8,718 $ 2,627 $ 1,985 $ 3,319 $ 333 $ 1,897 $ 24,307 $ 43,186 (1) Any reserve associated with accrued interest is not material. As of December 31, 2024, accrued interest receivable of $327 million included in the amortized cost basis of loans has been excluded from the amortized cost basis within this table. (2) Total does not include $14 million of loans classified as held-for-sale as of December 31, 2024. The following table presents the amortized cost basis, by year of origination and credit quality indicator as of December 31, 2023: (In millions) 2023 2022 2021 2020 2019 Prior Revolving Loans Total (1) Domestic loans: Commercial and financial: Risk Rating: Investment grade $ 1,399 $ 120 $ 199 $ 8 $ 272 $ 5 $ 15,476 $ 17,479 Speculative 615 285 747 149 291 141 81 2,309 Special mention — 4 164 — 16 — — 184 Doubtful 5 — 18 — — — — 23 Total commercial and financing $ 2,019 $ 409 $ 1,128 $ 157 $ 579 $ 146 $ 15,557 $ 19,995 Commercial real estate: Risk Rating: Investment grade $ 216 $ 500 $ 498 $ 100 $ 375 $ 598 $ — $ 2,287 Speculative — 20 31 50 49 299 — 449 Special mention — — — — 22 40 — 62 Substandard — — — — 95 129 — 224 Doubtful — — — — — 47 — 47 Total commercial real estate $ 216 $ 520 $ 529 $ 150 $ 541 $ 1,113 $ — $ 3,069 Non-U.S. loans: Commercial and financial: Risk Rating: Investment grade $ 2,943 $ 1,956 $ 2,518 $ — $ — $ — $ 4,841 $ 12,258 Speculative 394 135 481 88 109 18 12 1,237 Special mention — — 29 29 — — — 58 Substandard — — — — — 14 — 14 Total commercial and financing $ 3,337 $ 2,091 $ 3,028 $ 117 $ 109 $ 32 $ 4,853 $ 13,567 Total loans $ 5,572 $ 3,020 $ 4,685 $ 424 $ 1,229 $ 1,291 $ 20,410 $ 36,631 (1) Any reserve associated with accrued interest is not material. As of December 31, 2023, accrued interest receivable of $318 million included in the amortized cost basis of loans has been excluded from the amortized cost basis within this table. The following tables present the activity in the allowance for credit losses by portfolio and class for the years ended December 31, 2024 and 2023: Year End December 31, 2024 Commercial and Financial (In millions) Leveraged Loans Other Loans (1) Commercial Real Estate Held-to-Maturity Securities Off-Balance Sheet Commitments Total Allowance for credit losses: Beginning balance $ 72 $ 3 $ 60 $ 1 $ 14 $ 150 Provision 13 1 67 (1) (5) 75 Charge-offs (2) (17) — (25) — — (42) Ending balance $ 68 $ 4 $ 102 $ — $ 9 $ 183 (1) Includes $3 million allowance for credit losses on Fund Finance loans and $1 million on other loans. (2) Related to the sale of commercial real estate and leveraged loans in 2024. Year Ended December 31, 2023 Commercial and Financial (In millions) Leveraged Loans Other Loans (1) Commercial Real Estate Available-for-sale securities Held-to-Maturity Securities Off-Balance Sheet Commitments Total Allowance for credit losses: Beginning balance $ 73 $ 4 $ 19 $ 2 $ — $ 23 $ 121 Provision 16 (1) 41 (2) 1 (9) 46 Charge-offs (2) (17) — — — — — (17) Ending balance $ 72 $ 3 $ 60 $ — $ 1 $ 14 $ 150 (1) Includes $3 million allowance for credit losses on Fund Finance loans and $1 million on other loans. (2) Related to the sale of leveraged loans in 2023. Loans are reviewed on a regular basis, and any provisions for credit losses that are recorded reflect management’s estimate of the amount necessary to maintain the allowance for loan losses at a level considered appropriate to absorb expected credit losses in the loan portfolio. In 2024, we recorded a $75 million provision for credit losses, primarily reflecting an increase in loan loss reserves associated with certain commercial real estate and leveraged loans, compared to $46 million in 2023. Allowance estimates remain subject to continued model and economic uncertainty and management may use qualitative adjustments in the allowance estimates. If future data and forecasts deviate relative to the forecasts utilized to determine our allowance for credit losses as of December 31, 2024, or if credit risk migration is higher or lower than forecasted for reasons independent of the economic forecast, our allowance for credit losses will also change.

Goodwill and Other Intangible A

Goodwill and Other Intangible Assets	12 Months Ended
	Dec. 31, 2024
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Other Intangible Assets	Goodwill and Other Intangible Assets Goodwill represents the excess of the cost of an acquisition over the fair value of the net tangible and other intangible assets acquired. Other intangible assets represent purchased long-lived intangible assets, primarily client relationships, that can be distinguished from goodwill because of contractual rights or because the asset can be exchanged on its own or in combination with a related contract, asset or liability. Goodwill is not amortized, but is reviewed for impairment annually or more frequently if circumstances arise or events occur that indicate an impairment of the carrying amount may exist. Other intangible assets, which are subject to evaluation for impairment, are mainly related to client relationships, which are amortized on a straight-line basis over periods ranging from five three sixteen Impairment of goodwill is deemed to exist if the carrying value of a reporting unit, including its allocation of goodwill and other intangible assets, exceeds its estimated fair value. Impairment of other intangible assets is deemed to exist if the balance of the other intangible asset exceeds the cumulative expected undiscounted net cash inflows related to the asset over its remaining estimated useful life. If these reviews determine that goodwill or other intangible assets are impaired, the value of the goodwill or the other intangible asset is written down through a charge to other expenses in our consolidated statement of income. There wer e no impairments to goodwill or other intangible assets in 2024, 2023 and 2022. The following table presents changes in the carrying amount of goodwill during the periods indicated for each of our goodwill reporting units: (In millions) Investment Investment Total Goodwill: Ending balance December 31, 2022 $ 7,232 $ 263 $ 7,495 Acquisitions 44 — 44 Foreign currency translation 70 2 72 Ending balance December 31, 2023 7,346 265 7,611 Acquisitions (1) 189 — 189 Foreign currency translation (107) (2) (109) Ending balance December 31, 2024 $ 7,428 $ 263 $ 7,691 (1) Investment Servicing includes the impact of the consolidation of one of our joint ventures in India. The following table presents changes in the net carrying amount of other intangible assets during the periods indicated: (In millions) Investment Investment Total Other intangible assets: Ending balance December 31, 2022 $ 1,495 $ 49 $ 1,544 Amortization (217) (22) (239) Foreign currency translation 15 — 15 Ending balance December 31, 2023 1,293 27 1,320 Acquisitions 7 13 20 Amortization (216) (14) (230) Foreign currency translation (21) — (21) Ending balance December 31, 2024 $ 1,063 $ 26 $ 1,089 The following tables present the gross carrying amount, accumulated amortization and net carrying amount of other intangible assets by type as of the dates indicated: December 31, 2024 Gross Carrying Amount Accumulated Amortization Net Carrying Amount (In millions) Other intangible assets: Client relationships $ 2,706 $ (1,919) $ 787 Technology 401 (252) 149 Core deposits 677 (540) 137 Other 95 (79) 16 Total $ 3,879 $ (2,790) $ 1,089 December 31, 2023 Gross Carrying Amount Accumulated Amortization Net Carrying Amount (In millions) Other intangible assets: Client relationships $ 2,761 $ (1,808) $ 953 Technology 402 (216) 186 Core deposits 690 (516) 174 Other 85 (78) 7 Total $ 3,938 $ (2,618) $ 1,320 Amortization expense related to other intangible assets was $230 million, $239 million and $238 million in 2024, 2023 and 2022, respectively. Expected future amortization expense for other intangible assets recorded as of December 31, 2024 is as follows: (In millions) Future Amortization Years Ended December 31, 2025 $ 225 2026 202 2027 168 2028 122 2029 64

Other Assets

Other Assets	12 Months Ended
	Dec. 31, 2024
Other Assets [Abstract]
Other Assets	Other Assets The following table presents the components of other assets as of the dates indicated: (In millions) December 31, 2024 December 31, 2023 Securities borrowed (1) $ 37,451 $ 23,131 Derivative instruments, net 11,183 5,307 Bank-owned life insurance 3,856 3,742 Investments in joint ventures and other unconsolidated entities (2) 3,317 2,981 Collateral, net 3,216 2,983 Right-of-use assets 818 805 Prepaid expenses 738 598 Deferred tax assets, net of valuation allowance (3) 701 1,034 Accounts receivable 504 611 Income taxes receivable 144 246 Receivable for securities settlement 57 1,082 Other (4) 2,529 2,286 Total $ 64,514 $ 44,806 (1) Refer to Note 11, for further information on the impact of collateral on our financial statement presentation of securities borrowing and securities lending transactions. (2) Includes equity securities without readily determinable fair values that are accounted for under the ASC 321 measurement alternative of $341 million and $183 million as of December 31, 2024 and 2023, respectively. For the year ended December 31, 2024, no impairments were recognized in other fee revenue related to such equity securities. (3) Deferred tax assets and liabilities recorded in our consolidated statement of condition are netted within the same tax jurisdiction. (4) Includes advances of $1.04 billion and $1.15 billion as of December 31, 2024 and 2023, respectively.

Deposits

Deposits	12 Months Ended
	Dec. 31, 2024
Banking and Thrift, Other Disclosure [Abstract]
Deposits	DepositsWe had $5.78 billion and $5.80 billion of time deposits outstanding, of which $0.08 billion and $0.06 billion were non-U.S. time deposits as of December 31, 2024 and 2023, respectively. Time deposits included amounts in excess of the FDIC insurance limits, or other uninsured accounts not subject to any country specific deposit insurance limits, of $5.77 billion and $5.79 billion as of December 31, 2024 and 2023, respectively. As of December 31, 2024, uninsured time deposits of $1.07 billion were scheduled to mature in less than three months, $2.41 billion in three to six months, and $2.29 billion in six to twelve months. Demand deposit overdrafts of $1.98 billion and $2.27 billion were included as loan balances at December 31, 2024 and 2023, respectively.

Short-Term Borrowings

Short-Term Borrowings	12 Months Ended
	Dec. 31, 2024
Debt Disclosure [Abstract]
Short-Term Borrowings	Short-Term Borrowings Our short-term borrowings include securities sold under repurchase agreements and FHLB and BTFP funding recorded in other short-term borrowings. Collectively, short-term borrowings had weighted-average interest rates of 5.03% and 1.52% in 2024 and 2023, respectively. The following tables present information with respect to the amounts outstanding and weighted-average interest rates of the primary components of our short-term borrowings as of and for the years ended December 31: (Dollars in millions) Securities Sold Under Other (1) 2024 2023 2024 2023 Balance as of December 31 $ 3,681 $ 1,867 $ 9,815 $ 3,500 Average outstanding during the year 3,163 3,904 11,128 849 Weighted-average interest rate as of year-end 5.62 % .08 % 4.77 % 3.03 % Weighted-average interest rate during the year 4.93 .87 5.19 5.12 (1) Primarily includes FHLB and Bank Term Funding Program borrowings. Obligations to repurchase securities sold are recorded as a liability in our consolidated statement of condition. Applicable securities with a fair value of $4.36 billion underlying the repurchase agreements remained in our investment securities portfolio as of December 31, 2024. The following table presents information about these securities and the carrying value of the related repurchase agreements, including accrued interest, as of December 31, 2024. Securities Sold Repurchase Agreements (1) (In millions) Amortized Fair Value Amortized Term maturity (2) $ 3,588 $ 3,500 $ 3,505 Overnight maturity 875 861 176 Total $ 4,463 $ 4,361 $ 3,681 (1) Collateralized by investment securities. (2) Maturity is greater than 90 days. We maintain an agreement with a clearing organization (FICC) that enables us to net securities purchased under resale agreements and sold under repurchase agreements with counterparties that are also members of the clearing organization when specific netting criteria are met. The impact of this netting was $191.26 billion on average in 2024 compared to $140.36 billion in 2023, primarily due to higher FICC repo volumes. State Street Bank currently maintains a line of credit of CAD $1.40 billion, or approximately $0.97 billion, as of December 31, 2024, to support its Canadian securities processing operations. The line of credit has no stated termination date and is cancellable by either party with prior notice. As of both December 31, 2024 and 2023, there was no balance outstanding on this line of credit.

Long-Term Debt

Long-Term Debt	12 Months Ended
	Dec. 31, 2024
Debt Disclosure [Abstract]
Long-Term Debt	Long-Term Debt (Dollars in millions) As of December 31, Issuance Date Maturity Date Coupon Rate Seniority Interest Due Dates 2024 2023 Parent Company and Non-Banking Subsidiary Issuances August 18, 2015 August 18, 2025 (1) 3.550 % Senior notes 2/18; 8/18 (2) $ 1,285 $ 1,265 August 3, 2023 August 3, 2026 5.272 % Senior notes 2/3; 8/3 (2) 1,203 1,211 October 22, 2024 October 22, 2027 4.330 % Senior notes 4/22, 10/22 (2) 1,189 — May 18, 2023 May 18, 2026 5.104 % Fixed-to-floating rate senior notes 5/18; 11/18 999 998 May 18, 2023 May 18, 2034 5.159 % Fixed-to-floating rate senior notes 5/18; 11/18 995 995 March 18, 2024 March 18, 2027 4.993 % Senior notes 3/18, 9/18 (2) 993 — August 20, 2024 February 20, 2029 4.530 % Fixed-to-floating rate senior notes 2/20; 8/20 (2) 989 — November 21, 2023 November 21, 2029 5.684 % Fixed-to-floating rate senior notes 5/21; 11/21 (2) 986 995 March 3, 2021 March 3, 2031 (1)(3) 2.200 % Senior subordinated notes 3/3; 9/3 845 845 October 22, 2024 October 22, 2032 4.675 % Fixed-to-floating rate senior notes 4/22; 10/22 (2) 789 — January 24, 2020 January 24, 2030 (1) 2.400 % Senior notes 1/24, 7/24 (2) 784 790 May 19, 2016 May 19, 2026 (1) 2.650 % Senior notes 5/19; 11/19 (2) 728 719 January 26, 2023 January 26, 2034 4.821 % Fixed-to-floating rate senior notes 1/26, 7/26 (2) 702 731 August 4, 2022 August 4, 2033 4.164 % Fixed-to-floating rate senior notes 2/4; 8/4 (2) 665 687 February 7, 2022 February 7, 2028 2.203 % Fixed-to-floating rate senior notes 2/7; 8/7 (2) 619 605 December 3, 2018 December 3, 2029 4.141 % Fixed-to-floating rate senior notes 6/3; 12/3 (2) 535 556 November 1, 2019 November 1, 2034 (3) 3.031 % Fixed-to-floating rate senior subordinated notes 5/1; 11/1 (2) 523 528 April 30, 2007 June 15, 2047 Floating-rate Junior subordinated debentures 3/15; 6/15; 9/15; 12/15 500 500 January 26, 2023 January 26, 2026 4.857 % Fixed-to-floating rate senior notes 1/26, 7/26 (2) 499 496 November 4, 2022 November 4, 2026 5.751 % Fixed-to-floating rate senior notes 5/4; 11/4 (2) 498 497 March 30, 2020 March 30, 2031 3.152 % Fixed-to-floating rate senior notes 3/30, 9/30 498 498 May 13, 2022 May 13, 2033 4.421 % Fixed-to-floating rate senior notes 5/13; 11/13 498 497 November 18, 2021 November 18, 2027 1.684 % Fixed-to-floating rate senior notes 5/18; 11/18 (2) 497 496 March 30, 2020 March 30, 2026 2.901 % Fixed-to-floating rate senior notes 3/30; 9/30 (2) 497 485 November 4, 2022 November 4, 2028 5.820 % Fixed-to-floating rate senior notes 5/4; 11/4 (2) 495 497 November 21, 2023 November 21, 2034 (3) 6.123 % Fixed-to-floating rate senior subordinated notes 5/21; 11/21 (2) 492 497 February 7, 2022 February 7, 2033 2.623 % Fixed-to-floating rate senior notes 2/7; 8/7 (2) 465 476 August 3, 2023 August 3, 2026 Floating-rate Senior notes 2/3; 5/3; 8/3; 11/3 299 299 February 7, 2022 February 6, 2026 1.746 % Fixed-to-floating rate senior notes 2/6; 8/6 (2) 299 290 October 22, 2024 October 22, 2027 Floating-rate Senior notes 1/22; 4/22; 7/22; 10/22 299 — June 21, 1996 June 15, 2026 (1) 7.350 % Senior notes 6/15; 12/15 150 150 May 15, 1998 May 15, 2028 Floating-rate Junior subordinated debentures 2/15; 5/15; 8/15; 11/15 100 100 December 15, 2014 December 16, 2024 (1) 3.300 % Senior notes 6/16; 12/16 (2) — 977 November 1, 2019 November 1, 2025 (4) 2.354 % Fixed-to-floating rate senior notes 5/1; 11/1 (2) — 972 State Street Bank issuances and lease obligations November 25, 2024 November 25, 2026 (1) 4.594 % Senior notes 5/25, 11/25 1,146 — November 25, 2024 November 23, 2029 (1) 4.782 % Senior notes 5/23, 11/23 796 — November 25, 2024 November 25, 2026 (1) Floating-rate Senior notes 2/25; 5/25; 8/25; 11/25 299 — Long-term finance leases and equipment financing 116 187 Total long-term debt $ 23,272 $ 18,839 (1) We may not redeem notes prior to their maturity. (2) We have entered into interest rate swap agreements, recorded as fair value hedges, to modify our interest expense on these senior and subordinated notes from a fixed rate to a floating rate. As of December 31, 2024 and 2023, the carrying value of long-term debt associated with these fair value hedges was $220 million and $184 million, respectively. Refer to Note 10 for additional information about fair value hedges. (3) The subordinated notes qualify for inclusion in tier 2 regulatory capital under current federal regulatory capital guidelines. (4) We redeemed the notes prior to original maturity date. Parent Company and Non-Banking Subsidiaries On January 27, 2025, we redeemed $500 million aggregate principal amount of 4.857% fixed-to-floating rate senior notes due 2026. On February 6, 2025, we redeemed $300 million aggregate principal amount of 1.746% fixed-to-floating rate senior notes due 2026. State Street Bank As of December 31, 2024 and 2023, $79 million and $130 million, respectively, of long-term finance leases

Derivative Financial Instrument

Derivative Financial Instruments	12 Months Ended
	Dec. 31, 2024
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments	Derivative Financial Instruments We use derivative financial instruments to support our clients’ needs and to manage our interest rate, currency and other market risks. These financial instruments consist of FX contracts such as forwards, futures and options contracts; interest rate contracts such as interest rate swaps (cross currency and single currency) and futures; and other derivative contracts. Derivative instruments used for risk management purposes that are highly effective in offsetting the risk being hedged are generally designated as hedging instruments in hedge accounting relationships, while others are economic hedges and not designated in hedge accounting relationships. Derivatives in hedge accounting relationships are disclosed according to the type of hedge, such as fair value, cash flow or net investment. Derivatives designated as hedging instruments in hedge accounting relationships are carried at fair value with change in fair value recognized in the consolidated statement of income or other comprehensive income (OCI), as appropriate. Derivatives not designated in hedge accounting relationships include those derivatives entered into to support client needs and derivatives used to manage interest rate, currency and other market risks associated with certain assets and liabilities. Such derivatives are carried at fair value with changes in fair value recognized in the consolidated statement of income. Derivatives Not Designated as Hedging Instruments We provide foreign exchange forward contracts and options in support of our client needs, and also act as a dealer in the currency markets. As part of our trading activities, we assume positions in both the foreign exchange and interest rate markets by buying and selling cash instruments and using derivative financial instruments, including foreign exchange forward contracts, foreign exchange and interest rate options, interest rate forward contracts, and interest rate futures. The entire change in the fair value of derivatives utilized in our trading activities are recorded in foreign exchange trading services revenue. We also utilize derivatives in our asset and liability management activities and to manage other marke t risks. The entire change in fair value of such derivatives are recorded in net interest income and other fee revenue, respectively. We enter into stable value wrap derivative contracts with unaffiliated stable value funds that allow a stable value fund to provide book value coverage to its participants. These derivatives contracts qualify as guarantees as described in Note 12. We grant deferred cash awards to certain of our employees as part of our employee incentive compensation plans. We account for these awards as derivative financial instruments, as the underlying referenced shares are not equity instruments of ours. The fair value of these derivatives is referenced to the value of units in State Street-sponsored investment funds or funds sponsored by other unrelated entities. We re-measure these derivatives to fair value quarterly, and record the change in value in compensation and employee benefits expenses in our consolidated statement of income. Derivatives Designated as Hedging Instruments In connection with our asset and liability management activities, we use derivative financial instruments to manage our interest rate risk and foreign currency risk for certain assets and liabilities. At both the inception of the hedge and on an ongoing basis, we formally assess and document the effectiveness of a derivative designated in a hedging relationship and the likelihood that the derivative will be an effective hedge in future periods. We discontinue hedge accounting prospectively when we determine that the derivative is no longer highly effective in offsetting changes in fair value or cash flows of the underlying risk being hedged, the derivative expires, terminates or is sold, or management discontinues the hedge designation. The risk management objective of a highly effective hedging strategy that qualifies for hedge accounting must be formally documented. The hedge documentation includes the derivative hedging instrument, the asset or liability or forecasted transaction, type of risk being hedged and method for assessing hedge effectiveness of the derivative prospectively and retrospectively. We use quantitative methods including regression analysis and cumulative dollar offset method, comparing the change in the fair value of the derivative to the change in fair value or the cash flows of the hedged item. We may also utilize qualitative methods such as matching critical terms and evaluation of any changes in those critical terms. Effectiveness is assessed and documented quarterly and if determined that the derivative is not highly effective at hedging the designated risk hedge accounting is discontinued. Fair Value Hedges Derivatives designated as fair value hedges are utilized to mitigate the risk of changes in the fair values of recognized assets and liabilities, including long-term debt and AFS securities. We use interest rate and foreign exchange contracts in this manner to manage our exposure to changes in the fair value of hedged items caused by changes in interest rates and foreign exchange rates, respectively. Changes in the fair value of the derivative and changes in fair value of the hedged item due to changes in the hedged risk are recognized in earnings in the same line item. If a hedge is terminated, but the hedged item was not derecognized, all remaining adjustments to the carrying amount of the hedged item are amortized over a period that is consistent with the amortization of other discounts or premiums associated with the hedged item . Cash Flow Hedges Derivatives designated as cash flow hedges are utilized to offset the variability of cash flows of recognized assets, liabilities or forecasted transactions. We have entered into FX contracts to hedge the change in cash flows attributable to FX movements in foreign currency denominated investment securities. Additionally, we have entered into interest rate swap agreements to hedge the forecasted cash flows associated with EURIBOR indexed floating-rate loans, Deposit Facility Interest Rate (DFR) indexed ECB deposits and Interest Rate on Reserve Balances (IORB) indexed floating-rate cash deposits held across the Federal Reserve Bank system. The interest rate swaps synthetically convert the interest receipts from a variable-rate to a fixed-rate, thereby mitigating the risk attributable to changes in the EURIBOR, DFR and IORB. Changes in fair value of the derivatives designated as cash flow hedges are initially recorded in AOCI and then reclassified into earnings in the same period or periods during which the hedged forecasted transaction affects earnings and are presented in the same income statement line item as the earnings effect of the hedged item. If the hedge relationship is terminated, the change in fair value on the derivative recorded in AOCI is reclassified into earnings consistent with the timing of the hedged item. For hedge relationships that are discontinued because a forecasted transaction is not expected to occur according to the original hedge terms, any related derivative values recorded in AOCI are immediately recognized in earnings. The net loss associated with cash flow hedges expected to be reclassified from AOCI within 12 months of December 31, 2024 is approximately $136 million. The maximum length of time over which forecasted cash flows are hedged is 5 years. Net Investment Hedges Derivatives categorized as net investment hedges are entered into to protect the net investment in our foreign operations against adverse changes in exchange rates. We use FX forward contracts to convert the foreign currency risk to U.S. dollars to mitigate our exposure to fluctuations in FX rates. The changes in fair value of the FX forward contracts are recorded, net of taxes, in the foreign currency translation component of OCI. The following table presents the aggregate contractual, or notional, amounts of derivative financial instruments including those entered into for trading and asset and liability management activities as of the dates indicated: (In millions) December 31, 2024 December 31, 2023 Derivatives not designated as hedging instruments: Interest rate contracts: Futures $ 47,222 $ 12,668 Foreign exchange contracts: Forward, swap and spot 2,612,945 2,528,115 Options purchased 466 851 Options written 145 544 Futures 359 197 Other: Futures 155 125 Stable value contracts (1) 25,271 28,704 Deferred value awards (2) 253 289 Derivatives designated as hedging instruments: Interest rate contracts: Swap agreements 33,302 20,333 Foreign exchange contracts: Forward and swap 10,260 9,777 (1) The notional value of the stable value contracts represents our maximum exposure. However, exposure to various stable value contracts is generally contractually limited to substantially lower amounts than the notional values. (2) Represents grants of deferred value awards to employees; refer to discussion in this note under “Derivatives Not Designated as Hedging Instruments.” Notional amounts are provided here as an indication of the volume of our derivative activity and serve as a reference to calculate the fair values of the derivative. The following table presents the fair value of derivative financial instruments, excluding the impact of master netting agreements, recorded in our consolidated statement of condition as of the dates indicated. Fair value measurement for derivatives is further discussed in Note 2, and the impact of master netting agreements is provided in Note 11. Derivative Assets (1) Derivative Liabilities (2) (In millions) December 31, 2024 December 31, 2023 December 31, 2024 December 31, 2023 Derivatives not designated as hedging instruments: Foreign exchange contracts $ 29,116 $ 19,498 $ 28,904 $ 19,153 Other derivative contracts 1 — 219 182 Total $ 29,117 $ 19,498 $ 29,123 $ 19,335 Derivatives designated as hedging instruments: Foreign exchange contracts $ 323 $ 196 $ — $ 263 Interest rate contracts 28 13 1 4 Total $ 351 $ 209 $ 1 $ 267 (1) Derivative assets are included within other assets in our consolidated statement of condition. (2) Derivative liabilities are included within other liabilities The following table presents the impact of our use of derivative financial instruments on our consolidated statement of income for the periods indicated: Years Ended December 31, 2024 2023 2022 (In millions) Location of Gain (Loss) on Amount of Gain (Loss) on Derivative Recognized in Consolidated Statement of Income Derivatives not designated as hedging instruments: Foreign exchange contracts Foreign exchange trading services revenue $ 862 $ 803 $ 938 Foreign exchange contracts Interest expense 274 (54) (20) Interest rate contracts Foreign exchange trading services revenue 21 (2) 3 Other Derivative contracts Other fee revenue (12) (3) — Interest rate contracts Other fee revenue — — 1 Other derivative contracts (1) Compensation and employee benefits (189) (121) (89) Total $ 956 $ 623 $ 833 (1) Amount in 2024 reflects a deferred compensation expense acceleration of $79 million, related to prior period incentive compensation awards to align our deferred pay mix with peers. The following tables show the carrying amount and associated cumulative basis adjustments related to the application of hedge accounting that is included in the carrying amount of hedged assets and liabilities in fair value hedging relationships: December 31, 2024 Cumulative Fair Value Hedging Adjustment Increasing (Decreasing) the carrying amount (In millions) Carrying Amount of Hedged Assets/Liabilities Active De-designated (1) Long-term debt $ 15,951 $ (323) $ 103 Available-for-sale securities (2)(3) 18,666 (376) 1 December 31, 2023 Cumulative Fair Value Hedging Adjustment Increasing (Decreasing) the carrying amount (In millions) Carrying Amount of Hedged Assets/Liabilities Active De-designated (1) Long-term debt $ 12,463 $ (340) $ 156 Available-for-sale securities (2)(3) 11,260 (503) 3 (1) Represents hedged items no longer designated in qualifying fair value hedging relationships for which an associated basis adjustment exists at the balance sheet date. (2) Included in these amounts is the amortized cost of the financial assets designated in under the portfolio layer hedging relationships (hedged item is the hedged layer of a closed portfolio of financial assets expected to remain outstanding at the end of the hedging relationship). At December 31, 2024 and 2023, the amortized cost of the closed portfolios used in these hedging relationships was $3.32 billion and $685 million, respectively, of which $1.82 billion and $400 million, respectively, was designated under the portfolio layer hedging relationship. At December 31, 2024 and 2023, the cumulative adjustment associated with these hedging relationships was ($26) million and ($6) million, respectively. (3) Carrying amount represents amortized cost. As of December 31, 2024 and 2023, the total notional amount of the interest rate swaps of fair value hedges was $31.12 billion and $19.43 billion, respectively. The following tables present the impact of our use of derivative financial instruments on our consolidated statement of income for the periods indicated: Years Ended December 31, Years Ended December 31, 2024 2023 2022 2024 2023 2022 (In millions) Location of Gain (Loss) on Derivative in Consolidated Statement of Income Amount of Gain Hedged Item in Fair Value Hedging Relationship Location of Gain (Loss) on Hedged Item in Consolidated Statement of Income Amount of Gain Derivatives designated as fair value hedges: Interest rate contracts Net interest income $ (55) $ (164) $ 676 Available-for-sale securities (1) Net interest income $ 55 $ 164 $ (676) Interest rate contracts Net interest income 17 202 (1,160) Long-term debt Net interest income (17) (202) 1,160 Foreign exchange contracts Other fee revenue 21 — — Available-for-sale securities Other fee revenue (21) — — Total $ (17) $ 38 $ (484) $ 17 $ (38) $ 484 ( 1) For the year ended December 31, 2024, approximately $93 million of net unrealized losses on AFS investment securities designated in fair value hedges were recognized in OCI compared to approximately $122 million of net unrealized losses in the same period of 2023. Years Ended December 31, Years Ended December 31, 2024 2023 2022 Location of Gain or (Loss) Reclassified from Accumulated Other Comprehensive Income into Income 2024 2023 2022 (In millions) Amount of Gain (Loss) Recognized in Other Comprehensive Income on Derivative Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Income into Income Derivatives designated as cash flow hedges: Interest rate contracts (1) $ (6) $ 14 $ (598) Net interest income $ (200) $ (210) $ (43) Foreign exchange contracts 59 91 156 Net interest income 254 2 92 Total derivatives designated as cash flow hedges $ 53 $ 105 $ (442) $ 54 $ (208) $ 49 Derivatives designated as net investment hedges: Foreign exchange contracts $ 540 $ (89) $ 291 $ — $ — $ — Total derivatives designated as net investment hedges 540 (89) 291 — — — Total $ 593 $ 16 $ (151) $ 54 $ (208) $ 49 ( 1) As of December 31, 2024, the maximum maturity date of the underlying hedged items is approximately 5.0 years. Derivatives Netting and Credit Contingencies Netting Derivatives receivable and payable as well as cash collateral from the same counterparty are netted in the consolidated statement of condition for those counterparties with whom we have legally binding master netting agreements in place. In addition to cash collateral received and transferred presented on a net basis, we also receive and transfer collateral in the form of securities, which mitigate credit risk but are not eligible for netting. Additional information on netting is provided in Note 11. Credit Contingencies Certain of our derivatives are subject to master netting agreements with our derivative counterparties containing credit risk-related contingent features, which requires us to maintain an investment grade credit rating with the various credit rating agencies. If our rating falls below investment grade, we would be in violation of the provisions, and counterparties to the derivatives could request immediate payment or demand full overnight collateralization on derivative instruments in liability positions. The aggregate fair value of all derivatives with credit contingent features and in a net liability position as of December 31, 2024 totaled approximately $7.41 billion, against which we provided $5.66 billion of collateral in the normal course of business. If our credit related contingent features underlying these agreements were triggered as of December 31, 2024, the maximum additional collateral we would be required to post to our counterparties is approximately $1.75 billion.

Offsetting Arrangements

Offsetting Arrangements	12 Months Ended
	Dec. 31, 2024
Offsetting [Abstract]
Offsetting Arrangements	Offsetting Arrangements Certain of our transactions are subject to master netting agreements that allow us to net receivables and payables by contract and settlement type. For those legally enforceable contracts, we net receivables and payables with the same counterparty on our statement of condition. In addition to netting receivables and payables with our derivatives counterparty where a legal and enforceable netting arrangement exists, we also net related cash collateral received and transferred up to the fair value exposure amount. With respect to our securities financing arrangements, we net balances outstanding on our consolidated statement of condition for those transactions that met the netting requirements and were transacted under a legally enforceable netting arrangement with the counterparty. Securities received as collateral under securities financing or derivatives transactions can be transferred as collateral in many instances. The securities received as proceeds under secured lending transactions are recorded at a value that approximates fair value in other assets in our consolidated statement of condition with a related liability to return the collateral, if we have the right to transfer or re-pledge the collateral. As of December 31, 2024 and 2023, the value of securities received as collateral from third parties where we are permitted to transfer or re-pledge the securities totaled $11.41 billion and $10.67 billion, respectively, and the fair value of the portion that had been transferred or re-pledged as of the same dates was $2.76 billion and $6.41 billion, respectively. The following tables present information about the offsetting of assets related to derivative contracts and secured financing transactions, as of the dates indicated: Assets: December 31, 2024 Gross Amounts of Recognized Assets (1)(2) Gross Amounts Offset in Statement of Condition (3) Net Amounts of Assets Presented in Statement of Condition Gross Amounts Not Offset in Statement of Condition (In millions) Cash and Securities Received (4) Net Amount (5) Derivatives: Foreign exchange contracts $ 29,439 $ (16,424) $ 13,015 $ — $ 13,015 Interest rate contracts (6) 28 (1) 27 — 27 Other derivative contracts 1 — 1 — 1 Cash collateral and securities netting NA (1,860) (1,860) (1,197) (3,057) Total derivatives 29,468 (18,285) 11,183 (1,197) 9,986 Other financial instruments: Resale agreements and securities borrowing (7)(8) 276,151 (232,021) 44,130 (42,589) 1,541 Total derivatives and other financial instruments $ 305,619 $ (250,306) $ 55,313 $ (43,786) $ 11,527 Assets: December 31, 2023 Gross Amounts of Recognized Assets (1)(2) Gross Amounts Offset in Statement of Condition (3) Net Amounts of Assets Presented in Statement of Condition Gross Amounts Not Offset in Statement of Condition (In millions) Cash and Securities Received (4) Net Amount (5) Derivatives: Foreign exchange contracts $ 19,694 $ (10,496) $ 9,198 $ — $ 9,198 Interest rate contracts (6) 13 — 13 — 13 Cash collateral and securities netting NA (3,904) (3,904) (1,069) (4,973) Total derivatives 19,707 (14,400) 5,307 (1,069) 4,238 Other financial instruments: Resale agreements and securities borrowing (7)(8) 230,384 (200,561) 29,823 (28,016) 1,807 Total derivatives and other financial instruments $ 250,091 $ (214,961) $ 35,130 $ (29,085) $ 6,045 (1) Amounts include all transactions regardless of whether or not they are subject to an enforceable netting arrangement. (2) Refer to Note 1 and Note 2 for additional information about the measurement basis of derivative instruments. (3) Amounts subject to netting arrangements which have been determined to be legally enforceable and eligible for netting in the consolidated statement of condition. (4) Includes securities in connection with our securities borrowing transactions. (5) Includes amounts secured by collateral not determined to be subject to enforceable netting arrangements. (6) Variation margin payments presented as settlements rather than collateral. (7) Included in the $44.13 billion as of December 31, 2024 were $6.68 billion of resale agreements and $37.45 billion of collateral provided related to securities borrowing. Included in the $29.82 billion as of December 31, 2023 were $6.69 billion of resale agreements and $23.13 billion of collateral provided related to securities borrowing. Resale agreements and collateral provided related to securities borrowing were recorded in securities purchased under resale agreements and other assets, respectively, in our consolidated statement of condition. Refer to Note 12 for additional information with respect to principal securities finance transactions. (8) Offsetting of resale agreements primarily relates to our involvement in FICC, where we settle transactions on a net basis for payment and delivery through the Fedwire system. NA Not applicable The following tables present information about the offsetting of liabilities related to derivative contracts and secured financing transactions, as of the dates indicated: Liabilities: December 31, 2024 Gross Amounts of Recognized Liabilities (1)(2) Gross Amounts Offset in Statement of Condition (3) Net Amounts of Liabilities Presented in Statement of Condition Gross Amounts Not Offset in Statement of Condition (In millions) Cash and Securities Received (4) Net Amount (5) Derivatives: Foreign exchange contracts $ 28,904 $ (16,424) $ 12,480 $ — $ 12,480 Interest rate contracts (6) 1 (1) — — — Other derivative contracts 219 — 219 — 219 Cash collateral and securities netting NA (6,103) (6,103) (1,572) (7,675) Total derivatives 29,124 (22,528) 6,596 (1,572) 5,024 Other financial instruments: Repurchase agreements and securities lending (7)(8) 250,032 (232,021) 18,011 (17,835) 176 Total derivatives and other financial instruments $ 279,156 $ (254,549) $ 24,607 $ (19,407) $ 5,200 Liabilities: December 31, 2023 Gross Amounts of Recognized Liabilities (1)(2) Gross Amounts Offset in Statement of Condition (3) Net Amounts of Liabilities Presented in Statement of Condition Gross Amounts Not Offset in Statement of Condition (In millions) Cash and Securities Received (4) Net Amount (5) Derivatives: Foreign exchange contracts $ 19,416 $ (10,496) $ 8,920 $ — $ 8,920 Interest rate contracts (6) 4 — 4 — 4 Other derivative contracts 182 — 182 — 182 Cash collateral and securities netting NA (1,413) (1,413) (633) (2,046) Total derivatives 19,602 (11,909) 7,693 (633) 7,060 Other financial instruments: Repurchase agreements and securities lending (7)(8) 214,362 (200,561) 13,801 (13,306) 495 Total derivatives and other financial instruments $ 233,964 $ (212,470) $ 21,494 $ (13,939) $ 7,555 (1) Amounts include all transactions regardless of whether or not they are subject to an enforceable netting arrangement. (2) Refer to Note 1 and Note 2 for additional information about the measurement basis of derivative instruments. (3) Amounts subject to netting arrangements which have been determined to be legally enforceable and eligible for netting in the consolidated statement of condition. (4) Includes securities provided in connection with our securities lending transactions. (5) Includes amounts secured by collateral not determined to be subject to enforceable netting arrangements. (6) Variation margin payments presented as settlements rather than collateral. (7) Included in the $18.01 billion as of December 31, 2024 were $3.68 billion of repurchase agreements and $14.33 billion of collateral received related to securities lending transactions. Included in the $13.80 billion as of December 31, 2023 were $1.87 billion of repurchase agreements and $11.93 billion of collateral received related to securities lending transactions. Repurchase agreements and collateral received related to securities lending were recorded in securities sold under repurchase agreements and accrued expenses and other liabilities, respectively, in our consolidated statement of condition. Refer to Note 12 for additional information with respect to principal securities finance transactions. (8) Offsetting of repurchase agreements primarily relates to our involvement in FICC, where we settle transactions on a net basis for payment and delivery through the Fedwire system. NA Not applicable The securities transferred under resale and repurchase agreements typically are U.S. Treasury, agency and agency MBS. In our principal securities borrowing and lending arrangements, the securities transferred are predominantly equity securities and some corporate debt securities. The fair value of the securities transferred may increase in value to an amount greater than the amount received under our repurchase and securities lending arrangements, which exposes us to counterparty risk. We require the review of the price of the underlying securities in relation to the carrying value of the repurchase agreements and securities lending arrangements on a daily basis and when appropriate, adjust the cash or security to be obtained or returned to counterparties that is reflective of the required collateral levels. The following table summarizes our repurchase agreements and securities lending transactions by category of collateral pledged and remaining maturity of these agreements as of the periods indicated: As of December 31, 2024 As of December 31, 2023 (In millions) Overnight and Continuous Up to 30 Days 30-90 Days Greater than 90 Days Total Overnight and Continuous Up to 30 Days 30-90 Days Greater than 90 Days Total Repurchase agreements: U.S. Treasury and agency securities $ 223,095 $ 350 $ 1,277 $ 2,500 $ 227,222 $ 196,212 $ — $ 185 $ 1,360 $ 197,757 Non-US sovereign debt — — — — — — — — — — Total 223,095 350 1,277 2,500 227,222 196,212 — 185 1,360 197,757 Securities lending transactions: US Treasury and agency securities 152 — — — 152 6 — — — 6 Corporate debt securities 193 — — — 193 278 — 3 — 281 Equity securities 11,181 13 — 4,519 15,713 7,128 20 13 2,291 9,452 Other (1) 6,752 — — — 6,752 6,866 — — — 6,866 Total 18,278 13 — 4,519 22,810 14,278 20 16 2,291 16,605 Gross amount of recognized liabilities for repurchase agreements and securities lending $ 241,373 $ 363 $ 1,277 $ 7,019 $ 250,032 $ 210,490 $ 20 $ 201 $ 3,651 $ 214,362 (1) Represents a security interest in underlying client assets related to our prime services business, which assets clients have allowed us to transfer and re-pledge.

Commitments and Guarantees

Commitments and Guarantees	12 Months Ended
	Dec. 31, 2024
Commitments and Contingencies Disclosure [Abstract]
Commitments and Guarantees	Commitments and Guarantees The following table presents the aggregate gross contractual amounts of our off-balance sheet commitments and guarantees, as of the dates indicated: (In millions) December 31, 2024 December 31, 2023 Commitments: Unfunded credit facilities $ 34,191 $ 34,197 Guarantees (1) : Indemnified securities financing $ 310,814 $ 279,916 Standby letters of credit 908 1,510 (1) The potential losses associated with these guarantees equal the gross contractual amounts and do not consider the value of any collateral or reflect any participations to independent third parties. Unfunded Credit Facilities Unfunded credit facilities consist primarily of liquidity facilities provided to our fund and municipal counterparties, as well as commitments to purchase commercial real estate and leveraged loans that have not yet settled. As of December 31, 2024, approximately 75% of our unfunded commitments to extend credit expire within one year. Since many of these commitments are expected to expire or renew without being drawn upon, the gross contractual amounts do not necessarily represent our future cash requirements. Indemnified Securities Financing On behalf of our clients, we lend their securities, as agent, to brokers and other institutions. In most circumstances, we indemnify our clients for the fair market value of those securities against a failure of the borrower to return such securities. We require the borrowers to maintain collateral in an amount in excess of 100% of the fair market value of the securities borrowed. Securities on loan and the collateral are revalued daily to determine if additional collateral is necessary or if excess collateral is required to be returned to the borrower. Collateral received in connection with our securities lending services is held by us as agent and is not recorded in our consolidated statement of condition. The cash collateral held by us as agent is invested on behalf of our clients. In certain cases, the cash collateral is invested in third-party repurchase agreements, for which we indemnify the client against the loss of the principal invested. We require the counterparty to the indemnified repurchase agreement to provide collateral in an amount in excess of 100% of the amount of the repurchase agreement. In our role as agent, the indemnified repurchase agreements and the related collateral held by us are not recorded in our consolidated statement of condition. The following table summarizes the aggregate fair values of indemnified securities financing and related collateral, as well as collateral invested in indemnified repurchase agreements, as of the dates indicated: (In millions) December 31, 2024 December 31, 2023 Fair value of indemnified securities financing $ 310,814 $ 279,916 Fair value of cash and securities held by us, as agent, as collateral for indemnified securities financing 325,611 293,855 Fair value of collateral for indemnified securities financing invested in indemnified repurchase agreements 63,655 59,028 Fair value of cash and securities held by us or our agents as collateral for investments in indemnified repurchase agreements 68,507 63,105 In certain cases, we participate in securities finance transactions as a principal. As a principal, we borrow securities from the lending client and then lend such securities to the subsequent borrower, either our client or a broker/dealer. Our right to receive and obligation to return collateral in connection with our securities lending transactions are recorded in other assets and other liabilities, respectively, in our consolidated statement of condition. As of December 31, 2024 and 2023, we had approximately $37.45 billion and $23.13 billion, respectively, of collateral provided and approximately $14.33 billion and $11.93 billion, respectively, of collateral received from clients in connection with our participation in principal securities finance transactions. Stable Value Protection Stable value funds wrapped by us are high quality diversified portfolios of short intermediate duration fixed-income investments. Stable value contracts are derivative contracts that also qualify as guarantees. The notional amount under non-hedging derivatives, provided in Note 10, generally represents our maximum exposure under these derivatives contracts. However, exposure to various stable value contracts is contractually limited to substantially lower amounts than the notional values, which represent the total assets of the stable value funds. Standby Letters of Credit Standby letters of credit provide credit enhancement to our municipal clients to support the issuance of capital markets financing. FICC Guarantee As a sponsoring member in the FICC member program, we provide a guarantee to FICC in the event a customer fails to perform its obligations under a transaction. In order to minimize the risk associated with this guarantee, sponsored members acting as buyers generally grant a security interest in the subject securities received under and held on their behalf by State Street. Additionally, as a member of certain industry clearing and settlement exchanges, we may be required to pay a pro rata share of the losses incurred by the organization and provide liquidity support in the event of the default of another member to the extent that the defaulting member’s clearing fund obligation and the prescribed loss allocation is depleted. It is difficult to estimate our maximum possible exposure under the membership agreements, since this would require an assessment of future claims that may be made against us that have not yet occurred. At both December 31, 2024 and 2023, we did not record any liabilities under these arrangements. For additional information on our repurchase and reverse repurchase agreements, please refer to Note 11 to the consolidated financial statements in this Form 10-K.

Contingencies

Contingencies	12 Months Ended
	Dec. 31, 2024
Commitments and Contingencies Disclosure [Abstract]
Contingencies	Contingencies Legal and Regulatory Matters In the ordinary course of business, we and our subsidiaries are involved in disputes, litigation, and governmental or regulatory inquiries and investigations, both pending and threatened. These matters, if resolved adversely against us or settled, may result in monetary awards or payments, fines and penalties or require changes in our business practices. The resolution or settlement of these matters is inherently difficult to predict. Based on our assessment of these pending matters, we do not believe that the amount of any judgment, settlement or other action arising from any pending matter is likely to have a material adverse effect on our consolidated financial condition. However, an adverse outcome or development in certain of the matters described below could have a material adverse effect on our consolidated results of operations for the period in which such matter is resolved, or an accrual is determined to be required, on our consolidated financial condition, or on our reputation. We evaluate our needs for accruals of loss contingencies related to legal and regulatory proceedings on a case-by-case basis. When we have a liability that we deem probable, and we deem the amount of such liability can be reasonably estimated as of the date of our consolidated financial statements, we accrue our estimate of the amount of loss. We also consider a loss probable and establish an accrual when we make, or intend to make, an offer of settlement. Once established, an accrual is subject to subsequent adjustment as a result of additional information. The resolution of legal and regulatory proceedings and the amount of reasonably estimable loss (or range thereof) are inherently difficult to predict, especially in the early stages of proceedings. Even if a loss is probable, an amount (or range) of loss might not be reasonably estimated until the later stages of the proceeding due to many factors such as the presence of complex or novel legal theories, the discretion of governmental authorities in seeking sanctions or negotiating resolutions in civil and criminal matters, the pace and timing of discovery and other assessments of facts and the procedural posture of the matter (collectively, “factors influencing reasonable estimates”). As of December 31, 2024, our aggregate accruals for loss contingencies for legal, regulatory and related matters totaled approximately $15 million , including potential fines by government agencies and civil litigation with respect to the matters specifically discussed below. To the extent that we have established accruals in our consolidated statement of condition for probable loss contingencies, such accruals may not be sufficient to cover our ultimate financial exposure associated with any settlements or judgments. Any such ultimate financial exposure, or proceedings to which we may become subject in the future, could have a material adverse effect on our businesses, on our future consolidated financial statements or on our reputation. As of December 31, 2024, for those matters for which we have accrued probable loss contingencies and for other matters for which loss is reasonably possible (but not probable) in future periods, and for which we are able to estimate a range of reasonably possible loss, our estimate of the aggregate reasonably possible loss (in excess of any accrued amounts) ranges up to approximately $30 million . Our estimate with respect to the aggregate reasonably possible loss is based upon currently available information and is subject to significant judgment and a variety of assumptions and known and unknown uncertainties, which may change quickly and significantly from time to time, particularly if and as we engage with applicable governmental agencies or plaintiffs in connection with a proceeding. Also, the matters underlying the reasonably possible loss will change from time to time. As a result, actual results may vary significantly from the current estimate. In certain pending matters, it is not currently feasible to reasonably estimate the amount or a range of reasonably possible loss, and such losses, which may be significant, are not included in the estimate of reasonably possible loss discussed above. This is due to, among other factors, the factors influencing reasonable estimates described above. An adverse outcome in one or more of the matters for which we have not estimated the amount or a range of reasonably possible loss, individually or in the aggregate, could have a material adverse effect on our businesses, on our future consolidated financial statements or on our reputation. Given that our actual losses from any legal or regulatory proceeding for which we have provided an estimate of the reasonably possible loss could significantly exceed such estimate, and given that we cannot estimate reasonably possible loss for all legal and regulatory proceedings as to which we may be subject now or in the future, no conclusion as to our ultimate exposure from current pending or potential legal or regulatory proceedings should be drawn from the current estimate of reasonably possible loss. The following discussion provides information with respect to significant legal, governmental and regulatory matters. Gomes, et al. v. State Street Corp. Eight participants in our Salary Savings Program filed a purported class action complaint in May 2021 on behalf of participants and beneficiaries who participated in the program and invested in our proprietary investment fund options between May 2015 and April 3, 2024. The complaint named the plan sponsor as well as the committees overseeing the plan and their respective members as defendants, and alleged breach of fiduciary duty and violations of other duties owed to retirement plan participants under ERISA. We resolved this matter at a cost that was within our established accruals for loss contingencies. Edmar Financial Company, LLC et al v. Currenex, Inc. et al In August 2021, two former Currenex clients filed a putative civil class action lawsuit in the Southern District of New York alleging antitrust violations, fraud and a civil Racketeer Influenced and Corrupt Organization Act violation against Currenex, State Street and others. Pension Risk Transfer Litigation State Street Global Advisors Trust Company (“SSGA”) is named as a defendant in a series of purported class action complaints filed by participants in pension plans where, in each case, SSGA was hired as independent fiduciary on behalf of the pension plan to conduct an ERISA-compliant due diligence review of potential insurers who could assume the plan’s liabilities and satisfy its payment obligations through the purchase of a group annuity contract, consistent with DOL guidance. The complaints, collectively, allege violations of ERISA’s fiduciary and prohibited transaction rules against SSGA, the plan sponsors, and others. German Tax Matter In connection with a routine audit including the period 2013-2015, German tax authorities have questioned whether State Street should have withheld and be secondarily liable for certain taxes on dividends paid on securities of German issuers held as collateral over dividend record dates in client lending transactions with counterparties outside of Germany. OFAC Matter In June 2024, State Street entered into a settlement agreement with the U.S. Department of Treasury’s OFAC to resolve its investigation into apparent violations of OFAC’s Ukraine-/Russia-Related Sanctions Regulations. In connection with the settlement, we paid a civil monetary penalty of $7.45 million and made certain compliance commitments. State of Texas et al v. Blackrock, Inc. et al In November 2024, eleven state Attorneys General filed a complaint in Federal Court in the Eastern District of Texas against State Street, BlackRock and Vanguard, alleging antitrust violations on the theory that the three companies conspired to artificially suppress coal supply, resulting in harm to American consumers in the form of higher electricity costs. Income Taxes In determining our provision for income taxes, we make certain judgments and interpretations with respect to tax laws in jurisdictions in which we have business operations. Because of the complex nature of these laws, in the normal course of our business, we are subject to challenges from U.S. and non-U.S. income tax authorities regarding the amount of income taxes due. These challenges may result in adjustments to the timing or amount of taxable income or deductions or the allocation of taxable income among tax jurisdictions. We recognize a tax benefit when it is more likely than not that our position will result in a tax deduction or credit. Unrecognized tax benefits were approximately $237 million as of both December 31, 2024 and December 31, 2023. We are presently under audit by a number of tax authorities. The earliest tax year open to examination in jurisdictions where we have material operations is 2017. Management believes that we have sufficiently accrued liabilities as of December 31, 2024 for potential tax exposures.

Variable Interest Entities

Variable Interest Entities	12 Months Ended
	Dec. 31, 2024
Equity Method Investments and Joint Ventures [Abstract]
Variable Interest Entities	Variable Interest Entities We are involved, in the normal course of our business, with various types of special purpose entities, some of which meet the definition of VIEs. When evaluating a VIE for consolidation, we must determine whether or not we have a variable interest in the entity. Variable interests are investments or other interests that absorb portions of an entity’s expected losses or receive portions of the entity’s expected returns. If it is determined that we do not have a variable interest in the VIE, no further analysis is required and we do not consolidate the VIE. If we hold a variable interest in a VIE, we are required by U.S. GAAP to consolidate that VIE when we have a controlling financial interest in the VIE and therefore are deemed to be the primary beneficiary. We are determined to have a controlling financial interest in a VIE when we have both the power to direct the activities of the VIE that most significantly impact the VIE’s economic performance and the obligation to absorb losses or the right to receive benefits of the VIE that could potentially be significant to that VIE. This determination is evaluated periodically as facts and circumstances change. Asset-Backed Investment Securities We invest in various forms of ABS, which we carry in our investment securities portfolio. These ABS meet the U.S. GAAP definition of asset securitization entities, which are considered to be VIEs. We are not considered to be the primary beneficiary of these VIEs since we do not have control over their activities. Additional information about our ABS is provided in Note 3. Interests in Investment Funds In the normal course of business, we manage various types of investment funds through State Street Global Advisors in which our clients are investors, including State Street Global Advisors commingled investment vehicles and other similar investment structures. The majority of our AUM are contained within such funds. The services we provide to these funds generate management fee revenue. From time to time, we may invest cash in the funds in order for the funds to establish a performance history for newly-launched strategies, referred to as seed capital, or for other purposes. With respect to our interests in funds that meet the definition of a VIE, a primary beneficiary assessment is performed to determine if we have a controlling financial interest. As part of our assessment, we consider all the facts and circumstances regarding the terms and characteristics of the variable interest(s), the design and characteristics of the fund and the other involvements of the enterprise with the fund. If consolidation of certain funds is required, we retain the specialized investment company accounting rules followed by the underlying funds. When we no longer control these funds due to a reduced ownership interest or other reasons, the funds are de-consolidated and accounted for under another accounting method if we continue to maintain investments in the funds. As of both December 31, 2024 and 2023, we ha d no co nsolidated funds. As of December 31, 2024 and 2023, we managed certain funds, considered VIEs, in which we held a variable interest but for which we were not deemed to be the primary beneficiary. Our potential maximum loss exposure related to these unconsolidated funds totaled $19 million and $18 million as of December 31, 2024 and 2023, respectively, and represented the carrying value of our investments, which are recorded in other assets in our consolidated statement of condition. The amount of loss we may recognize during any period is limited to the carrying amount of our investments in the unconsolidated funds. Our conclusion to consolidate a fund may vary from period to period, most commonly as a result of fluctuation in our ownership interest as a result of changes in the number of fund shares held by either us or by third parties. Given that the funds follow specialized investment company accounting rules which prescribe fair value, a de-consolidation generally would not result in gains or losses for us. The net assets of any consolidated fund are solely available to settle the liabilities of the fund and to settle any investors’ ownership redemption requests, including any seed capital invested in the fund by us. We are not contractually required to provide financial or any other support to any of our funds. In addition, neither creditors nor equity investors in the funds have any recourse to our general credit. We also held investments in low-income housing, production and investment tax credit entities, considered VIEs for which we were not deemed to be the primary beneficiary. As of December 31, 2024 and 2023, our potential maximum loss exposure related to these unconsolidated entities totaled $1.10 billion and $1.33 billion, respectively, most of which represented the carrying value of our investments, which are recorded in other assets in our consolidated statement of condition. We account for our low-income housing tax credit investments (LIHTC) and production tax credit investments under the proportional amortization method. Under the proportional amortization method, the initial cost of the investment is amortized based on a percentage of the actual income tax credits and other income tax benefits allocated in the current period versus the total estimated income tax credits and other income tax benefits expected to be received over the life of the investment. The net benefit, representing the difference between amortization of the investment balance, recognition of the income tax credits and recognition of other income tax benefits from the investment is recognized as a component of income tax expense. As of December 31, 2024, we had investments in LIHTC and production tax credit investments of $705 million and $291 million , respectively, which are included in other assets in our consolidated statement of condition. Contingent contributions related to the renewable energy production tax credit investments were $42 million at December 31, 2024. These contributions are contingent on production and expected to be paid through 2034. Deferred contributions related to LIHTC investments were $110 million at December 31, 2024. These deferred contributions are payable in accordance with the respective agreements and are expected to be paid through 2042. The following table presents the impact of our tax credit programs for which we have elected to apply proportional amortization accounting on our consolidated statement of income for the periods indicated: Years Ended December 31, (In millions) 2024 2023 Income (loss) recorded on investments within other fee revenue $ 29 $ 26 Income recorded in total revenue 29 26 Tax credits and benefits recognized in income tax expense 256 239 Proportional amortization recognized in income tax expense (207) (182) Net benefits included in income tax expense 49 57 Net benefit attributable to tax-advantaged investments included in the consolidated statement of income for which proportional amortization has been elected $ 78 $ 83

Shareholders' Equity

Shareholders' Equity	12 Months Ended
	Dec. 31, 2024
Equity [Abstract]
Shareholders' Equity	Shareholders’ Equity Preferred Stock The following table summarizes selected terms of each of the series of the preferred stock issued and outstanding as of December 31, 2024: Preferred Stock (1) : Issuance Date Depositary Shares Issued Ownership Interest Per Depositary Share Liquidation Preference Per Share Liquidation Preference Per Depositary Share Per Annum Dividend Rate Dividend Payment Frequency Carrying Value as of December 31, 2024 (In millions) Redemption Date (2) Series G April 2016 20,000,000 1/4,000th 100,000 25 5.35% (3) Quarterly $ 493 March 15, 2026 Series I January 2024 1,500,000 1/100th 100,000 1,000 6.700% through March 14, 2029; resets March 15, 2029 and every subsequent five Quarterly 1,481 March 15, 2029 Series J July 2024 850,000 1/100th 100,000 1,000 6.700% through September 14, 2029; resets September 15, 2029 and every subsequent five Quarterly 842 September 15, 2029 (1) The preferred stock and corresponding depositary shares may be redeemed at our option in whole, but not in part, prior to the redemption date upon the occurrence of a regulatory capital treatment event, as defined in the certificate of designation, at a redemption price equal to the liquidation price per share and liquidation price per depositary share plus any declared and unpaid dividends, without accumulation of any undeclared dividends. (2) On the redemption date, or any dividend payment date thereafter, the preferred stock and corresponding depositary shares may be redeemed by us, in whole or in part, at the liquidation price per share and liquidation price per depositary share plus any declared and unpaid dividends, without accumulation of any undeclared dividends. (3) The dividend rate for the floating rate period of the Series G preferred stock that begins on March 15, 2026 and all subsequent floating rate periods will remain at the current fixed rate in accordance with the LIBOR Act and the contractual terms of the Series G preferred stock. On January 31, 2024, we issued 1.5 million depositary shares, each representing a 1/100th ownership interest in a share of fixed rate reset, non-cumulative perpetual preferred stock, Series I, without par value per share, with a liquidation preference of $100,000 per share (equivalent to $1,000 per depositary share), in a public offering. The aggregate proceeds, net of underwriting discounts, commissions and other issuance costs, were approximately $1.5 billion. On March 15, 2024, we redeemed an aggregate $1.0 billion, or all 7,500 outstanding shares, of our non-cumulative perpetual preferred stock, Series D (represented by 30,000,000 depository shares), for a cash redemption price of $100,000 per share (equivalent to $25 per depository share), plus all declared and unpaid dividends and all 2,500 of the outstanding shares of our noncumulative perpetual preferred stock, Series F (represented by 250,000 depository shares), for a cash redemption price of $100,000 per share (equivalent to $1,000 per depositary share) plus all declared and unpaid dividends. On July 24, 2024, we issued 850,000 depositary shares, each representing 1/100th ownership interest in shares of fixed rate reset, non-cumulative perpetual preferred stock, Series J, without par value per share, with a liquidation preference of $100,000 per share (equivalent to $1,000 per depositary share), in a public offering. The aggregate proceeds, net of underwriting discounts, commissions and other issuance costs, were approximately $842 million. On September 16, 2024, we redeemed an aggregate $500 million, or all 5,000 outstanding shares, of our non-cumulative perpetual preferred stock, Series H (represented by 500,000 depository shares), for a cash redemption price of $100,000 per share (equivalent to $1,000 per depository share), plus all declared and unpaid dividends. On February 6, 2025, we issued 750,000 depositary shares, each representing a 1/100th ownership interest in a share of fixed rate reset, non-cumulative perpetual preferred stock, Series K, without par value per share, with a liquidation preference of $100,000 per share (equivalent to $1,000 per depositary share), in a public offering. The aggregate proceeds, net of underwriting discounts, commissions and other issuance costs, were approximately $743 million. Dividends on the Series K Preferred Stock will be payable quarterly at an initial rate of 6.450% per annum commencing on June 15, 2025, with the first dividend payable on a pro-rata basis. Our preferred stock dividends, including the declaration, timing and amount thereof, are subject to consideration and approval by the Board at the relevant times. The following table presents the dividends declared for each of the series of preferred stock issued and outstanding for the periods indicated: Years Ended December 31, 2024 2023 (Dollars in millions, except per share amounts) Dividends Declared per Share Dividends Declared per Depositary Share Total Dividends Declared per Share Dividends Declared per Depositary Share Total Preferred Stock: Series D $ 1,475 $ 0.37 $ 11 $ 5,900 $ 1.48 $ 44 Series F 2,336 23.36 6 8,935 89.35 23 Series G 5,350 1.34 27 5,350 1.34 27 Series H 6,251 62.51 31 5,625 56.25 28 Series I 5,863 58.63 88 — — — Series J 2,643 26.43 22 — — — Total $ 185 $ 122 Common Stock On January 19, 2024, we announced a new common share repurchase program, approved by our Board and superseding all prior programs, authorizing the purchase of up to $5.0 billion of our common stock beginning in the first quarter of 2024 with no set expiration date the “2024 Program”). During 2024, we repurchased $1.3 billion of our common stock under the 2024 Program and expect common share repurchases to continue under this program during 2025. In 2023, we repurchased $3.8 billion of our common stock under the previously approved common share repurchase program authorizing the purchase of up to $4.5 billion of our common stock through December 31, 2023 (the “2023 Program”). The tables below present the activity under our common share repurchase program for the period indicated: Years Ended December 31, 2024 2023 Shares Acquired (In millions) Average Cost per Share Total Acquired (In millions) Shares Acquired (In millions) Average Cost per Share Total Acquired (In millions) 2024 Program 15.1 $ 85.89 $ 1,300 — $ — $ — 2023 Program — — — 49.2 77.22 3,800 The table below presents the dividends declared on common stock for the periods indicated: Years Ended December 31, 2024 2023 Dividends Declared per Share Total (In millions) Dividends Declared per Share Total (In millions) Common Stock $ 2.90 $ 859 $ 2.64 $ 837 Accumulated Other Comprehensive Income (Loss) The following table presents the after-tax components of AOCI and changes for the periods indicated, net of related taxes: (In millions) Net Unrealized Gains (Losses) on Cash Flow Hedges Net Unrealized Gains (Losses) on Investment Securities (1) Net Unrealized Losses on Retirement Plans Foreign Currency Translation Net Unrealized Gains (Losses) on Hedges of Net Investments in Non-U.S. Subsidiaries Total Balance as of December 31, 2021 $ (2) $ (50) $ (130) $ (1,019) $ 68 $ (1,133) Other comprehensive income (loss) before reclassifications (321) (1,937) (1) (732) 291 (2,700) Increase (decrease) due to amounts reclassified from accumulated other comprehensive income (36) 170 (12) — — 122 Other comprehensive income (loss) (357) (1,767) (13) (732) 291 (2,578) Balance as of December 31, 2022 $ (359) $ (1,817) $ (143) $ (1,751) $ 359 $ (3,711) Other comprehensive income (loss) before reclassifications 75 442 (3) 351 (90) 775 Increase (decrease) due to amounts reclassified from accumulated other comprehensive income 153 428 1 — — 582 Other comprehensive income (loss) 228 870 (2) 351 (90) 1,357 Balance as of December 31, 2023 $ (131) $ (947) $ (145) $ (1,400) $ 269 $ (2,354) Other comprehensive income (loss) before reclassifications 39 15 14 (768) 540 (160) Increase (decrease) due to amounts reclassified from accumulated other comprehensive income (40) 452 2 — — 414 Other comprehensive income (loss) (1) 467 16 (768) 540 254 Balance as of December 31, 2024 $ (132) $ (480) $ (129) $ (2,168) $ 809 $ (2,100) (1) Includes after-tax net unamortized unrealized gains (losses) of ($374) million, ($530) million and ($749) million as of December 31, 2024, 2023 and 2022, respectively, related to AFS investment securities previously transferred to HTM. The following table presents after-tax reclassifications into earnings for the periods indicated: Years Ended December 31, 2024 2023 2022 (In millions) Amounts Reclassified into Earnings Affected Line Item in Consolidated Statement of Income Investment securities: Net realized (gains) losses from sales of available-for-sale securities, net of related taxes of $21, $81 and $1 respectively $ 59 $ 213 $ 1 Net gains (losses) from sales of available-for-sale securities Losses reclassified from accumulated other comprehensive income into income, net of related taxes of $137, $81 and $96 respectively 393 215 169 Net interest income Cash flow hedges: (Gains) losses reclassified from accumulated other comprehensive income into income, net of related taxes of ($14), $55 and ($13) respectively (40) 153 (36) Net interest income Retirement plans: Amortization of actuarial losses, net of related taxes of nil, nil and $(1) respectively 2 1 (12) Compensation and employee benefits expenses Total amounts reclassified from accumulated other comprehensive income $ 414 $ 582 $ 122

Regulatory Capital

Regulatory Capital	12 Months Ended
	Dec. 31, 2024
Banking and Thrift, Other Disclosure [Abstract]
Regulatory Capital	Regulatory Capital We are subject to various regulatory capital requirements administered by federal banking agencies. Failure to meet minimum regulatory capital requirements can initiate certain mandatory and discretionary actions by regulators that, if undertaken, could have a direct material effect on our consolidated financial condition. Under current regulatory capital adequacy guidelines, we must meet specified capital requirements that involve quantitative measures of our consolidated assets, liabilities and off-balance sheet exposures calculated in conformity with regulatory accounting practices. Our capital components and their classifications are subject to qualitative judgments by regulators about components, risk weightings and other factors. As required by the Dodd-Frank Act, we and State Street Bank, as advanced approaches banking organizations, are subject to a “capital floor” in the calculation and assessment of regulatory capital adequacy by the U.S. Agencies. Beginning on January 1, 2015, we were required to calculate our risk-based capital ratios using both the advanced approaches and the standardized approach. As a result, from January 1, 2015 going forward, our risk-based capital ratios for regulatory assessment purposes are the lower of each ratio calculated under the standardized approach and the advanced approaches. As of December 31, 2024, we and State Street Bank exceeded all regulatory capital adequacy requirements to which we were subject. As of December 31, 2024, State Street Bank was categorized as “well capitalized” under the applicable regulatory capital adequacy framework, and exceeded all “well capitalized” ratio guidelines to which it was subject. Management believes that no conditions or events have occurred since December 31, 2024 that have changed the capital categorization of State Street Bank. The following table presents the regulatory capital structure, total RWA, related regulatory capital ratios and the minimum required regulatory capital ratios for us and State Street Bank as of the dates indicated. State Street Corporation State Street Bank (Dollars in millions) Basel III Advanced Approaches December 31, 2024 Basel III Standardized Approach December 31, 2024 Basel III Advanced Approaches December 31, 2023 Basel III Standardized Approach December 31, 2023 Basel III Advanced Approaches December 31, 2024 Basel III Standardized Approach December 31, 2024 Basel III Advanced Approaches December 31, 2023 Basel III Standardized Approach December 31, 2023 Common shareholders’ equity: Common stock and related surplus $ 11,226 $ 11,226 $ 11,245 $ 11,245 $ 13,333 $ 13,333 $ 13,033 $ 13,033 Retained earnings 29,582 29,582 27,957 27,957 15,977 15,977 14,454 14,454 Accumulated other comprehensive income (loss) (2,100) (2,100) (2,354) (2,354) (1,805) (1,805) (2,097) (2,097) Treasury stock, at cost (16,198) (16,198) (15,025) (15,025) — — — — Total 22,510 22,510 21,823 21,823 27,505 27,505 25,390 25,390 Regulatory capital adjustments: Goodwill and other intangible assets, net of associated deferred tax liabilities (8,320) (8,320) (8,470) (8,470) (8,054) (8,054) (8,208) (8,208) Other adjustments (1) (391) (391) (382) (382) (278) (278) (298) (298) Common equity tier 1 capital 13,799 13,799 12,971 12,971 19,173 19,173 16,884 16,884 Preferred stock 2,816 2,816 1,976 1,976 — — — — Tier 1 capital 16,615 16,615 14,947 14,947 19,173 19,173 16,884 16,884 Qualifying subordinated long-term debt 1,861 1,861 1,870 1,870 530 530 536 536 Adjusted allowance for credit losses — 183 — 150 — 183 — 150 Total capital $ 18,476 $ 18,659 $ 16,817 $ 16,967 $ 19,703 $ 19,886 $ 17,420 $ 17,570 Risk-weighted assets: Credit risk (2) $ 63,252 $ 124,281 $ 61,210 $ 109,228 $ 57,883 $ 121,785 $ 54,942 $ 107,067 Operational risk (3) 49,350 NA 43,768 NA 47,538 NA 42,297 NA Market risk 2,000 2,000 2,475 2,475 2,000 2,000 2,475 2,475 Total risk-weighted assets $ 114,602 $ 126,281 $ 107,453 $ 111,703 $ 107,421 $ 123,785 $ 99,714 $ 109,542 Adjusted quarterly average assets $ 318,470 $ 318,470 $ 269,807 $ 269,807 $ 314,754 $ 314,754 $ 266,818 $ 266,818 Capital Ratios: 2024 Minimum Requirements (4) 2023 Minimum Requirements (4) Common equity tier 1 capital 8.0 % 8.0 % 12.0 % 10.9 % 12.1 % 11.6 % 17.8 % 15.5 % 16.9 % 15.4 % Tier 1 capital 9.5 9.5 14.5 13.2 13.9 13.4 17.8 15.5 16.9 15.4 Total capital 11.5 11.5 16.1 14.8 15.7 15.2 18.3 16.1 17.5 16.0 Tier 1 leverage (5) 4.0 4.0 5.2 5.2 5.5 5.5 6.1 6.1 6.3 6.3 (1) Other adjustments within CET1 capital primarily include disallowed deferred tax assets, cash flow hedges that are not recognized at fair value on the balance sheet, and the overfunded portion of our defined benefit pension plan obligation net of associated deferred tax liabilities. (2) Under the advanced approaches, credit risk RWA includes a CVA which reflects the risk of potential fair value adjustments for credit risk reflected in our valuation of OTC derivative contracts. We used a simple CVA approach in conformity with the Basel III advanced approaches. (3) Under the current advanced approaches rules and regulatory guidance concerning operational risk models, RWA attributable to operational risk can vary substantially from period-to-period, without direct correlation to the effects of a particular loss event on our results of operations and financial condition and impacting dates and periods that may differ from the dates and periods as of and during which the loss event is reflected in our financial statements, with the timing and categorization dependent on the processes for model updates and, if applicable, model revalidation and regulatory review and related supervisory processes. An individual loss event can have a significant effect on the output of our operational RWA under the advanced approaches depending on the severity of the loss event and its categorization among the seven Basel-defined UOMs. (4) Minimum requirements include a CCB of 2.5% and a SCB of 2.5% for the advanced approaches and the standardized approach, respectively, a G-SIB surcharge of 1.0% and a countercyclical buffer of 0%. On June 26, 2024, we were notified by the Federal Reserve of the results from the 2024 supervisory stress test. Our SCB calculated under the 2024 supervisory stress test was well below the 2.5% minimum, resulting in an SCB at that floor, which remains in effect for the period from October 1, 2024 through September 30, 2025. (5) State Street Bank is required to maintain a minimum Tier 1 leverage ratio of 5% as it is the insured depository institution subsidiary of State Street Corporation, a U.S. G-SIB. NA Not applicable

Net Interest Income

Net Interest Income	12 Months Ended
	Dec. 31, 2024
Banking and Thrift, Interest [Abstract]
Net Interest Income	Net Interest Income The following table presents the components of interest income and interest expense, and related NII, for the periods indicated: Years Ended December 31, (In millions) 2024 2023 2022 Interest income: Interest-bearing deposits with banks $ 3,634 $ 2,869 $ 842 Investment securities: Investment securities available-for-sale 2,680 1,744 724 Investment securities held-to-maturity 1,090 1,262 979 Total investment securities 3,770 3,006 1,703 Securities purchased under resale agreements 686 312 188 Loans 2,271 1,862 972 Other interest-earning assets 1,616 1,131 383 Total interest income 11,977 9,180 4,088 Interest expense: Interest-bearing deposits 6,627 4,991 967 Securities sold under repurchase agreements 156 34 14 Federal funds purchased — 3 — Short-term borrowings 577 40 26 Long-term debt 1,086 888 376 Other interest-bearing liabilities 608 465 161 Total interest expense 9,054 6,421 1,544 Net interest income $ 2,923 $ 2,759 $ 2,544

Equity-Based Compensation

Equity-Based Compensation	12 Months Ended
	Dec. 31, 2024
Share-Based Payment Arrangement [Abstract]
Equity-Based Compensation	Equity-Based Compensation We record compensation expense for equity-based awards, such as deferred stock and performance awards, based on the closing price of our common stock on the date of grant, adjusted if appropriate, based on the eligibility of the award to receive dividends. Compensation expense related to equity-based and cash-settled stock awards with service-only conditions and terms that provide for a graded vesting schedule is recognized on a straight-line basis over the required service period for the entire award. Compensation expense related to equity-based awards with performance conditions and terms that provide for a graded vesting schedule is recognized over the requisite service period for each separately vesting tranche of the award, and is based on the probable outcome of the performance conditions at each reporting date. Compensation expense is adjusted for assumptions with respect to the estimated amount of awards that will be forfeited prior to vesting, and for employees who have met certain retirement eligibility criteria. Compensation expense for common stock awards granted to employees meeting early retirement eligibility criteria is fully expensed on the grant date. Dividend equivalents for certain equity-based awards are paid on stock units on a current basis prior to vesting and distribution. The 2017 Stock Incentive Plan, or 2017 Plan, was amended and restated and approved by shareholders in May 2023 for issuance of stock and stock based awards. Awards may be made under the 2017 Plan for (i) up to 15.1 million shares of common stock plus (ii) up to an additional 28.5 million shares that were available to be issued under the 2006 Equity Incentive Plan, or 2006 Plan, or may become available for issuance under the 2006 Plan due to expiration, termination, cancellation, forfeiture or repurchase of awards granted under the 2006 Plan. As of December 31, 2024, a total of 20.8 million shares from the 2006 Plan have been added to and may be issued from the 2017 Plan. As of December 31, 2024, a cumulative total of 24.7 million shares have been awarded under the 2017 Plan, compared to cumulative totals of 21.7 million shares and 18.7 million shares as of December 31, 2023 and 2022, respectively. The 2017 Plan allows for shares withheld in payment of the exercise price of an award or in satisfaction of tax withholding requirements, shares forfeited due to employee termination, shares expired under option awards, or shares not delivered when performance conditions have not been met, to be added back to the pool of shares available for issuance under the 2017 Plan. From inception to December 31, 2024, 7.0 million shares had been awarded under the 2017 Plan but not delivered, and have become available for re-issue. As of December 31, 2024, a total of 18.3 million shares were available for future issuance under the 2017 Plan. For deferred stock awards granted under the Plans, no common stock is issued at the time of grant and the award does not possess dividend and voting rights. Generally, these grants vest over zero Beginning with 2012, malus-based forfeiture provisions were included in deferred stock awards granted to employees identified as “material risk-takers,” as defined by management. These malus-based forfeiture provisions provide for the reduction or cancellation of unvested deferred compensation, such as deferred stock awards and performance-based awards, if it is determined that a material risk- taker made risk-based decisions that exposed us to inappropriate risks that resulted in a material unexpected loss at the business-unit, line-of-business or corporate level. In addition, awards granted to certain of our senior executives, as well as awards granted to individuals in certain jurisdictions, may be subject to recoupment after vesting (if applicable) and delivery to the individual in specified circumstances generally relating to fraud or willful misconduct by the individual that results in material harm to us or a material financial restatement. Compensation expense related to deferred stock awards and performance awards, which we record as a component of compensation and employee benefits expense in our consolidated statement of income, was $223 million, $208 million and $240 million for the years ended December 31, 2024, 2023 and 2022, respectively. Such expense for 2024, 2023 and 2022 excluded an expense of $3 million, $12 million and $21 million, respectively, associated with acceleration of expense in connection with targeted staff reductions. This expense was included in the severance-related portion of the associated restructuring or repositioning charges recorded in each respective year. For the years ended December 31, 2024, 2023 and 2022, no stock appreciation rights were exercised. As of December 31, 2024, there was no unrecognized compensation cost related to stock appreciation rights. Shares Weighted-Average Deferred Stock Awards: Outstanding as of December 31, 2022 5,279 $ 72.43 Granted 2,421 79.58 Vested (2,587) 71.54 Forfeited (145) 76.40 Outstanding as of December 31, 2023 4,968 75.72 Granted 2,551 68.70 Vested (2,513) 73.62 Forfeited (147) 73.35 Outstanding as of December 31, 2024 4,859 73.20 The total fair value of deferred stock awards vested for the years ended December 31, 2024, 2023 and 2022, based on the weighted average grant date fair value in each respective year, was $185 million, $185 million and $217 million, respectively. As of December 31, 2024, total unrecognized compensation cost related to deferred stock awards, net of estimated forfeitures, was $169 million, which is expected to be recognized over a weighted-average period of 2.2 years. Shares Weighted-Average Performance Awards: Outstanding as of December 31, 2022 2,296 $ 69.43 Granted 614 79.96 Forfeited (17) 74.59 Paid out (687) 62.99 Outstanding as of December 31, 2023 2,206 74.33 Granted 363 63.49 Forfeited (28) 80.01 Paid out (502) 65.70 Outstanding as of December 31, 2024 2,039 74.44 The total fair value of performance awards vested for the years ended December 31, 2024, 2023 and 2022, based on the weighted average grant date fair value in each respective year, was $33 million, $43 million and $60 million, respectively. As of December 31, 2024, total unrecognized compensation cost related to performance awards, net of estimated forfeitures, was $15 million, which is expected to be recognized over a weighted-average period of 1.8 years. Shares Weighted-Average Cash-Settled Restricted Stock Awards: Outstanding as of December 31, 2022 35 $ 79.99 Granted 24 83.80 Paid out (32) 79.99 Outstanding as of December 31, 2023 27 83.37 Granted 40 69.96 Paid out (38) 76.11 Outstanding as of December 31, 2024 29 74.52 The total fair value of cash-settled restricted stock awards vested during both the years ended December 31, 2024 and 2023, based on the weighted average grant date fair value, was $3 million. As of December 31, 2024, there was no unrecognized compensation cost related to cash-settled restricted stock awards. We utilize either treasury shares or authorized but unissued shares to satisfy the issuance of common stock under our equity incentive plans. We do not have a specific policy concerning purchases of our common stock to satisfy stock issuances. We have a general policy concerning purchases of our common stock to meet issuances under our employee benefit plans, including other corporate purposes. Various factors determine the amount and timing of our purchases of our common stock, including regulatory reviews and approvals or non-objections, our regulatory capital requirements, the number of shares we expect to issue under employee benefit plans, market conditions (including the trading price of our common stock), and legal considerations. These factors can change at any time, and the number of shares of common stock we will purchase or when we will purchase them cannot be assured. Additional information on our common stock purchase program is provided in Note 15.

Employee Benefits

Employee Benefits	12 Months Ended
	Dec. 31, 2024
Retirement Benefits [Abstract]
Employee Benefits	Employee Benefits Defined Benefit Pension and Other Post-Retirement Benefit Plans State Street Bank and certain of its U.S. subsidiaries participate in a non-contributory, tax-qualified defined benefit pension plan. The U.S. defined benefit pension plan was frozen as of December 31, 2007 and no new employees were eligible to participate after that date. We have agreed to contribute sufficient amounts as necessary to meet the benefits paid to plan participants and to fund the plan’s service cost, plus interest. U.S. employee account balances earn annual interest credits until the employee begins receiving benefits. Non-U.S. employees participate in local defined benefit plans which are funded as required in each local jurisdiction. In addition to the defined benefit pension plans, we have non-qualified unfunded SERPs that provide certain officers with defined pension benefits in excess of allowable qualified plan limits. State Street Bank and certain of its U.S. subsidiaries also participate in a post-retirement plan that provides health care benefits for certain retired employees. The total expense for these tax-qualified and non-qualified plans was $17 million, $16 million and $21 million in 2024, 2023 and 2022, respectively. We recognize the funded status of our defined benefit pension plans and other post-retirement benefit plans, measured as the difference between the fair value of the plan assets and the projected benefit obligation, in the consolidated statement of position. The assets held by the defined benefit pension plans are largely made up of common, collective funds that are liquid and invest principally in U.S. equities and high-quality fixed-income investments. The majority of these assets fall within Level 2 of the fair value hierarchy. The benefit obligations associated with our primary U.S. and non-U.S. defined benefit plans, non-qualified unfunded supplemental retirement plans and post-retirement plans were $1.10 billion, $19 million and less than $1 million, respectively, as of December 31, 2024 and $1.16 billion, $25 million and $1 million, respectively, as of December 31, 2023. As the primary defined benefit plans are frozen, the benefit obligation will only vary over time as a result of changes in market interest rates, the life expectancy of the plan participants and payments made from the plans. The primary U.S. and non-U.S. defined benefit pension plans were overfunded by $26 million and $10 million as of December 31, 2024 and 2023, respectively. The non-qualified supplemental retirement plans were underfunded by $19 million and $25 million as of December 31, 2024 and 2023, respectively. The other post-retirement benefit plans were underfunded by less than $1 million and $1 million as of December 31, 2024 and 2023, respectively. The underfunded status is included in other liabilities. Defined Contribution Retirement Plans We contribute to employer-sponsored U.S. and non-U.S. defined contribution plans. Our contribution to these plans was $212 million, $194 million and $171 million in 2024, 2023 and 2022, respectively.

Occupancy Expense and Informati

Occupancy Expense and Information Systems and Communications Expense	12 Months Ended
	Dec. 31, 2024
Leases [Abstract]
Occupancy Expense and Information Systems and Communications Expense	Occupancy Expense and Information Systems and Communications Expense Occupancy expense and information systems and communications expense include depreciation of buildings, leasehold improvements, computer hardware and software, equipment, furniture and fixtures, and amortization of lease right-of-use assets. Total depreciation and amortization expense in 2024, 2023 and 2022 was $824 million, $829 million and $842 million, respectively. We use our incremental borrowing rate to determine the present value of the lease payments for finance and operating leases described below. Additionally, we do not separate nonlease components such as real estate taxes and common area maintenance from base lease payments. As of December 31, 2024 and 2023, we had finance leases for information technology equipment of $67 million and $119 million, respectively, recorded in premises and equipment, with the related liability of $79 million and $130 million, respectively, recorded in long-term debt, in our consolidated statement of condition. Finance lease right-of-use asset amortization is recorded in information systems and communications expense on a straight-line basis in our consolidated statement of income over the respective lease term. Lease payments are recorded as a reduction of the liability, with a portion recorded as imputed interest expense. Accumulated amortization of the finance lease right-of-use assets was $135 million as of December 31, 2024. Interest expense related to the finance lease obligation reflected in NII was $3 million and $5 million in 2024 and 2023, respectively. As of December 31, 2024, aggregate net book value of the operating lease right-of-use assets recorded in other assets was $818 million, with the related lease liability recorded in accrued expenses and other liabilities We have entered into non-cancellable operating leases for premises and equipment. Nearly all of these leases include renewal options, and only those reasonably certain of being exercised are included in the term of the lease. Costs for operating leases are recorded on a straight-line basis which includes both interest expense and right-of-use asset amortization. Operating lease costs for office space are recorded in occupancy expense. Costs related to operating leases for equipment are recorded in information systems and communications expense. As of December 31, 2024, we have additional operating and finance leases, primarily for office space and equipment, that have not yet commenced with approximately $207 million of undiscounted future minimum lease payments. These leases will commence in fiscal year 2025 with lease terms ranging from 3 to 11 years. None of our leases contain residual value guarantees. The following table presents lease costs, sublease rental income, cash flows and new leases arising from lease transactions for 2024: Years Ended December 31, (In millions) 2024 2023 Finance lease: Amortization of right-of-use assets $ 48 $ 48 Interest on lease liabilities 3 5 Total finance lease expense 51 53 Sublease income — — Net finance lease expense 51 53 Operating lease: Operating lease expense 168 163 Sublease income (17) (23) Net operating lease expense 151 140 Net lease expense $ 202 $ 193 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from finance leases $ 3 $ 5 Operating cash flows from operating leases 179 197 Financing cash flows from finance leases 46 45 Right-of-use assets obtained in exchange for new lease obligations: Operating leases $ 174 $ 461 Finance leases — — The following table presents future minimum lease payments under non-cancellable leases as of December 31, 2024: (In millions) Operating Leases Finance Leases Total 2025 $ 182 $ 55 $ 237 2026 152 26 178 2027 134 — 134 2028 118 — 118 2029 88 — 88 Thereafter 342 — 342 Total future minimum lease payments 1,016 81 1,097 Less imputed interest (177) (2) (179) Total $ 839 $ 79 $ 918 The following table presents details related to remaining lease terms and discount rate as of December 31, 2024 and 2023: December 31, 2024 December 31, 2023 Weighted-average remaining lease term (in years): Finance leases 1.4 2.5 Operating leases 8.1 8.5 Weighted-average discount rate: Finance leases 3 % 3 % Operating leases 4 % 4 %
Occupancy Expense and Information Systems and Communications Expense	Occupancy Expense and Information Systems and Communications Expense Occupancy expense and information systems and communications expense include depreciation of buildings, leasehold improvements, computer hardware and software, equipment, furniture and fixtures, and amortization of lease right-of-use assets. Total depreciation and amortization expense in 2024, 2023 and 2022 was $824 million, $829 million and $842 million, respectively. We use our incremental borrowing rate to determine the present value of the lease payments for finance and operating leases described below. Additionally, we do not separate nonlease components such as real estate taxes and common area maintenance from base lease payments. As of December 31, 2024 and 2023, we had finance leases for information technology equipment of $67 million and $119 million, respectively, recorded in premises and equipment, with the related liability of $79 million and $130 million, respectively, recorded in long-term debt, in our consolidated statement of condition. Finance lease right-of-use asset amortization is recorded in information systems and communications expense on a straight-line basis in our consolidated statement of income over the respective lease term. Lease payments are recorded as a reduction of the liability, with a portion recorded as imputed interest expense. Accumulated amortization of the finance lease right-of-use assets was $135 million as of December 31, 2024. Interest expense related to the finance lease obligation reflected in NII was $3 million and $5 million in 2024 and 2023, respectively. As of December 31, 2024, aggregate net book value of the operating lease right-of-use assets recorded in other assets was $818 million, with the related lease liability recorded in accrued expenses and other liabilities We have entered into non-cancellable operating leases for premises and equipment. Nearly all of these leases include renewal options, and only those reasonably certain of being exercised are included in the term of the lease. Costs for operating leases are recorded on a straight-line basis which includes both interest expense and right-of-use asset amortization. Operating lease costs for office space are recorded in occupancy expense. Costs related to operating leases for equipment are recorded in information systems and communications expense. As of December 31, 2024, we have additional operating and finance leases, primarily for office space and equipment, that have not yet commenced with approximately $207 million of undiscounted future minimum lease payments. These leases will commence in fiscal year 2025 with lease terms ranging from 3 to 11 years. None of our leases contain residual value guarantees. The following table presents lease costs, sublease rental income, cash flows and new leases arising from lease transactions for 2024: Years Ended December 31, (In millions) 2024 2023 Finance lease: Amortization of right-of-use assets $ 48 $ 48 Interest on lease liabilities 3 5 Total finance lease expense 51 53 Sublease income — — Net finance lease expense 51 53 Operating lease: Operating lease expense 168 163 Sublease income (17) (23) Net operating lease expense 151 140 Net lease expense $ 202 $ 193 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from finance leases $ 3 $ 5 Operating cash flows from operating leases 179 197 Financing cash flows from finance leases 46 45 Right-of-use assets obtained in exchange for new lease obligations: Operating leases $ 174 $ 461 Finance leases — — The following table presents future minimum lease payments under non-cancellable leases as of December 31, 2024: (In millions) Operating Leases Finance Leases Total 2025 $ 182 $ 55 $ 237 2026 152 26 178 2027 134 — 134 2028 118 — 118 2029 88 — 88 Thereafter 342 — 342 Total future minimum lease payments 1,016 81 1,097 Less imputed interest (177) (2) (179) Total $ 839 $ 79 $ 918 The following table presents details related to remaining lease terms and discount rate as of December 31, 2024 and 2023: December 31, 2024 December 31, 2023 Weighted-average remaining lease term (in years): Finance leases 1.4 2.5 Operating leases 8.1 8.5 Weighted-average discount rate: Finance leases 3 % 3 % Operating leases 4 % 4 %

Expenses

Expenses	12 Months Ended
	Dec. 31, 2024
Other Expenses [Abstract]
Expenses	Expenses The following table presents the components of other expenses for the periods indicated: Years Ended December 31, (In millions) 2024 2023 2022 Professional services $ 465 $ 428 $ 375 Regulatory fees and assessments (1) 142 464 83 Sales advertising and public relations 142 142 99 Securities processing 78 49 63 Bank operations 51 45 41 Donations 28 27 27 Other 433 374 387 Total other expenses $ 1,339 $ 1,529 $ 1,075 (1) Includes an FDIC special assessment of $99 million and $387 million in 2024 and 2023, respectively, related to FDIC’s recovery of estimated losses to the Deposit Insurance Fund associated with the closures of Silicon Valley Bank and Signature Bank reflected in other expenses . Repositioning Charges In 2024, we recorded a net repositioning release of $2 million, including a $15 million release reflected in compensation and employee benefits expenses, partially offset by $13 million of occupancy charges related to footprint optimization. In 2023, we recorded net repositioning charges of approximately $203 million to enable the next phase of our productivity efforts to streamline operations and technology, and improve efficiency. Expenses for 2023 included $182 million of compensation and employee benefits expenses related to workforce rationalization and $21 million of occupancy costs related to real estate footprint optimization. The following table presents aggregate activity for repositioning charges for the periods indicated: (In millions) Employee Real Estate Total Accrual Balance at December 31, 2021 $ 68 $ 6 $ 74 Accruals for Repositioning Charges 58 20 78 Payments and Other Adjustments (43) (21) (64) Accrual Balance at December 31, 2022 83 5 88 Accruals for Repositioning Charges 182 21 203 Payments and Other Adjustments (58) (25) (83) Accrual Balance at December 31, 2023 207 1 208 Accruals for Repositioning Charges (15) 13 (2) Payments and Other Adjustments (96) (14) (110) Accrual Balance at December 31, 2024 $ 96 $ — $ 96

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2024
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes We use an asset-and-liability approach to account for income taxes. Our objective is to recognize the amount of taxes payable or refundable for the current year through charges or credits to the current tax provision, and to recognize deferred tax assets and liabilities for future tax consequences of temporary differences between amounts reported in our consolidated financial statements and their respective tax bases. The measurement of tax assets and liabilities is based on enacted tax laws and applicable tax rates. The effects of a tax position on our consolidated financial statements are recognized when we believe it is more likely than not that the position will be sustained. A valuation allowance is established if it is considered more likely than not that all or a portion of the deferred tax assets will not be realized. Deferred tax assets and liabilities recorded in our consolidated statement of condition are netted within the same tax jurisdiction. The following table presents the components of income tax expense (benefit) for the periods indicated: Years Ended December 31, (In millions) 2024 2023 2022 Current: Federal $ 108 $ 160 $ 161 State 68 79 112 Non-U.S. 387 317 342 Total current expense 563 556 615 Deferred: Federal 77 (77) (16) State 2 (63) (2) Non-U.S. 66 (44) (44) Total deferred expense (benefit) 145 (184) (62) Total income tax expense (benefit) $ 708 $ 372 $ 553 The following table presents a reconciliation of the U.S. statutory income tax rate to our effective tax rate based on income before income tax expense for the periods indicated: Years Ended December 31, 2024 2023 2022 U.S. federal income tax rate 21.0 % 21.0 % 21.0 % Changes from statutory rate: State taxes, net of federal benefit 1.8 2.4 3.1 Tax-exempt income (1.0) (1.5) (1.0) Business tax credits (1) (2.0) (3.6) (4.0) Foreign tax differential 1.0 (0.6) — Foreign tax credit (benefits)/ limitations (2) 0.6 (2.0) (0.1) Change in Valuation Allowance (0.5) (0.2) (2.0) Other, net (0.1) 0.6 (0.4) Effective tax rate 20.8 % 16.1 % 16.6 % (1) Business tax credits include research, low-income housing, production and investment tax credits. (2) Foreign tax credit (benefits)/limitations includes the period expense for global intangible low-taxed income. Undistributed indefinitely reinvested earnings of certain foreign subsidiaries amounted to approximately $8.38 billion at December 31, 2024. As a result, no provision has been recorded for state and local or foreign withholding income taxes. If a distribution were to occur, we would be subject to state, local and to foreign withholding tax. It is expected that any distribution will be exempt from federal income tax. Although the foreign withholding tax is generally creditable against U.S. federal income tax, certain credit utilization limitations may result in a net cost. The following table presents significant components of our gross deferred tax assets and gross deferred tax liabilities as of the dates indicated: December 31, (In millions) 2024 2023 Deferred tax assets: Other amortizable assets $ 189 $ 265 Tax credit carryforwards 577 673 Lease obligations 214 236 Deferred compensation 111 104 Restructuring charges and other reserves 227 224 NOL and other carryforwards 147 167 Pension plan 21 24 Foreign currency translation 63 51 Unrealized losses on investment securities, net 184 352 Total deferred tax assets 1,733 2,096 Valuation allowance for deferred tax assets (172) (200) Deferred tax assets, net of valuation allowance $ 1,561 $ 1,896 Deferred tax liabilities: Fixed and intangible assets $ 634 $ 574 Investment basis differences 47 40 Right-of-use Assets 198 214 Other 40 68 Total deferred tax liabilities $ 919 $ 896 The table below summarizes the deferred tax assets, carryforwards and related valuation allowances recognized as of December 31, 2024: (In millions) Deferred Tax Asset Valuation Allowance Expiration Other amortizable assets $ 189 $ (72) None Tax credits 577 (8) 2042-2044 NOLs - Non-U.S. 130 (80) 2026-2042, None NOLs - U.S. 14 (10) 2025-2043, None Other carryforwards 2 (2) None Management considers the valuation allowance adequate to reduce the total deferred tax assets to an aggregate amount that will more likely than not be realized. Management has determined that a valuation allowance is not required for the remaining deferred tax assets because it is more likely than not that there will be sufficient taxable income of the appropriate nature within the carryforward periods to realize these assets. At December 31, 2024, 2023 and 2022, the gross unrecognized tax benefits, excluding interest, were $237 million, $237 million and $285 million, respectively. Of this, the amounts that would reduce the effective tax rate, if recognized, are $220 million, $197 million and $272 million, respectively. The reduction in the effective tax rate includes the federal benefit for unrecognized state tax benefits. The following table presents activity related to unrecognized tax benefits as of the dates indicated: December 31, (In millions) 2024 2023 2022 Beginning balance $ 237 $ 285 $ 252 Decrease related to agreements with tax authorities (22) (32) (4) Increase related to tax positions taken during current year 36 39 48 Increase/(Decrease) related to tax positions taken during prior years 11 (34) 8 Decreases related to a lapse of the applicable statute of limitations (25) (21) (19) Ending balance $ 237 $ 237 $ 285 It is reasonably possible that of the $237 million of unrecognized tax benefits as of December 31, 2024, up to $37 million could decrease within the next 12 months due to agreements with tax authorities and the expiration of statutes of limitations. Management believes that we have sufficient accrued liabilities as of December 31, 2024 for tax exposures and related interest expense. Income tax expense included related interest and penalties of approximately $8 million, $7 million and $8 million in 2024, 2023 and 2022, respectively. Total accrued interest and penalties were approximately $21 million as of both December 31, 2024 and 2023, and $15 million as of December 31, 2022.

Earnings Per Common Share

Earnings Per Common Share	12 Months Ended
	Dec. 31, 2024
Earnings Per Share [Abstract]
Earnings Per Common Share	Earnings Per Common Share Basic EPS is calculated pursuant to the two-class method, by dividing net income available to common shareholders by the weighted-average common shares outstanding during the period. Diluted EPS is calculated pursuant to the two-class method, by dividing net income available to common shareholders by the total weighted-average number of common shares outstanding for the period plus the shares representing the dilutive effect of equity-based awards. The effect of equity-based awards is excluded from the calculation of diluted EPS in periods in which their effect would be anti-dilutive. The two-class method requires the allocation of undistributed net income between common and participating shareholders. Net income available to common shareholders, presented separately in our consolidated statement of income, is the basis for the calculation of both basic and diluted EPS. Participating securities are composed of unvested and fully vested SERP shares and fully vested deferred director stock awards, which are equity-based awards that contain non-forfeitable rights to dividends, and are considered to participate with the common stock in undistributed earnings. The following table presents the computation of basic and diluted earnings per common share for the periods indicated: Years Ended December 31, (Dollars in millions, except per share amounts) 2024 2023 2022 Net income $ 2,687 $ 1,944 $ 2,774 Less: Preferred stock dividends (202) (122) (112) Dividends and undistributed earnings allocated to participating securities (1) (2) (1) (2) Net income available to common shareholders $ 2,483 $ 1,821 $ 2,660 Average common shares outstanding (In thousands): Basic average common shares 297,883 322,337 365,214 Effect of dilutive securities: equity-based awards 4,343 4,231 4,895 Diluted average common shares 302,226 326,568 370,109 Anti-dilutive securities (2) 14 1,251 866 Earnings per common share: Basic $ 8.33 $ 5.65 $ 7.28 Diluted (3) 8.21 5.58 7.19 (1) Represents the portion of net income available to common equity allocated to participating securities, composed of unvested and fully vested SERP (Supplemental executive retirement plans) shares and fully vested deferred director stock awards, which are equity-based awards that contain non-forfeitable rights to dividends, and are considered to participate with the common stock in undistributed earnings. (2) Represents equity-based awards outstanding, but not included in the computation of diluted average common shares, because their effect was anti-dilutive. Additional information about equity-based awards is provided in Note 18. (3) Calculations reflect allocation of earnings to participating securities using the two-class method, as this computation is more dilutive than the treasury stock method.

Line of Business Information

Line of Business Information	12 Months Ended
	Dec. 31, 2024
Segment Reporting [Abstract]
Line of Business Information	Line of Business Information Our operations are organized into two lines of business, which represent our reportable segments: Investment Servicing and Investment Management, which are defined based on products and services provided. The results of operations for these lines of business are not necessarily comparable with those of other companies, including companies in the financial services industry. Investment Servicing provides a broad range of services and market and financing solutions to institutional clients, including mutual funds, collective investment funds and other investment pools, corporate and public retirement plans, insurance companies, investment managers, foundations and endowments worldwide. Through State Street Investment Services, State Street Global Markets ® and State Street Alpha ® , we offer a full range of back- and middle-office solutions, including custody, accounting and fund administration services for traditional and alternative assets, as well as multi-asset class investments; recordkeeping, client reporting and investment book of record, transaction management, loans, cash, derivatives and collateral services; investor services operations outsourcing; performance, risk and compliance analytics; financial data management to support institutional investors; foreign exchange, brokerage and other trading services; securities finance, including prime services products; and deposit and short-term investment facilities. Together with our middle- and back-office services, CRD’s front- and middle-office technology offerings form the foundation of State Street Alpha ® . Our State Street Alpha platform combines portfolio management, trading and execution, analytics and compliance tools, and advanced data aggregation and integration with other industry platforms and providers. Included in CRD’s technology offerings are Charles River Investment Management Solution, a front-office technology offering that automates and simplifies the institutional investment process across asset classes, from portfolio management and risk analytics through trading and post-trade settlement, with integrated compliance and managed data throughout; Charles River for Private Markets, an investment management solution for institutions investing in Private Credit, Private Equity, Real Estate, Infrastructure, and Funds; and Charles River Wealth Management Solution, which provides portfolio management, trading compliance and manager/sponsor communication capabilities to wealth managers, private banks and financial advisors. As the digital asset space continues to mature, we are building solutions to service, tokenize and safekeep digital assets. Our vision is to enable core digital asset infrastructure as a trusted provider of end-to-end solutions on a secure, interoperable blockchain. Investment Management provides a comprehensive range of investment management solutions and products for our clients through State Street Global Advisors. Our investment management solutions include strategies across equity, fixed income, cash, multi-asset and alternatives; products such as SPDR® ETFs and index funds; and services including defined benefit, defined contribution, and Outsourced Chief Investment Officer. Our investment servicing strategy is to focus on total client relationships and the full integration of our products and services across our client base through cross-selling opportunities. In general, our clients will use a combination of services, depending on their needs, rather than one product or service. For instance, a custody client may purchase securities finance and cash management services from different business units. Products and services that we provide to our clients are parts of an integrated offering to these clients. We price our products and services on the basis of overall client relationships and other factors; as a result, revenue may not necessarily reflect the stand-alone market price of these products and services within the business lines in the same way it would for separate business entities. Our servicing and management fee revenue from the Investment Servicing and Investment Management business lines, including foreign exchange trading services and securities finance activities, represents approximately 70% of our consolidated total revenue. The remaining 30% is composed of software and processing fees, including front office software and data and lending related and other fees, as well as NII, which is largely generated by our investment of client deposits, short-term borrowings and long-term debt in a variety of assets, and net gains (losses) related to investment securities. These other revenue types are generally fully allocated to, or reside in, Investment Servicing and Investment Management. Revenue and expenses are directly charged or allocated to our lines of business through management information systems. Our CODM is the chief executive officer. The line of business results are regularly provided to the CODM to evaluate the performance of each line of business and to inform how resources are allocated between those lines of business to best achieve management’s strategic and tactical goals. Capital is allocated based on the relative risks and capital requirements inherent in each business line, along with management judgment. Capital allocations may not be representative of the capital that might be required if these lines of business were separate business entities. The following is a summary of our line of business results for the periods indicated. Years Ended December 31, Investment Investment Other Total (Dollars in millions) 2024 2023 2022 2024 2023 2022 2024 2023 2022 2024 2023 2022 Revenue: Servicing fees $ 5,016 $ 4,922 $ 5,087 $ — $ — $ — $ — $ — $ — $ 5,016 $ 4,922 $ 5,087 Management fees — — — 2,124 1,876 1,939 — — — 2,124 1,876 1,939 Foreign exchange trading services 1,248 1,140 1,271 138 125 82 15 — 23 1,401 1,265 1,376 Securities finance 415 402 397 23 24 19 — — — 438 426 416 Software and processing fees 888 811 789 — — — — — — 888 811 789 Other fee revenue (1) 188 145 46 35 35 (47) 66 — — 289 180 (1) Total fee revenue 7,755 7,420 7,590 2,320 2,060 1,993 81 — 23 10,156 9,480 9,606 Net interest income 2,899 2,740 2,551 24 19 (7) — — — 2,923 2,759 2,544 Total other income 2 — (2) — — — (81) (294) — (79) (294) (2) Total revenue 10,656 10,160 10,139 2,344 2,079 1,986 — (294) 23 13,000 11,945 12,148 Provision for credit losses 75 46 20 — — — — — — 75 46 20 Expenses: Compensation and employee benefits 4,078 4,033 3,896 555 520 478 64 191 54 4,697 4,744 4,428 Information systems and communications 1,743 1,568 1,535 86 94 95 — 41 — 1,829 1,703 1,630 Transaction processing services 825 777 809 173 180 162 — — — 998 957 971 Other 1,041 1,035 1,020 841 746 661 124 398 91 2,006 2,179 1,772 Total expenses 7,687 7,413 7,260 1,655 1,540 1,396 188 630 145 9,530 9,583 8,801 Income before income tax expense $ 2,894 $ 2,701 $ 2,859 $ 689 $ 539 $ 590 $ (188) $ (924) $ (122) $ 3,395 $ 2,316 $ 3,327 Pre-tax margin 27 % 27 % 28 % 29 % 26 % 30 % 26 % 19 % 27 % Average assets (in billions) $ 308.5 $ 271.5 $ 283.2 $ 3.2 $ 3.2 $ 3.2 $ 311.7 $ 274.7 $ 286.4 (1) Investment Management includes other revenue items that are primarily driven by equity market movements. The “Other” columns presented in the previous table, represent amounts that are not allocated to our two lines of business. The following provides additional information about the items included in the line of business results “Other” column for the periods indicated. Years Ended December 31, Other (Dollars in millions) 2024 2023 2022 Fee revenue (1) $ 81 $ — $ 23 Other Income (2) (81) (294) — Deferred incentive compensation expense acceleration (3) (79) — — Net repositioning charges (4) 2 (203) (70) Net acquisition and restructuring costs (5) — 15 (65) FDIC special assessment and other (6) (111) (442) (10) Total $ (188) $ (924) $ (122) (1) Includes a $66 million gain on sale of equity investment and a $15 million revenue-related recovery associated with the proceeds from a 2018 foreign exchange benchmark litigation resolution, which is reflected in foreign exchange trading services revenue. (2) Includes the loss on the sale of investment securities of $81 million and $294 million in 2024 and 2023, respectively, related to the repositioning of the investment portfolio. (3) Deferred compensation expense acceleration of $79 million in 2024 reflected in compensation and employee benefits, associated with an amendment of certain outstanding deferred cash incentive compensation awards to align our deferred pay mix with peers. (4) Net repositioning charges in 2024 includes a $15 million release reflected in compensation and employee benefits, partially offset by $13 million of occupancy charges related to footprint optimization. Net repositioning charges in 2023 includes $182 million reflected in compensation and employee benefits expenses related to workforce rationalization and $21 million of occupancy costs related to real estate footprint optimization. (5) Acquisition and restructuring costs related to the Brown Brother Harriman Investor Services acquisition transaction that State Street is no longer pursuing. (6) Includes an FDIC special assessment of $99 million and $387 million in 2024 and 2023, respectively, related to FDIC’s recovery of estimated losses to the Deposit Insurance Fund associated with the closures of Silicon Valley Bank and Signature Bank reflected in other expenses. Other includes a $12 million charge in 2024 reflected in other expenses and $41 million in 2023 reflected in information systems and communications, primarily related to operating model changes.

Revenue from Contracts with Cus

Revenue from Contracts with Customers	12 Months Ended
	Dec. 31, 2024
Revenue from Contract with Customer [Abstract]
Revenue from Contracts with Customers	Revenue from Contracts with Customers We account for revenue from contracts with customers in accordance with ASC 606. The amount of revenue that we recognize is measured based on the consideration specified in contracts with our customers, and excludes taxes collected from customers subsequently remitted to governmental authorities. We recognize revenue when a performance obligation is satisfied over time as the services are performed or at a point in time depending on the nature of the services provided as further discussed below. Revenue recognition guidance related to contracts with customers excludes our NII, revenue earned on security lending transactions entered into as principal, realized gains/losses on securities, revenue earned on foreign exchange activity, loans and related fees, and gains/losses on hedging and derivatives, to which we apply other applicable U.S. GAAP guidance. For contracts with multiple performance obligations, or contracts that have been combined, we allocate the contracts’ transaction price to each performance obligation using our best estimate of the standalone selling price. Our contractual fees are negotiated on a customer by customer basis and are representative of standalone selling price utilized for allocating revenue when there are multiple performance obligations. Substantially all of our services are provided as a distinct series of daily performance obligations that the customer simultaneously benefits from as they are performed. Payments may be made to third party service providers and the expense is recognized gross when we control those services as we are deemed the principal. Contract durations may vary from short- to long-term or may be open ended. Termination notice periods are in line with general market practice and typically do not include termination penalties. Therefore, for substantially all of our revenues, the duration of the contract and the enforceable rights and obligations do not extend beyond the services that are performed daily or at the transaction level. In instances where we have substantive termination penalties, the duration of the contract may extend through the date of substantive termination penalties. Investment Servicing Revenue from contracts with customers related to servicing fees is recognized over time as our customers benefit from the custody, administration, accounting, transfer agency and other related asset services as they are performed. At contract inception, no revenue is estimated as the fees are dependent on assets under custody and/or administration and/or actual transactions which are susceptible to market factors outside of our control. Therefore, revenue is recognized using a time-based output method as the customers benefit from the services over time and as the assets under custody or transactions are known or determinable during each reporting period based on contractual fee schedules. Payments made to third party service providers, such as sub-custodians, are generally recognized gross as we control those services and are deemed to be a principal in such arrangements. Foreign exchange trading services revenue includes revenue generated from providing access and use of electronic trading platforms and other trading, transition management and brokerage services. Electronic FX services are dependent on the volume of actual transactions initiated through our electronic exchange platforms. Revenue is recognized over time using a time-based measure as access to, and use of, the electronic exchange platforms is made available to the customer and the activity is determinable. Revenue related to other trading, transition management and brokerage services is recognized when the customer obtains the benefit of such services which may be over time or at a point in time upon trade execution. Securities finance revenue is related to services for providing agency lending programs to State Street Global Advisors managed investment funds and third-party investment managers and asset owners. This securities finance revenue is recognized over time using a time-based measure as our customers benefit from these lending services. Revenue related to the front office solutions provided by CRD is primarily driven by the sale of licenses and SaaS arrangements, including professional services such as consulting and implementation services, software support and maintenance. Revenue for a sale of software to be installed on premise is recognized at a point in time when the customer benefits from obtaining access to and use of the software license. Revenue for a SaaS related arrangement is recognized over time as services are provided. Investment Management Revenue from contracts with customers related to investment management, investment research and investment advisory services provided through State Street Global Advisors is recognized over time as our customers benefit from the services as they are performed. Substantially all of our investment management fees are determined by the value of assets under management and the investment strategies employed. At contract inception, no revenue is estimated as the fees are dependent on assets under management which are susceptible to market factors outside of our control. Therefore, substantially all of our Investment Management services revenue is recognized using a time-based output method as the customers benefit from the services over time and as the assets under management are known or determinable during each reporting period based on contractual fee schedules. Payments made to third party service providers, such as payments to others in unitary fee arrangements, are generally recognized on a gross basis when State Street Global Advisors controls those services and is deemed to be a principal in such transactions. Revenue by category In the following table, revenue is disaggregated by our two lines of business and by revenue stream for which the nature, amount, timing and uncertainty of revenue and cash flows are affected by economic factors. The amounts in the “Other” columns were not allocated to our business lines. Year Ended December 31, 2024 Investment Servicing Investment Management Other Total (Dollars in millions) Topic 606 revenue All other revenue Total Topic 606 revenue All other revenue Total Topic 606 revenue All other revenue Total 2024 Servicing fees $ 5,016 $ — $ 5,016 $ — $ — $ — $ — $ — $ — $ 5,016 Management fees — — — 2,124 — 2,124 — — — 2,124 Foreign exchange trading services 386 862 1,248 138 — 138 — 15 15 1,401 Securities finance 185 230 415 — 23 23 — — — 438 Software and processing fees 685 203 888 — — — — — — 888 Other fee revenue — 188 188 — 35 35 — 66 66 289 Total fee revenue 6,272 1,483 7,755 2,262 58 2,320 — 81 81 10,156 Net interest income — 2,899 2,899 — 24 24 — — — 2,923 Total other income — 2 2 — — — — (81) (81) (79) Total revenue $ 6,272 $ 4,384 $ 10,656 $ 2,262 $ 82 $ 2,344 $ — $ — $ — $ 13,000 Year Ended December 31, 2023 Investment Servicing Investment Management Other Total (Dollars in millions) Topic 606 revenue All other revenue Total Topic 606 revenue All other revenue Total Topic 606 revenue All other revenue Total 2023 Servicing fees $ 4,922 $ — $ 4,922 $ — $ — $ — $ — $ — $ — $ 4,922 Management fees — — — 1,876 — 1,876 — — — 1,876 Foreign exchange trading services 344 796 1,140 125 — 125 — — — 1,265 Securities finance 225 177 402 — 24 24 — — — 426 Software and processing fees 627 184 811 — — — — — — 811 Other fee revenue — 145 145 — 35 35 — — — 180 Total fee revenue 6,118 1,302 7,420 2,001 59 2,060 — — — 9,480 Net interest income — 2,740 2,740 — 19 19 — — — 2,759 Total other income — — — — — — — (294) (294) (294) Total revenue $ 6,118 $ 4,042 $ 10,160 $ 2,001 $ 78 $ 2,079 $ — $ (294) $ (294) $ 11,945 Year Ended December 31, 2022 Investment Servicing Investment Management Other Total (Dollars in millions) Topic 606 revenue All other revenue Total Topic 606 revenue All other revenue Total Topic 606 revenue All other revenue Total 2022 Servicing fees $ 5,087 $ — $ 5,087 $ — $ — $ — $ — $ — $ — $ 5,087 Management fees — — — 1,939 — 1,939 — — — 1,939 Foreign exchange trading services 363 908 1,271 82 — 82 — 23 23 1,376 Securities finance 233 164 397 — 19 19 — — — 416 Software and processing fees 599 190 789 — — — — — — 789 Other fee revenue — 46 46 — (47) (47) — — — (1) Total fee revenue 6,282 1,308 7,590 2,021 (28) 1,993 — 23 23 9,606 Net interest income — 2,551 2,551 — (7) (7) — — — 2,544 Total other income — (2) (2) — — — — — — (2) Total revenue $ 6,282 $ 3,857 $ 10,139 $ 2,021 $ (35) $ 1,986 $ — $ 23 $ 23 $ 12,148 Contract balances and contract costs As of December 31, 2024 and 2023, net receivables of $3.08 billion and $2.72 billion, respectively, are included in accrued interest and fees receivable and other assets, representing amounts billed or currently billable related to revenue from contracts with customers. As performance obligations are satisfied, we have an unconditional right to payment and billing is generally performed monthly or quarterly; therefore, we do not have significant contract assets. We had $144 million and $133 million of deferred revenue as of December 31, 2024 and 2023, respectively. Deferred revenue is a contract liability which represents payments received and accounts receivable recorded in advance of providing services and is included in accrued expenses and other liabilities in the consolidated statement of condition. In the year ended December 31, 2024, we recognized revenue of $122 million relating to deferred revenue of $133 million as of December 31, 2023. Transaction price allocated to the remaining performance obligations represents future, non-cancellable contracted revenue that has not yet been recognized, inclusive of deferred revenue that has been invoiced and non-cancellable amounts that will be invoiced and recognized as revenue in future periods. As of December 31, 2024, total remaining non-cancelable performance obligations for services and products not yet delivered, primarily comprised of software license sales and SaaS, were approximately $1.87 billion . We expect to recognize approximately half of this amount in revenue over the ne xt three years, wit h the remainder to be recognized thereafter. No adjustments are made to the promised amount of consideration for the effects of a significant financing component as the period between when we transfer a promised service to a customer and when the customer pays for that service is expected to be one year or less.

Non-U.S. Activities

Non-U.S. Activities	12 Months Ended
	Dec. 31, 2024
Segments, Geographical Areas [Abstract]
Non-U.S. Activities	Non-U.S. Activities We define our non-U.S. activities as those revenue-producing business activities that arise from clients that are generally serviced or managed outside the U.S. Due to the integrated nature of our business, precise segregation of our U.S. and non-U.S. activities is not possible. Subjective estimates, assumptions and other judgments are applied to quantify the financial results and assets related to our non-U.S. activities, including our application of funds transfer pricing, our asset and liability management policies and our allocation of certain indirect corporate expenses. Management periodically reviews and updates its processes for quantifying the financial results and assets related to our non-U.S. activities. The following table presents our U.S. and non-U.S. financial results for the periods indicated: Years Ended December 31, 2024 2023 2022 (In millions) Non-U.S. (1) U.S. Total Non-U.S. (1) U.S. Total Non-U.S. (1) U.S. Total Total revenue $ 5,485 $ 7,515 $ 13,000 $ 5,108 $ 6,837 $ 11,945 $ 5,170 $ 6,978 $ 12,148 Income before income tax expense 1,376 2,019 3,395 1,057 1,259 2,316 1,358 1,969 3,327 (1) Geographic mix is generally based on the domicile of the entity servicing the funds and is not necessarily representative of the underlying asset mix. Non-U.S. assets were $88.35 billion and $89.85 billion as of December 31, 2024 and 2023, respectively.

Parent Company Financial Statem

Parent Company Financial Statements	12 Months Ended
	Dec. 31, 2024
Condensed Financial Information Disclosure [Abstract]
Parent Company Financial Statements	Parent Company Financial Statements The following tables present the financial statements of the Parent Company without consolidation of its banking and non-banking subsidiaries, as of and for the years indicated: Statement of Income - Parent Company Years Ended December 31, (In millions) 2024 2023 2022 Cash dividends from consolidated banking subsidiary $ 1,250 $ 4,550 $ 1,500 Cash dividends from consolidated non-banking subsidiaries and unconsolidated entities 58 320 198 Other, net 516 274 69 Total revenue 1,824 5,144 1,767 Interest expense 1,170 975 426 Other expenses 239 198 93 Total expenses 1,409 1,173 519 Income tax (benefit) (232) (224) (121) Income (loss) before equity in undistributed income of consolidated subsidiaries and unconsolidated entities 647 4,195 1,369 Equity in undistributed income (loss) of consolidated subsidiaries and unconsolidated entities: Consolidated banking subsidiary 1,522 (2,464) 1,275 Consolidated non-banking subsidiaries and unconsolidated entities 518 213 130 Net income $ 2,687 $ 1,944 $ 2,774 Statement of Condition - Parent Company As of December 31, (In millions) 2024 2023 Assets: Interest-bearing deposits with consolidated banking subsidiary $ 438 $ 659 Trading account assets 499 454 Investment securities available-for-sale 378 279 Investments in: Consolidated banking subsidiary 27,504 25,391 Consolidated non-banking subsidiaries 10,487 10,055 Unconsolidated entities 114 111 Notes and other receivables from: Consolidated banking subsidiary 170 2 Consolidated non-banking subsidiaries and unconsolidated entities 9,211 6,816 Other assets 127 230 Total assets $ 48,928 $ 43,997 Liabilities: Notes and other payables to: Consolidated banking subsidiary $ — $ 68 Consolidated non-banking subsidiaries and unconsolidated entities 2,063 896 Accrued expenses and other liabilities 652 615 Long-term debt 20,887 18,619 Total liabilities 23,602 20,198 Shareholders’ equity 25,326 23,799 Total liabilities and shareholders’ equity $ 48,928 $ 43,997 Statement of Cash Flows - Parent Company Years Ended December 31, (In millions) 2024 2023 2022 Net cash provided by (used in) operating activities $ 622 $ 4,194 $ 1,608 Investing Activities: Net increase (decrease) in interest-bearing deposits with consolidated banking subsidiary 221 (199) 22 Proceeds from sales and maturities of available-for-sale securities 1,120 830 780 Purchases of available-for-sale securities (1,204) (836) (886) Investments in consolidated banking and non-banking subsidiaries (9,330) (10,784) (16,252) Sale or repayment of investment in consolidated banking and non-banking subsidiaries 7,875 7,920 15,092 Net cash used in investing activities (1,318) (3,069) (1,244) Financing Activities: Proceeds from issuance of long-term debt, net of issuance costs 4,281 6,221 3,731 Payments for long-term debt (2,000) (2,500) (1,500) Proceeds from issuance of preferred stock, net of issuance costs 2,350 — — Payments for redemption of preferred stock (1,500) — — Repurchases of common stock (1,319) (3,781) (1,500) Repurchases of common stock for employee tax withholding (83) (95) (123) Payments for cash dividends (1,033) (970) (972) Net cash provided by (used in) financing activities 696 (1,125) (364) Net change — — — Cash and due from banks at beginning of year — — — Cash and due from banks at end of year $ — $ — $ —

Subsequent Events

Subsequent Events	12 Months Ended
	Dec. 31, 2024
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events On January 27, 2025, we redeemed $500 million aggregate principal amount of 4.857% fixed-to-floating rate senior notes due 2026. On February 6, 2025, we redeemed $300 million aggregate principal amount of 1.746% fixed-to-floating rate senior notes due 2026. On February 6, 2025, we issued 750,000 depositary shares, each representing a 1/100th ownership interest in a share of fixed rate reset, non-cumulative perpetual preferred stock, Series K, without par value per share, with a liquidation preference of $100,000 per share (equivalent to $1,000 per depositary share), in a public offering. The aggregate proceeds, net of underwriting discounts, commissions and other issuance costs, were approximately $743 million.

Pay vs Performance Disclosure

Pay vs Performance Disclosure - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Pay vs Performance Disclosure
Net income	$ 2,687	$ 1,944	$ 2,774

Insider Trading Arrangements

Insider Trading Arrangements	3 Months Ended
	Dec. 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

Insider Trading Policies and Pr

Insider Trading Policies and Procedures	12 Months Ended
	Dec. 31, 2024
Insider Trading Policies and Procedures [Line Items]
Insider Trading Policies and Procedures Adopted	true

Cybersecurity Risk Management a

Cybersecurity Risk Management and Strategy Disclosure	12 Months Ended
	Dec. 31, 2024
Cybersecurity Risk Management, Strategy, and Governance [Line Items]
Cybersecurity Risk Management Processes for Assessing, Identifying, and Managing Threats [Text Block]	Cybersecurity risk is an integral part of our enterprise risk management and is managed as part of our overall information technology risk under the direction of our Chief Information Security Officer (CISO). Our CISO is an executive vice president at State Street and is responsible for our overall information security program. Before joining State Street, our CISO worked at a global information technology firm for more than 10 years, holding various positions, including senior vice president and chief security officer, and, prior to that, chief information security officer for that firm’s software division. Earlier on, she held leadership and general manager roles at an information management firm and an information security firm, each based in both the United States and Europe. She has worked with the World Economic Forum as a member of their Global Future Council on Cybersecurity. She holds a Doctor of Philosophy in information security and a Bachelor of Science in computer science. We recognize the significance of cyber-attacks and take steps to mitigate the risks associated with them. We invest in building and maintaining a mature cybersecurity program to leverage people, technology and processes to protect our systems and the data in our care. We have also implemented a program to help us better measure and manage cybersecurity risk, including those risks we face when we engage third parties for products and services. We design our information and systems access restrictions referencing the National Institute of Standards and Technology 800 53R5 and NIST CSF 2.0 Framework and use the supplemental requirements as implementation guidance. Our information security policies and standards are reviewed and updated for new regulatory changes and/or mandates. These standards are applicable to all corporate functions, business units, subsidiaries and controlled affiliates across the enterprise. Annual audits are conducted by internal and external parties to measure compliance and adherence to the standards. All employees and third parties that have access to our systems or networks are required to adhere to our cybersecurity policy and standards. Our centralized information security group provides education and training. This training includes a required annual online training class for all employees and third parties that have access to our systems or networks, multiple simulated phishing attacks and regular information security awareness materials. Every employee and contractor has a defined role in protecting systems and information of State Street, our clients and others. They are responsible for complying with the information security program, reporting suspected violations and threats; and protecting the confidentiality of information assets of us, our clients and others at all times. We employ Information Security Officers to help the business better understand and manage their information security risks, as well as to work with the centralized Global Cybersecurity team to drive awareness and compliance throughout the business. We use independent third parties to perform ethical hacks of key systems and penetration tests of our network and certain applications to help us better understand the effectiveness of our controls and to implement more effective controls, and we engage with third parties to conduct reviews of our overall program to help us better align our cybersecurity program with what is required of a large financial services organization. We have an incident response program in place that is designed to enable a coordinated response to mitigate the impact of cyber-attacks, recover from the attack and to drive the appropriate level of communication to internal and external stakeholders, including timely reporting of material incidents in accordance with SEC rules.
Cybersecurity Risk Management Processes Integrated [Flag]	true
Cybersecurity Risk Management Processes Integrated [Text Block]	Cybersecurity risk is an integral part of our enterprise risk management and is managed as part of our overall information technology risk under the direction of our Chief Information Security Officer (CISO). Our CISO is an executive vice president at State Street and is responsible for our overall information security program.
Cybersecurity Risk Management Third Party Engaged [Flag]	true
Cybersecurity Risk Third Party Oversight and Identification Processes [Flag]	true
Cybersecurity Risk Materially Affected or Reasonably Likely to Materially Affect Registrant [Flag]	false
Cybersecurity Risk Board of Directors Oversight [Text Block]	The TORC, an executive management committee, assesses and manages the effectiveness of our cybersecurity program, which is overseen by the TOPS of our Board. The TOPS receives regular cybersecurity updates throughout the year and is responsible for reviewing and approving the cybersecurity policy on an annual basis. We have not identified any risks from known cybersecurity threats, including as a result of any prior cybersecurity incidents, that have materially affected or are reasonably likely to materially affect us, including our operations, business strategy, results of operations or financial condition.
Cybersecurity Risk Board Committee or Subcommittee Responsible for Oversight [Text Block]	The TORC, an executive management committee, assesses and manages the effectiveness of our cybersecurity program, which is overseen by the TOPS of our Board.
Cybersecurity Risk Process for Informing Board Committee or Subcommittee Responsible for Oversight [Text Block]	The TOPS receives regular cybersecurity updates throughout the year and is responsible for reviewing and approving the cybersecurity policy on an annual basis.
Cybersecurity Risk Role of Management [Text Block]	Cybersecurity risk is an integral part of our enterprise risk management and is managed as part of our overall information technology risk under the direction of our Chief Information Security Officer (CISO). Our CISO is an executive vice president at State Street and is responsible for our overall information security program. Before joining State Street, our CISO worked at a global information technology firm for more than 10 years, holding various positions, including senior vice president and chief security officer, and, prior to that, chief information security officer for that firm’s software division. Earlier on, she held leadership and general manager roles at an information management firm and an information security firm, each based in both the United States and Europe. She has worked with the World Economic Forum as a member of their Global Future Council on Cybersecurity. She holds a Doctor of Philosophy in information security and a Bachelor of Science in computer science. We recognize the significance of cyber-attacks and take steps to mitigate the risks associated with them. We invest in building and maintaining a mature cybersecurity program to leverage people, technology and processes to protect our systems and the data in our care. We have also implemented a program to help us better measure and manage cybersecurity risk, including those risks we face when we engage third parties for products and services. We design our information and systems access restrictions referencing the National Institute of Standards and Technology 800 53R5 and NIST CSF 2.0 Framework and use the supplemental requirements as implementation guidance. Our information security policies and standards are reviewed and updated for new regulatory changes and/or mandates. These standards are applicable to all corporate functions, business units, subsidiaries and controlled affiliates across the enterprise. Annual audits are conducted by internal and external parties to measure compliance and adherence to the standards. All employees and third parties that have access to our systems or networks are required to adhere to our cybersecurity policy and standards. Our centralized information security group provides education and training. This training includes a required annual online training class for all employees and third parties that have access to our systems or networks, multiple simulated phishing attacks and regular information security awareness materials. Every employee and contractor has a defined role in protecting systems and information of State Street, our clients and others. They are responsible for complying with the information security program, reporting suspected violations and threats; and protecting the confidentiality of information assets of us, our clients and others at all times.
Cybersecurity Risk Management Positions or Committees Responsible [Flag]	true
Cybersecurity Risk Management Positions or Committees Responsible [Text Block]	Our CISO is an executive vice president at State Street and is responsible for our overall information security program.
Cybersecurity Risk Management Expertise of Management Responsible [Text Block]	Before joining State Street, our CISO worked at a global information technology firm for more than 10 years, holding various positions, including senior vice president and chief security officer, and, prior to that, chief information security officer for that firm’s software division. Earlier on, she held leadership and general manager roles at an information management firm and an information security firm, each based in both the United States and Europe. She has worked with the World Economic Forum as a member of their Global Future Council on Cybersecurity. She holds a Doctor of Philosophy in information security and a Bachelor of Science in computer science.
Cybersecurity Risk Process for Informing Management or Committees Responsible [Text Block]	The TOPS receives regular cybersecurity updates throughout the year and is responsible for reviewing and approving the cybersecurity policy on an annual basis.
Cybersecurity Risk Management Positions or Committees Responsible Report to Board [Flag]	true

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2024
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The accounting and financial reporting policies of State Street Corporation conform to U.S. GAAP. State Street Corporation, the Parent Company, is a financial holding company headquartered in Boston, Massachusetts. Unless otherwise indicated or unless the context requires otherwise, all references in these notes to consolidated financial statements to “State Street,” “we,” “us,” “our” or similar references mean State Street Corporation and its subsidiaries on a consolidated basis, including our principal banking subsidiary, State Street Bank. We have two lines of business: Investment Servicing provides a broad range of services and market and financing solutions to institutional clients, including mutual funds, collective investment funds and other investment pools, corporate and public retirement plans, insurance companies, investment managers, foundations and endowments worldwide. Through State Street Investment Services, State Street Global Markets ® and State Street Alpha ® , we offer a full range of back- and middle-office solutions, including custody, accounting and fund administration services for traditional and alternative assets, as well as multi-asset class investments; recordkeeping, client reporting and investment book of record, transaction management, loans, cash, derivatives and collateral services; investor services operations outsourcing; performance, risk and compliance analytics; financial data management to support institutional investors; foreign exchange, brokerage and other trading services; securities finance, including prime services products; and deposit and short-term investment facilities. Together with our middle- and back-office services, CRD’s front- and middle-office technology offerings form the foundation of State Street Alpha ® . Our State Street Alpha platform combines portfolio management, trading and execution, analytics and compliance tools, and advanced data aggregation and integration with other industry platforms and providers. Included in CRD’s technology offerings are Charles River Investment Management Solution, a front-office technology offering that automates and simplifies the institutional investment process across asset classes, from portfolio management and risk analytics through trading and post-trade settlement, with integrated compliance and managed data throughout; Charles River for Private Markets, an investment management solution for institutions investing in Private Credit, Private Equity, Real Estate, Infrastructure, and Funds; and Charles River Wealth Management Solution, which provides portfolio management, trading compliance and manager/sponsor communication capabilities to wealth managers, private banks and financial advisors. As the digital asset space continues to mature, we are building solutions to service, tokenize and safekeep digital assets. Our vision is to enable core digital asset infrastructure as a trusted provider of end-to-end solutions on a secure, interoperable blockchain. Investment Management
Consolidation	Consolidation Our consolidated financial statements include the accounts of the Parent Company and its majority- and wholly-owned and otherwise controlled subsidiaries, including State Street Bank. All material inter-company transactions and balances have been eliminated. Certain previously reported amounts have been reclassified to conform to current-year presentation. We consolidate subsidiaries in which we exercise control. Investments in unconsolidated subsidiaries, recorded in other assets, generally are accounted for under the equity method of accounting if we have the ability to exercise significant influence over the operations of the investee. For investments accounted for under the equity method, our share of income or loss is recorded in other fee revenue in our consolidated statement of income. Investments not meeting the criteria for equity-method treatment are measured at fair value through earnings, except for investments where a fair market value is not readily available, which are accounted for under the cost method of accounting.
Use of Estimates	Use of Estimates The preparation of consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions in the application of certain of our significant accounting policies that may materially affect the reported amounts of assets, liabilities, equity, revenue and expenses. As a result of unanticipated events or circumstances, actual results could differ from those estimates.
Foreign Currency Translation	Foreign Currency Translation The assets and liabilities of our operations with functional currencies other than the U.S. dollar are translated at month-end exchange rates, and revenue and expenses are translated at rates that approximate average monthly exchange rates. Gains or losses from the translation of the net assets of subsidiaries with functional currencies other than the U.S. dollar, net of related taxes, are recorded in AOCI, a component of shareholders’ equity.
Cash and Cash Equivalents	Cash and Cash Equivalents For purposes of the consolidated statement of cash flows, cash and cash equivalents are defined as cash and due from banks. Sanctions programs or government intervention may inhibit our ability to access cash and due from banks in certain accounts. For example, as of December 31, 2024 and 2023, we held such accounts in Russia that were subject to sanctions restrictions, inclusive of $0.8 billion and $1.5 billion, respectively, with our subcustodian, which is an affiliate of a large multinational bank, and with western European-based clearing agencies, for a total of approximately $1.3 billion and $1.9 billion, respectively. The reduction in balances with our subcustodian in Russia was a result of various actions taken related to our contractual arrangements that resulted in the derecognition of certain cash balances and related client liabilities. Cash and due from banks is evaluated as part of our allowance for credit losses.
Interest-Bearing Deposits with Banks	Interest-Bearing Deposits with Banks Interest-bearing deposits with banks generally consist of highly liquid, short-term investments maintained at the Federal Reserve Bank and other non-U.S. central banks with original maturities at the time of purchase of one month or less.
Securities Purchased Under Resale Agreements and Securities Sold Under Repurchase Agreements	Securities Purchased Under Resale Agreements and Securities Sold Under Repurchase Agreements Securities purchased under resale agreements and sold under repurchase agreements are accounted for as collateralized financing transactions, and are recorded in our consolidated statement of condition at the amounts at which the securities will be subsequently resold or repurchased, plus accrued interest. Our policy is to take possession or control of securities underlying resale agreements either directly or through agent banks, allowing borrowers the right of collateral substitution and/or short-notice termination. We revalue these securities daily to determine if additional collateral is necessary from the borrower to protect us against credit exposure. We can use these securities as collateral for repurchase agreements. For securities sold under repurchase agreements collateralized by our investment securities portfolio, the dollar value of the securities remains in investment securities in our consolidated statement of condition. Where a master netting agreement exists or when both parties are members of a common clearing organization, resale and repurchase agreements are recorded on a net basis when specific netting criteria are met.
Fee and Net Interest Income	Fee and Net Interest Income The majority of fees from investment servicing, investment management, securities finance, trading services and certain types of software and processing fees are recorded in our consolidated statement of income based on the consideration specified in contracts with our customers, and excludes taxes collected from customers subsequently remitted to governmental authorities. We recognize revenue as the services are performed or at a point in time depending on the nature of the services provided. Payments made to third party service providers are generally recognized on a gross basis when we control those services and are deemed to be the principal. Additional information about revenue from contracts with customers is provided in Note 25. Interest income on interest-earning assets and interest expense on interest-bearing liabilities are recorded in our consolidated statement of income as components of NII, and are generally based on the effective yield of the related financial asset or liability. We account for revenue from contracts with customers in accordance with ASC 606. The amount of revenue that we recognize is measured based on the consideration specified in contracts with our customers, and excludes taxes collected from customers subsequently remitted to governmental authorities. We recognize revenue when a performance obligation is satisfied over time as the services are performed or at a point in time depending on the nature of the services provided as further discussed below. Revenue recognition guidance related to contracts with customers excludes our NII, revenue earned on security lending transactions entered into as principal, realized gains/losses on securities, revenue earned on foreign exchange activity, loans and related fees, and gains/losses on hedging and derivatives, to which we apply other applicable U.S. GAAP guidance. For contracts with multiple performance obligations, or contracts that have been combined, we allocate the contracts’ transaction price to each performance obligation using our best estimate of the standalone selling price. Our contractual fees are negotiated on a customer by customer basis and are representative of standalone selling price utilized for allocating revenue when there are multiple performance obligations. Substantially all of our services are provided as a distinct series of daily performance obligations that the customer simultaneously benefits from as they are performed. Payments may be made to third party service providers and the expense is recognized gross when we control those services as we are deemed the principal. Contract durations may vary from short- to long-term or may be open ended. Termination notice periods are in line with general market practice and typically do not include termination penalties. Therefore, for substantially all of our revenues, the duration of the contract and the enforceable rights and obligations do not extend beyond the services that are performed daily or at the transaction level. In instances where we have substantive termination penalties, the duration of the contract may extend through the date of substantive termination penalties. Investment Servicing Revenue from contracts with customers related to servicing fees is recognized over time as our customers benefit from the custody, administration, accounting, transfer agency and other related asset services as they are performed. At contract inception, no revenue is estimated as the fees are dependent on assets under custody and/or administration and/or actual transactions which are susceptible to market factors outside of our control. Therefore, revenue is recognized using a time-based output method as the customers benefit from the services over time and as the assets under custody or transactions are known or determinable during each reporting period based on contractual fee schedules. Payments made to third party service providers, such as sub-custodians, are generally recognized gross as we control those services and are deemed to be a principal in such arrangements. Foreign exchange trading services revenue includes revenue generated from providing access and use of electronic trading platforms and other trading, transition management and brokerage services. Electronic FX services are dependent on the volume of actual transactions initiated through our electronic exchange platforms. Revenue is recognized over time using a time-based measure as access to, and use of, the electronic exchange platforms is made available to the customer and the activity is determinable. Revenue related to other trading, transition management and brokerage services is recognized when the customer obtains the benefit of such services which may be over time or at a point in time upon trade execution. Securities finance revenue is related to services for providing agency lending programs to State Street Global Advisors managed investment funds and third-party investment managers and asset owners. This securities finance revenue is recognized over time using a time-based measure as our customers benefit from these lending services. Revenue related to the front office solutions provided by CRD is primarily driven by the sale of licenses and SaaS arrangements, including professional services such as consulting and implementation services, software support and maintenance. Revenue for a sale of software to be installed on premise is recognized at a point in time when the customer benefits from obtaining access to and use of the software license. Revenue for a SaaS related arrangement is recognized over time as services are provided. Investment Management Revenue from contracts with customers related to investment management, investment research and investment advisory services provided through State Street Global Advisors is recognized over time as our customers benefit from the services as they are performed. Substantially all of our investment management fees are determined by the value of assets under management and the investment strategies employed. At contract inception, no revenue is estimated as the fees are dependent on assets under management which are susceptible to market factors outside of our control. Therefore, substantially all of our Investment Management services revenue is recognized using a time-based output method as the customers benefit from the services over time and as the assets under management are known or determinable during each reporting period based on contractual fee schedules. Payments made to third party service providers, such as payments to others in unitary fee arrangements, are generally recognized on a gross basis when State Street Global Advisors controls those services and is deemed to be a principal in such transactions.
Recent Accounting Developments	Recent Accounting Developments Relevant standards that were adopted during the year ended December 31, 2024: We adopted ASU 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures, effective December 31, 2024. The standard expands the reportable segment disclosure requirements, primarily through enhanced disclosures about significant segment expenses. This includes disclosure of segment expenses that are regularly provided to the CODM and other segment items that are included within each reported measure of segment profit or loss. The standard requires disclosure of the CODM’s title and position and how the CODM uses the reported measure of segment profit or loss in assessing segment performance and allocating resources. Refer to Note 24 for additional information. Relevant standards that were recently issued, but not yet adopted as of December 31, 2024 Standard Description Effective Date Effects on the financial statements or other significant matters ASU 2024-03, Income Statement (Subtopic 220-40): Reporting Comprehensive Income - Expense Disaggregation Disclosures The amendments require disclosure of information about certain costs and expenses in both interim and annual reporting periods. Specified information includes expense amounts relating to purchases of inventory, employee compensation, depreciation, intangible asset amortization, and selling expenses with the definition thereof. Annual reporting for period ending December 31, 2027 and for interim reporting in 2028 We are currently evaluating the disclosure impact of the new standard. ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures The amendments related to the rate reconciliation and income taxes paid disclosures and require disclosures of (1) consistent categories and greater disaggregation of information in the rate reconciliation and (2) income taxes paid disaggregated by jurisdiction. Additional amendments require (1) disclosures of pretax income (or loss) and income tax expense (or benefit) to be consistent with U.S. Securities and Exchange Commission regulations, and (2) remove disclosures that no longer are considered cost beneficial or relevant. Annual reporting for period ending December 31, 2025 We are currently evaluating the disclosure impact of the new standard. Additionally, we continue to evaluate other accounting standards that were recently issued, but not yet adopted as of December 31, 2024; none are expected to have a material impact to our financial statements.
Fair Value Measurements	Fair Value Measurements We carry trading account assets and liabilities, AFS debt securities, certain equity securities and various types of derivative financial instruments, at fair value in our consolidated statement of condition on a recurring basis. Changes in the fair values of these financial assets and liabilities are recorded either as components of our consolidated statement of income or as components of AOCI within shareholders’ equity in our consolidated statement of condition. We measure fair value for the above-described financial assets and liabilities in conformity with U.S. GAAP that governs the measurement of the fair value of financial instruments. Management believes that its valuation techniques and underlying assumptions used to measure fair value conform to the provisions of U.S. GAAP. We categorize the financial assets and liabilities that we carry at fair value based on a prescribed three-level valuation hierarchy. The hierarchy gives the highest priority to quoted prices in active markets for identical assets or liabilities (level 1) and the lowest priority to valuation methods using significant unobservable inputs (level 3). If the inputs used to measure a financial asset or liability cross different levels of the hierarchy, categorization is based on the lowest-level input that is significant to the fair-value measurement. Management’s assessment of the significance of a particular input to the overall fair-value measurement of a financial asset or liability requires judgment, and considers factors specific to that asset or liability. The three levels of the valuation hierarchy are described below. Level 1. Financial assets and liabilities with values based on unadjusted quoted prices for identical assets or liabilities in an active market. Our level 1 financial assets and liabilities primarily include positions in U.S. government securities and highly liquid U.S. and non-U.S. government fixed-income securities. Our level 1 financial assets also include actively traded exchange-traded equity securities. Level 2. Financial assets and liabilities with values based on 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 asset or liability. Level 2 inputs include the following: ▪ Quoted prices for similar assets or liabilities in active markets; ▪ Quoted prices for identical or similar assets or liabilities in non-active markets; ▪ Pricing models whose inputs are observable for substantially the full term of the asset or liability; and ▪ Pricing models whose inputs are derived principally from, or corroborated by, observable market information through correlation or other means for substantially the full term of the asset or liability. Our level 2 financial assets and liabilities primarily include non-U.S. debt securities carried in trading account assets and various types of fixed-income AFS investment securities, as well as various types of foreign exchange and interest rate derivative instruments. Fair value for our AFS investment securities categorized in level 2 is measured primarily using information obtained from independent third parties. This third-party information is subject to review by management as part of a validation process, which includes obtaining an understanding of the underlying assumptions and the level of market participant information used to support those assumptions. In addition, management compares significant assumptions used by third parties to available market information. Such information may include known trades or, to the extent that trading activity is limited, comparisons to market research information pertaining to credit expectations, execution prices and the timing of cash flows and, where information is available, back-testing. Derivative instruments categorized in level 2 predominantly represent foreign exchange contracts used in our trading activities, for which fair value is measured using discounted cash-flow techniques, with inputs consisting of observable spot and forward points, as well as observable interest rate curves. With respect to derivative instruments, we evaluate the impact on valuation of the credit risk of our counterparties. We consider factors such as the likelihood of default by our counterparties, our current and potential future net exposures and remaining maturities in determining the fair value. Valuation adjustments associated with derivative instruments were not material to those instruments for the years ended December 31, 2024 and 2023. Level 3. Financial assets and liabilities with values based on prices or valuation techniques that require inputs that are both unobservable in the market and significant to the overall measurement of fair value. These inputs reflect management’s judgment about the assumptions that a market participant would use in pricing the financial asset or liability, and are based on the best available information, some of which may be internally developed. The following provides a more detailed discussion of our financial assets and liabilities that we may categorize in level 3 and the related valuation methodology: • The fair value of certain foreign exchange contracts, primarily options, is measured using an option-pricing model. Because of a limited number of observable transactions, certain model inputs are not observable, such as implied volatility surface, but are derived from observable market information. Our level 3 financial assets and liabilities are similar in structure and profile to our level 1 and level 2 financial instruments, but they trade in less liquid markets, and the measurement of their fair value is therefore less observable.
Investment Securities	Investment securities held by us are classified as either trading account assets, AFS, HTM or equity securities held at fair value at the time of purchase and reassessed periodically, based on management’s intent. Generally, trading assets are debt and equity securities purchased in connection with our trading activities and, as such, are expected to be sold in the near term. Our trading activities typically involve active and frequent buying and selling with the objective of generating profits on short-term movements. AFS investment securities are those securities that we intend to hold for an indefinite period of time. AFS investment securities include securities utilized as part of our asset and liability management activities that may be sold in response to changes in interest rates, prepayment risk, liquidity needs or other factors. HTM securities are debt securities that management has the intent and the ability to hold to maturity. Trading assets are carried at fair value. Both realized and unrealized gains and losses on trading assets are recorded in other fee revenue in our consolidated statement of income. AFS securities are carried at fair value, with any allowance for credit losses recorded through the consolidated statement of income and after-tax net unrealized gains and losses are recorded in AOCI. Gains or losses realized on sales of AFS investment securities are computed using the specific identification method and are recorded in gains (losses) from sales of available-for-sale securities, net, in our consolidated statement of income. HTM investment securities are carried at cost, adjusted for amortization of premiums and accretion of discounts, with any allowance for credit losses recorded through the consolidated statement of income.
Loans and Allowance for Credit Losses	Loans are generally recorded at their principal amount outstanding, net of the allowance for credit losses, unearned income, and any net unamortized deferred loan origination fees. Loans that are classified as held-for-sale are measured at lower of cost or fair value on an individual basis. Interest income related to loans is recognized in our consolidated statement of income using the interest method, or on a basis approximating a level rate of return over the term of the loan. Fees received for providing loan commitments and letters of credit that we anticipate will result in loans typically are deferred and amortized to interest income over the term of the related loan, beginning with the initial borrowing. Fees on commitments and letters of credit are amortized to software and processing fees over the commitment period when funding is not known or expected.
Goodwill and Other Intangible Assets	Goodwill represents the excess of the cost of an acquisition over the fair value of the net tangible and other intangible assets acquired. Other intangible assets represent purchased long-lived intangible assets, primarily client relationships, that can be distinguished from goodwill because of contractual rights or because the asset can be exchanged on its own or in combination with a related contract, asset or liability. Goodwill is not amortized, but is reviewed for impairment annually or more frequently if circumstances arise or events occur that indicate an impairment of the carrying amount may exist. Other intangible assets, which are subject to evaluation for impairment, are mainly related to client relationships, which are amortized on a straight-line basis over periods ranging from five three sixteen
Derivative Financial Instruments	Derivative Financial Instruments We use derivative financial instruments to support our clients’ needs and to manage our interest rate, currency and other market risks. These financial instruments consist of FX contracts such as forwards, futures and options contracts; interest rate contracts such as interest rate swaps (cross currency and single currency) and futures; and other derivative contracts. Derivative instruments used for risk management purposes that are highly effective in offsetting the risk being hedged are generally designated as hedging instruments in hedge accounting relationships, while others are economic hedges and not designated in hedge accounting relationships. Derivatives in hedge accounting relationships are disclosed according to the type of hedge, such as fair value, cash flow or net investment. Derivatives designated as hedging instruments in hedge accounting relationships are carried at fair value with change in fair value recognized in the consolidated statement of income or other comprehensive income (OCI), as appropriate. Derivatives not designated in hedge accounting relationships include those derivatives entered into to support client needs and derivatives used to manage interest rate, currency and other market risks associated with certain assets and liabilities. Such derivatives are carried at fair value with changes in fair value recognized in the consolidated statement of income. Derivatives Not Designated as Hedging Instruments We provide foreign exchange forward contracts and options in support of our client needs, and also act as a dealer in the currency markets. As part of our trading activities, we assume positions in both the foreign exchange and interest rate markets by buying and selling cash instruments and using derivative financial instruments, including foreign exchange forward contracts, foreign exchange and interest rate options, interest rate forward contracts, and interest rate futures. The entire change in the fair value of derivatives utilized in our trading activities are recorded in foreign exchange trading services revenue. We also utilize derivatives in our asset and liability management activities and to manage other marke t risks. The entire change in fair value of such derivatives are recorded in net interest income and other fee revenue, respectively. We enter into stable value wrap derivative contracts with unaffiliated stable value funds that allow a stable value fund to provide book value coverage to its participants. These derivatives contracts qualify as guarantees as described in Note 12. We grant deferred cash awards to certain of our employees as part of our employee incentive compensation plans. We account for these awards as derivative financial instruments, as the underlying referenced shares are not equity instruments of ours. The fair value of these derivatives is referenced to the value of units in State Street-sponsored investment funds or funds sponsored by other unrelated entities. We re-measure these derivatives to fair value quarterly, and record the change in value in compensation and employee benefits expenses in our consolidated statement of income. Derivatives Designated as Hedging Instruments In connection with our asset and liability management activities, we use derivative financial instruments to manage our interest rate risk and foreign currency risk for certain assets and liabilities. At both the inception of the hedge and on an ongoing basis, we formally assess and document the effectiveness of a derivative designated in a hedging relationship and the likelihood that the derivative will be an effective hedge in future periods. We discontinue hedge accounting prospectively when we determine that the derivative is no longer highly effective in offsetting changes in fair value or cash flows of the underlying risk being hedged, the derivative expires, terminates or is sold, or management discontinues the hedge designation. The risk management objective of a highly effective hedging strategy that qualifies for hedge accounting must be formally documented. The hedge documentation includes the derivative hedging instrument, the asset or liability or forecasted transaction, type of risk being hedged and method for assessing hedge effectiveness of the derivative prospectively and retrospectively. We use quantitative methods including regression analysis and cumulative dollar offset method, comparing the change in the fair value of the derivative to the change in fair value or the cash flows of the hedged item. We may also utilize qualitative methods such as matching critical terms and evaluation of any changes in those critical terms. Effectiveness is assessed and documented quarterly and if determined that the derivative is not highly effective at hedging the designated risk hedge accounting is discontinued. Fair Value Hedges Derivatives designated as fair value hedges are utilized to mitigate the risk of changes in the fair values of recognized assets and liabilities, including long-term debt and AFS securities. We use interest rate and foreign exchange contracts in this manner to manage our exposure to changes in the fair value of hedged items caused by changes in interest rates and foreign exchange rates, respectively.
Offsetting Arrangements	Certain of our transactions are subject to master netting agreements that allow us to net receivables and payables by contract and settlement type. For those legally enforceable contracts, we net receivables and payables with the same counterparty on our statement of condition. In addition to netting receivables and payables with our derivatives counterparty where a legal and enforceable netting arrangement exists, we also net related cash collateral received and transferred up to the fair value exposure amount. With respect to our securities financing arrangements, we net balances outstanding on our consolidated statement of condition for those transactions that met the netting requirements and were transacted under a legally enforceable netting arrangement with the counterparty. Securities received as collateral under securities financing or derivatives transactions can be transferred as collateral in many instances. The securities received as proceeds under secured lending transactions are recorded at a value that approximates fair value in other assets in our consolidated statement of condition with a related liability to return the collateral, if we have the right to transfer or re-pledge the collateral.
Commitments	In the ordinary course of business, we and our subsidiaries are involved in disputes, litigation, and governmental or regulatory inquiries and investigations, both pending and threatened. These matters, if resolved adversely against us or settled, may result in monetary awards or payments, fines and penalties or require changes in our business practices. The resolution or settlement of these matters is inherently difficult to predict. Based on our assessment of these pending matters, we do not believe that the amount of any judgment, settlement or other action arising from any pending matter is likely to have a material adverse effect on our consolidated financial condition. However, an adverse outcome or development in certain of the matters described below could have a material adverse effect on our consolidated results of operations for the period in which such matter is resolved, or an accrual is determined to be required, on our consolidated financial condition, or on our reputation. We evaluate our needs for accruals of loss contingencies related to legal and regulatory proceedings on a case-by-case basis. When we have a liability that we deem probable, and we deem the amount of such liability can be reasonably estimated as of the date of our consolidated financial statements, we accrue our estimate of the amount of loss. We also consider a loss probable and establish an accrual when we make, or intend to make, an offer of settlement. Once established, an accrual is subject to subsequent adjustment as a result of additional information. The resolution of legal and regulatory proceedings and the amount of reasonably estimable loss (or range thereof) are inherently difficult to predict, especially in the early stages of proceedings. Even if a loss is probable, an amount (or range) of loss might not be reasonably estimated until the later stages of the proceeding due to many factors such as the presence of complex or novel legal theories, the discretion of governmental authorities in seeking sanctions or negotiating resolutions in civil and criminal matters, the pace and timing of discovery and other assessments of facts and the procedural posture of the matter (collectively, “factors influencing reasonable estimates”). As of December 31, 2024, our aggregate accruals for loss contingencies for legal, regulatory and related matters totaled approximately $15 million
Variable Interest Entities	We are involved, in the normal course of our business, with various types of special purpose entities, some of which meet the definition of VIEs. When evaluating a VIE for consolidation, we must determine whether or not we have a variable interest in the entity. Variable interests are investments or other interests that absorb portions of an entity’s expected losses or receive portions of the entity’s expected returns. If it is determined that we do not have a variable interest in the VIE, no further analysis is required and we do not consolidate the VIE. If we hold a variable interest in a VIE, we are required by U.S. GAAP to consolidate that VIE when we have a controlling financial interest in the VIE and therefore are deemed to be the primary beneficiary. We are determined to have a controlling financial interest in a VIE when we have both the power to direct the activities of the VIE that most significantly impact the VIE’s economic performance and the obligation to absorb losses or the right to receive benefits of the VIE that could potentially be significant to that VIE. This determination is evaluated periodically as facts and circumstances change. Asset-Backed Investment Securities We invest in various forms of ABS, which we carry in our investment securities portfolio. These ABS meet the U.S. GAAP definition of asset securitization entities, which are considered to be VIEs. We are not considered to be the primary beneficiary of these VIEs since we do not have control over their activities. Additional information about our ABS is provided in Note 3. Interests in Investment Funds In the normal course of business, we manage various types of investment funds through State Street Global Advisors in which our clients are investors, including State Street Global Advisors commingled investment vehicles and other similar investment structures. The majority of our AUM are contained within such funds. The services we provide to these funds generate management fee revenue. From time to time, we may invest cash in the funds in order for the funds to establish a performance history for newly-launched strategies, referred to as seed capital, or for other purposes.
Equity-Based Compensation	We record compensation expense for equity-based awards, such as deferred stock and performance awards, based on the closing price of our common stock on the date of grant, adjusted if appropriate, based on the eligibility of the award to receive dividends. Compensation expense related to equity-based and cash-settled stock awards with service-only conditions and terms that provide for a graded vesting schedule is recognized on a straight-line basis over the required service period for the entire award. Compensation expense related to equity-based awards with performance conditions and terms that provide for a graded vesting schedule is recognized over the requisite service period for each separately vesting tranche of the award, and is based on the probable outcome of the performance conditions at each reporting date. Compensation expense is adjusted for assumptions with respect to the estimated amount of awards that will be forfeited prior to vesting, and for employees who have met certain retirement eligibility criteria. Compensation expense for common stock awards granted to employees meeting early retirement eligibility criteria is fully expensed on the grant date. Dividend equivalents for certain equity-based awards are paid on stock units on a current basis prior to vesting and distribution.
Income Taxes	We use an asset-and-liability approach to account for income taxes. Our objective is to recognize the amount of taxes payable or refundable for the current year through charges or credits to the current tax provision, and to recognize deferred tax assets and liabilities for future tax consequences of temporary differences between amounts reported in our consolidated financial statements and their respective tax bases. The measurement of tax assets and liabilities is based on enacted tax laws and applicable tax rates. The effects of a tax position on our consolidated financial statements are recognized when we believe it is more likely than not that the position will be sustained. A valuation allowance is established if it is considered more likely than not that all or a portion of the deferred tax assets will not be realized. Deferred tax assets and liabilities recorded in our consolidated statement of condition are netted within the same tax jurisdiction.
Earnings Per Common Share	Basic EPS is calculated pursuant to the two-class method, by dividing net income available to common shareholders by the weighted-average common shares outstanding during the period. Diluted EPS is calculated pursuant to the two-class method, by dividing net income available to common shareholders by the total weighted-average number of common shares outstanding for the period plus the shares representing the dilutive effect of equity-based awards. The effect of equity-based awards is excluded from the calculation of diluted EPS in periods in which their effect would be anti-dilutive. The two-class method requires the allocation of undistributed net income between common and participating shareholders. Net income available to common shareholders, presented separately in our consolidated statement of income, is the basis for the calculation of both basic and diluted EPS. Participating securities are composed of unvested and fully vested SERP shares and fully vested deferred director stock awards, which are equity-based awards that contain non-forfeitable rights to dividends, and are considered to participate with the common stock in undistributed earnings.

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2024
Accounting Policies [Abstract]
Other Significant Accounting Policies	The following table identifies our other significant accounting policies and the note and page where a detailed description of each policy can be found: Fair Value Note 2 Page 130 Investment Securities Note 3 Page 136 Loans and Allowance for Credit Losses Note 4 Page 141 Goodwill and Other Intangible Assets Note 5 Page 146 Derivative Financial Instruments Note 10 Page 150 Offsetting Arrangements Note 11 Page 154 Contingencies Note 13 Page 158 Variable Interest Entities Note 14 Page 159 Equity-Based Compensation Note 18 Page 165 Income Taxes Note 22 Page 169 Earnings Per Common Share Note 23 Page 170 Revenue from Contracts with Customers Note 25 Page 173
New Accounting Standards Issued But Not Yet Adopted	Standard Description Effective Date Effects on the financial statements or other significant matters ASU 2024-03, Income Statement (Subtopic 220-40): Reporting Comprehensive Income - Expense Disaggregation Disclosures The amendments require disclosure of information about certain costs and expenses in both interim and annual reporting periods. Specified information includes expense amounts relating to purchases of inventory, employee compensation, depreciation, intangible asset amortization, and selling expenses with the definition thereof. Annual reporting for period ending December 31, 2027 and for interim reporting in 2028 We are currently evaluating the disclosure impact of the new standard. ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures The amendments related to the rate reconciliation and income taxes paid disclosures and require disclosures of (1) consistent categories and greater disaggregation of information in the rate reconciliation and (2) income taxes paid disaggregated by jurisdiction. Additional amendments require (1) disclosures of pretax income (or loss) and income tax expense (or benefit) to be consistent with U.S. Securities and Exchange Commission regulations, and (2) remove disclosures that no longer are considered cost beneficial or relevant. Annual reporting for period ending December 31, 2025 We are currently evaluating the disclosure impact of the new standard.

Fair Value (Tables)

Fair Value (Tables)	12 Months Ended
	Dec. 31, 2024
Fair Value Disclosures [Abstract]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis	The following tables present information with respect to our financial assets and liabilities carried at fair value in our consolidated statement of condition on a recurring basis as of the dates indicated: Fair Value Measurements on a Recurring Basis As of December 31, 2024 (In millions) Quoted Market Pricing Methods Pricing Methods Impact of Netting (1) Total Net Assets: Trading account assets: U.S. government securities $ 34 $ — $ — $ 34 Non-U.S. government securities — 121 — 121 Other — 613 — 613 Total trading account assets 34 734 — 768 Available-for-sale investment securities: U.S. Treasury and federal agencies: Direct obligations 23,525 — — 23,525 Mortgage-backed securities — 10,566 — 10,566 Total U.S. Treasury and federal agencies 23,525 10,566 — 34,091 Non-U.S. debt securities: Mortgage-backed securities — 2,430 — 2,430 Asset-backed securities — 1,868 — 1,868 Non-U.S. sovereign, supranational and non-U.S. agency — 13,939 — 13,939 Other — 2,821 — 2,821 Total non-U.S. debt securities — 21,058 — 21,058 Asset-backed securities: Student loans — 90 — 90 Collateralized loan obligations — 3,453 — 3,453 Non-agency CMBS and RMBS (2) — 4 — 4 Other — 91 — 91 Total asset-backed securities — 3,638 — 3,638 State and political subdivisions — 56 — 56 Other U.S. debt securities — 52 — 52 Total available-for-sale investment securities 23,525 35,370 — 58,895 Other assets: Derivative instruments: Foreign exchange contracts 16 29,422 1 $ (18,262) 11,177 Interest rate contracts 5 23 — (23) 5 Other derivative contracts 1 — — — 1 Total derivative instruments 22 29,445 1 (18,285) 11,183 Other 20 747 — — 767 Total assets carried at fair value $ 23,601 $ 66,296 $ 1 $ (18,285) $ 71,613 Liabilities: Accrued expenses and other liabilities: Derivative instruments: Foreign exchange contracts $ — $ 28,904 $ — $ (22,527) $ 6,377 Interest rate contracts — 1 — (1) — Other derivative contracts — 219 — — 219 Total derivative instruments — 29,124 — (22,528) 6,596 Total liabilities carried at fair value $ — $ 29,124 $ — $ (22,528) $ 6,596 (1) Represents counterparty netting against level 2 financial assets and liabilities where a legally enforceable master netting agreement exists between us and the counterparty. Netting also reflects asset and liability reductions of $1.86 billion and $6.10 billion, respectively, for cash collateral received from and provided to derivative counterparties. (2) Consists entirely of non-agency CMBS. Fair Value Measurements on a Recurring Basis As of December 31, 2023 (In millions) Quoted Market Pricing Methods Pricing Methods Impact of Netting (1) Total Net Assets: Trading account assets: U.S. government securities $ 36 $ — $ — $ 36 Non-U.S. government securities — 138 — 138 Other — 599 — 599 Total trading account assets 36 737 — 773 Available-for-sale investment securities: U.S. Treasury and federal agencies: Direct obligations 8,301 — — 8,301 Mortgage-backed securities — 10,755 — 10,755 Total U.S. Treasury and federal agencies 8,301 10,755 — 19,056 Non-U.S. debt securities: Mortgage-backed securities — 1,857 — 1,857 Asset-backed securities — 2,137 — 2,137 Non-U.S. sovereign, supranational and non-U.S. agency — 15,100 — 15,100 Other — 2,735 — 2,735 Total non-U.S. debt securities — 21,829 — 21,829 Asset-backed securities: Student loans — 114 — 114 Collateralized loan obligations — 2,527 — 2,527 Non-agency CMBS and RMBS (2) — 249 — 249 Other — 90 — 90 Total asset-backed securities — 2,980 — 2,980 State and political subdivisions — 355 — 355 Other U.S. debt securities — 306 — 306 Total available-for-sale investment securities 8,301 36,225 — 44,526 Other assets: Derivative instruments: Foreign exchange contracts — 19,690 4 $ (14,387) 5,307 Interest rate contracts — 13 — (13) — Total derivative instruments — 19,703 4 (14,400) 5,307 Other 11 640 — — 651 Total assets carried at fair value $ 8,348 $ 57,305 $ 4 $ (14,400) $ 51,257 Liabilities: Accrued expenses and other liabilities: Trading account liabilities: Derivative instruments: Foreign exchange contracts $ 1 $ 19,414 $ 1 $ (11,909) $ 7,507 Interest rate contracts 4 — — — 4 Other derivative contracts — 182 — — 182 Total derivative instruments 5 19,596 1 (11,909) 7,693 Total liabilities carried at fair value $ 5 $ 19,596 $ 1 $ (11,909) $ 7,693 (1) Represents counterparty netting against level 2 financial assets and liabilities where a legally enforceable master netting agreement exists between us and the counterparty. Netting also reflects asset and liability reductions of $3.90 billion and $1.41 billion, respectively, for cash collateral received from and provided to derivative counterparties. (2) Consists entirely of non-agency CMBS.
Carrying Value and Estimated Fair Value of Financial Instruments by Fair Value Hierarchy	The following tables present the reported amounts and estimated fair values of the financial assets and liabilities not carried at fair value, as they would be categorized within the fair value hierarchy, as of the dates indicated: Fair Value Hierarchy (In millions) Reported Amount Estimated Fair Value Quoted Market Prices in Active Markets (Level 1) Pricing Methods with Significant Observable Market Inputs (Level 2) Pricing Methods with Significant Unobservable Market Inputs (Level 3) December 31, 2024 Financial Assets: Cash and due from banks $ 3,145 $ 3,145 $ 3,145 $ — $ — Interest-bearing deposits with banks 112,957 112,957 — 112,957 — Securities purchased under resale agreements 6,679 6,679 — 6,679 — Investment securities held-to-maturity 47,727 41,906 5,354 36,552 — Net loans (1) 43,026 42,839 — 41,097 1,742 Other (2) 6,752 6,752 — 6,752 — Financial Liabilities: Deposits: Non-interest-bearing $ 33,180 $ 33,180 $ — $ 33,180 $ — Interest-bearing - U.S. 166,483 166,483 — 166,483 — Interest-bearing - non-U.S. 62,257 62,257 — 62,257 — Securities sold under repurchase agreements 3,681 3,681 — 3,681 — Other short-term borrowings 9,840 9,840 — 9,840 — Long-term debt 23,272 23,078 — 22,882 196 Other (2) 6,752 6,752 — 6,752 — (1) Includes $14 million of loans classified as held-for-sale that were measured at fair value in level 2 as of December 31, 2024. (2) Represents a portion of underlying client assets related to our prime services business, which clients have allowed us to transfer and re-pledge. Fair Value Hierarchy (In millions) Reported Amount Estimated Fair Value Quoted Market Prices in Active Markets (Level 1) Pricing Methods with Significant Observable Market Inputs (Level 2) Pricing Methods with Significant Unobservable Market Inputs (Level 3) December 31, 2023 Financial Assets: Cash and due from banks $ 4,047 $ 4,047 $ 4,047 $ — $ — Interest-bearing deposits with banks 87,665 87,665 — 87,665 — Securities purchased under resale agreements 6,692 6,692 — 6,692 — Investment securities held-to-maturity 57,117 51,503 8,409 43,094 — Net loans 36,496 36,335 — 34,308 2,027 Other (1) 6,866 6,866 — 6,866 — Financial Liabilities: Deposits: Non-interest-bearing $ 32,569 $ 32,569 $ — $ 32,569 $ — Interest-bearing - U.S. 121,738 121,738 — 121,738 — Interest-bearing - non-U.S. 66,663 66,663 — 66,663 — Securities sold under repurchase agreements 1,867 1,867 — 1,867 — Other short-term borrowings 3,660 3,660 — 3,660 — Long-term debt 18,839 18,417 — 18,216 201 Other (1) 6,866 6,866 — 6,866 — (1) Represents a portion of underlying client assets related to our prime services business, which clients have allowed us to transfer and re-pledge.

Investment Securities (Tables)

Investment Securities (Tables)	12 Months Ended
	Dec. 31, 2024
Investments, Debt and Equity Securities [Abstract]
Schedule of Marketable Securities	The following table presents the amortized cost, fair value and associated unrealized gains and losses of AFS and HTM investment securities as of the dates indicated: December 31, 2024 December 31, 2023 Amortized Gross Fair Amortized Gross Fair (In millions) Gains Losses Gains Losses Available-for-sale: U.S. Treasury and federal agencies: Direct obligations $ 23,539 $ 38 $ 52 $ 23,525 $ 8,427 $ 39 $ 165 $ 8,301 Mortgage-backed securities (1) 10,699 21 154 10,566 10,870 49 164 10,755 Total U.S. Treasury and federal agencies 34,238 59 206 34,091 19,297 88 329 19,056 Non-U.S. debt securities: Mortgage-backed securities 2,426 5 1 2,430 1,861 3 7 1,857 Asset-backed securities (2) 1,865 5 2 1,868 2,148 2 13 2,137 Non-U.S. sovereign, supranational and non-U.S. agency 13,954 54 69 13,939 15,159 73 132 15,100 Other (3) 2,787 38 4 2,821 2,733 39 37 2,735 Total non-U.S. debt securities 21,032 102 76 21,058 21,901 117 189 21,829 Asset-backed securities: Student loans (4) 89 1 — 90 113 1 — 114 Collateralized loan obligations (5) 3,447 6 — 3,453 90 — — 90 Non-agency CMBS and RMBS (6) 1 3 — 4 252 — 3 249 Other 90 1 — 91 2,530 3 6 2,527 Total asset-backed securities 3,627 11 — 3,638 2,985 4 9 2,980 State and political subdivisions 56 — — 56 356 — 1 355 Other U.S. debt securities (7) 53 — 1 52 314 — 8 306 Total available-for-sale securities (8)(9) $ 59,006 $ 172 $ 283 $ 58,895 $ 44,853 $ 209 $ 536 $ 44,526 Held-to-maturity: U.S. Treasury and federal agencies: Direct obligations $ 5,417 $ — $ 55 $ 5,362 $ 8,584 $ — $ 163 $ 8,421 Mortgage-backed securities (10) 36,101 2 5,677 30,426 39,472 7 5,271 34,208 Total U.S. Treasury and federal agencies 41,518 2 5,732 35,788 48,056 7 5,434 42,629 Non-U.S. debt securities: Non-U.S. sovereign, supranational and non-U.S. agency 3,673 7 73 3,607 5,757 8 153 5,612 Total non-U.S. debt securities 3,673 7 73 3,607 5,757 8 153 5,612 Asset-backed securities: Student loans (4) 2,536 4 29 2,511 3,298 2 62 3,238 Non-agency CMBS and RMBS (11) — — — — 6 18 — 24 Total asset-backed securities 2,536 4 29 2,511 3,304 20 62 3,262 Total held-to-maturity securities (8)(12) $ 47,727 $ 13 $ 5,834 $ 41,906 $ 57,117 $ 35 $ 5,649 $ 51,503 (1) As of December 31, 2024 and 2023, the total fair value included $4.36 billion and $5.54 billion, respectively, of agency CMBS and $6.20 billion and $5.21 billion, respectively, of agency MBS. (2) As of December 31, 2024 and 2023, the fair value includes non-U.S. collateralized loan obligations of $0.70 billion and $1.02 billion, respectively. (3) As of December 31, 2024 and 2023, the fair value includes non-U.S. corporate bonds of $2.54 billion and $2.36 billion, respectively. (4) Primarily comprised of securities guaranteed by the federal government with respect to at le ast 97% of defaulted principal and accrued interest on the underlying loans. (5) Excludes collateralized loan obligations in loan form. Refer to Note 4 for additi onal information. (6) Consists entirely of non-agency RMBS as of December 31, 2024 and entirely of non-agency CMBS as of December 31, 2023. (7) As of December 31, 2024 and 2023, the fair value of U.S. corporate bonds was $0.05 billion and $0.31 billion, respectively. (8) An immaterial amount of accrued interest related to HTM and AFS investment securities was excluded from the amortized cost basis for the period ended December 31, 2024. (9) As of December 31, 2024 and 2023, we had no allowance for credit losses on AFS investment securities. (10) As of December 31, 2024 and 2023, the total amortized cost included $5.18 billion and $5.23 billion of agency CMBS, respectively. (11) Consists entirely of non-agency RMBS as of December 31, 2023. (12) As of December 31, 2024, we had no allowance for credit losses on HTM investment securities. As of December 31, 2023, we had $1 million allowance for credit losses on HTM investment securities.
Schedule of Gross Pre-tax Unrealized Losses on Investment Securities	The following tables present the aggregate fair values of AFS investment securities that have been in a continuous unrealized loss position for less than 12 months, and those that have been in a continuous unrealized loss position for 12 months or longer, as of the dates indicated: As of December 31, 2024 Less than 12 months 12 months or longer Total (In millions) Fair Gross Fair Gross Fair Gross Available-for-sale: U.S. Treasury and federal agencies: Direct obligations $ 8,113 $ 25 $ 2,435 $ 27 $ 10,548 $ 52 Mortgage-backed securities 3,742 59 4,360 95 8,102 154 Total U.S. Treasury and federal agencies 11,855 84 6,795 122 18,650 206 Non-U.S. debt securities: Mortgage-backed securities 730 1 225 — 955 1 Asset-backed securities 387 — 506 2 893 2 Non-U.S. sovereign, supranational and non-U.S. agency 4,695 49 2,695 20 7,390 69 Other 312 2 116 2 428 4 Total non-U.S. debt securities 6,124 52 3,542 24 9,666 76 Asset-backed securities: Student loans 12 — — — 12 — Collateralized loan obligations 684 — — — 684 — Total asset-backed securities 696 — — — 696 — State and political subdivisions — — 26 — 26 — Other U.S. debt securities 3 — 49 1 52 1 Total $ 18,678 $ 136 $ 10,412 $ 147 $ 29,090 $ 283 As of December 31, 2023 Less than 12 months 12 months or longer Total (In millions) Fair Gross Fair Gross Fair Gross Available-for-sale: U.S. Treasury and federal agencies: Direct obligations $ 333 $ 2 $ 5,416 $ 163 $ 5,749 $ 165 Mortgage-backed securities 961 6 6,512 158 7,473 164 Total U.S. Treasury and federal agencies 1,294 8 11,928 321 13,222 329 Non-U.S. debt securities: Mortgage-backed securities 424 1 719 6 1,143 7 Asset-backed securities 358 — 1,052 13 1,410 13 Non-U.S. sovereign, supranational and non-U.S. agency 3,972 7 5,788 125 9,760 132 Other 50 — 893 37 943 37 Total non-U.S. debt securities 4,804 8 8,452 181 13,256 189 Asset-backed securities: Collateralized loan obligations 183 — 1,605 6 1,788 6 Non-agency CMBS and RMBS 35 — 180 3 215 3 Total asset-backed securities 218 — 1,785 9 2,003 9 State and political subdivisions 64 — 104 1 168 1 Other U.S. debt securities 3 — 303 8 306 8 Total $ 6,383 $ 16 $ 22,572 $ 520 $ 28,955 $ 536
Investments Classified by Contractual Maturity Date	The following table presents the amortized cost and the fair value of contractual maturities of debt investment securities as of December 31, 2024. The maturities of certain ABS, MBS and collateralized mortgage obligations are based on expected principal payments. Actual maturities may differ from these expected maturities since certain borrowers have the right to prepay obligations with or without prepayment penalties. As of December 31, 2024 (In millions) Under 1 Year 1 to 5 Years 6 to 10 Years Over 10 Years Total Amortized Cost Fair Value Amortized Cost Fair Value Amortized Cost Fair Value Amortized Cost Fair Value Amortized Cost Fair Value Available-for-sale: U.S. Treasury and federal agencies: Direct obligations $ 8,619 $ 8,625 $ 13,485 $ 13,474 $ 1,435 $ 1,426 $ — $ — $ 23,539 $ 23,525 Mortgage-backed securities 49 49 1,824 1,819 2,517 2,493 6,309 6,205 10,699 10,566 Total U.S. Treasury and federal agencies 8,668 8,674 15,309 15,293 3,952 3,919 6,309 6,205 34,238 34,091 Non-U.S. debt securities: Mortgage-backed securities 58 58 427 427 38 38 1,903 1,907 2,426 2,430 Asset-backed securities 276 276 279 279 1,005 1,007 305 306 1,865 1,868 Non-U.S. sovereign, supranational and 2,706 2,700 10,138 10,136 1,110 1,103 — — 13,954 13,939 Other 371 371 2,314 2,346 102 104 — — 2,787 2,821 Total non-U.S. debt securities 3,411 3,405 13,158 13,188 2,255 2,252 2,208 2,213 21,032 21,058 Asset-backed securities: Student loans 23 24 — — 12 12 54 54 89 90 Collateralized loan obligations 37 37 78 78 1,874 1,877 1,458 1,461 3,447 3,453 Non-agency CMBS and RMBS — — — — — — 1 4 1 4 Other — — 90 91 — — — — 90 91 Total asset-backed securities 60 61 168 169 1,886 1,889 1,513 1,519 3,627 3,638 State and political subdivisions 30 30 26 26 — — — — 56 56 Other U.S. debt securities 30 29 23 23 — — — — 53 52 Total $ 12,199 $ 12,199 $ 28,684 $ 28,699 $ 8,093 $ 8,060 $ 10,030 $ 9,937 $ 59,006 $ 58,895 Held-to-maturity: U.S. Treasury and federal agencies: Direct obligations $ 4,557 $ 4,521 $ 851 $ 832 $ 1 $ 1 $ 8 $ 8 $ 5,417 $ 5,362 Mortgage-backed securities 134 120 1,711 1,559 3,308 2,788 30,948 25,959 36,101 30,426 Total U.S. Treasury and federal agencies 4,691 4,641 2,562 2,391 3,309 2,789 30,956 25,967 41,518 35,788 Non-U.S. debt securities: Non-U.S. sovereign, supranational and 1,409 1,397 2,044 1,998 220 212 — — 3,673 3,607 Total non-U.S. debt securities 1,409 1,397 2,044 1,998 220 212 — — 3,673 3,607 Asset-backed securities: Student loans 149 147 310 309 380 379 1,697 1,676 2,536 2,511 Total asset-backed securities 149 147 310 309 380 379 1,697 1,676 2,536 2,511 Total $ 6,249 $ 6,185 $ 4,916 $ 4,698 $ 3,909 $ 3,380 $ 32,653 $ 27,643 $ 47,727 $ 41,906

Loans and Allowance for Credi_2

Loans and Allowance for Credit Losses (Tables)	12 Months Ended
	Dec. 31, 2024
Receivables [Abstract]
Net Loans	The following table presents our recorded investment in loans, by segment, as of the dates indicated: (In millions) December 31, 2024 December 31, 2023 Domestic (1) : Commercial and financial: Fund finance (2) $ 16,347 $ 13,697 Leveraged loans 2,742 2,412 Overdrafts 1,208 1,225 Collateralized loan obligations in loan form 50 150 Other (3) 3,220 2,512 Commercial real estate 2,842 3,069 Total domestic 26,409 23,065 Foreign (1) : Commercial and financial: Fund finance (2) 6,601 4,956 Leveraged loans 1,082 1,194 Overdrafts 772 1,047 Collateralized loan obligations in loan form 8,336 6,369 Total foreign 16,791 13,566 Total loans (4) 43,200 36,631 Allowance for credit losses (174) (135) Loans, net of allowance $ 43,026 $ 36,496 (1) Domestic and foreign categorization is based on the borrower’s country of domicile. (2) Fund finance loans include primarily $11.54 billion private equity capital call finance loans, $8.09 billion loans to real money funds and $1.44 billion loans to business development companies as of December 31, 2024, compared to $9.69 billion private equity capital call finance loans, $6.63 billion loans to real money funds and $1.05 billion loans to business development companies as of December 31, 2023. (3) Includes $3.01 billion securities finance loans and $214 million loans to municipalities as of December 31, 2024 and $2.23 billion securities finance loans, $276 million loans to municipalities and $5 million other loans as of December 31, 2023. (4) As of December 31, 2024, excluding overdrafts, floating rate loans totaled $38.46 billion and fixed rate loans totaled $2.76 billion. We have entered into interest rate swap agreements to hedge the forecasted cash flows associated with EURIBOR indexed floating-rate loans. See Note 10 for additional details.
Recorded Investment in Each Class of Total Loans and Leases by Credit Quality Indicator	The following tables present our recorded loans to counterparties by risk rating, as noted above, as of the dates indicated: December 31, 2024 Commercial and Financial Commercial Real Estate Total Loans (In millions) Investment grade $ 35,831 $ 1,969 $ 37,800 Speculative 4,278 409 4,687 Special mention 187 62 249 Substandard 48 211 259 Doubtful — 191 191 Total (1)(2) $ 40,344 $ 2,842 $ 43,186 December 31, 2023 Commercial and Financial Commercial Real Estate Total Loans (In millions) Investment grade $ 29,737 $ 2,287 $ 32,024 Speculative 3,546 449 3,995 Special mention 242 62 304 Substandard 14 224 238 Doubtful 23 47 70 Total (1) $ 33,562 $ 3,069 $ 36,631 (1) Loans include $1.98 billion and $2.27 billion of overdrafts as of December 31, 2024 and 2023, respectively. Overdrafts are short-term in nature and do not present a significant credit risk to us. As of December 31, 2024, $1.84 billion overdrafts were investment grade and $0.14 billion overdrafts were speculative. (2) Total does not include $14 million of loans classified as held-for-sale as of December 31, 2024. The following table presents the amortized cost basis, by year of origination and credit quality indicator as of December 31, 2024. For origination years before the fifth annual period, we present the aggregate amortized cost basis of loans. For purchased loans, the date of issuance is used to determine the year of origination, not the date of acquisition. For modified, extended or renewed lending arrangements, we evaluate whether a credit event has occurred which would consider the loan to be a new arrangement. (In millions) 2024 2023 2022 2021 2020 Prior Revolving Loans Total (1) Domestic loans: Commercial and financial: Risk Rating: Investment grade $ 1,946 $ 223 $ 89 $ 47 $ 6 $ 197 $ 18,044 $ 20,552 Speculative 1,834 173 154 387 53 155 136 2,892 Special mention 47 10 — 54 — — — 111 Substandard — — 12 — — — — 12 Total commercial and financing $ 3,827 $ 406 $ 255 $ 488 $ 59 $ 352 $ 18,180 $ 23,567 Commercial real estate: Risk Rating: Investment grade $ 41 $ 63 $ 488 $ 278 $ 128 $ 971 $ — $ 1,969 Speculative — 153 20 69 100 67 — 409 Special mention — — — — — 62 — 62 Substandard — — — — — 211 — 211 Doubtful — — — — — 191 — 191 Total commercial real estate $ 41 $ 216 $ 508 $ 347 $ 228 $ 1,502 $ — $ 2,842 Non-U.S. loans: Commercial and financial: Risk Rating: Investment grade $ 4,243 $ 1,796 $ 1,152 $ 2,187 $ — $ — $ 5,901 $ 15,279 Speculative 607 174 44 246 46 43 226 1,386 Special mention — 35 26 15 — — — 76 Substandard — — — 36 — — — 36 Total commercial and financing $ 4,850 $ 2,005 $ 1,222 $ 2,484 $ 46 $ 43 $ 6,127 $ 16,777 Total loans (2) $ 8,718 $ 2,627 $ 1,985 $ 3,319 $ 333 $ 1,897 $ 24,307 $ 43,186 (1) Any reserve associated with accrued interest is not material. As of December 31, 2024, accrued interest receivable of $327 million included in the amortized cost basis of loans has been excluded from the amortized cost basis within this table. (2) Total does not include $14 million of loans classified as held-for-sale as of December 31, 2024. The following table presents the amortized cost basis, by year of origination and credit quality indicator as of December 31, 2023: (In millions) 2023 2022 2021 2020 2019 Prior Revolving Loans Total (1) Domestic loans: Commercial and financial: Risk Rating: Investment grade $ 1,399 $ 120 $ 199 $ 8 $ 272 $ 5 $ 15,476 $ 17,479 Speculative 615 285 747 149 291 141 81 2,309 Special mention — 4 164 — 16 — — 184 Doubtful 5 — 18 — — — — 23 Total commercial and financing $ 2,019 $ 409 $ 1,128 $ 157 $ 579 $ 146 $ 15,557 $ 19,995 Commercial real estate: Risk Rating: Investment grade $ 216 $ 500 $ 498 $ 100 $ 375 $ 598 $ — $ 2,287 Speculative — 20 31 50 49 299 — 449 Special mention — — — — 22 40 — 62 Substandard — — — — 95 129 — 224 Doubtful — — — — — 47 — 47 Total commercial real estate $ 216 $ 520 $ 529 $ 150 $ 541 $ 1,113 $ — $ 3,069 Non-U.S. loans: Commercial and financial: Risk Rating: Investment grade $ 2,943 $ 1,956 $ 2,518 $ — $ — $ — $ 4,841 $ 12,258 Speculative 394 135 481 88 109 18 12 1,237 Special mention — — 29 29 — — — 58 Substandard — — — — — 14 — 14 Total commercial and financing $ 3,337 $ 2,091 $ 3,028 $ 117 $ 109 $ 32 $ 4,853 $ 13,567 Total loans $ 5,572 $ 3,020 $ 4,685 $ 424 $ 1,229 $ 1,291 $ 20,410 $ 36,631 (1) Any reserve associated with accrued interest is not material. As of December 31, 2023, accrued interest receivable of $318 million included in the amortized cost basis of loans has been excluded from the amortized cost basis within this table.
Schedule of Activity in the Allowance for Loan Losses	The following tables present the activity in the allowance for credit losses by portfolio and class for the years ended December 31, 2024 and 2023: Year End December 31, 2024 Commercial and Financial (In millions) Leveraged Loans Other Loans (1) Commercial Real Estate Held-to-Maturity Securities Off-Balance Sheet Commitments Total Allowance for credit losses: Beginning balance $ 72 $ 3 $ 60 $ 1 $ 14 $ 150 Provision 13 1 67 (1) (5) 75 Charge-offs (2) (17) — (25) — — (42) Ending balance $ 68 $ 4 $ 102 $ — $ 9 $ 183 (1) Includes $3 million allowance for credit losses on Fund Finance loans and $1 million on other loans. (2) Related to the sale of commercial real estate and leveraged loans in 2024. Year Ended December 31, 2023 Commercial and Financial (In millions) Leveraged Loans Other Loans (1) Commercial Real Estate Available-for-sale securities Held-to-Maturity Securities Off-Balance Sheet Commitments Total Allowance for credit losses: Beginning balance $ 73 $ 4 $ 19 $ 2 $ — $ 23 $ 121 Provision 16 (1) 41 (2) 1 (9) 46 Charge-offs (2) (17) — — — — — (17) Ending balance $ 72 $ 3 $ 60 $ — $ 1 $ 14 $ 150 (1) Includes $3 million allowance for credit losses on Fund Finance loans and $1 million on other loans. (2) Related to the sale of leveraged loans in 2023.

Goodwill and Other Intangible_2

Goodwill and Other Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2024
Goodwill and Intangible Assets Disclosure [Abstract]
Changes in the Carrying Amount of Goodwill	The following table presents changes in the carrying amount of goodwill during the periods indicated for each of our goodwill reporting units: (In millions) Investment Investment Total Goodwill: Ending balance December 31, 2022 $ 7,232 $ 263 $ 7,495 Acquisitions 44 — 44 Foreign currency translation 70 2 72 Ending balance December 31, 2023 7,346 265 7,611 Acquisitions (1) 189 — 189 Foreign currency translation (107) (2) (109) Ending balance December 31, 2024 $ 7,428 $ 263 $ 7,691 (1)
Schedule of Finite-Lived Intangible Assets	The following table presents changes in the net carrying amount of other intangible assets during the periods indicated: (In millions) Investment Investment Total Other intangible assets: Ending balance December 31, 2022 $ 1,495 $ 49 $ 1,544 Amortization (217) (22) (239) Foreign currency translation 15 — 15 Ending balance December 31, 2023 1,293 27 1,320 Acquisitions 7 13 20 Amortization (216) (14) (230) Foreign currency translation (21) — (21) Ending balance December 31, 2024 $ 1,063 $ 26 $ 1,089 The following tables present the gross carrying amount, accumulated amortization and net carrying amount of other intangible assets by type as of the dates indicated: December 31, 2024 Gross Carrying Amount Accumulated Amortization Net Carrying Amount (In millions) Other intangible assets: Client relationships $ 2,706 $ (1,919) $ 787 Technology 401 (252) 149 Core deposits 677 (540) 137 Other 95 (79) 16 Total $ 3,879 $ (2,790) $ 1,089 December 31, 2023 Gross Carrying Amount Accumulated Amortization Net Carrying Amount (In millions) Other intangible assets: Client relationships $ 2,761 $ (1,808) $ 953 Technology 402 (216) 186 Core deposits 690 (516) 174 Other 85 (78) 7 Total $ 3,938 $ (2,618) $ 1,320
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense	Expected future amortization expense for other intangible assets recorded as of December 31, 2024 is as follows: (In millions) Future Amortization Years Ended December 31, 2025 $ 225 2026 202 2027 168 2028 122 2029 64

Other Assets (Tables)

Other Assets (Tables)	12 Months Ended
	Dec. 31, 2024
Other Assets [Abstract]
Components of Other Assets	The following table presents the components of other assets as of the dates indicated: (In millions) December 31, 2024 December 31, 2023 Securities borrowed (1) $ 37,451 $ 23,131 Derivative instruments, net 11,183 5,307 Bank-owned life insurance 3,856 3,742 Investments in joint ventures and other unconsolidated entities (2) 3,317 2,981 Collateral, net 3,216 2,983 Right-of-use assets 818 805 Prepaid expenses 738 598 Deferred tax assets, net of valuation allowance (3) 701 1,034 Accounts receivable 504 611 Income taxes receivable 144 246 Receivable for securities settlement 57 1,082 Other (4) 2,529 2,286 Total $ 64,514 $ 44,806 (1) Refer to Note 11, for further information on the impact of collateral on our financial statement presentation of securities borrowing and securities lending transactions. (2) Includes equity securities without readily determinable fair values that are accounted for under the ASC 321 measurement alternative of $341 million and $183 million as of December 31, 2024 and 2023, respectively. For the year ended December 31, 2024, no impairments were recognized in other fee revenue related to such equity securities. (3) Deferred tax assets and liabilities recorded in our consolidated statement of condition are netted within the same tax jurisdiction. (4) Includes advances of $1.04 billion and $1.15 billion as of December 31, 2024 and 2023, respectively.

Short-Term Borrowings (Tables)

Short-Term Borrowings (Tables)	12 Months Ended
	Dec. 31, 2024
Debt Disclosure [Abstract]
Schedule of Short-term Debt	The following tables present information with respect to the amounts outstanding and weighted-average interest rates of the primary components of our short-term borrowings as of and for the years ended December 31: (Dollars in millions) Securities Sold Under Other (1) 2024 2023 2024 2023 Balance as of December 31 $ 3,681 $ 1,867 $ 9,815 $ 3,500 Average outstanding during the year 3,163 3,904 11,128 849 Weighted-average interest rate as of year-end 5.62 % .08 % 4.77 % 3.03 % Weighted-average interest rate during the year 4.93 .87 5.19 5.12 (1) Primarily includes FHLB and Bank Term Funding Program borrowings. The following table presents information about these securities and the carrying value of the related repurchase agreements, including accrued interest, as of December 31, 2024. Securities Sold Repurchase Agreements (1) (In millions) Amortized Fair Value Amortized Term maturity (2) $ 3,588 $ 3,500 $ 3,505 Overnight maturity 875 861 176 Total $ 4,463 $ 4,361 $ 3,681 (1) Collateralized by investment securities. (2) Maturity is greater than 90 days.

Long-Term Debt (Tables)

Long-Term Debt (Tables)	12 Months Ended
	Dec. 31, 2024
Debt Disclosure [Abstract]
Schedule of Long-term Debt	(Dollars in millions) As of December 31, Issuance Date Maturity Date Coupon Rate Seniority Interest Due Dates 2024 2023 Parent Company and Non-Banking Subsidiary Issuances August 18, 2015 August 18, 2025 (1) 3.550 % Senior notes 2/18; 8/18 (2) $ 1,285 $ 1,265 August 3, 2023 August 3, 2026 5.272 % Senior notes 2/3; 8/3 (2) 1,203 1,211 October 22, 2024 October 22, 2027 4.330 % Senior notes 4/22, 10/22 (2) 1,189 — May 18, 2023 May 18, 2026 5.104 % Fixed-to-floating rate senior notes 5/18; 11/18 999 998 May 18, 2023 May 18, 2034 5.159 % Fixed-to-floating rate senior notes 5/18; 11/18 995 995 March 18, 2024 March 18, 2027 4.993 % Senior notes 3/18, 9/18 (2) 993 — August 20, 2024 February 20, 2029 4.530 % Fixed-to-floating rate senior notes 2/20; 8/20 (2) 989 — November 21, 2023 November 21, 2029 5.684 % Fixed-to-floating rate senior notes 5/21; 11/21 (2) 986 995 March 3, 2021 March 3, 2031 (1)(3) 2.200 % Senior subordinated notes 3/3; 9/3 845 845 October 22, 2024 October 22, 2032 4.675 % Fixed-to-floating rate senior notes 4/22; 10/22 (2) 789 — January 24, 2020 January 24, 2030 (1) 2.400 % Senior notes 1/24, 7/24 (2) 784 790 May 19, 2016 May 19, 2026 (1) 2.650 % Senior notes 5/19; 11/19 (2) 728 719 January 26, 2023 January 26, 2034 4.821 % Fixed-to-floating rate senior notes 1/26, 7/26 (2) 702 731 August 4, 2022 August 4, 2033 4.164 % Fixed-to-floating rate senior notes 2/4; 8/4 (2) 665 687 February 7, 2022 February 7, 2028 2.203 % Fixed-to-floating rate senior notes 2/7; 8/7 (2) 619 605 December 3, 2018 December 3, 2029 4.141 % Fixed-to-floating rate senior notes 6/3; 12/3 (2) 535 556 November 1, 2019 November 1, 2034 (3) 3.031 % Fixed-to-floating rate senior subordinated notes 5/1; 11/1 (2) 523 528 April 30, 2007 June 15, 2047 Floating-rate Junior subordinated debentures 3/15; 6/15; 9/15; 12/15 500 500 January 26, 2023 January 26, 2026 4.857 % Fixed-to-floating rate senior notes 1/26, 7/26 (2) 499 496 November 4, 2022 November 4, 2026 5.751 % Fixed-to-floating rate senior notes 5/4; 11/4 (2) 498 497 March 30, 2020 March 30, 2031 3.152 % Fixed-to-floating rate senior notes 3/30, 9/30 498 498 May 13, 2022 May 13, 2033 4.421 % Fixed-to-floating rate senior notes 5/13; 11/13 498 497 November 18, 2021 November 18, 2027 1.684 % Fixed-to-floating rate senior notes 5/18; 11/18 (2) 497 496 March 30, 2020 March 30, 2026 2.901 % Fixed-to-floating rate senior notes 3/30; 9/30 (2) 497 485 November 4, 2022 November 4, 2028 5.820 % Fixed-to-floating rate senior notes 5/4; 11/4 (2) 495 497 November 21, 2023 November 21, 2034 (3) 6.123 % Fixed-to-floating rate senior subordinated notes 5/21; 11/21 (2) 492 497 February 7, 2022 February 7, 2033 2.623 % Fixed-to-floating rate senior notes 2/7; 8/7 (2) 465 476 August 3, 2023 August 3, 2026 Floating-rate Senior notes 2/3; 5/3; 8/3; 11/3 299 299 February 7, 2022 February 6, 2026 1.746 % Fixed-to-floating rate senior notes 2/6; 8/6 (2) 299 290 October 22, 2024 October 22, 2027 Floating-rate Senior notes 1/22; 4/22; 7/22; 10/22 299 — June 21, 1996 June 15, 2026 (1) 7.350 % Senior notes 6/15; 12/15 150 150 May 15, 1998 May 15, 2028 Floating-rate Junior subordinated debentures 2/15; 5/15; 8/15; 11/15 100 100 December 15, 2014 December 16, 2024 (1) 3.300 % Senior notes 6/16; 12/16 (2) — 977 November 1, 2019 November 1, 2025 (4) 2.354 % Fixed-to-floating rate senior notes 5/1; 11/1 (2) — 972 State Street Bank issuances and lease obligations November 25, 2024 November 25, 2026 (1) 4.594 % Senior notes 5/25, 11/25 1,146 — November 25, 2024 November 23, 2029 (1) 4.782 % Senior notes 5/23, 11/23 796 — November 25, 2024 November 25, 2026 (1) Floating-rate Senior notes 2/25; 5/25; 8/25; 11/25 299 — Long-term finance leases and equipment financing 116 187 Total long-term debt $ 23,272 $ 18,839 (1) We may not redeem notes prior to their maturity. (2) We have entered into interest rate swap agreements, recorded as fair value hedges, to modify our interest expense on these senior and subordinated notes from a fixed rate to a floating rate. As of December 31, 2024 and 2023, the carrying value of long-term debt associated with these fair value hedges was $220 million and $184 million, respectively. Refer to Note 10 for additional information about fair value hedges. (3) The subordinated notes qualify for inclusion in tier 2 regulatory capital under current federal regulatory capital guidelines. (4) We redeemed the notes prior to original maturity date.

Derivative Financial Instrume_2

Derivative Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2024
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Notional Amounts of Outstanding Derivative Positions	The following table presents the aggregate contractual, or notional, amounts of derivative financial instruments including those entered into for trading and asset and liability management activities as of the dates indicated: (In millions) December 31, 2024 December 31, 2023 Derivatives not designated as hedging instruments: Interest rate contracts: Futures $ 47,222 $ 12,668 Foreign exchange contracts: Forward, swap and spot 2,612,945 2,528,115 Options purchased 466 851 Options written 145 544 Futures 359 197 Other: Futures 155 125 Stable value contracts (1) 25,271 28,704 Deferred value awards (2) 253 289 Derivatives designated as hedging instruments: Interest rate contracts: Swap agreements 33,302 20,333 Foreign exchange contracts: Forward and swap 10,260 9,777 (1) The notional value of the stable value contracts represents our maximum exposure. However, exposure to various stable value contracts is generally contractually limited to substantially lower amounts than the notional values. (2) Represents grants of deferred value awards to employees; refer to discussion in this note under “Derivatives Not Designated as Hedging Instruments.”
Schedule of Derivative Assets at Fair Value	The following table presents the fair value of derivative financial instruments, excluding the impact of master netting agreements, recorded in our consolidated statement of condition as of the dates indicated. Fair value measurement for derivatives is further discussed in Note 2, and the impact of master netting agreements is provided in Note 11. Derivative Assets (1) Derivative Liabilities (2) (In millions) December 31, 2024 December 31, 2023 December 31, 2024 December 31, 2023 Derivatives not designated as hedging instruments: Foreign exchange contracts $ 29,116 $ 19,498 $ 28,904 $ 19,153 Other derivative contracts 1 — 219 182 Total $ 29,117 $ 19,498 $ 29,123 $ 19,335 Derivatives designated as hedging instruments: Foreign exchange contracts $ 323 $ 196 $ — $ 263 Interest rate contracts 28 13 1 4 Total $ 351 $ 209 $ 1 $ 267 (1) Derivative assets are included within other assets in our consolidated statement of condition. (2) Derivative liabilities are included within other liabilities
Schedule of Derivative Liabilities at Fair Value	The following table presents the fair value of derivative financial instruments, excluding the impact of master netting agreements, recorded in our consolidated statement of condition as of the dates indicated. Fair value measurement for derivatives is further discussed in Note 2, and the impact of master netting agreements is provided in Note 11. Derivative Assets (1) Derivative Liabilities (2) (In millions) December 31, 2024 December 31, 2023 December 31, 2024 December 31, 2023 Derivatives not designated as hedging instruments: Foreign exchange contracts $ 29,116 $ 19,498 $ 28,904 $ 19,153 Other derivative contracts 1 — 219 182 Total $ 29,117 $ 19,498 $ 29,123 $ 19,335 Derivatives designated as hedging instruments: Foreign exchange contracts $ 323 $ 196 $ — $ 263 Interest rate contracts 28 13 1 4 Total $ 351 $ 209 $ 1 $ 267 (1) Derivative assets are included within other assets in our consolidated statement of condition. (2) Derivative liabilities are included within other liabilities
Impact of Derivative Financial Instruments on Statement of Income	The following table presents the impact of our use of derivative financial instruments on our consolidated statement of income for the periods indicated: Years Ended December 31, 2024 2023 2022 (In millions) Location of Gain (Loss) on Amount of Gain (Loss) on Derivative Recognized in Consolidated Statement of Income Derivatives not designated as hedging instruments: Foreign exchange contracts Foreign exchange trading services revenue $ 862 $ 803 $ 938 Foreign exchange contracts Interest expense 274 (54) (20) Interest rate contracts Foreign exchange trading services revenue 21 (2) 3 Other Derivative contracts Other fee revenue (12) (3) — Interest rate contracts Other fee revenue — — 1 Other derivative contracts (1) Compensation and employee benefits (189) (121) (89) Total $ 956 $ 623 $ 833 (1) Amount in 2024 reflects a deferred compensation expense acceleration of $79 million, related to prior period incentive compensation awards to align our deferred pay mix with peers. The following tables present the impact of our use of derivative financial instruments on our consolidated statement of income for the periods indicated: Years Ended December 31, Years Ended December 31, 2024 2023 2022 2024 2023 2022 (In millions) Location of Gain (Loss) on Derivative in Consolidated Statement of Income Amount of Gain Hedged Item in Fair Value Hedging Relationship Location of Gain (Loss) on Hedged Item in Consolidated Statement of Income Amount of Gain Derivatives designated as fair value hedges: Interest rate contracts Net interest income $ (55) $ (164) $ 676 Available-for-sale securities (1) Net interest income $ 55 $ 164 $ (676) Interest rate contracts Net interest income 17 202 (1,160) Long-term debt Net interest income (17) (202) 1,160 Foreign exchange contracts Other fee revenue 21 — — Available-for-sale securities Other fee revenue (21) — — Total $ (17) $ 38 $ (484) $ 17 $ (38) $ 484 ( 1) For the year ended December 31, 2024, approximately $93 million of net unrealized losses on AFS investment securities designated in fair value hedges were recognized in OCI compared to approximately $122 million of net unrealized losses in the same period of 2023. Years Ended December 31, Years Ended December 31, 2024 2023 2022 Location of Gain or (Loss) Reclassified from Accumulated Other Comprehensive Income into Income 2024 2023 2022 (In millions) Amount of Gain (Loss) Recognized in Other Comprehensive Income on Derivative Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Income into Income Derivatives designated as cash flow hedges: Interest rate contracts (1) $ (6) $ 14 $ (598) Net interest income $ (200) $ (210) $ (43) Foreign exchange contracts 59 91 156 Net interest income 254 2 92 Total derivatives designated as cash flow hedges $ 53 $ 105 $ (442) $ 54 $ (208) $ 49 Derivatives designated as net investment hedges: Foreign exchange contracts $ 540 $ (89) $ 291 $ — $ — $ — Total derivatives designated as net investment hedges 540 (89) 291 — — — Total $ 593 $ 16 $ (151) $ 54 $ (208) $ 49 ( 1) As of December 31, 2024, the maximum maturity date of the underlying hedged items is approximately 5.0 years.
Schedule of Carrying Amount of Hedged Assets and Liabilities	The following tables show the carrying amount and associated cumulative basis adjustments related to the application of hedge accounting that is included in the carrying amount of hedged assets and liabilities in fair value hedging relationships: December 31, 2024 Cumulative Fair Value Hedging Adjustment Increasing (Decreasing) the carrying amount (In millions) Carrying Amount of Hedged Assets/Liabilities Active De-designated (1) Long-term debt $ 15,951 $ (323) $ 103 Available-for-sale securities (2)(3) 18,666 (376) 1 December 31, 2023 Cumulative Fair Value Hedging Adjustment Increasing (Decreasing) the carrying amount (In millions) Carrying Amount of Hedged Assets/Liabilities Active De-designated (1) Long-term debt $ 12,463 $ (340) $ 156 Available-for-sale securities (2)(3) 11,260 (503) 3 (1) Represents hedged items no longer designated in qualifying fair value hedging relationships for which an associated basis adjustment exists at the balance sheet date. (2) Included in these amounts is the amortized cost of the financial assets designated in under the portfolio layer hedging relationships (hedged item is the hedged layer of a closed portfolio of financial assets expected to remain outstanding at the end of the hedging relationship). At December 31, 2024 and 2023, the amortized cost of the closed portfolios used in these hedging relationships was $3.32 billion and $685 million, respectively, of which $1.82 billion and $400 million, respectively, was designated under the portfolio layer hedging relationship. At December 31, 2024 and 2023, the cumulative adjustment associated with these hedging relationships was ($26) million and ($6) million, respectively. (3) Carrying amount represents amortized cost.

Offsetting Arrangements (Tables

Offsetting Arrangements (Tables)	12 Months Ended
	Dec. 31, 2024
Offsetting [Abstract]
Offsetting Assets	The following tables present information about the offsetting of assets related to derivative contracts and secured financing transactions, as of the dates indicated: Assets: December 31, 2024 Gross Amounts of Recognized Assets (1)(2) Gross Amounts Offset in Statement of Condition (3) Net Amounts of Assets Presented in Statement of Condition Gross Amounts Not Offset in Statement of Condition (In millions) Cash and Securities Received (4) Net Amount (5) Derivatives: Foreign exchange contracts $ 29,439 $ (16,424) $ 13,015 $ — $ 13,015 Interest rate contracts (6) 28 (1) 27 — 27 Other derivative contracts 1 — 1 — 1 Cash collateral and securities netting NA (1,860) (1,860) (1,197) (3,057) Total derivatives 29,468 (18,285) 11,183 (1,197) 9,986 Other financial instruments: Resale agreements and securities borrowing (7)(8) 276,151 (232,021) 44,130 (42,589) 1,541 Total derivatives and other financial instruments $ 305,619 $ (250,306) $ 55,313 $ (43,786) $ 11,527 Assets: December 31, 2023 Gross Amounts of Recognized Assets (1)(2) Gross Amounts Offset in Statement of Condition (3) Net Amounts of Assets Presented in Statement of Condition Gross Amounts Not Offset in Statement of Condition (In millions) Cash and Securities Received (4) Net Amount (5) Derivatives: Foreign exchange contracts $ 19,694 $ (10,496) $ 9,198 $ — $ 9,198 Interest rate contracts (6) 13 — 13 — 13 Cash collateral and securities netting NA (3,904) (3,904) (1,069) (4,973) Total derivatives 19,707 (14,400) 5,307 (1,069) 4,238 Other financial instruments: Resale agreements and securities borrowing (7)(8) 230,384 (200,561) 29,823 (28,016) 1,807 Total derivatives and other financial instruments $ 250,091 $ (214,961) $ 35,130 $ (29,085) $ 6,045 (1) Amounts include all transactions regardless of whether or not they are subject to an enforceable netting arrangement. (2) Refer to Note 1 and Note 2 for additional information about the measurement basis of derivative instruments. (3) Amounts subject to netting arrangements which have been determined to be legally enforceable and eligible for netting in the consolidated statement of condition. (4) Includes securities in connection with our securities borrowing transactions. (5) Includes amounts secured by collateral not determined to be subject to enforceable netting arrangements. (6) Variation margin payments presented as settlements rather than collateral. (7) Included in the $44.13 billion as of December 31, 2024 were $6.68 billion of resale agreements and $37.45 billion of collateral provided related to securities borrowing. Included in the $29.82 billion as of December 31, 2023 were $6.69 billion of resale agreements and $23.13 billion of collateral provided related to securities borrowing. Resale agreements and collateral provided related to securities borrowing were recorded in securities purchased under resale agreements and other assets, respectively, in our consolidated statement of condition. Refer to Note 12 for additional information with respect to principal securities finance transactions. (8) Offsetting of resale agreements primarily relates to our involvement in FICC, where we settle transactions on a net basis for payment and delivery through the Fedwire system. NA Not applicable
Offsetting Liabilities	The following tables present information about the offsetting of liabilities related to derivative contracts and secured financing transactions, as of the dates indicated: Liabilities: December 31, 2024 Gross Amounts of Recognized Liabilities (1)(2) Gross Amounts Offset in Statement of Condition (3) Net Amounts of Liabilities Presented in Statement of Condition Gross Amounts Not Offset in Statement of Condition (In millions) Cash and Securities Received (4) Net Amount (5) Derivatives: Foreign exchange contracts $ 28,904 $ (16,424) $ 12,480 $ — $ 12,480 Interest rate contracts (6) 1 (1) — — — Other derivative contracts 219 — 219 — 219 Cash collateral and securities netting NA (6,103) (6,103) (1,572) (7,675) Total derivatives 29,124 (22,528) 6,596 (1,572) 5,024 Other financial instruments: Repurchase agreements and securities lending (7)(8) 250,032 (232,021) 18,011 (17,835) 176 Total derivatives and other financial instruments $ 279,156 $ (254,549) $ 24,607 $ (19,407) $ 5,200 Liabilities: December 31, 2023 Gross Amounts of Recognized Liabilities (1)(2) Gross Amounts Offset in Statement of Condition (3) Net Amounts of Liabilities Presented in Statement of Condition Gross Amounts Not Offset in Statement of Condition (In millions) Cash and Securities Received (4) Net Amount (5) Derivatives: Foreign exchange contracts $ 19,416 $ (10,496) $ 8,920 $ — $ 8,920 Interest rate contracts (6) 4 — 4 — 4 Other derivative contracts 182 — 182 — 182 Cash collateral and securities netting NA (1,413) (1,413) (633) (2,046) Total derivatives 19,602 (11,909) 7,693 (633) 7,060 Other financial instruments: Repurchase agreements and securities lending (7)(8) 214,362 (200,561) 13,801 (13,306) 495 Total derivatives and other financial instruments $ 233,964 $ (212,470) $ 21,494 $ (13,939) $ 7,555 (1) Amounts include all transactions regardless of whether or not they are subject to an enforceable netting arrangement. (2) Refer to Note 1 and Note 2 for additional information about the measurement basis of derivative instruments. (3) Amounts subject to netting arrangements which have been determined to be legally enforceable and eligible for netting in the consolidated statement of condition. (4) Includes securities provided in connection with our securities lending transactions. (5) Includes amounts secured by collateral not determined to be subject to enforceable netting arrangements. (6) Variation margin payments presented as settlements rather than collateral. (7) Included in the $18.01 billion as of December 31, 2024 were $3.68 billion of repurchase agreements and $14.33 billion of collateral received related to securities lending transactions. Included in the $13.80 billion as of December 31, 2023 were $1.87 billion of repurchase agreements and $11.93 billion of collateral received related to securities lending transactions. Repurchase agreements and collateral received related to securities lending were recorded in securities sold under repurchase agreements and accrued expenses and other liabilities, respectively, in our consolidated statement of condition. Refer to Note 12 for additional information with respect to principal securities finance transactions. (8) Offsetting of repurchase agreements primarily relates to our involvement in FICC, where we settle transactions on a net basis for payment and delivery through the Fedwire system. NA Not applicable
Securities Sold and Securities Loaned Under Repurchase Agreements	The following table summarizes our repurchase agreements and securities lending transactions by category of collateral pledged and remaining maturity of these agreements as of the periods indicated: As of December 31, 2024 As of December 31, 2023 (In millions) Overnight and Continuous Up to 30 Days 30-90 Days Greater than 90 Days Total Overnight and Continuous Up to 30 Days 30-90 Days Greater than 90 Days Total Repurchase agreements: U.S. Treasury and agency securities $ 223,095 $ 350 $ 1,277 $ 2,500 $ 227,222 $ 196,212 $ — $ 185 $ 1,360 $ 197,757 Non-US sovereign debt — — — — — — — — — — Total 223,095 350 1,277 2,500 227,222 196,212 — 185 1,360 197,757 Securities lending transactions: US Treasury and agency securities 152 — — — 152 6 — — — 6 Corporate debt securities 193 — — — 193 278 — 3 — 281 Equity securities 11,181 13 — 4,519 15,713 7,128 20 13 2,291 9,452 Other (1) 6,752 — — — 6,752 6,866 — — — 6,866 Total 18,278 13 — 4,519 22,810 14,278 20 16 2,291 16,605 Gross amount of recognized liabilities for repurchase agreements and securities lending $ 241,373 $ 363 $ 1,277 $ 7,019 $ 250,032 $ 210,490 $ 20 $ 201 $ 3,651 $ 214,362 (1) Represents a security interest in underlying client assets related to our prime services business, which assets clients have allowed us to transfer and re-pledge.

Commitments and Guarantees (Tab

Commitments and Guarantees (Tables)	12 Months Ended
	Dec. 31, 2024
Commitments and Contingencies Disclosure [Abstract]
Schedule of Guarantor Obligations	The following table presents the aggregate gross contractual amounts of our off-balance sheet commitments and guarantees, as of the dates indicated: (In millions) December 31, 2024 December 31, 2023 Commitments: Unfunded credit facilities $ 34,191 $ 34,197 Guarantees (1) : Indemnified securities financing $ 310,814 $ 279,916 Standby letters of credit 908 1,510 (1) The potential losses associated with these guarantees equal the gross contractual amounts and do not consider the value of any collateral or reflect any participations to independent third parties.
Schedule of Repurchase Agreements	The following table summarizes the aggregate fair values of indemnified securities financing and related collateral, as well as collateral invested in indemnified repurchase agreements, as of the dates indicated: (In millions) December 31, 2024 December 31, 2023 Fair value of indemnified securities financing $ 310,814 $ 279,916 Fair value of cash and securities held by us, as agent, as collateral for indemnified securities financing 325,611 293,855 Fair value of collateral for indemnified securities financing invested in indemnified repurchase agreements 63,655 59,028 Fair value of cash and securities held by us or our agents as collateral for investments in indemnified repurchase agreements 68,507 63,105

Variable Interest Entities (Tab

Variable Interest Entities (Tables)	12 Months Ended
	Dec. 31, 2024
Equity Method Investments and Joint Ventures [Abstract]
Schedule of Variable Interest Entities	The following table presents the impact of our tax credit programs for which we have elected to apply proportional amortization accounting on our consolidated statement of income for the periods indicated: Years Ended December 31, (In millions) 2024 2023 Income (loss) recorded on investments within other fee revenue $ 29 $ 26 Income recorded in total revenue 29 26 Tax credits and benefits recognized in income tax expense 256 239 Proportional amortization recognized in income tax expense (207) (182) Net benefits included in income tax expense 49 57 Net benefit attributable to tax-advantaged investments included in the consolidated statement of income for which proportional amortization has been elected $ 78 $ 83

Shareholders' Equity (Tables)

Shareholders' Equity (Tables)	12 Months Ended
	Dec. 31, 2024
Equity [Abstract]
Schedule of Preferred Shares	The following table summarizes selected terms of each of the series of the preferred stock issued and outstanding as of December 31, 2024: Preferred Stock (1) : Issuance Date Depositary Shares Issued Ownership Interest Per Depositary Share Liquidation Preference Per Share Liquidation Preference Per Depositary Share Per Annum Dividend Rate Dividend Payment Frequency Carrying Value as of December 31, 2024 (In millions) Redemption Date (2) Series G April 2016 20,000,000 1/4,000th 100,000 25 5.35% (3) Quarterly $ 493 March 15, 2026 Series I January 2024 1,500,000 1/100th 100,000 1,000 6.700% through March 14, 2029; resets March 15, 2029 and every subsequent five Quarterly 1,481 March 15, 2029 Series J July 2024 850,000 1/100th 100,000 1,000 6.700% through September 14, 2029; resets September 15, 2029 and every subsequent five Quarterly 842 September 15, 2029 (1) The preferred stock and corresponding depositary shares may be redeemed at our option in whole, but not in part, prior to the redemption date upon the occurrence of a regulatory capital treatment event, as defined in the certificate of designation, at a redemption price equal to the liquidation price per share and liquidation price per depositary share plus any declared and unpaid dividends, without accumulation of any undeclared dividends. (2) On the redemption date, or any dividend payment date thereafter, the preferred stock and corresponding depositary shares may be redeemed by us, in whole or in part, at the liquidation price per share and liquidation price per depositary share plus any declared and unpaid dividends, without accumulation of any undeclared dividends. (3)
Dividends Declared	The following table presents the dividends declared for each of the series of preferred stock issued and outstanding for the periods indicated: Years Ended December 31, 2024 2023 (Dollars in millions, except per share amounts) Dividends Declared per Share Dividends Declared per Depositary Share Total Dividends Declared per Share Dividends Declared per Depositary Share Total Preferred Stock: Series D $ 1,475 $ 0.37 $ 11 $ 5,900 $ 1.48 $ 44 Series F 2,336 23.36 6 8,935 89.35 23 Series G 5,350 1.34 27 5,350 1.34 27 Series H 6,251 62.51 31 5,625 56.25 28 Series I 5,863 58.63 88 — — — Series J 2,643 26.43 22 — — — Total $ 185 $ 122 The table below presents the dividends declared on common stock for the periods indicated: Years Ended December 31, 2024 2023 Dividends Declared per Share Total (In millions) Dividends Declared per Share Total (In millions) Common Stock $ 2.90 $ 859 $ 2.64 $ 837
Stock Repurchase Program	The tables below present the activity under our common share repurchase program for the period indicated: Years Ended December 31, 2024 2023 Shares Acquired (In millions) Average Cost per Share Total Acquired (In millions) Shares Acquired (In millions) Average Cost per Share Total Acquired (In millions) 2024 Program 15.1 $ 85.89 $ 1,300 — $ — $ — 2023 Program — — — 49.2 77.22 3,800
Schedule of Accumulated Other Comprehensive Income (Loss)	The following table presents the after-tax components of AOCI and changes for the periods indicated, net of related taxes: (In millions) Net Unrealized Gains (Losses) on Cash Flow Hedges Net Unrealized Gains (Losses) on Investment Securities (1) Net Unrealized Losses on Retirement Plans Foreign Currency Translation Net Unrealized Gains (Losses) on Hedges of Net Investments in Non-U.S. Subsidiaries Total Balance as of December 31, 2021 $ (2) $ (50) $ (130) $ (1,019) $ 68 $ (1,133) Other comprehensive income (loss) before reclassifications (321) (1,937) (1) (732) 291 (2,700) Increase (decrease) due to amounts reclassified from accumulated other comprehensive income (36) 170 (12) — — 122 Other comprehensive income (loss) (357) (1,767) (13) (732) 291 (2,578) Balance as of December 31, 2022 $ (359) $ (1,817) $ (143) $ (1,751) $ 359 $ (3,711) Other comprehensive income (loss) before reclassifications 75 442 (3) 351 (90) 775 Increase (decrease) due to amounts reclassified from accumulated other comprehensive income 153 428 1 — — 582 Other comprehensive income (loss) 228 870 (2) 351 (90) 1,357 Balance as of December 31, 2023 $ (131) $ (947) $ (145) $ (1,400) $ 269 $ (2,354) Other comprehensive income (loss) before reclassifications 39 15 14 (768) 540 (160) Increase (decrease) due to amounts reclassified from accumulated other comprehensive income (40) 452 2 — — 414 Other comprehensive income (loss) (1) 467 16 (768) 540 254 Balance as of December 31, 2024 $ (132) $ (480) $ (129) $ (2,168) $ 809 $ (2,100) (1) Includes after-tax net unamortized unrealized gains (losses) of ($374) million, ($530) million and ($749) million as of December 31, 2024, 2023 and 2022, respectively, related to AFS investment securities previously transferred to HTM.
Schedule of Reclassifications Out of AOCI	The following table presents after-tax reclassifications into earnings for the periods indicated: Years Ended December 31, 2024 2023 2022 (In millions) Amounts Reclassified into Earnings Affected Line Item in Consolidated Statement of Income Investment securities: Net realized (gains) losses from sales of available-for-sale securities, net of related taxes of $21, $81 and $1 respectively $ 59 $ 213 $ 1 Net gains (losses) from sales of available-for-sale securities Losses reclassified from accumulated other comprehensive income into income, net of related taxes of $137, $81 and $96 respectively 393 215 169 Net interest income Cash flow hedges: (Gains) losses reclassified from accumulated other comprehensive income into income, net of related taxes of ($14), $55 and ($13) respectively (40) 153 (36) Net interest income Retirement plans: Amortization of actuarial losses, net of related taxes of nil, nil and $(1) respectively 2 1 (12) Compensation and employee benefits expenses Total amounts reclassified from accumulated other comprehensive income $ 414 $ 582 $ 122

Regulatory Capital (Tables)

Regulatory Capital (Tables)	12 Months Ended
	Dec. 31, 2024
Banking and Thrift, Other Disclosure [Abstract]
Schedule of Regulatory Capital	The following table presents the regulatory capital structure, total RWA, related regulatory capital ratios and the minimum required regulatory capital ratios for us and State Street Bank as of the dates indicated. State Street Corporation State Street Bank (Dollars in millions) Basel III Advanced Approaches December 31, 2024 Basel III Standardized Approach December 31, 2024 Basel III Advanced Approaches December 31, 2023 Basel III Standardized Approach December 31, 2023 Basel III Advanced Approaches December 31, 2024 Basel III Standardized Approach December 31, 2024 Basel III Advanced Approaches December 31, 2023 Basel III Standardized Approach December 31, 2023 Common shareholders’ equity: Common stock and related surplus $ 11,226 $ 11,226 $ 11,245 $ 11,245 $ 13,333 $ 13,333 $ 13,033 $ 13,033 Retained earnings 29,582 29,582 27,957 27,957 15,977 15,977 14,454 14,454 Accumulated other comprehensive income (loss) (2,100) (2,100) (2,354) (2,354) (1,805) (1,805) (2,097) (2,097) Treasury stock, at cost (16,198) (16,198) (15,025) (15,025) — — — — Total 22,510 22,510 21,823 21,823 27,505 27,505 25,390 25,390 Regulatory capital adjustments: Goodwill and other intangible assets, net of associated deferred tax liabilities (8,320) (8,320) (8,470) (8,470) (8,054) (8,054) (8,208) (8,208) Other adjustments (1) (391) (391) (382) (382) (278) (278) (298) (298) Common equity tier 1 capital 13,799 13,799 12,971 12,971 19,173 19,173 16,884 16,884 Preferred stock 2,816 2,816 1,976 1,976 — — — — Tier 1 capital 16,615 16,615 14,947 14,947 19,173 19,173 16,884 16,884 Qualifying subordinated long-term debt 1,861 1,861 1,870 1,870 530 530 536 536 Adjusted allowance for credit losses — 183 — 150 — 183 — 150 Total capital $ 18,476 $ 18,659 $ 16,817 $ 16,967 $ 19,703 $ 19,886 $ 17,420 $ 17,570 Risk-weighted assets: Credit risk (2) $ 63,252 $ 124,281 $ 61,210 $ 109,228 $ 57,883 $ 121,785 $ 54,942 $ 107,067 Operational risk (3) 49,350 NA 43,768 NA 47,538 NA 42,297 NA Market risk 2,000 2,000 2,475 2,475 2,000 2,000 2,475 2,475 Total risk-weighted assets $ 114,602 $ 126,281 $ 107,453 $ 111,703 $ 107,421 $ 123,785 $ 99,714 $ 109,542 Adjusted quarterly average assets $ 318,470 $ 318,470 $ 269,807 $ 269,807 $ 314,754 $ 314,754 $ 266,818 $ 266,818 Capital Ratios: 2024 Minimum Requirements (4) 2023 Minimum Requirements (4) Common equity tier 1 capital 8.0 % 8.0 % 12.0 % 10.9 % 12.1 % 11.6 % 17.8 % 15.5 % 16.9 % 15.4 % Tier 1 capital 9.5 9.5 14.5 13.2 13.9 13.4 17.8 15.5 16.9 15.4 Total capital 11.5 11.5 16.1 14.8 15.7 15.2 18.3 16.1 17.5 16.0 Tier 1 leverage (5) 4.0 4.0 5.2 5.2 5.5 5.5 6.1 6.1 6.3 6.3 (1) Other adjustments within CET1 capital primarily include disallowed deferred tax assets, cash flow hedges that are not recognized at fair value on the balance sheet, and the overfunded portion of our defined benefit pension plan obligation net of associated deferred tax liabilities. (2) Under the advanced approaches, credit risk RWA includes a CVA which reflects the risk of potential fair value adjustments for credit risk reflected in our valuation of OTC derivative contracts. We used a simple CVA approach in conformity with the Basel III advanced approaches. (3) Under the current advanced approaches rules and regulatory guidance concerning operational risk models, RWA attributable to operational risk can vary substantially from period-to-period, without direct correlation to the effects of a particular loss event on our results of operations and financial condition and impacting dates and periods that may differ from the dates and periods as of and during which the loss event is reflected in our financial statements, with the timing and categorization dependent on the processes for model updates and, if applicable, model revalidation and regulatory review and related supervisory processes. An individual loss event can have a significant effect on the output of our operational RWA under the advanced approaches depending on the severity of the loss event and its categorization among the seven Basel-defined UOMs. (4) Minimum requirements include a CCB of 2.5% and a SCB of 2.5% for the advanced approaches and the standardized approach, respectively, a G-SIB surcharge of 1.0% and a countercyclical buffer of 0%. On June 26, 2024, we were notified by the Federal Reserve of the results from the 2024 supervisory stress test. Our SCB calculated under the 2024 supervisory stress test was well below the 2.5% minimum, resulting in an SCB at that floor, which remains in effect for the period from October 1, 2024 through September 30, 2025. (5) State Street Bank is required to maintain a minimum Tier 1 leverage ratio of 5% as it is the insured depository institution subsidiary of State Street Corporation, a U.S. G-SIB. NA Not applicable

Net Interest Income (Tables)

Net Interest Income (Tables)	12 Months Ended
	Dec. 31, 2024
Banking and Thrift, Interest [Abstract]
Components of Interest Revenue and Interest Expense	The following table presents the components of interest income and interest expense, and related NII, for the periods indicated: Years Ended December 31, (In millions) 2024 2023 2022 Interest income: Interest-bearing deposits with banks $ 3,634 $ 2,869 $ 842 Investment securities: Investment securities available-for-sale 2,680 1,744 724 Investment securities held-to-maturity 1,090 1,262 979 Total investment securities 3,770 3,006 1,703 Securities purchased under resale agreements 686 312 188 Loans 2,271 1,862 972 Other interest-earning assets 1,616 1,131 383 Total interest income 11,977 9,180 4,088 Interest expense: Interest-bearing deposits 6,627 4,991 967 Securities sold under repurchase agreements 156 34 14 Federal funds purchased — 3 — Short-term borrowings 577 40 26 Long-term debt 1,086 888 376 Other interest-bearing liabilities 608 465 161 Total interest expense 9,054 6,421 1,544 Net interest income $ 2,923 $ 2,759 $ 2,544

Equity-Based Compensation (Tabl

Equity-Based Compensation (Tables)	12 Months Ended
	Dec. 31, 2024
Share-Based Payment Arrangement [Abstract]
Schedule of Deferred Stock Awards	Shares Weighted-Average Deferred Stock Awards: Outstanding as of December 31, 2022 5,279 $ 72.43 Granted 2,421 79.58 Vested (2,587) 71.54 Forfeited (145) 76.40 Outstanding as of December 31, 2023 4,968 75.72 Granted 2,551 68.70 Vested (2,513) 73.62 Forfeited (147) 73.35 Outstanding as of December 31, 2024 4,859 73.20
Schedule of Performance Awards	Shares Weighted-Average Performance Awards: Outstanding as of December 31, 2022 2,296 $ 69.43 Granted 614 79.96 Forfeited (17) 74.59 Paid out (687) 62.99 Outstanding as of December 31, 2023 2,206 74.33 Granted 363 63.49 Forfeited (28) 80.01 Paid out (502) 65.70 Outstanding as of December 31, 2024 2,039 74.44
Schedule of Cash Settled Stock Awards	Shares Weighted-Average Cash-Settled Restricted Stock Awards: Outstanding as of December 31, 2022 35 $ 79.99 Granted 24 83.80 Paid out (32) 79.99 Outstanding as of December 31, 2023 27 83.37 Granted 40 69.96 Paid out (38) 76.11 Outstanding as of December 31, 2024 29 74.52

Occupancy Expense and Informa_2

Occupancy Expense and Information Systems and Communications Expense (Tables)	12 Months Ended
	Dec. 31, 2024
Leases [Abstract]
Summary of Lease Costs and Other Information	The following table presents lease costs, sublease rental income, cash flows and new leases arising from lease transactions for 2024: Years Ended December 31, (In millions) 2024 2023 Finance lease: Amortization of right-of-use assets $ 48 $ 48 Interest on lease liabilities 3 5 Total finance lease expense 51 53 Sublease income — — Net finance lease expense 51 53 Operating lease: Operating lease expense 168 163 Sublease income (17) (23) Net operating lease expense 151 140 Net lease expense $ 202 $ 193 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from finance leases $ 3 $ 5 Operating cash flows from operating leases 179 197 Financing cash flows from finance leases 46 45 Right-of-use assets obtained in exchange for new lease obligations: Operating leases $ 174 $ 461 Finance leases — — The following table presents details related to remaining lease terms and discount rate as of December 31, 2024 and 2023: December 31, 2024 December 31, 2023 Weighted-average remaining lease term (in years): Finance leases 1.4 2.5 Operating leases 8.1 8.5 Weighted-average discount rate: Finance leases 3 % 3 % Operating leases 4 % 4 %
Schedule of Future Minimum Lease Payments, Operating Leases	The following table presents future minimum lease payments under non-cancellable leases as of December 31, 2024: (In millions) Operating Leases Finance Leases Total 2025 $ 182 $ 55 $ 237 2026 152 26 178 2027 134 — 134 2028 118 — 118 2029 88 — 88 Thereafter 342 — 342 Total future minimum lease payments 1,016 81 1,097 Less imputed interest (177) (2) (179) Total $ 839 $ 79 $ 918
Schedule of Future Minimum Lease Payments, Finance Leases	The following table presents future minimum lease payments under non-cancellable leases as of December 31, 2024: (In millions) Operating Leases Finance Leases Total 2025 $ 182 $ 55 $ 237 2026 152 26 178 2027 134 — 134 2028 118 — 118 2029 88 — 88 Thereafter 342 — 342 Total future minimum lease payments 1,016 81 1,097 Less imputed interest (177) (2) (179) Total $ 839 $ 79 $ 918

Expenses (Tables)

Expenses (Tables)	12 Months Ended
	Dec. 31, 2024
Other Expenses [Abstract]
Schedule of Expenses	The following table presents the components of other expenses for the periods indicated: Years Ended December 31, (In millions) 2024 2023 2022 Professional services $ 465 $ 428 $ 375 Regulatory fees and assessments (1) 142 464 83 Sales advertising and public relations 142 142 99 Securities processing 78 49 63 Bank operations 51 45 41 Donations 28 27 27 Other 433 374 387 Total other expenses $ 1,339 $ 1,529 $ 1,075 (1) Includes an FDIC special assessment of $99 million and $387 million in 2024 and 2023, respectively, related to FDIC’s recovery of estimated losses to the Deposit Insurance Fund associated with the closures of Silicon Valley Bank and Signature Bank reflected in other expenses .
Restructuring and Related Costs	The following table presents aggregate activity for repositioning charges for the periods indicated: (In millions) Employee Real Estate Total Accrual Balance at December 31, 2021 $ 68 $ 6 $ 74 Accruals for Repositioning Charges 58 20 78 Payments and Other Adjustments (43) (21) (64) Accrual Balance at December 31, 2022 83 5 88 Accruals for Repositioning Charges 182 21 203 Payments and Other Adjustments (58) (25) (83) Accrual Balance at December 31, 2023 207 1 208 Accruals for Repositioning Charges (15) 13 (2) Payments and Other Adjustments (96) (14) (110) Accrual Balance at December 31, 2024 $ 96 $ — $ 96

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2024
Income Tax Disclosure [Abstract]
Schedule of Components of Income Tax Expense (Benefit)	The following table presents the components of income tax expense (benefit) for the periods indicated: Years Ended December 31, (In millions) 2024 2023 2022 Current: Federal $ 108 $ 160 $ 161 State 68 79 112 Non-U.S. 387 317 342 Total current expense 563 556 615 Deferred: Federal 77 (77) (16) State 2 (63) (2) Non-U.S. 66 (44) (44) Total deferred expense (benefit) 145 (184) (62) Total income tax expense (benefit) $ 708 $ 372 $ 553
Schedule of Effective Income Tax Rate Reconciliation	The following table presents a reconciliation of the U.S. statutory income tax rate to our effective tax rate based on income before income tax expense for the periods indicated: Years Ended December 31, 2024 2023 2022 U.S. federal income tax rate 21.0 % 21.0 % 21.0 % Changes from statutory rate: State taxes, net of federal benefit 1.8 2.4 3.1 Tax-exempt income (1.0) (1.5) (1.0) Business tax credits (1) (2.0) (3.6) (4.0) Foreign tax differential 1.0 (0.6) — Foreign tax credit (benefits)/ limitations (2) 0.6 (2.0) (0.1) Change in Valuation Allowance (0.5) (0.2) (2.0) Other, net (0.1) 0.6 (0.4) Effective tax rate 20.8 % 16.1 % 16.6 % (1) Business tax credits include research, low-income housing, production and investment tax credits. (2)
Schedule of Deferred Tax Assets and Liabilities	The following table presents significant components of our gross deferred tax assets and gross deferred tax liabilities as of the dates indicated: December 31, (In millions) 2024 2023 Deferred tax assets: Other amortizable assets $ 189 $ 265 Tax credit carryforwards 577 673 Lease obligations 214 236 Deferred compensation 111 104 Restructuring charges and other reserves 227 224 NOL and other carryforwards 147 167 Pension plan 21 24 Foreign currency translation 63 51 Unrealized losses on investment securities, net 184 352 Total deferred tax assets 1,733 2,096 Valuation allowance for deferred tax assets (172) (200) Deferred tax assets, net of valuation allowance $ 1,561 $ 1,896 Deferred tax liabilities: Fixed and intangible assets $ 634 $ 574 Investment basis differences 47 40 Right-of-use Assets 198 214 Other 40 68 Total deferred tax liabilities $ 919 $ 896
Summary of Valuation Allowance	The table below summarizes the deferred tax assets, carryforwards and related valuation allowances recognized as of December 31, 2024: (In millions) Deferred Tax Asset Valuation Allowance Expiration Other amortizable assets $ 189 $ (72) None Tax credits 577 (8) 2042-2044 NOLs - Non-U.S. 130 (80) 2026-2042, None NOLs - U.S. 14 (10) 2025-2043, None Other carryforwards 2 (2) None
Schedule of Unrecognized Tax Benefits	The following table presents activity related to unrecognized tax benefits as of the dates indicated: December 31, (In millions) 2024 2023 2022 Beginning balance $ 237 $ 285 $ 252 Decrease related to agreements with tax authorities (22) (32) (4) Increase related to tax positions taken during current year 36 39 48 Increase/(Decrease) related to tax positions taken during prior years 11 (34) 8 Decreases related to a lapse of the applicable statute of limitations (25) (21) (19) Ending balance $ 237 $ 237 $ 285

Earnings Per Common Share (Tabl

Earnings Per Common Share (Tables)	12 Months Ended
	Dec. 31, 2024
Earnings Per Share [Abstract]
Computation of Basic and Diluted Earnings Per Share	The following table presents the computation of basic and diluted earnings per common share for the periods indicated: Years Ended December 31, (Dollars in millions, except per share amounts) 2024 2023 2022 Net income $ 2,687 $ 1,944 $ 2,774 Less: Preferred stock dividends (202) (122) (112) Dividends and undistributed earnings allocated to participating securities (1) (2) (1) (2) Net income available to common shareholders $ 2,483 $ 1,821 $ 2,660 Average common shares outstanding (In thousands): Basic average common shares 297,883 322,337 365,214 Effect of dilutive securities: equity-based awards 4,343 4,231 4,895 Diluted average common shares 302,226 326,568 370,109 Anti-dilutive securities (2) 14 1,251 866 Earnings per common share: Basic $ 8.33 $ 5.65 $ 7.28 Diluted (3) 8.21 5.58 7.19 (1) Represents the portion of net income available to common equity allocated to participating securities, composed of unvested and fully vested SERP (Supplemental executive retirement plans) shares and fully vested deferred director stock awards, which are equity-based awards that contain non-forfeitable rights to dividends, and are considered to participate with the common stock in undistributed earnings. (2) Represents equity-based awards outstanding, but not included in the computation of diluted average common shares, because their effect was anti-dilutive. Additional information about equity-based awards is provided in Note 18. (3) Calculations reflect allocation of earnings to participating securities using the two-class method, as this computation is more dilutive than the treasury stock method.

Line of Business Information (T

Line of Business Information (Tables)	12 Months Ended
	Dec. 31, 2024
Segment Reporting [Abstract]
Summary of Line of Business Results	The following is a summary of our line of business results for the periods indicated. Years Ended December 31, Investment Investment Other Total (Dollars in millions) 2024 2023 2022 2024 2023 2022 2024 2023 2022 2024 2023 2022 Revenue: Servicing fees $ 5,016 $ 4,922 $ 5,087 $ — $ — $ — $ — $ — $ — $ 5,016 $ 4,922 $ 5,087 Management fees — — — 2,124 1,876 1,939 — — — 2,124 1,876 1,939 Foreign exchange trading services 1,248 1,140 1,271 138 125 82 15 — 23 1,401 1,265 1,376 Securities finance 415 402 397 23 24 19 — — — 438 426 416 Software and processing fees 888 811 789 — — — — — — 888 811 789 Other fee revenue (1) 188 145 46 35 35 (47) 66 — — 289 180 (1) Total fee revenue 7,755 7,420 7,590 2,320 2,060 1,993 81 — 23 10,156 9,480 9,606 Net interest income 2,899 2,740 2,551 24 19 (7) — — — 2,923 2,759 2,544 Total other income 2 — (2) — — — (81) (294) — (79) (294) (2) Total revenue 10,656 10,160 10,139 2,344 2,079 1,986 — (294) 23 13,000 11,945 12,148 Provision for credit losses 75 46 20 — — — — — — 75 46 20 Expenses: Compensation and employee benefits 4,078 4,033 3,896 555 520 478 64 191 54 4,697 4,744 4,428 Information systems and communications 1,743 1,568 1,535 86 94 95 — 41 — 1,829 1,703 1,630 Transaction processing services 825 777 809 173 180 162 — — — 998 957 971 Other 1,041 1,035 1,020 841 746 661 124 398 91 2,006 2,179 1,772 Total expenses 7,687 7,413 7,260 1,655 1,540 1,396 188 630 145 9,530 9,583 8,801 Income before income tax expense $ 2,894 $ 2,701 $ 2,859 $ 689 $ 539 $ 590 $ (188) $ (924) $ (122) $ 3,395 $ 2,316 $ 3,327 Pre-tax margin 27 % 27 % 28 % 29 % 26 % 30 % 26 % 19 % 27 % Average assets (in billions) $ 308.5 $ 271.5 $ 283.2 $ 3.2 $ 3.2 $ 3.2 $ 311.7 $ 274.7 $ 286.4 (1) Investment Management includes other revenue items that are primarily driven by equity market movements.
Components of Other in Segment Reporting	The following provides additional information about the items included in the line of business results “Other” column for the periods indicated. Years Ended December 31, Other (Dollars in millions) 2024 2023 2022 Fee revenue (1) $ 81 $ — $ 23 Other Income (2) (81) (294) — Deferred incentive compensation expense acceleration (3) (79) — — Net repositioning charges (4) 2 (203) (70) Net acquisition and restructuring costs (5) — 15 (65) FDIC special assessment and other (6) (111) (442) (10) Total $ (188) $ (924) $ (122) (1) Includes a $66 million gain on sale of equity investment and a $15 million revenue-related recovery associated with the proceeds from a 2018 foreign exchange benchmark litigation resolution, which is reflected in foreign exchange trading services revenue. (2) Includes the loss on the sale of investment securities of $81 million and $294 million in 2024 and 2023, respectively, related to the repositioning of the investment portfolio. (3) Deferred compensation expense acceleration of $79 million in 2024 reflected in compensation and employee benefits, associated with an amendment of certain outstanding deferred cash incentive compensation awards to align our deferred pay mix with peers. (4) Net repositioning charges in 2024 includes a $15 million release reflected in compensation and employee benefits, partially offset by $13 million of occupancy charges related to footprint optimization. Net repositioning charges in 2023 includes $182 million reflected in compensation and employee benefits expenses related to workforce rationalization and $21 million of occupancy costs related to real estate footprint optimization. (5) Acquisition and restructuring costs related to the Brown Brother Harriman Investor Services acquisition transaction that State Street is no longer pursuing. (6) Includes an FDIC special assessment of $99 million and $387 million in 2024 and 2023, respectively, related to FDIC’s recovery of estimated losses to the Deposit Insurance Fund associated with the closures of Silicon Valley Bank and Signature Bank reflected in other expenses. Other includes a $12 million charge in 2024 reflected in other expenses and $41 million in 2023 reflected in information systems and communications, primarily related to operating model changes.

Revenue from Contracts with C_2

Revenue from Contracts with Customers (Tables)	12 Months Ended
	Dec. 31, 2024
Revenue from Contract with Customer [Abstract]
Disaggregation of Revenue	In the following table, revenue is disaggregated by our two lines of business and by revenue stream for which the nature, amount, timing and uncertainty of revenue and cash flows are affected by economic factors. The amounts in the “Other” columns were not allocated to our business lines. Year Ended December 31, 2024 Investment Servicing Investment Management Other Total (Dollars in millions) Topic 606 revenue All other revenue Total Topic 606 revenue All other revenue Total Topic 606 revenue All other revenue Total 2024 Servicing fees $ 5,016 $ — $ 5,016 $ — $ — $ — $ — $ — $ — $ 5,016 Management fees — — — 2,124 — 2,124 — — — 2,124 Foreign exchange trading services 386 862 1,248 138 — 138 — 15 15 1,401 Securities finance 185 230 415 — 23 23 — — — 438 Software and processing fees 685 203 888 — — — — — — 888 Other fee revenue — 188 188 — 35 35 — 66 66 289 Total fee revenue 6,272 1,483 7,755 2,262 58 2,320 — 81 81 10,156 Net interest income — 2,899 2,899 — 24 24 — — — 2,923 Total other income — 2 2 — — — — (81) (81) (79) Total revenue $ 6,272 $ 4,384 $ 10,656 $ 2,262 $ 82 $ 2,344 $ — $ — $ — $ 13,000 Year Ended December 31, 2023 Investment Servicing Investment Management Other Total (Dollars in millions) Topic 606 revenue All other revenue Total Topic 606 revenue All other revenue Total Topic 606 revenue All other revenue Total 2023 Servicing fees $ 4,922 $ — $ 4,922 $ — $ — $ — $ — $ — $ — $ 4,922 Management fees — — — 1,876 — 1,876 — — — 1,876 Foreign exchange trading services 344 796 1,140 125 — 125 — — — 1,265 Securities finance 225 177 402 — 24 24 — — — 426 Software and processing fees 627 184 811 — — — — — — 811 Other fee revenue — 145 145 — 35 35 — — — 180 Total fee revenue 6,118 1,302 7,420 2,001 59 2,060 — — — 9,480 Net interest income — 2,740 2,740 — 19 19 — — — 2,759 Total other income — — — — — — — (294) (294) (294) Total revenue $ 6,118 $ 4,042 $ 10,160 $ 2,001 $ 78 $ 2,079 $ — $ (294) $ (294) $ 11,945 Year Ended December 31, 2022 Investment Servicing Investment Management Other Total (Dollars in millions) Topic 606 revenue All other revenue Total Topic 606 revenue All other revenue Total Topic 606 revenue All other revenue Total 2022 Servicing fees $ 5,087 $ — $ 5,087 $ — $ — $ — $ — $ — $ — $ 5,087 Management fees — — — 1,939 — 1,939 — — — 1,939 Foreign exchange trading services 363 908 1,271 82 — 82 — 23 23 1,376 Securities finance 233 164 397 — 19 19 — — — 416 Software and processing fees 599 190 789 — — — — — — 789 Other fee revenue — 46 46 — (47) (47) — — — (1) Total fee revenue 6,282 1,308 7,590 2,021 (28) 1,993 — 23 23 9,606 Net interest income — 2,551 2,551 — (7) (7) — — — 2,544 Total other income — (2) (2) — — — — — — (2) Total revenue $ 6,282 $ 3,857 $ 10,139 $ 2,021 $ (35) $ 1,986 $ — $ 23 $ 23 $ 12,148

Non-U.S. Activities (Tables)

Non-U.S. Activities (Tables)	12 Months Ended
	Dec. 31, 2024
Segments, Geographical Areas [Abstract]
Schedule of Results from Non-U.S. Operations	The following table presents our U.S. and non-U.S. financial results for the periods indicated: Years Ended December 31, 2024 2023 2022 (In millions) Non-U.S. (1) U.S. Total Non-U.S. (1) U.S. Total Non-U.S. (1) U.S. Total Total revenue $ 5,485 $ 7,515 $ 13,000 $ 5,108 $ 6,837 $ 11,945 $ 5,170 $ 6,978 $ 12,148 Income before income tax expense 1,376 2,019 3,395 1,057 1,259 2,316 1,358 1,969 3,327 (1) Geographic mix is generally based on the domicile of the entity servicing the funds and is not necessarily representative of the underlying asset mix.

Parent Company Financial Stat_2

Parent Company Financial Statements (Tables)	12 Months Ended
	Dec. 31, 2024
Condensed Financial Information Disclosure [Abstract]
Statement of Income - Parent Company	Statement of Income - Parent Company Years Ended December 31, (In millions) 2024 2023 2022 Cash dividends from consolidated banking subsidiary $ 1,250 $ 4,550 $ 1,500 Cash dividends from consolidated non-banking subsidiaries and unconsolidated entities 58 320 198 Other, net 516 274 69 Total revenue 1,824 5,144 1,767 Interest expense 1,170 975 426 Other expenses 239 198 93 Total expenses 1,409 1,173 519 Income tax (benefit) (232) (224) (121) Income (loss) before equity in undistributed income of consolidated subsidiaries and unconsolidated entities 647 4,195 1,369 Equity in undistributed income (loss) of consolidated subsidiaries and unconsolidated entities: Consolidated banking subsidiary 1,522 (2,464) 1,275 Consolidated non-banking subsidiaries and unconsolidated entities 518 213 130 Net income $ 2,687 $ 1,944 $ 2,774
Statement of Condition - Parent Company	Statement of Condition - Parent Company As of December 31, (In millions) 2024 2023 Assets: Interest-bearing deposits with consolidated banking subsidiary $ 438 $ 659 Trading account assets 499 454 Investment securities available-for-sale 378 279 Investments in: Consolidated banking subsidiary 27,504 25,391 Consolidated non-banking subsidiaries 10,487 10,055 Unconsolidated entities 114 111 Notes and other receivables from: Consolidated banking subsidiary 170 2 Consolidated non-banking subsidiaries and unconsolidated entities 9,211 6,816 Other assets 127 230 Total assets $ 48,928 $ 43,997 Liabilities: Notes and other payables to: Consolidated banking subsidiary $ — $ 68 Consolidated non-banking subsidiaries and unconsolidated entities 2,063 896 Accrued expenses and other liabilities 652 615 Long-term debt 20,887 18,619 Total liabilities 23,602 20,198 Shareholders’ equity 25,326 23,799 Total liabilities and shareholders’ equity $ 48,928 $ 43,997
Statement of Cash Flows - Parent Company	Statement of Cash Flows - Parent Company Years Ended December 31, (In millions) 2024 2023 2022 Net cash provided by (used in) operating activities $ 622 $ 4,194 $ 1,608 Investing Activities: Net increase (decrease) in interest-bearing deposits with consolidated banking subsidiary 221 (199) 22 Proceeds from sales and maturities of available-for-sale securities 1,120 830 780 Purchases of available-for-sale securities (1,204) (836) (886) Investments in consolidated banking and non-banking subsidiaries (9,330) (10,784) (16,252) Sale or repayment of investment in consolidated banking and non-banking subsidiaries 7,875 7,920 15,092 Net cash used in investing activities (1,318) (3,069) (1,244) Financing Activities: Proceeds from issuance of long-term debt, net of issuance costs 4,281 6,221 3,731 Payments for long-term debt (2,000) (2,500) (1,500) Proceeds from issuance of preferred stock, net of issuance costs 2,350 — — Payments for redemption of preferred stock (1,500) — — Repurchases of common stock (1,319) (3,781) (1,500) Repurchases of common stock for employee tax withholding (83) (95) (123) Payments for cash dividends (1,033) (970) (972) Net cash provided by (used in) financing activities 696 (1,125) (364) Net change — — — Cash and due from banks at beginning of year — — — Cash and due from banks at end of year $ — $ — $ —

Summary of Significant Accoun_4

Summary of Significant Accounting Policies - Basis of Presentation (Details) $ in Millions	12 Months Ended
	Dec. 31, 2024 USD ($) line_of_business	Dec. 31, 2024 USD ($) reporting_segment	Dec. 31, 2024 USD ($) reportable_segment
Accounting Policies [Abstract]
Number of reportable segments	2	2	2
Accrual of loss contingency	$ 15	$ 15	$ 15

Summary of Significant Accoun_5

Summary of Significant Accounting Policies - Cash and Cash Equivalents (Details) - USD ($) $ in Billions	Dec. 31, 2024	Dec. 31, 2023
Cash and Cash Equivalents [Line Items]
Cash and due from banks, amount inaccessible	$ 1.3	$ 1.9
RUSSIA
Cash and Cash Equivalents [Line Items]
Cash and due from banks, amount inaccessible	$ 0.8	$ 1.5

Fair Value - Schedule of Fair V

Fair Value - Schedule of Fair Value Measurements on a Recurring Basis (Details) - USD ($)	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading account assets	$ 768,000,000	$ 773,000,000
Available-for-sale investment securities:	58,895,000,000	44,526,000,000
Derivative assets	11,183,000,000	5,307,000,000
Derivative asset, collateral, cash offset	1,860,000,000	3,904,000,000
Derivative liability, collateral, cash offset	6,103,000,000	1,413,000,000
Available for sale, amortized cost	59,006,000,000	44,853,000,000
Debt securities, AFS, allowance	0	0	$ 2,000,000
Investment securities held-to-maturity (less allowance for credit losses of $0 and $1) (fair value of $41,906 and $51,503)	47,727,000,000	57,117,000,000
Debt securities, HTM, allowance	0	1,000,000	$ 0
Agency CMBS
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, amortized cost	4,360,000,000	5,540,000,000
Investment securities held-to-maturity (less allowance for credit losses of $0 and $1) (fair value of $41,906 and $51,503)	5,180,000,000	5,230,000,000
Agency MBS
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, amortized cost	6,200,000,000	5,210,000,000
Non-US collateralized loan obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, amortized cost	700,000,000	1,020,000,000
Non-U.S. debt securities, corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale, amortized cost	2,540,000,000	2,360,000,000
Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading account assets	768,000,000	773,000,000
Available-for-sale investment securities:	58,895,000,000	44,526,000,000
Derivative asset, Impact of Netting	(18,285,000,000)	(14,400,000,000)
Derivative assets	11,183,000,000	5,307,000,000
Other	767,000,000	651,000,000
Other assets - impact of netting	0	0
Total assets carried at fair value	71,613,000,000	51,257,000,000
Derivative liability, Impact of Netting	(22,528,000,000)	(11,909,000,000)
Derivative liabilities	6,596,000,000	7,693,000,000
Total liabilities carried at fair value	6,596,000,000	7,693,000,000
Recurring | Foreign exchange contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, Impact of Netting	(18,262,000,000)	(14,387,000,000)
Derivative assets	11,177,000,000	5,307,000,000
Derivative liability, Impact of Netting	(22,527,000,000)	(11,909,000,000)
Derivative liabilities	6,377,000,000	7,507,000,000
Recurring | Interest rate contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, Impact of Netting	(23,000,000)	(13,000,000)
Derivative assets	5,000,000	0
Derivative liability, Impact of Netting	(1,000,000)	0
Derivative liabilities	0	4,000,000
Recurring | Other derivative contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability, Impact of Netting	0	0
Derivative liabilities	219,000,000	182,000,000
Recurring | Other derivative contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, Impact of Netting	0
Derivative assets	1,000,000
Recurring | U.S. government securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading account assets	34,000,000	36,000,000
Recurring | Non-U.S. government securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading account assets	121,000,000	138,000,000
Recurring | Other
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading account assets	613,000,000	599,000,000
Available-for-sale investment securities:	52,000,000	306,000,000
Recurring | US Treasury and federal agencies, direct obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities:	23,525,000,000	8,301,000,000
Recurring | US Treasury and federal agencies, mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities:	10,566,000,000	10,755,000,000
Recurring | Total U.S. Treasury and federal agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities:	34,091,000,000	19,056,000,000
Recurring | Non-U.S. debt securities, mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities:	2,430,000,000	1,857,000,000
Recurring | Non-U.S. debt securities, asset-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities:	1,868,000,000	2,137,000,000
Recurring | Non-U.S. sovereign, supranational and non-U.S. agency
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities:	13,939,000,000	15,100,000,000
Recurring | Non-U.S. debt securities, other
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities:	2,821,000,000	2,735,000,000
Recurring | Total non-U.S. debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities:	21,058,000,000	21,829,000,000
Recurring | Asset-backed securities, student loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities:	90,000,000	114,000,000
Recurring | Asset-backed securities, collateralized loan obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities:	3,453,000,000	2,527,000,000
Recurring | Asset-backed securities, non-agency CMBS and RMBS
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities:	4,000,000	249,000,000
Recurring | Asset-backed securities, other
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities:	91,000,000	90,000,000
Recurring | Total asset-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities:	3,638,000,000	2,980,000,000
Recurring | State and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities:	56,000,000	355,000,000
Recurring | Quoted Market Prices in Active Markets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading account assets	34,000,000	36,000,000
Available-for-sale investment securities:	23,525,000,000	8,301,000,000
Derivative asset	22,000,000	0
Other	20,000,000	11,000,000
Total assets carried at fair value	23,601,000,000	8,348,000,000
Derivative liability	0	5,000,000
Total liabilities carried at fair value	0	5,000,000
Recurring | Quoted Market Prices in Active Markets (Level 1) | Foreign exchange contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset	16,000,000	0
Derivative liability	0	1,000,000
Recurring | Quoted Market Prices in Active Markets (Level 1) | Interest rate contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset	5,000,000	0
Derivative liability	0	4,000,000
Recurring | Quoted Market Prices in Active Markets (Level 1) | Other derivative contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability	0	0
Recurring | Quoted Market Prices in Active Markets (Level 1) | Other derivative contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset	1,000,000
Recurring | Quoted Market Prices in Active Markets (Level 1) | U.S. government securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading account assets	34,000,000	36,000,000
Recurring | Quoted Market Prices in Active Markets (Level 1) | Non-U.S. government securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading account assets	0	0
Recurring | Quoted Market Prices in Active Markets (Level 1) | Other
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading account assets	0	0
Available-for-sale investment securities:	0	0
Recurring | Quoted Market Prices in Active Markets (Level 1) | US Treasury and federal agencies, direct obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities:	23,525,000,000	8,301,000,000
Recurring | Quoted Market Prices in Active Markets (Level 1) | US Treasury and federal agencies, mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities:	0	0
Recurring | Quoted Market Prices in Active Markets (Level 1) | Total U.S. Treasury and federal agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities:	23,525,000,000	8,301,000,000
Recurring | Quoted Market Prices in Active Markets (Level 1) | Non-U.S. debt securities, mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities:	0	0
Recurring | Quoted Market Prices in Active Markets (Level 1) | Non-U.S. debt securities, asset-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities:	0	0
Recurring | Quoted Market Prices in Active Markets (Level 1) | Non-U.S. sovereign, supranational and non-U.S. agency
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities:	0	0
Recurring | Quoted Market Prices in Active Markets (Level 1) | Non-U.S. debt securities, other
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities:	0	0
Recurring | Quoted Market Prices in Active Markets (Level 1) | Total non-U.S. debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities:	0	0
Recurring | Quoted Market Prices in Active Markets (Level 1) | Asset-backed securities, student loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities:	0	0
Recurring | Quoted Market Prices in Active Markets (Level 1) | Asset-backed securities, collateralized loan obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities:	0	0
Recurring | Quoted Market Prices in Active Markets (Level 1) | Asset-backed securities, non-agency CMBS and RMBS
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities:	0	0
Recurring | Quoted Market Prices in Active Markets (Level 1) | Asset-backed securities, other
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities:	0	0
Recurring | Quoted Market Prices in Active Markets (Level 1) | Total asset-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities:	0	0
Recurring | Quoted Market Prices in Active Markets (Level 1) | State and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities:	0	0
Recurring | Pricing Methods with Significant Observable Market Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading account assets	734,000,000	737,000,000
Available-for-sale investment securities:	35,370,000,000	36,225,000,000
Derivative asset	29,445,000,000	19,703,000,000
Other	747,000,000	640,000,000
Total assets carried at fair value	66,296,000,000	57,305,000,000
Derivative liability	29,124,000,000	19,596,000,000
Total liabilities carried at fair value	29,124,000,000	19,596,000,000
Recurring | Pricing Methods with Significant Observable Market Inputs (Level 2)  | Foreign exchange contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset	29,422,000,000	19,690,000,000
Derivative liability	28,904,000,000	19,414,000,000
Recurring | Pricing Methods with Significant Observable Market Inputs (Level 2)  | Interest rate contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset	23,000,000	13,000,000
Derivative liability	1,000,000	0
Recurring | Pricing Methods with Significant Observable Market Inputs (Level 2)  | Other derivative contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability	219,000,000	182,000,000
Recurring | Pricing Methods with Significant Observable Market Inputs (Level 2)  | Other derivative contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset	0
Recurring | Pricing Methods with Significant Observable Market Inputs (Level 2)  | U.S. government securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading account assets	0	0
Recurring | Pricing Methods with Significant Observable Market Inputs (Level 2)  | Non-U.S. government securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading account assets	121,000,000	138,000,000
Recurring | Pricing Methods with Significant Observable Market Inputs (Level 2)  | Other
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading account assets	613,000,000	599,000,000
Available-for-sale investment securities:	52,000,000	306,000,000
Recurring | Pricing Methods with Significant Observable Market Inputs (Level 2)  | US Treasury and federal agencies, direct obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities:	0	0
Recurring | Pricing Methods with Significant Observable Market Inputs (Level 2)  | US Treasury and federal agencies, mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities:	10,566,000,000	10,755,000,000
Recurring | Pricing Methods with Significant Observable Market Inputs (Level 2)  | Total U.S. Treasury and federal agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities:	10,566,000,000	10,755,000,000
Recurring | Pricing Methods with Significant Observable Market Inputs (Level 2)  | Non-U.S. debt securities, mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities:	2,430,000,000	1,857,000,000
Recurring | Pricing Methods with Significant Observable Market Inputs (Level 2)  | Non-U.S. debt securities, asset-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities:	1,868,000,000	2,137,000,000
Recurring | Pricing Methods with Significant Observable Market Inputs (Level 2)  | Non-U.S. sovereign, supranational and non-U.S. agency
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities:	13,939,000,000	15,100,000,000
Recurring | Pricing Methods with Significant Observable Market Inputs (Level 2)  | Non-U.S. debt securities, other
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities:	2,821,000,000	2,735,000,000
Recurring | Pricing Methods with Significant Observable Market Inputs (Level 2)  | Total non-U.S. debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities:	21,058,000,000	21,829,000,000
Recurring | Pricing Methods with Significant Observable Market Inputs (Level 2)  | Asset-backed securities, student loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities:	90,000,000	114,000,000
Recurring | Pricing Methods with Significant Observable Market Inputs (Level 2)  | Asset-backed securities, collateralized loan obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities:	3,453,000,000	2,527,000,000
Recurring | Pricing Methods with Significant Observable Market Inputs (Level 2)  | Asset-backed securities, non-agency CMBS and RMBS
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities:	4,000,000	249,000,000
Recurring | Pricing Methods with Significant Observable Market Inputs (Level 2)  | Asset-backed securities, other
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities:	91,000,000	90,000,000
Recurring | Pricing Methods with Significant Observable Market Inputs (Level 2)  | Total asset-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities:	3,638,000,000	2,980,000,000
Recurring | Pricing Methods with Significant Observable Market Inputs (Level 2)  | State and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities:	56,000,000	355,000,000
Recurring | Pricing Methods with Significant Unobservable Market Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading account assets	0	0
Available-for-sale investment securities:	0	0
Derivative asset	1,000,000	4,000,000
Other	0	0
Total assets carried at fair value	1,000,000	4,000,000
Derivative liability	0	1,000,000
Total liabilities carried at fair value	0	1,000,000
Recurring | Pricing Methods with Significant Unobservable Market Inputs (Level 3) | Foreign exchange contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset	1,000,000	4,000,000
Derivative liability	0	1,000,000
Recurring | Pricing Methods with Significant Unobservable Market Inputs (Level 3) | Interest rate contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset	0	0
Derivative liability	0	0
Recurring | Pricing Methods with Significant Unobservable Market Inputs (Level 3) | Other derivative contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability	0	0
Recurring | Pricing Methods with Significant Unobservable Market Inputs (Level 3) | Other derivative contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset	0
Recurring | Pricing Methods with Significant Unobservable Market Inputs (Level 3) | U.S. government securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading account assets	0	0
Recurring | Pricing Methods with Significant Unobservable Market Inputs (Level 3) | Non-U.S. government securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading account assets	0	0
Recurring | Pricing Methods with Significant Unobservable Market Inputs (Level 3) | Other
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading account assets	0	0
Available-for-sale investment securities:	0	0
Recurring | Pricing Methods with Significant Unobservable Market Inputs (Level 3) | US Treasury and federal agencies, direct obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities:	0	0
Recurring | Pricing Methods with Significant Unobservable Market Inputs (Level 3) | US Treasury and federal agencies, mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities:	0	0
Recurring | Pricing Methods with Significant Unobservable Market Inputs (Level 3) | Total U.S. Treasury and federal agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities:	0	0
Recurring | Pricing Methods with Significant Unobservable Market Inputs (Level 3) | Non-U.S. debt securities, mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities:	0	0
Recurring | Pricing Methods with Significant Unobservable Market Inputs (Level 3) | Non-U.S. debt securities, asset-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities:	0	0
Recurring | Pricing Methods with Significant Unobservable Market Inputs (Level 3) | Non-U.S. sovereign, supranational and non-U.S. agency
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities:	0	0
Recurring | Pricing Methods with Significant Unobservable Market Inputs (Level 3) | Non-U.S. debt securities, other
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities:	0	0
Recurring | Pricing Methods with Significant Unobservable Market Inputs (Level 3) | Total non-U.S. debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities:	0	0
Recurring | Pricing Methods with Significant Unobservable Market Inputs (Level 3) | Asset-backed securities, student loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities:	0	0
Recurring | Pricing Methods with Significant Unobservable Market Inputs (Level 3) | Asset-backed securities, collateralized loan obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities:	0	0
Recurring | Pricing Methods with Significant Unobservable Market Inputs (Level 3) | Asset-backed securities, non-agency CMBS and RMBS
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities:	0	0
Recurring | Pricing Methods with Significant Unobservable Market Inputs (Level 3) | Asset-backed securities, other
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities:	0	0
Recurring | Pricing Methods with Significant Unobservable Market Inputs (Level 3) | Total asset-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities:	0	0
Recurring | Pricing Methods with Significant Unobservable Market Inputs (Level 3) | State and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities:	$ 0	$ 0

Fair Value - Carrying Value and

Fair Value - Carrying Value and Estimated Fair Value of Financial Instruments (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Financial Assets:
Cash and due from banks	$ 3,145	$ 4,047
Interest-bearing deposits with banks	112,957	87,665
Securities purchased under resale agreements	6,679	6,692
Investment securities held-to-maturity	41,906	51,503
Financial Liabilities:
Non-interest-bearing	33,180	32,569
Interest-bearing - U.S.	166,483	121,738
Interest-bearing - non-U.S.	62,257	66,663
Securities sold under repurchase agreements	3,681	1,867
Other short-term borrowings	9,840	3,660
Pricing Methods with Significant Observable Market Inputs (Level 2)
Financial Assets:
Net loans	14
Reported Amount
Financial Assets:
Cash and due from banks	3,145	4,047
Interest-bearing deposits with banks	112,957	87,665
Securities purchased under resale agreements	6,679	6,692
Investment securities held-to-maturity	47,727	57,117
Net loans	43,026	36,496
Other	6,752	6,866
Financial Liabilities:
Non-interest-bearing	33,180	32,569
Interest-bearing - U.S.	166,483	121,738
Interest-bearing - non-U.S.	62,257	66,663
Securities sold under repurchase agreements	3,681	1,867
Other short-term borrowings	9,840	3,660
Long-term debt	23,272	18,839
Other	6,752	6,866
Estimated Fair Value
Financial Assets:
Cash and due from banks	3,145	4,047
Interest-bearing deposits with banks	112,957	87,665
Securities purchased under resale agreements	6,679	6,692
Investment securities held-to-maturity	41,906	51,503
Net loans	42,839	36,335
Other	6,752	6,866
Financial Liabilities:
Non-interest-bearing	33,180	32,569
Interest-bearing - U.S.	166,483	121,738
Interest-bearing - non-U.S.	62,257	66,663
Securities sold under repurchase agreements	3,681	1,867
Other short-term borrowings	9,840	3,660
Long-term debt	23,078	18,417
Other	6,752	6,866
Estimated Fair Value | Quoted Market Prices in Active Markets (Level 1)
Financial Assets:
Cash and due from banks	3,145	4,047
Interest-bearing deposits with banks	0	0
Securities purchased under resale agreements	0	0
Investment securities held-to-maturity	5,354	8,409
Net loans	0	0
Other	0	0
Financial Liabilities:
Non-interest-bearing	0	0
Interest-bearing - U.S.	0	0
Interest-bearing - non-U.S.	0	0
Securities sold under repurchase agreements	0	0
Other short-term borrowings	0	0
Long-term debt	0	0
Other	0	0
Estimated Fair Value | Pricing Methods with Significant Observable Market Inputs (Level 2)
Financial Assets:
Cash and due from banks	0	0
Interest-bearing deposits with banks	112,957	87,665
Securities purchased under resale agreements	6,679	6,692
Investment securities held-to-maturity	36,552	43,094
Net loans	41,097	34,308
Other	6,752	6,866
Financial Liabilities:
Non-interest-bearing	33,180	32,569
Interest-bearing - U.S.	166,483	121,738
Interest-bearing - non-U.S.	62,257	66,663
Securities sold under repurchase agreements	3,681	1,867
Other short-term borrowings	9,840	3,660
Long-term debt	22,882	18,216
Other	6,752	6,866
Estimated Fair Value | Pricing Methods with Significant Unobservable Market Inputs (Level 3)
Financial Assets:
Cash and due from banks	0	0
Interest-bearing deposits with banks	0	0
Securities purchased under resale agreements	0	0
Investment securities held-to-maturity	0	0
Net loans	1,742	2,027
Other	0	0
Financial Liabilities:
Non-interest-bearing	0	0
Interest-bearing - U.S.	0	0
Interest-bearing - non-U.S.	0	0
Securities sold under repurchase agreements	0	0
Other short-term borrowings	0	0
Long-term debt	196	201
Other	$ 0	$ 0

Investment Securities - Schedul

Investment Securities - Schedule of Marketable Securities (Details) - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Available-For-Sale and Held-To-Maturity-Securities [Line Items]
Available for sale, amortized cost	$ 59,006,000,000	$ 44,853,000,000
Available for sale, gross unrealized gains	172,000,000	209,000,000
Available for sale, gross unrealized losses	283,000,000	536,000,000
Available-for-sale investment securities:	58,895,000,000	44,526,000,000
Held to maturity, amortized cost	47,727,000,000	57,117,000,000
Investment securities held-to-maturity	41,906,000,000	51,503,000,000
Debt securities, HTM, allowance	0	1,000,000	$ 0
US Treasury and federal agencies, direct obligations
Available-For-Sale and Held-To-Maturity-Securities [Line Items]
Available for sale, amortized cost	23,539,000,000	8,427,000,000
Available for sale, gross unrealized gains	38,000,000	39,000,000
Available for sale, gross unrealized losses	52,000,000	165,000,000
Available-for-sale investment securities:	23,525,000,000	8,301,000,000
Held to maturity, amortized cost	5,417,000,000	8,584,000,000
Held to maturity, gross unrealized gains	0	0
Held to maturity, gross unrealized losses	55,000,000	163,000,000
Investment securities held-to-maturity	5,362,000,000	8,421,000,000
US Treasury and federal agencies, mortgage-backed securities
Available-For-Sale and Held-To-Maturity-Securities [Line Items]
Available for sale, amortized cost	10,699,000,000	10,870,000,000
Available for sale, gross unrealized gains	21,000,000	49,000,000
Available for sale, gross unrealized losses	154,000,000	164,000,000
Available-for-sale investment securities:	10,566,000,000	10,755,000,000
Held to maturity, amortized cost	36,101,000,000	39,472,000,000
Held to maturity, gross unrealized gains	2,000,000	7,000,000
Held to maturity, gross unrealized losses	5,677,000,000	5,271,000,000
Investment securities held-to-maturity	30,426,000,000	34,208,000,000
Total U.S. Treasury and federal agencies
Available-For-Sale and Held-To-Maturity-Securities [Line Items]
Available for sale, amortized cost	34,238,000,000	19,297,000,000
Available for sale, gross unrealized gains	59,000,000	88,000,000
Available for sale, gross unrealized losses	206,000,000	329,000,000
Available-for-sale investment securities:	34,091,000,000	19,056,000,000
Held to maturity, amortized cost	41,518,000,000	48,056,000,000
Held to maturity, gross unrealized gains	2,000,000	7,000,000
Held to maturity, gross unrealized losses	5,732,000,000	5,434,000,000
Investment securities held-to-maturity	35,788,000,000	42,629,000,000
Non-U.S. debt securities, mortgage-backed securities
Available-For-Sale and Held-To-Maturity-Securities [Line Items]
Available for sale, amortized cost	2,426,000,000	1,861,000,000
Available for sale, gross unrealized gains	5,000,000	3,000,000
Available for sale, gross unrealized losses	1,000,000	7,000,000
Available-for-sale investment securities:	2,430,000,000	1,857,000,000
Non-U.S. debt securities, asset-backed securities
Available-For-Sale and Held-To-Maturity-Securities [Line Items]
Available for sale, amortized cost	1,865,000,000	2,148,000,000
Available for sale, gross unrealized gains	5,000,000	2,000,000
Available for sale, gross unrealized losses	2,000,000	13,000,000
Available-for-sale investment securities:	1,868,000,000	2,137,000,000
Non-U.S. sovereign, supranational and non-U.S. agency
Available-For-Sale and Held-To-Maturity-Securities [Line Items]
Available for sale, amortized cost	13,954,000,000	15,159,000,000
Available for sale, gross unrealized gains	54,000,000	73,000,000
Available for sale, gross unrealized losses	69,000,000	132,000,000
Available-for-sale investment securities:	13,939,000,000	15,100,000,000
Held to maturity, amortized cost	3,673,000,000	5,757,000,000
Held to maturity, gross unrealized gains	7,000,000	8,000,000
Held to maturity, gross unrealized losses	73,000,000	153,000,000
Investment securities held-to-maturity	3,607,000,000	5,612,000,000
Non-U.S. debt securities, other
Available-For-Sale and Held-To-Maturity-Securities [Line Items]
Available for sale, amortized cost	2,787,000,000	2,733,000,000
Available for sale, gross unrealized gains	38,000,000	39,000,000
Available for sale, gross unrealized losses	4,000,000	37,000,000
Available-for-sale investment securities:	2,821,000,000	2,735,000,000
Total non-U.S. debt securities
Available-For-Sale and Held-To-Maturity-Securities [Line Items]
Available for sale, amortized cost	21,032,000,000	21,901,000,000
Available for sale, gross unrealized gains	102,000,000	117,000,000
Available for sale, gross unrealized losses	76,000,000	189,000,000
Available-for-sale investment securities:	21,058,000,000	21,829,000,000
Held to maturity, amortized cost	3,673,000,000	5,757,000,000
Held to maturity, gross unrealized gains	7,000,000	8,000,000
Held to maturity, gross unrealized losses	73,000,000	153,000,000
Investment securities held-to-maturity	3,607,000,000	5,612,000,000
Asset-backed securities, student loans
Available-For-Sale and Held-To-Maturity-Securities [Line Items]
Available for sale, amortized cost	89,000,000	113,000,000
Available for sale, gross unrealized gains	1,000,000	1,000,000
Available for sale, gross unrealized losses	0	0
Available-for-sale investment securities:	90,000,000	114,000,000
Held to maturity, amortized cost	2,536,000,000	3,298,000,000
Held to maturity, gross unrealized gains	4,000,000	2,000,000
Held to maturity, gross unrealized losses	29,000,000	62,000,000
Investment securities held-to-maturity	2,511,000,000	3,238,000,000
Asset-backed securities, collateralized loan obligations
Available-For-Sale and Held-To-Maturity-Securities [Line Items]
Available for sale, amortized cost	3,447,000,000	90,000,000
Available for sale, gross unrealized gains	6,000,000	0
Available for sale, gross unrealized losses	0	0
Available-for-sale investment securities:	3,453,000,000	90,000,000
Asset-backed securities, non-agency CMBS and RMBS
Available-For-Sale and Held-To-Maturity-Securities [Line Items]
Available for sale, amortized cost	1,000,000	252,000,000
Available for sale, gross unrealized gains	3,000,000	0
Available for sale, gross unrealized losses	0	3,000,000
Available-for-sale investment securities:	4,000,000	249,000,000
Held to maturity, amortized cost	0	6,000,000
Held to maturity, gross unrealized gains	0	18,000,000
Held to maturity, gross unrealized losses	0	0
Investment securities held-to-maturity	0	24,000,000
Asset-backed securities, other
Available-For-Sale and Held-To-Maturity-Securities [Line Items]
Available for sale, amortized cost	90,000,000	2,530,000,000
Available for sale, gross unrealized gains	1,000,000	3,000,000
Available for sale, gross unrealized losses	0	6,000,000
Available-for-sale investment securities:	91,000,000	2,527,000,000
Total asset-backed securities
Available-For-Sale and Held-To-Maturity-Securities [Line Items]
Available for sale, amortized cost	3,627,000,000	2,985,000,000
Available for sale, gross unrealized gains	11,000,000	4,000,000
Available for sale, gross unrealized losses	0	9,000,000
Available-for-sale investment securities:	3,638,000,000	2,980,000,000
Held to maturity, amortized cost	2,536,000,000	3,304,000,000
Held to maturity, gross unrealized gains	4,000,000	20,000,000
Held to maturity, gross unrealized losses	29,000,000	62,000,000
Investment securities held-to-maturity	2,511,000,000	3,262,000,000
State and political subdivisions
Available-For-Sale and Held-To-Maturity-Securities [Line Items]
Available for sale, amortized cost	56,000,000	356,000,000
Available for sale, gross unrealized gains	0	0
Available for sale, gross unrealized losses	0	1,000,000
Available-for-sale investment securities:	56,000,000	355,000,000
Other U.S. debt securities
Available-For-Sale and Held-To-Maturity-Securities [Line Items]
Available for sale, amortized cost	53,000,000	314,000,000
Available for sale, gross unrealized gains	0	0
Available for sale, gross unrealized losses	1,000,000	8,000,000
Available-for-sale investment securities:	52,000,000	306,000,000
Including money market mutual fund liquidity facility
Available-For-Sale and Held-To-Maturity-Securities [Line Items]
Held to maturity, amortized cost	47,727,000,000	57,117,000,000
Held to maturity, gross unrealized gains	13,000,000	35,000,000
Held to maturity, gross unrealized losses	5,834,000,000	5,649,000,000
Investment securities held-to-maturity	41,906,000,000	51,503,000,000
Agency CMBS
Available-For-Sale and Held-To-Maturity-Securities [Line Items]
Available for sale, amortized cost	4,360,000,000	5,540,000,000
Held to maturity, amortized cost	5,180,000,000	5,230,000,000
Agency MBS
Available-For-Sale and Held-To-Maturity-Securities [Line Items]
Available for sale, amortized cost	6,200,000,000	5,210,000,000
Non-US collateralized loan obligations
Available-For-Sale and Held-To-Maturity-Securities [Line Items]
Available for sale, amortized cost	700,000,000	1,020,000,000
Non-U.S. debt securities, corporate bonds
Available-For-Sale and Held-To-Maturity-Securities [Line Items]
Available for sale, amortized cost	$ 2,540,000,000	2,360,000,000
Federal family education loan program
Available-For-Sale and Held-To-Maturity-Securities [Line Items]
Federal government credit support guarantee, percentage minimum	97%
US corporate bonds
Available-For-Sale and Held-To-Maturity-Securities [Line Items]
Available for sale, amortized cost	$ 50,000,000	$ 310,000,000

Investment Securities - Narrati

Investment Securities - Narrative (Details) - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Gains (losses) from sales of available-for-sale securities, net	$ 79,000,000	$ 294,000,000	$ 2,000,000
Debt securities, AFS, allowance	0	0	2,000,000
Asset Pledged as Collateral
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Pledged securities not separately reported	86,700,000,000	71,300,000,000
ABS and municipal bonds
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Securities sold	10,970,000,000	4,920,000,000	4,590,000,000
Gains (losses) from sales of available-for-sale securities, net	$ 79,000,000	$ 294,000,000	$ 2,000,000

Investment Securities - Sched_2

Investment Securities - Schedule of Gross Pre-Tax Unrealized Losses on Investment Securities (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Gross Pre-Tax Unrealized Losses On Investment Securities [Line Items]
Available for sale, fair value less than 12 months	$ 18,678	$ 6,383
Available for sale, gross unrealized losses less than 12 months	136	16
Available for sale, fair value 12 months or longer	10,412	22,572
Available for sale, gross unrealized losses 12 months or longer	147	520
Available for sale, fair value total	29,090	28,955
Available for sale, gross unrealized losses total	283	536
US Treasury and federal agencies, direct obligations
Gross Pre-Tax Unrealized Losses On Investment Securities [Line Items]
Available for sale, fair value less than 12 months	8,113	333
Available for sale, gross unrealized losses less than 12 months	25	2
Available for sale, fair value 12 months or longer	2,435	5,416
Available for sale, gross unrealized losses 12 months or longer	27	163
Available for sale, fair value total	10,548	5,749
Available for sale, gross unrealized losses total	52	165
US Treasury and federal agencies, mortgage-backed securities
Gross Pre-Tax Unrealized Losses On Investment Securities [Line Items]
Available for sale, fair value less than 12 months	3,742	961
Available for sale, gross unrealized losses less than 12 months	59	6
Available for sale, fair value 12 months or longer	4,360	6,512
Available for sale, gross unrealized losses 12 months or longer	95	158
Available for sale, fair value total	8,102	7,473
Available for sale, gross unrealized losses total	154	164
Total U.S. Treasury and federal agencies
Gross Pre-Tax Unrealized Losses On Investment Securities [Line Items]
Available for sale, fair value less than 12 months	11,855	1,294
Available for sale, gross unrealized losses less than 12 months	84	8
Available for sale, fair value 12 months or longer	6,795	11,928
Available for sale, gross unrealized losses 12 months or longer	122	321
Available for sale, fair value total	18,650	13,222
Available for sale, gross unrealized losses total	206	329
Non-U.S. debt securities, mortgage-backed securities
Gross Pre-Tax Unrealized Losses On Investment Securities [Line Items]
Available for sale, fair value less than 12 months	730	424
Available for sale, gross unrealized losses less than 12 months	1	1
Available for sale, fair value 12 months or longer	225	719
Available for sale, gross unrealized losses 12 months or longer	0	6
Available for sale, fair value total	955	1,143
Available for sale, gross unrealized losses total	1	7
Non-U.S. debt securities, asset-backed securities
Gross Pre-Tax Unrealized Losses On Investment Securities [Line Items]
Available for sale, fair value less than 12 months	387	358
Available for sale, gross unrealized losses less than 12 months	0	0
Available for sale, fair value 12 months or longer	506	1,052
Available for sale, gross unrealized losses 12 months or longer	2	13
Available for sale, fair value total	893	1,410
Available for sale, gross unrealized losses total	2	13
Non-U.S. sovereign, supranational and non-U.S. agency
Gross Pre-Tax Unrealized Losses On Investment Securities [Line Items]
Available for sale, fair value less than 12 months	4,695	3,972
Available for sale, gross unrealized losses less than 12 months	49	7
Available for sale, fair value 12 months or longer	2,695	5,788
Available for sale, gross unrealized losses 12 months or longer	20	125
Available for sale, fair value total	7,390	9,760
Available for sale, gross unrealized losses total	69	132
Non-U.S. debt securities, other
Gross Pre-Tax Unrealized Losses On Investment Securities [Line Items]
Available for sale, fair value less than 12 months	312	50
Available for sale, gross unrealized losses less than 12 months	2	0
Available for sale, fair value 12 months or longer	116	893
Available for sale, gross unrealized losses 12 months or longer	2	37
Available for sale, fair value total	428	943
Available for sale, gross unrealized losses total	4	37
Total non-U.S. debt securities
Gross Pre-Tax Unrealized Losses On Investment Securities [Line Items]
Available for sale, fair value less than 12 months	6,124	4,804
Available for sale, gross unrealized losses less than 12 months	52	8
Available for sale, fair value 12 months or longer	3,542	8,452
Available for sale, gross unrealized losses 12 months or longer	24	181
Available for sale, fair value total	9,666	13,256
Available for sale, gross unrealized losses total	76	189
Asset-backed securities, student loans
Gross Pre-Tax Unrealized Losses On Investment Securities [Line Items]
Available for sale, fair value less than 12 months	12
Available for sale, gross unrealized losses less than 12 months	0
Available for sale, fair value 12 months or longer	0
Available for sale, gross unrealized losses 12 months or longer	0
Available for sale, fair value total	12
Available for sale, gross unrealized losses total	0
Asset-backed securities, collateralized loan obligations
Gross Pre-Tax Unrealized Losses On Investment Securities [Line Items]
Available for sale, fair value less than 12 months	684	183
Available for sale, gross unrealized losses less than 12 months	0	0
Available for sale, fair value 12 months or longer	0	1,605
Available for sale, gross unrealized losses 12 months or longer	0	6
Available for sale, fair value total	684	1,788
Available for sale, gross unrealized losses total	0	6
Asset-backed securities, non-agency CMBS and RMBS
Gross Pre-Tax Unrealized Losses On Investment Securities [Line Items]
Available for sale, fair value less than 12 months		35
Available for sale, gross unrealized losses less than 12 months		0
Available for sale, fair value 12 months or longer		180
Available for sale, gross unrealized losses 12 months or longer		3
Available for sale, fair value total		215
Available for sale, gross unrealized losses total		3
Total asset-backed securities
Gross Pre-Tax Unrealized Losses On Investment Securities [Line Items]
Available for sale, fair value less than 12 months	696	218
Available for sale, gross unrealized losses less than 12 months	0	0
Available for sale, fair value 12 months or longer	0	1,785
Available for sale, gross unrealized losses 12 months or longer	0	9
Available for sale, fair value total	696	2,003
Available for sale, gross unrealized losses total	0	9
State and political subdivisions
Gross Pre-Tax Unrealized Losses On Investment Securities [Line Items]
Available for sale, fair value less than 12 months	0	64
Available for sale, gross unrealized losses less than 12 months	0	0
Available for sale, fair value 12 months or longer	26	104
Available for sale, gross unrealized losses 12 months or longer	0	1
Available for sale, fair value total	26	168
Available for sale, gross unrealized losses total	0	1
Other U.S. debt securities
Gross Pre-Tax Unrealized Losses On Investment Securities [Line Items]
Available for sale, fair value less than 12 months	3	3
Available for sale, gross unrealized losses less than 12 months	0	0
Available for sale, fair value 12 months or longer	49	303
Available for sale, gross unrealized losses 12 months or longer	1	8
Available for sale, fair value total	52	306
Available for sale, gross unrealized losses total	$ 1	$ 8

Investment Securities - Sched_3

Investment Securities - Schedule of Contractual Maturities of Debt Securities (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Contractual Maturities Of Debt Investment Securities [Line Items]
Available for sale, under 1 year, amortized cost	$ 12,199
Available for sale, under 1 year, fair value	12,199
Available for sale, 1 to 5 years, amortized cost	28,684
Available for sale, 1 to 5 years, fair value	28,699
Available for sale, 6 to 10 years, amortized cost	8,093
Available for sale, 6 to 10 years, fair value	8,060
Available for sale, over 10 years, amortized cost	10,030
Available for sale, over 10 years, fair value	9,937
Available for sale, amortized cost	59,006	$ 44,853
Available-for-sale investment securities:	58,895	44,526
Held to maturity, amortized cost	47,727	57,117
Investment securities held-to-maturity	41,906	51,503
US Treasury and federal agencies, direct obligations
Contractual Maturities Of Debt Investment Securities [Line Items]
Available for sale, under 1 year, amortized cost	8,619
Available for sale, under 1 year, fair value	8,625
Available for sale, 1 to 5 years, amortized cost	13,485
Available for sale, 1 to 5 years, fair value	13,474
Available for sale, 6 to 10 years, amortized cost	1,435
Available for sale, 6 to 10 years, fair value	1,426
Available for sale, over 10 years, amortized cost	0
Available for sale, over 10 years, fair value	0
Available for sale, amortized cost	23,539	8,427
Available-for-sale investment securities:	23,525	8,301
Held to maturity, under 1 year, amortized cost	4,557
Held to maturity, under 1 year, fair value	4,521
Held to maturity, 1 to 5 years, amortized cost	851
Held to maturity, 1 to 5 years, fair value	832
Held to maturity, 6 to 10 years, amortized cost	1
Held to maturity, 6 to 10 years, fair value	1
Held to maturity, over 10 years, amortized cost	8
Held to maturity, over 10 years, fair value	8
Held to maturity, amortized cost	5,417	8,584
Investment securities held-to-maturity	5,362	8,421
US Treasury and federal agencies, mortgage-backed securities
Contractual Maturities Of Debt Investment Securities [Line Items]
Available for sale, under 1 year, amortized cost	49
Available for sale, under 1 year, fair value	49
Available for sale, 1 to 5 years, amortized cost	1,824
Available for sale, 1 to 5 years, fair value	1,819
Available for sale, 6 to 10 years, amortized cost	2,517
Available for sale, 6 to 10 years, fair value	2,493
Available for sale, over 10 years, amortized cost	6,309
Available for sale, over 10 years, fair value	6,205
Available for sale, amortized cost	10,699	10,870
Available-for-sale investment securities:	10,566	10,755
Held to maturity, under 1 year, amortized cost	134
Held to maturity, under 1 year, fair value	120
Held to maturity, 1 to 5 years, amortized cost	1,711
Held to maturity, 1 to 5 years, fair value	1,559
Held to maturity, 6 to 10 years, amortized cost	3,308
Held to maturity, 6 to 10 years, fair value	2,788
Held to maturity, over 10 years, amortized cost	30,948
Held to maturity, over 10 years, fair value	25,959
Held to maturity, amortized cost	36,101	39,472
Investment securities held-to-maturity	30,426	34,208
Total U.S. Treasury and federal agencies
Contractual Maturities Of Debt Investment Securities [Line Items]
Available for sale, under 1 year, amortized cost	8,668
Available for sale, under 1 year, fair value	8,674
Available for sale, 1 to 5 years, amortized cost	15,309
Available for sale, 1 to 5 years, fair value	15,293
Available for sale, 6 to 10 years, amortized cost	3,952
Available for sale, 6 to 10 years, fair value	3,919
Available for sale, over 10 years, amortized cost	6,309
Available for sale, over 10 years, fair value	6,205
Available for sale, amortized cost	34,238	19,297
Available-for-sale investment securities:	34,091	19,056
Held to maturity, under 1 year, amortized cost	4,691
Held to maturity, under 1 year, fair value	4,641
Held to maturity, 1 to 5 years, amortized cost	2,562
Held to maturity, 1 to 5 years, fair value	2,391
Held to maturity, 6 to 10 years, amortized cost	3,309
Held to maturity, 6 to 10 years, fair value	2,789
Held to maturity, over 10 years, amortized cost	30,956
Held to maturity, over 10 years, fair value	25,967
Held to maturity, amortized cost	41,518	48,056
Investment securities held-to-maturity	35,788	42,629
Non-U.S. debt securities, mortgage-backed securities
Contractual Maturities Of Debt Investment Securities [Line Items]
Available for sale, under 1 year, amortized cost	58
Available for sale, under 1 year, fair value	58
Available for sale, 1 to 5 years, amortized cost	427
Available for sale, 1 to 5 years, fair value	427
Available for sale, 6 to 10 years, amortized cost	38
Available for sale, 6 to 10 years, fair value	38
Available for sale, over 10 years, amortized cost	1,903
Available for sale, over 10 years, fair value	1,907
Available for sale, amortized cost	2,426	1,861
Available-for-sale investment securities:	2,430	1,857
Non-U.S. debt securities, asset-backed securities
Contractual Maturities Of Debt Investment Securities [Line Items]
Available for sale, under 1 year, amortized cost	276
Available for sale, under 1 year, fair value	276
Available for sale, 1 to 5 years, amortized cost	279
Available for sale, 1 to 5 years, fair value	279
Available for sale, 6 to 10 years, amortized cost	1,005
Available for sale, 6 to 10 years, fair value	1,007
Available for sale, over 10 years, amortized cost	305
Available for sale, over 10 years, fair value	306
Available for sale, amortized cost	1,865	2,148
Available-for-sale investment securities:	1,868	2,137
Non-U.S. sovereign, supranational and non-U.S. agency
Contractual Maturities Of Debt Investment Securities [Line Items]
Available for sale, under 1 year, amortized cost	2,706
Available for sale, under 1 year, fair value	2,700
Available for sale, 1 to 5 years, amortized cost	10,138
Available for sale, 1 to 5 years, fair value	10,136
Available for sale, 6 to 10 years, amortized cost	1,110
Available for sale, 6 to 10 years, fair value	1,103
Available for sale, over 10 years, amortized cost	0
Available for sale, over 10 years, fair value	0
Available for sale, amortized cost	13,954	15,159
Available-for-sale investment securities:	13,939	15,100
Held to maturity, under 1 year, amortized cost	1,409
Held to maturity, under 1 year, fair value	1,397
Held to maturity, 1 to 5 years, amortized cost	2,044
Held to maturity, 1 to 5 years, fair value	1,998
Held to maturity, 6 to 10 years, amortized cost	220
Held to maturity, 6 to 10 years, fair value	212
Held to maturity, over 10 years, amortized cost	0
Held to maturity, over 10 years, fair value	0
Held to maturity, amortized cost	3,673	5,757
Investment securities held-to-maturity	3,607	5,612
Non-U.S. debt securities, other
Contractual Maturities Of Debt Investment Securities [Line Items]
Available for sale, under 1 year, amortized cost	371
Available for sale, under 1 year, fair value	371
Available for sale, 1 to 5 years, amortized cost	2,314
Available for sale, 1 to 5 years, fair value	2,346
Available for sale, 6 to 10 years, amortized cost	102
Available for sale, 6 to 10 years, fair value	104
Available for sale, over 10 years, amortized cost	0
Available for sale, over 10 years, fair value	0
Available for sale, amortized cost	2,787	2,733
Available-for-sale investment securities:	2,821	2,735
Total non-U.S. debt securities
Contractual Maturities Of Debt Investment Securities [Line Items]
Available for sale, under 1 year, amortized cost	3,411
Available for sale, under 1 year, fair value	3,405
Available for sale, 1 to 5 years, amortized cost	13,158
Available for sale, 1 to 5 years, fair value	13,188
Available for sale, 6 to 10 years, amortized cost	2,255
Available for sale, 6 to 10 years, fair value	2,252
Available for sale, over 10 years, amortized cost	2,208
Available for sale, over 10 years, fair value	2,213
Available for sale, amortized cost	21,032	21,901
Available-for-sale investment securities:	21,058	21,829
Held to maturity, under 1 year, amortized cost	1,409
Held to maturity, under 1 year, fair value	1,397
Held to maturity, 1 to 5 years, amortized cost	2,044
Held to maturity, 1 to 5 years, fair value	1,998
Held to maturity, 6 to 10 years, amortized cost	220
Held to maturity, 6 to 10 years, fair value	212
Held to maturity, over 10 years, amortized cost	0
Held to maturity, over 10 years, fair value	0
Held to maturity, amortized cost	3,673	5,757
Investment securities held-to-maturity	3,607	5,612
Asset-backed securities, student loans
Contractual Maturities Of Debt Investment Securities [Line Items]
Available for sale, under 1 year, amortized cost	23
Available for sale, under 1 year, fair value	24
Available for sale, 1 to 5 years, amortized cost	0
Available for sale, 1 to 5 years, fair value	0
Available for sale, 6 to 10 years, amortized cost	12
Available for sale, 6 to 10 years, fair value	12
Available for sale, over 10 years, amortized cost	54
Available for sale, over 10 years, fair value	54
Available for sale, amortized cost	89	113
Available-for-sale investment securities:	90	114
Held to maturity, under 1 year, amortized cost	149
Held to maturity, under 1 year, fair value	147
Held to maturity, 1 to 5 years, amortized cost	310
Held to maturity, 1 to 5 years, fair value	309
Held to maturity, 6 to 10 years, amortized cost	380
Held to maturity, 6 to 10 years, fair value	379
Held to maturity, over 10 years, amortized cost	1,697
Held to maturity, over 10 years, fair value	1,676
Held to maturity, amortized cost	2,536	3,298
Investment securities held-to-maturity	2,511	3,238
Asset-backed securities, collateralized loan obligations
Contractual Maturities Of Debt Investment Securities [Line Items]
Available for sale, under 1 year, amortized cost	37
Available for sale, under 1 year, fair value	37
Available for sale, 1 to 5 years, amortized cost	78
Available for sale, 1 to 5 years, fair value	78
Available for sale, 6 to 10 years, amortized cost	1,874
Available for sale, 6 to 10 years, fair value	1,877
Available for sale, over 10 years, amortized cost	1,458
Available for sale, over 10 years, fair value	1,461
Available for sale, amortized cost	3,447	90
Available-for-sale investment securities:	3,453	90
Asset-backed securities, non-agency CMBS and RMBS
Contractual Maturities Of Debt Investment Securities [Line Items]
Available for sale, under 1 year, amortized cost	0
Available for sale, under 1 year, fair value	0
Available for sale, 1 to 5 years, amortized cost	0
Available for sale, 1 to 5 years, fair value	0
Available for sale, 6 to 10 years, amortized cost	0
Available for sale, 6 to 10 years, fair value	0
Available for sale, over 10 years, amortized cost	1
Available for sale, over 10 years, fair value	4
Available for sale, amortized cost	1	252
Available-for-sale investment securities:	4	249
Held to maturity, amortized cost	0	6
Investment securities held-to-maturity	0	24
Asset-backed securities, other
Contractual Maturities Of Debt Investment Securities [Line Items]
Available for sale, under 1 year, amortized cost	0
Available for sale, under 1 year, fair value	0
Available for sale, 1 to 5 years, amortized cost	90
Available for sale, 1 to 5 years, fair value	91
Available for sale, 6 to 10 years, amortized cost	0
Available for sale, 6 to 10 years, fair value	0
Available for sale, over 10 years, amortized cost	0
Available for sale, over 10 years, fair value	0
Available for sale, amortized cost	90	2,530
Available-for-sale investment securities:	91	2,527
Total asset-backed securities
Contractual Maturities Of Debt Investment Securities [Line Items]
Available for sale, under 1 year, amortized cost	60
Available for sale, under 1 year, fair value	61
Available for sale, 1 to 5 years, amortized cost	168
Available for sale, 1 to 5 years, fair value	169
Available for sale, 6 to 10 years, amortized cost	1,886
Available for sale, 6 to 10 years, fair value	1,889
Available for sale, over 10 years, amortized cost	1,513
Available for sale, over 10 years, fair value	1,519
Available for sale, amortized cost	3,627	2,985
Available-for-sale investment securities:	3,638	2,980
Held to maturity, under 1 year, amortized cost	149
Held to maturity, under 1 year, fair value	147
Held to maturity, 1 to 5 years, amortized cost	310
Held to maturity, 1 to 5 years, fair value	309
Held to maturity, 6 to 10 years, amortized cost	380
Held to maturity, 6 to 10 years, fair value	379
Held to maturity, over 10 years, amortized cost	1,697
Held to maturity, over 10 years, fair value	1,676
Held to maturity, amortized cost	2,536	3,304
Investment securities held-to-maturity	2,511	3,262
State and political subdivisions
Contractual Maturities Of Debt Investment Securities [Line Items]
Available for sale, under 1 year, amortized cost	30
Available for sale, under 1 year, fair value	30
Available for sale, 1 to 5 years, amortized cost	26
Available for sale, 1 to 5 years, fair value	26
Available for sale, 6 to 10 years, amortized cost	0
Available for sale, 6 to 10 years, fair value	0
Available for sale, over 10 years, amortized cost	0
Available for sale, over 10 years, fair value	0
Available for sale, amortized cost	56	356
Available-for-sale investment securities:	56	355
Other U.S. debt securities
Contractual Maturities Of Debt Investment Securities [Line Items]
Available for sale, under 1 year, amortized cost	30
Available for sale, under 1 year, fair value	29
Available for sale, 1 to 5 years, amortized cost	23
Available for sale, 1 to 5 years, fair value	23
Available for sale, 6 to 10 years, amortized cost	0
Available for sale, 6 to 10 years, fair value	0
Available for sale, over 10 years, amortized cost	0
Available for sale, over 10 years, fair value	0
Available for sale, amortized cost	53	314
Available-for-sale investment securities:	52	$ 306
Total HTM and Collateralized Obligations
Contractual Maturities Of Debt Investment Securities [Line Items]
Held to maturity, under 1 year, amortized cost	6,249
Held to maturity, under 1 year, fair value	6,185
Held to maturity, 1 to 5 years, amortized cost	4,916
Held to maturity, 1 to 5 years, fair value	4,698
Held to maturity, 6 to 10 years, amortized cost	3,909
Held to maturity, 6 to 10 years, fair value	3,380
Held to maturity, over 10 years, amortized cost	32,653
Held to maturity, over 10 years, fair value	27,643
Held to maturity, amortized cost	47,727
Investment securities held-to-maturity	$ 41,906

Loans and Allowance for Credi_3

Loans and Allowance for Credit Losses - Net Loans (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	$ 43,200	$ 36,631
Allowance for credit losses	(174)	(135)
Loans, net of allowance	43,026	36,496
Commercial and financial | Securities Finance Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	3,010	2,230
Commercial and financial | Municipal Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	214	276
Commercial and financial | Total Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross		5
Commercial and financial | Floating rate loans excluding overdrafts
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	38,460
Commercial and financial | Fixed Rate Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	2,760
Domestic
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	26,409	23,065
Domestic | Commercial and financial | Fund finance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	16,347	13,697
Domestic | Commercial and financial | Private equity capital call finance loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	11,540	9,690
Domestic | Commercial and financial | 40 Act Funds
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	8,090	6,630
Domestic | Commercial and financial | Business development loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	1,440	1,050
Domestic | Commercial and financial | Leveraged loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	2,742	2,412
Domestic | Commercial and financial | Overdrafts
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	1,208	1,225
Domestic | Commercial and financial | Collateralized loan obligations in loan form
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	50	150
Domestic | Commercial and financial | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	3,220	2,512
Domestic | Commercial real estate | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	2,842	3,069
Foreign
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	16,791	13,566
Foreign | Commercial and financial | Fund finance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	6,601	4,956
Foreign | Commercial and financial | Leveraged loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	1,082	1,194
Foreign | Commercial and financial | Overdrafts
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	772	1,047
Foreign | Commercial and financial | Collateralized loan obligations in loan form
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, gross	$ 8,336	$ 6,369

Loans and Allowance for Credi_4

Loans and Allowance for Credit Losses - Narrative (Details) $ in Millions	12 Months Ended
	Dec. 31, 2024 USD ($) security loan loanSegment	Dec. 31, 2023 USD ($) security loan	Dec. 31, 2022 USD ($)
Financing Receivable, Credit Quality Indicator [Line Items]
Percentage of investment portfolio considered investment grade	99%
Marketable securities, unrealized gain (loss)	$ 6,120	$ 6,190
Number of securities in loss position | security	1,564	1,704
Number of loans and leases segments | loanSegment	2
Financing receivable, excluding accrued interest, after allowance for credit loss	$ 43,026	$ 36,496
Number of loans on non-accrual status | loan	2	3
Financing receivable, nonaccrual	$ 191	$ 70
Sale of loans	246	506	$ 1,786
Provision for credit losses	$ 75	46	$ 20
Investment grade loans	88%
Speculative grade loans	11%
Speculative senior secured loans with BB or B rating	91%
Non-accrual status, more than 90 days
Financing Receivable, Credit Quality Indicator [Line Items]
Number of loans on non-accrual status | loan	1
Financing receivable, nonaccrual	$ 101
Asset Pledged as Collateral
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, excluding accrued interest, after allowance for credit loss	13,900	$ 13,000
Leveraged loans
Financing Receivable, Credit Quality Indicator [Line Items]
Sale of loans	300
Provision for credit losses	$ (37)
Commercial and Financial
Financing Receivable, Credit Quality Indicator [Line Items]
Loans no longer meeting similar risk of collective pool | loan	4
Loans no longer meeting similar risk of collective pool, amount	$ 48
Allowance for credit loss	91
Collateralized loan obligations in loan form
Financing Receivable, Credit Quality Indicator [Line Items]
Payments to acquire loans receivable	$ 3,720
Commercial Real Estate
Financing Receivable, Credit Quality Indicator [Line Items]
Loans no longer meeting similar risk of collective pool | loan	5
Loans no longer meeting similar risk of collective pool, amount	$ 402

Loans and Allowance for Credi_5

Loans and Allowance for Credit Losses - Investments by Credit Quality (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Financing Receivable, Credit Quality Indicator [Line Items]
Total	$ 43,186	$ 36,631
Overdrafts	1,980	2,270
Loans held-for-sale	14
Investment grade
Financing Receivable, Credit Quality Indicator [Line Items]
Total	37,800	32,024
Overdrafts	1,840
Speculative
Financing Receivable, Credit Quality Indicator [Line Items]
Total	4,687	3,995
Overdrafts	140
Special mention
Financing Receivable, Credit Quality Indicator [Line Items]
Total	249	304
Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Total	259	238
Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Total	191	70
Commercial and Financial
Financing Receivable, Credit Quality Indicator [Line Items]
Total	40,344	33,562
Commercial and Financial | Investment grade
Financing Receivable, Credit Quality Indicator [Line Items]
Total	35,831	29,737
Commercial and Financial | Speculative
Financing Receivable, Credit Quality Indicator [Line Items]
Total	4,278	3,546
Commercial and Financial | Special mention
Financing Receivable, Credit Quality Indicator [Line Items]
Total	187	242
Commercial and Financial | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Total	48	14
Commercial and Financial | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Total	0	23
Commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Total	2,842	3,069
Commercial real estate | Investment grade
Financing Receivable, Credit Quality Indicator [Line Items]
Total	1,969	2,287
Commercial real estate | Speculative
Financing Receivable, Credit Quality Indicator [Line Items]
Total	409	449
Commercial real estate | Special mention
Financing Receivable, Credit Quality Indicator [Line Items]
Total	62	62
Commercial real estate | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Total	211	224
Commercial real estate | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Total	$ 191	$ 47

Loans and Allowance for Credi_6

Loans and Allowance for Credit Losses - Amortized Cost Basis (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	$ 8,718	$ 5,572
Year two	2,627	3,020
Year three	1,985	4,685
Year four	3,319	424
Year five	333	1,229
Prior	1,897	1,291
Revolving Loans	24,307	20,410
Loans, gross, excluding loans classified as held-for-sale	43,186	36,631
Accrued interest receivable	327	318
Investment grade
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, gross, excluding loans classified as held-for-sale	37,800	32,024
Speculative
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, gross, excluding loans classified as held-for-sale	4,687	3,995
Special mention
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, gross, excluding loans classified as held-for-sale	249	304
Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, gross, excluding loans classified as held-for-sale	259	238
Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, gross, excluding loans classified as held-for-sale	191	70
Commercial and Financial
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, gross, excluding loans classified as held-for-sale	40,344	33,562
Commercial and Financial | Investment grade
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, gross, excluding loans classified as held-for-sale	35,831	29,737
Commercial and Financial | Speculative
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, gross, excluding loans classified as held-for-sale	4,278	3,546
Commercial and Financial | Special mention
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, gross, excluding loans classified as held-for-sale	187	242
Commercial and Financial | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, gross, excluding loans classified as held-for-sale	48	14
Commercial and Financial | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, gross, excluding loans classified as held-for-sale	0	23
Commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, gross, excluding loans classified as held-for-sale	2,842	3,069
Commercial real estate | Investment grade
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, gross, excluding loans classified as held-for-sale	1,969	2,287
Commercial real estate | Speculative
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, gross, excluding loans classified as held-for-sale	409	449
Commercial real estate | Special mention
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, gross, excluding loans classified as held-for-sale	62	62
Commercial real estate | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, gross, excluding loans classified as held-for-sale	211	224
Commercial real estate | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Loans, gross, excluding loans classified as held-for-sale	191	47
Domestic | Commercial and Financial
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	3,827	2,019
Year two	406	409
Year three	255	1,128
Year four	488	157
Year five	59	579
Prior	352	146
Revolving Loans	18,180	15,557
Loans, gross, excluding loans classified as held-for-sale	23,567	19,995
Domestic | Commercial and Financial | Investment grade
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	1,946	1,399
Year two	223	120
Year three	89	199
Year four	47	8
Year five	6	272
Prior	197	5
Revolving Loans	18,044	15,476
Loans, gross, excluding loans classified as held-for-sale	20,552	17,479
Domestic | Commercial and Financial | Speculative
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	1,834	615
Year two	173	285
Year three	154	747
Year four	387	149
Year five	53	291
Prior	155	141
Revolving Loans	136	81
Loans, gross, excluding loans classified as held-for-sale	2,892	2,309
Domestic | Commercial and Financial | Special mention
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	47	0
Year two	10	4
Year three	0	164
Year four	54	0
Year five	0	16
Prior	0	0
Revolving Loans	0	0
Loans, gross, excluding loans classified as held-for-sale	111	184
Domestic | Commercial and Financial | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	0
Year two	0
Year three	12
Year four	0
Year five	0
Prior	0
Revolving Loans	0
Loans, gross, excluding loans classified as held-for-sale	12
Domestic | Commercial and Financial | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Year one		5
Year two		0
Year three		18
Year four		0
Year five		0
Prior		0
Revolving Loans		0
Loans, gross, excluding loans classified as held-for-sale		23
Domestic | Commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	41	216
Year two	216	520
Year three	508	529
Year four	347	150
Year five	228	541
Prior	1,502	1,113
Revolving Loans	0	0
Loans, gross, excluding loans classified as held-for-sale	2,842	3,069
Domestic | Commercial real estate | Investment grade
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	41	216
Year two	63	500
Year three	488	498
Year four	278	100
Year five	128	375
Prior	971	598
Revolving Loans	0	0
Loans, gross, excluding loans classified as held-for-sale	1,969	2,287
Domestic | Commercial real estate | Speculative
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	0	0
Year two	153	20
Year three	20	31
Year four	69	50
Year five	100	49
Prior	67	299
Revolving Loans	0	0
Loans, gross, excluding loans classified as held-for-sale	409	449
Domestic | Commercial real estate | Special mention
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	0	0
Year two	0	0
Year three	0	0
Year four	0	0
Year five	0	22
Prior	62	40
Revolving Loans	0	0
Loans, gross, excluding loans classified as held-for-sale	62	62
Domestic | Commercial real estate | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	0	0
Year two	0	0
Year three	0	0
Year four	0	0
Year five	0	95
Prior	211	129
Revolving Loans	0	0
Loans, gross, excluding loans classified as held-for-sale	211	224
Domestic | Commercial real estate | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	0	0
Year two	0	0
Year three	0	0
Year four	0	0
Year five	0	0
Prior	191	47
Revolving Loans	0	0
Loans, gross, excluding loans classified as held-for-sale	191	47
Foreign | Commercial and Financial
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	4,850	3,337
Year two	2,005	2,091
Year three	1,222	3,028
Year four	2,484	117
Year five	46	109
Prior	43	32
Revolving Loans	6,127	4,853
Loans, gross, excluding loans classified as held-for-sale	16,777	13,567
Foreign | Commercial and Financial | Investment grade
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	4,243	2,943
Year two	1,796	1,956
Year three	1,152	2,518
Year four	2,187	0
Year five	0	0
Prior	0	0
Revolving Loans	5,901	4,841
Loans, gross, excluding loans classified as held-for-sale	15,279	12,258
Foreign | Commercial and Financial | Speculative
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	607	394
Year two	174	135
Year three	44	481
Year four	246	88
Year five	46	109
Prior	43	18
Revolving Loans	226	12
Loans, gross, excluding loans classified as held-for-sale	1,386	1,237
Foreign | Commercial and Financial | Special mention
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	0	0
Year two	35	0
Year three	26	29
Year four	15	29
Year five	0	0
Prior	0	0
Revolving Loans	0	0
Loans, gross, excluding loans classified as held-for-sale	76	58
Foreign | Commercial and Financial | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	0	0
Year two	0	0
Year three	0	0
Year four	36	0
Year five	0	0
Prior	0	14
Revolving Loans	0	0
Loans, gross, excluding loans classified as held-for-sale	$ 36	$ 14

Loans and Allowance for Credi_7

Loans and Allowance for Credit Losses - Activity in the Allowance for Credit Losses for Loans Held for Investment (Details) - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	$ 135,000,000
Provision for credit losses	75,000,000	$ 46,000,000	$ 20,000,000
Ending balance	174,000,000	135,000,000
Debt Securities, Available-for-Sale, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
AFS allowance, beginning balance	0	2,000,000
AFS, provision		(2,000,000)
AFS, charge-offs		0
AFS allowance, ending balance	0	0	2,000,000
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Roll Forward]
HTM, allowance beginning balance	1,000,000	0
HTM, provision	(1,000,000)	1,000,000
HTM, charge-offs	0	0
HTM, allowance, ending balance	0	1,000,000	0
Leveraged Loans
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	72,000,000	73,000,000
Provision for credit losses	13,000,000	16,000,000
Charge-offs	(17,000,000)	(17,000,000)
Ending balance	68,000,000	72,000,000	73,000,000
Other Loans
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	3,000,000	4,000,000
Provision for credit losses	1,000,000	(1,000,000)
Charge-offs	0	0
Ending balance	4,000,000	3,000,000	4,000,000
Other Loans | Fund Finance
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	3,000,000
Ending balance	3,000,000	3,000,000
Other Loans | Total Other
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	1,000,000
Ending balance	1,000,000	1,000,000
Commercial Real Estate
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	60,000,000	19,000,000
Provision for credit losses	67,000,000	41,000,000
Charge-offs	(25,000,000)	0
Ending balance	102,000,000	60,000,000	19,000,000
Off-Balance Sheet Commitments
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	14,000,000	23,000,000
Provision for credit losses	(5,000,000)	(9,000,000)
Charge-offs	0	0
Ending balance	9,000,000	14,000,000	23,000,000
Total Credit Reserve
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	150,000,000	121,000,000
Provision for credit losses	75,000,000	46,000,000
Charge-offs	(42,000,000)	(17,000,000)
Ending balance	$ 183,000,000	$ 150,000,000	$ 121,000,000

Goodwill and Other Intangible_3

Goodwill and Other Intangible Assets - Narrative (Details) - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Finite-Lived Intangible Assets [Line Items]
Goodwill and intangible asset impairment	$ 0	$ 0	$ 0
Amortization of other intangible assets	$ 230,000,000	$ 239,000,000	$ 238,000,000
Client relationships | Minimum
Finite-Lived Intangible Assets [Line Items]
Useful life of intangible assets	5 years
Client relationships | Maximum
Finite-Lived Intangible Assets [Line Items]
Useful life of intangible assets	20 years
Technology | Minimum
Finite-Lived Intangible Assets [Line Items]
Useful life of intangible assets	3 years
Technology | Maximum
Finite-Lived Intangible Assets [Line Items]
Useful life of intangible assets	10 years
Core deposits | Minimum
Finite-Lived Intangible Assets [Line Items]
Useful life of intangible assets	16 years
Core deposits | Maximum
Finite-Lived Intangible Assets [Line Items]
Useful life of intangible assets	22 years

Goodwill and Other Intangible_4

Goodwill and Other Intangible Assets - Changes in the Carrying Amount of Goodwill (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Goodwill [Roll Forward]
Beginning balance	$ 7,611	$ 7,495
Acquisitions	189	44
Foreign currency translation	(109)	72
Ending balance	7,691	7,611
Investment Servicing
Goodwill [Roll Forward]
Beginning balance	7,346	7,232
Acquisitions	189	44
Foreign currency translation	(107)	70
Ending balance	7,428	7,346
Investment Management
Goodwill [Roll Forward]
Beginning balance	265	263
Acquisitions	0	0
Foreign currency translation	(2)	2
Ending balance	$ 263	$ 265

Goodwill and Other Intangible_5

Goodwill and Other Intangible Assets - Changes in the Carrying Amount of Other Intangible Assets (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Finite-lived Intangible Assets [Roll Forward]
Beginning balance	$ 1,320	$ 1,544
Acquisitions	20
Amortization	(230)	(239)	$ (238)
Foreign currency translation	(21)	15
Ending balance	1,089	1,320	1,544
Investment Servicing
Finite-lived Intangible Assets [Roll Forward]
Beginning balance	1,293	1,495
Acquisitions	7
Amortization	(216)	(217)
Foreign currency translation	(21)	15
Ending balance	1,063	1,293	1,495
Investment Management
Finite-lived Intangible Assets [Roll Forward]
Beginning balance	27	49
Acquisitions	13
Amortization	(14)	(22)
Foreign currency translation	0	0
Ending balance	$ 26	$ 27	$ 49

Goodwill and Other Intangible_6

Goodwill and Other Intangible Assets - Gross Carrying Amount, Accumulated Amortization and Net Carrying Amount of Other Intangible Assets (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 3,879	$ 3,938
Accumulated Amortization	(2,790)	(2,618)
Net Carrying Amount	1,089	1,320	$ 1,544
Client relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	2,706	2,761
Accumulated Amortization	(1,919)	(1,808)
Net Carrying Amount	787	953
Technology
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	401	402
Accumulated Amortization	(252)	(216)
Net Carrying Amount	149	186
Core deposits
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	677	690
Accumulated Amortization	(540)	(516)
Net Carrying Amount	137	174
Other
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	95	85
Accumulated Amortization	(79)	(78)
Net Carrying Amount	$ 16	$ 7

Goodwill and Other Intangible_7

Goodwill and Other Intangible Assets - Amortization Expense (Details) $ in Millions	Dec. 31, 2024 USD ($)
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
2025	$ 225
2026	202
2027	168
2028	122
2029	$ 64

Other Assets (Details)

Other Assets (Details) - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Other Assets [Abstract]
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Total	Total
Securities borrowed	$ 37,451,000,000	$ 23,131,000,000
Derivative instruments, net	11,183,000,000	5,307,000,000
Bank-owned life insurance	3,856,000,000	3,742,000,000
Investments in joint ventures and other unconsolidated entities	3,317,000,000	2,981,000,000
Collateral, net	3,216,000,000	2,983,000,000
Right-of-use assets	818,000,000	805,000,000
Prepaid expenses	738,000,000	598,000,000
Deferred tax assets, net of valuation allowance	701,000,000	1,034,000,000
Accounts receivable	504,000,000	611,000,000
Income taxes receivable	144,000,000	246,000,000
Receivable for securities settlement	57,000,000	1,082,000,000
Other	2,529,000,000	2,286,000,000
Total	64,514,000,000	44,806,000,000
Equity securities without readily determinable fair value, amount	341,000,000	183,000,000
Impairment	0
Advances to affiliate	$ 1,040,000,000	$ 1,150,000,000

Deposits (Details)

Deposits (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Loans and Leases Receivable Disclosure [Line Items]
Time deposits	$ 5,780	$ 5,800
Time deposits in amounts of $250,000 or more	5,770	5,790
Time deposit liability, uninsured, maturity, three months or less	1,070
Time deposit liability, uninsured, maturity, over three months through six months	2,410
Time deposit liability, uninsured, maturity, over 6 months through 12 months	2,290
Demand deposit overdrafts	1,980	2,270
Foreign
Loans and Leases Receivable Disclosure [Line Items]
Time deposits	$ 80	$ 60

Short-Term Borrowings - Narrati

Short-Term Borrowings - Narrative (Details)	Dec. 31, 2024 USD ($)	Dec. 31, 2024 CAD ($)	Dec. 31, 2023 USD ($)
Short-term Debt [Line Items]
Weighted-average interest rate as of year-end	5.03%	5.03%	1.52%
Average balance of securities purchased under agreement to resell and securities sold under agreement to repurchase	$ 191,260,000,000		$ 140,360,000,000
Maximum borrowing on line of credit	970,000,000	$ 1,400,000,000
Balance on line of credit	0		$ 0
Estimated Fair Value
Short-term Debt [Line Items]
Obligations to repurchase securities sold	4,361,000,000
Securities Sold | Estimated Fair Value
Short-term Debt [Line Items]
Obligations to repurchase securities sold	$ 4,360,000,000

Short-Term Borrowings - Outstan

Short-Term Borrowings - Outstanding and Weighted-Average Interest Rates of Short-Term Borrowings (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Short-term Debt [Line Items]
Weighted-average interest rate as of year-end	5.03%	1.52%
Securities Sold Under Repurchase Agreements
Short-term Debt [Line Items]
Balance as of December 31	$ 3,681	$ 1,867
Average outstanding during the year	$ 3,163	$ 3,904
Weighted-average interest rate as of year-end	5.62%	0.08%
Weighted-average interest rate during the year	4.93%	0.87%
Other
Short-term Debt [Line Items]
Balance as of December 31	$ 9,815	$ 3,500
Average outstanding during the year	$ 11,128	$ 849
Weighted-average interest rate as of year-end	4.77%	3.03%
Weighted-average interest rate during the year	5.19%	5.12%

Short-Term Borrowings - Overnig

Short-Term Borrowings - Overnight Maturity (Details) $ in Millions	Dec. 31, 2024 USD ($)
Estimated Fair Value
Short-term Debt [Line Items]
Total	$ 4,361
Term maturity | Estimated Fair Value
Short-term Debt [Line Items]
Total	3,500
Overnight maturity | Estimated Fair Value
Short-term Debt [Line Items]
Total	861
Securities Sold | Reported Amount
Short-term Debt [Line Items]
Total	4,463
Securities Sold | Estimated Fair Value
Short-term Debt [Line Items]
Total	4,360
Securities Sold | Term maturity | Reported Amount
Short-term Debt [Line Items]
Total	3,588
Securities Sold | Overnight maturity | Reported Amount
Short-term Debt [Line Items]
Total	875
Repurchase Agreements | Reported Amount
Short-term Debt [Line Items]
Total	3,681
Repurchase Agreements | Term maturity | Reported Amount
Short-term Debt [Line Items]
Total	3,505
Repurchase Agreements | Overnight maturity | Reported Amount
Short-term Debt [Line Items]
Total	$ 176

Long-Term Debt - Schedule of Lo

Long-Term Debt - Schedule of Long Term Debt (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Long-term finance leases and equipment financing	$ 67	$ 119
Total long-term debt	23,272	18,839
Fair Value Hedges
Debt Instrument [Line Items]
Decrease in carrying value of long-term debt	$ 220	184
Parent Company and Non-banking Subsidiaries | Senior notes | 3.55% Notes due 2025
Debt Instrument [Line Items]
Interest rate on debt	3.55%
Long-term debt	$ 1,285	1,265
Parent Company and Non-banking Subsidiaries | Senior notes | 5.272% Notes due 2026
Debt Instrument [Line Items]
Interest rate on debt	5.272%
Long-term debt	$ 1,203	1,211
Parent Company and Non-banking Subsidiaries | Senior notes | 4.330% Notes Due 2027
Debt Instrument [Line Items]
Interest rate on debt	4.33%
Long-term debt	$ 1,189	0
Parent Company and Non-banking Subsidiaries | Senior notes | 4.993% Notes Due 2027
Debt Instrument [Line Items]
Interest rate on debt	4.993%
Long-term debt	$ 993	0
Parent Company and Non-banking Subsidiaries | Senior notes | 2.400% notes due 2030
Debt Instrument [Line Items]
Interest rate on debt	2.40%
Long-term debt	$ 784	790
Parent Company and Non-banking Subsidiaries | Senior notes | 2.65% notes due 2026
Debt Instrument [Line Items]
Interest rate on debt	2.65%
Long-term debt	$ 728	719
Parent Company and Non-banking Subsidiaries | Senior notes | Floating Rate Notes Due 2026
Debt Instrument [Line Items]
Long-term debt	299	299
Parent Company and Non-banking Subsidiaries | Senior notes | Floating Rate Notes Due 2027
Debt Instrument [Line Items]
Long-term debt	$ 299	0
Parent Company and Non-banking Subsidiaries | Senior notes | 7.35% notes due 2026
Debt Instrument [Line Items]
Interest rate on debt	7.35%
Long-term debt	$ 150	150
Parent Company and Non-banking Subsidiaries | Senior notes | 3.300% Senior Notes Due 2024
Debt Instrument [Line Items]
Interest rate on debt	3.30%
Long-term debt	$ 0	977
Parent Company and Non-banking Subsidiaries | Fixed-to-floating rate senior notes | 5.104% Notes Due 2026
Debt Instrument [Line Items]
Interest rate on debt	5.104%
Long-term debt	$ 999	998
Parent Company and Non-banking Subsidiaries | Fixed-to-floating rate senior notes | 5.159% Notes Due 2034
Debt Instrument [Line Items]
Interest rate on debt	5.159%
Long-term debt	$ 995	995
Parent Company and Non-banking Subsidiaries | Fixed-to-floating rate senior notes | 4.530% Notes Due 2029
Debt Instrument [Line Items]
Interest rate on debt	4.53%
Long-term debt	$ 989	0
Parent Company and Non-banking Subsidiaries | Fixed-to-floating rate senior notes | 5.684% Notes Due 2029
Debt Instrument [Line Items]
Interest rate on debt	5.684%
Long-term debt	$ 986	995
Parent Company and Non-banking Subsidiaries | Fixed-to-floating rate senior notes | 4.675% Notes Due 2032
Debt Instrument [Line Items]
Interest rate on debt	4.675%
Long-term debt	$ 789	0
Parent Company and Non-banking Subsidiaries | Fixed-to-floating rate senior notes | 4.821% Notes Due 2034
Debt Instrument [Line Items]
Interest rate on debt	4.821%
Long-term debt	$ 702	731
Parent Company and Non-banking Subsidiaries | Fixed-to-floating rate senior notes | 4.164% notes due 2033
Debt Instrument [Line Items]
Interest rate on debt	4.164%
Long-term debt	$ 665	687
Parent Company and Non-banking Subsidiaries | Fixed-to-floating rate senior notes | 2.203% notes due 2028
Debt Instrument [Line Items]
Interest rate on debt	2.203%
Long-term debt	$ 619	605
Parent Company and Non-banking Subsidiaries | Fixed-to-floating rate senior notes | 4.141% notes due 2029
Debt Instrument [Line Items]
Interest rate on debt	4.141%
Long-term debt	$ 535	556
Parent Company and Non-banking Subsidiaries | Fixed-to-floating rate senior notes | 4.857% Notes due 2034
Debt Instrument [Line Items]
Interest rate on debt	4.857%
Long-term debt	$ 499	496
Parent Company and Non-banking Subsidiaries | Fixed-to-floating rate senior notes | 5.751% notes due 2026
Debt Instrument [Line Items]
Interest rate on debt	5.751%
Long-term debt	$ 498	497
Parent Company and Non-banking Subsidiaries | Fixed-to-floating rate senior notes | 3.152% notes due 2031
Debt Instrument [Line Items]
Interest rate on debt	3.152%
Long-term debt	$ 498	498
Parent Company and Non-banking Subsidiaries | Fixed-to-floating rate senior notes | 4.421% notes due 2033
Debt Instrument [Line Items]
Interest rate on debt	4.421%
Long-term debt	$ 498	497
Parent Company and Non-banking Subsidiaries | Fixed-to-floating rate senior notes | 1.684% notes due 2027
Debt Instrument [Line Items]
Interest rate on debt	1.684%
Long-term debt	$ 497	496
Parent Company and Non-banking Subsidiaries | Fixed-to-floating rate senior notes | 2.901% notes due 2026
Debt Instrument [Line Items]
Interest rate on debt	2.901%
Long-term debt	$ 497	485
Parent Company and Non-banking Subsidiaries | Fixed-to-floating rate senior notes | 5.82% notes due 2028
Debt Instrument [Line Items]
Interest rate on debt	5.82%
Long-term debt	$ 495	497
Parent Company and Non-banking Subsidiaries | Fixed-to-floating rate senior notes | 2.623% notes due 2023
Debt Instrument [Line Items]
Interest rate on debt	2.623%
Long-term debt	$ 465	476
Parent Company and Non-banking Subsidiaries | Fixed-to-floating rate senior notes | 1.746% notes due 2026
Debt Instrument [Line Items]
Interest rate on debt	1.746%
Long-term debt	$ 299	290
Parent Company and Non-banking Subsidiaries | Fixed-to-floating rate senior notes | 2.354% notes due 2025
Debt Instrument [Line Items]
Interest rate on debt	2.354%
Long-term debt	$ 0	972
Parent Company and Non-banking Subsidiaries | Senior subordinated notes | 2.200% notes due 2031
Debt Instrument [Line Items]
Interest rate on debt	2.20%
Long-term debt	$ 845	845
Parent Company and Non-banking Subsidiaries | Fixed-to-floating rate senior subordinated notes | 3.031% notes due 2034
Debt Instrument [Line Items]
Interest rate on debt	3.031%
Long-term debt	$ 523	528
Parent Company and Non-banking Subsidiaries | Fixed-to-floating rate senior subordinated notes | 6.123% Notes Due 2034
Debt Instrument [Line Items]
Interest rate on debt	6.123%
Long-term debt	$ 492	497
Parent Company and Non-banking Subsidiaries | Junior subordinated debentures | Floating-rate subordinated debentures due 2047
Debt Instrument [Line Items]
Long-term debt	500	500
Parent Company and Non-banking Subsidiaries | Junior subordinated debentures | Floating Rate Subordinated Debentures Due 2028
Debt Instrument [Line Items]
Long-term debt	100	100
State Street Bank
Debt Instrument [Line Items]
Long-term finance leases and equipment financing	$ 116	187
State Street Bank | Senior notes | 4.594% Senior Notes Due 2026
Debt Instrument [Line Items]
Interest rate on debt	4.594%
Long-term debt	$ 1,146	0
State Street Bank | Senior notes | 4.782% Senior Notes Due 2029
Debt Instrument [Line Items]
Interest rate on debt	4.782%
Long-term debt	$ 796	0
State Street Bank | Senior notes | Floating Rate Senior Notes Due 2026
Debt Instrument [Line Items]
Long-term debt	$ 299	$ 0

Long-Term Debt - Narrative (Det

Long-Term Debt - Narrative (Details) - USD ($)	Feb. 06, 2025	Jan. 07, 2025	Dec. 31, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Long-term finance leases and equipment financing			$ 67,000,000	$ 119,000,000
Finance lease liability			$ 79,000,000	$ 130,000,000
Finance Lease, Liability, Statement of Financial Position [Extensible Enumeration]			Long-term debt	Long-term debt
State Street Bank
Debt Instrument [Line Items]
Long-term finance leases and equipment financing			$ 116,000,000	$ 187,000,000
Parent Company and Non-banking Subsidiaries | 4.857% Notes due 2034 | Fixed-to-floating rate senior notes
Debt Instrument [Line Items]
Interest rate on debt			4.857%
Parent Company and Non-banking Subsidiaries | 4.857% Notes due 2034 | Fixed-to-floating rate senior notes | Subsequent Event
Debt Instrument [Line Items]
Debt redeemed		$ 500,000,000
Interest rate on debt		4.857%
Parent Company and Non-banking Subsidiaries | 1.746% notes due 2026 | Fixed-to-floating rate senior notes
Debt Instrument [Line Items]
Interest rate on debt			1.746%
Parent Company and Non-banking Subsidiaries | 1.746% notes due 2026 | Fixed-to-floating rate senior notes | Subsequent Event
Debt Instrument [Line Items]
Debt redeemed	$ 300,000,000
Interest rate on debt	1.746%

Derivative Financial Instrume_3

Derivative Financial Instruments - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Derivative [Line Items]
Cash flow hedge gain (loss) to be reclassified within twelve months	$ 136
Maximum length of time hedged in cash flow hedge	5 years
Fair value of derivative liabilities	$ 29,124	$ 19,602
Interest rate swap | Fair Value Hedges
Derivative [Line Items]
Notional amount of derivative instruments	31,120	$ 19,430
Credit swap agreements
Derivative [Line Items]
Fair value of derivative liabilities	7,410
Cash collateral provided for derivative instruments	5,660
Maximum additional amount of payments related to termination events	$ 1,750

Derivative Financial Instrume_4

Derivative Financial Instruments - Schedule of Outstanding Hedges: (Notional Amount) (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Derivatives not designated as hedging instruments | Interest rate contracts | Futures
Derivative Instruments, Gain (Loss) [Line Items]
Notional amount of derivative instruments	$ 47,222	$ 12,668
Derivatives not designated as hedging instruments | Foreign exchange contracts | Futures
Derivative Instruments, Gain (Loss) [Line Items]
Notional amount of derivative instruments	359	197
Derivatives not designated as hedging instruments | Foreign exchange contracts | Forward, swap and spot
Derivative Instruments, Gain (Loss) [Line Items]
Notional amount of derivative instruments	2,612,945	2,528,115
Derivatives not designated as hedging instruments | Foreign exchange contracts | Options purchased
Derivative Instruments, Gain (Loss) [Line Items]
Notional amount of derivative instruments	466	851
Derivatives not designated as hedging instruments | Foreign exchange contracts | Options written
Derivative Instruments, Gain (Loss) [Line Items]
Notional amount of derivative instruments	145	544
Derivatives not designated as hedging instruments | Other derivative contracts | Futures
Derivative Instruments, Gain (Loss) [Line Items]
Notional amount of derivative instruments	155	125
Derivatives not designated as hedging instruments | Other derivative contracts | Stable value contracts
Derivative Instruments, Gain (Loss) [Line Items]
Notional amount of derivative instruments	25,271	28,704
Derivatives not designated as hedging instruments | Other derivative contracts | Deferred value awards
Derivative Instruments, Gain (Loss) [Line Items]
Notional amount of derivative instruments	253	289
Derivatives designated as hedging instruments | Interest rate contracts | Swap agreements
Derivative Instruments, Gain (Loss) [Line Items]
Notional amount of derivative instruments	33,302	20,333
Derivatives designated as hedging instruments | Foreign exchange contracts | Forward and swap
Derivative Instruments, Gain (Loss) [Line Items]
Notional amount of derivative instruments	$ 10,260	$ 9,777

Derivative Financial Instrume_5

Derivative Financial Instruments - Schedule of the Fair Values of Derivative Financial Instruments (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	$ 29,468	$ 19,707
Fair value of derivative liabilities	$ 29,124	19,602
Derivative Liability, Statement of Financial Position [Extensible Enumeration]	Accrued expenses and other liabilities
Foreign exchange contracts
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	$ 29,439	19,694
Fair value of derivative liabilities	28,904	19,416
Other derivative contracts
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	1
Interest rate contracts
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	28	13
Fair value of derivative liabilities	1	4
Derivatives not designated as hedging instruments
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	29,117	19,498
Fair value of derivative liabilities	29,123	19,335
Derivatives not designated as hedging instruments | Foreign exchange contracts
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	29,116	19,498
Fair value of derivative liabilities	28,904	19,153
Derivatives not designated as hedging instruments | Other derivative contracts
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	1	0
Fair value of derivative liabilities	219	182
Derivatives designated as hedging instruments
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	351	209
Fair value of derivative liabilities	1	267
Derivatives designated as hedging instruments | Foreign exchange contracts
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	323	196
Fair value of derivative liabilities	0	263
Derivatives designated as hedging instruments | Interest rate contracts
Derivatives, Fair Value [Line Items]
Fair value of derivative assets	28	13
Fair value of derivative liabilities	$ 1	$ 4

Derivative Financial Instrume_6

Derivative Financial Instruments - Impact of Derivatives on Consolidated Statement of Income (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Derivative [Line Items]
Deferred compensation expense acceleration	$ 79
Derivatives not designated as hedging instruments
Derivative [Line Items]
Amount of gain (loss) on derivative recognized in income	956	$ 623	$ 833
Derivatives not designated as hedging instruments | Foreign exchange contracts | Foreign exchange trading services revenue
Derivative [Line Items]
Amount of gain (loss) on derivative recognized in income	862	803	938
Derivatives not designated as hedging instruments | Foreign exchange contracts | Interest expense
Derivative [Line Items]
Amount of gain (loss) on derivative recognized in income	274	(54)	(20)
Derivatives not designated as hedging instruments | Interest rate contracts | Foreign exchange trading services revenue
Derivative [Line Items]
Amount of gain (loss) on derivative recognized in income	21	(2)	3
Derivatives not designated as hedging instruments | Interest rate contracts | Other fee revenue
Derivative [Line Items]
Amount of gain (loss) on derivative recognized in income	0	0	1
Derivatives not designated as hedging instruments | Other derivative contracts | Other fee revenue
Derivative [Line Items]
Amount of gain (loss) on derivative recognized in income	(12)	(3)	0
Derivatives not designated as hedging instruments | Other derivative contracts | Compensation and employee benefits
Derivative [Line Items]
Amount of gain (loss) on derivative recognized in income	$ (189)	$ (121)	$ (89)

Derivative Financial Instrume_7

Derivative Financial Instruments - Schedule of Carrying Amount of Hedged Assets and Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Derivatives designated as hedging instruments | Long-term debt
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Carrying Amount of Assets	$ 15,951	$ 12,463
Active	(323)	(340)
Derivatives designated as hedging instruments | Total available-for-sale investment securities
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Carrying Amount of Assets	18,666	11,260
Active	(376)	(503)
Derivatives designated as hedging instruments | Total available-for-sale investment securities | Closed Portfolio
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Carrying Amount of Assets	3,320	685
Active	(26)	(6)
Last-of-layer, amount	1,820	400
Derivatives not designated as hedging instruments | Long-term debt
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Carrying Amount of Assets	103	156
Derivatives not designated as hedging instruments | Total available-for-sale investment securities
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Carrying Amount of Assets	$ 1	$ 3

Derivative Financial Instrume_8

Derivative Financial Instruments - Impact on Derivatives and Hedged Items on Consolidated Statement of Income (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Amount of Gain (Loss) on Derivative Recognized in Consolidated Statement of Income	$ (17)	$ 38	$ (484)
Amount of Gain (Loss) on Hedged Item Recognized in Consolidated Statement of Income	17	(38)	484
Net unrealized losses on AFS investment securities designated in fair value hedges recognized in OCI	93	122
Total available-for-sale investment securities | Net interest income | Interest rate contracts
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Amount of Gain (Loss) on Derivative Recognized in Consolidated Statement of Income	(55)	(164)	676
Amount of Gain (Loss) on Hedged Item Recognized in Consolidated Statement of Income	55	164	(676)
Long-term debt | Net interest income | Interest rate contracts
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Amount of Gain (Loss) on Derivative Recognized in Consolidated Statement of Income	17	202	(1,160)
Amount of Gain (Loss) on Hedged Item Recognized in Consolidated Statement of Income	(17)	(202)	1,160
Available-for-sale securities | Other fee revenue | Interest rate contracts
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Amount of Gain (Loss) on Derivative Recognized in Consolidated Statement of Income	21	0	0
Amount of Gain (Loss) on Hedged Item Recognized in Consolidated Statement of Income	$ (21)	$ 0	$ 0

Derivative Financial Instrume_9

Derivative Financial Instruments - Schedule of Differences Between the Gains (Losses) on the Derivative and the Gains (Losses) on the Hedged Item (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Derivative [Line Items]
Gain (loss) on derivative recognized in OCI, cash flow hedge	$ 53	$ 105	$ (442)
Gain (loss) on derivative recognized in OCI, net investment hedge	540	(89)	291
Amount of Gain (Loss) Recognized in Other Comprehensive Income on Derivative	593	16	(151)
Gain (loss) on hedges reclassified to income, cash flow hedge	54	(208)	49
Gain (loss) on hedges reclassified to income, net investment hedge	0	0	0
Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Income into Income	$ 54	(208)	49
Maximum maturity date of the underlying hedged items	5 years
Foreign exchange contracts
Derivative [Line Items]
Gain (loss) on derivative recognized in OCI, cash flow hedge	$ 59	91	156
Gain (loss) on derivative recognized in OCI, net investment hedge	540	(89)	291
Foreign exchange contracts | Net interest revenue
Derivative [Line Items]
Gain (loss) on hedges reclassified to income, cash flow hedge	254	2	92
Foreign exchange contracts | Gains (Losses) related to investment securities, net
Derivative [Line Items]
Gain (loss) on hedges reclassified to income, net investment hedge	0	0	0
Interest rate contracts
Derivative [Line Items]
Gain (loss) on derivative recognized in OCI, cash flow hedge	(6)	14	(598)
Interest rate contracts | Net interest revenue
Derivative [Line Items]
Gain (loss) on hedges reclassified to income, cash flow hedge	$ (200)	$ (210)	$ (43)

Offsetting Arrangements - Narra

Offsetting Arrangements - Narrative (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Offsetting [Abstract]
Fair Value of securities received as collateral that can be resold or repledged	$ 11,410	$ 10,670
Fair Value of securities received as collateral that have been resold or repledged	$ 2,760	$ 6,410

Offsetting Arrangements - Asset

Offsetting Arrangements - Assets With Offsetting Arrangements (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Offsetting Assets [Line Items]
Derivatives, Gross Amounts of Recognized Assets	$ 29,468	$ 19,707
Derivatives, Gross Amounts Offset in Statement of Condition	(18,285)	(14,400)
Derivatives, Net Amounts of Assets Presented in Statement of Condition	11,183	5,307
Derivatives, Net Amount	9,986	4,238
Derivatives, Cash collateral and securities netting, cash offset	(1,860)	(3,904)
Derivatives, Cash collateral and securities netting, Cash and Securities Received	(1,197)	(1,069)
Derivatives, Cash collateral and securities netting, Net Amount	(3,057)	(4,973)
Resale agreements and securities borrowing, Gross Amounts of Recognized Assets	276,151	230,384
Resale agreements and securities borrowing, Gross Amounts Offset in Statement of Condition	(232,021)	(200,561)
Resale agreements and securities borrowing, Net Amounts of Assets Presented in Statement of Condition	44,130	29,823
Resale agreements and securities borrowing, Cash and Securities Received	(42,589)	(28,016)
Resale agreements and securities borrowing, Net Amount	1,541	1,807
Total derivatives and other financial instruments, Gross Amounts of Recognized Assets	305,619	250,091
Total derivatives and other financial instruments, Gross Amounts Offset in Statement of Condition	(250,306)	(214,961)
Total derivatives and other financial instruments, Net Amounts of Assets Presented in Statement of Condition	55,313	35,130
Total derivatives and other financial instruments, Cash and Securities Received	(43,786)	(29,085)
Total derivatives and other financial instruments, Net Amount	11,527	6,045
Securities purchased under resale agreements	6,679	6,692
Cash collateral provided for securities borrowing	37,450	23,130
Foreign exchange contracts
Offsetting Assets [Line Items]
Derivatives, Gross Amounts of Recognized Assets	29,439	19,694
Derivatives, Gross Amounts Offset in Statement of Condition	(16,424)	(10,496)
Derivatives, Net Amounts of Assets Presented in Statement of Condition	13,015	9,198
Derivatives, Net Amount	13,015	9,198
Interest rate contracts
Offsetting Assets [Line Items]
Derivatives, Gross Amounts of Recognized Assets	28	13
Derivatives, Gross Amounts Offset in Statement of Condition	(1)	0
Derivatives, Net Amounts of Assets Presented in Statement of Condition	27	13
Derivatives, Net Amount	27	$ 13
Other derivative contracts
Offsetting Assets [Line Items]
Derivatives, Gross Amounts of Recognized Assets	1
Derivatives, Gross Amounts Offset in Statement of Condition	0
Derivatives, Net Amounts of Assets Presented in Statement of Condition	1
Derivatives, Net Amount	$ 1

Offsetting Arrangements - Liabi

Offsetting Arrangements - Liabilities With Offsetting Arrangements (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Offsetting Liabilities [Line Items]
Derivatives, Gross Amounts of Recognized Liabilities	$ 29,124	$ 19,602
Derivatives, Gross Amounts Offset in Statement of Condition	(22,528)	(11,909)
Derivatives, Net Amounts of Liabilities Presented in Statement of Condition	6,596	7,693
Derivative, Net Amount	5,024	7,060
Derivative liability, collateral, cash offset	(6,103)	(1,413)
Derivatives, Cash and collateral securities netting, Cash and Securities Provided	(1,572)	(633)
Derivatives, Cash and collateral securities netting, Net	(7,675)	(2,046)
Resale agreements and securities lending, Gross Amounts of Recognized Liabilities	250,032	214,362
Resale agreements and securities lending, Gross Amounts Offset in Statement of Condition	(232,021)	(200,561)
Resale agreements and securities lending, Net Amounts of Liabilities Presented in Statement of Condition	18,011	13,801
Resale agreements and securities lending, Cash and Securities Provided	(17,835)	(13,306)
Resale agreements and securities lending, Net Amount	176	495
Total derivatives and other financial instruments, Gross Amounts of Recognized Liabilities	279,156	233,964
Total derivatives and other financial instruments, Gross Amounts Offset in Statement of Condition	(254,549)	(212,470)
Total derivatives and other financial instruments, Net Amounts of Liabilities Presented in Statement of Condition	24,607	21,494
Total derivatives and other financial instruments, Cash and Securities Provided	(19,407)	(13,939)
Total derivatives and other financial instruments, Net Amount	5,200	7,555
Cash collateral received in connection to securities finance activities	14,330	11,930
Foreign exchange contracts
Offsetting Liabilities [Line Items]
Derivatives, Gross Amounts of Recognized Liabilities	28,904	19,416
Derivatives, Gross Amounts Offset in Statement of Condition	(16,424)	(10,496)
Derivatives, Net Amounts of Liabilities Presented in Statement of Condition	12,480	8,920
Derivative, Net Amount	12,480	8,920
Interest rate contracts
Offsetting Liabilities [Line Items]
Derivatives, Gross Amounts of Recognized Liabilities	1	4
Derivatives, Gross Amounts Offset in Statement of Condition	(1)	0
Derivatives, Net Amounts of Liabilities Presented in Statement of Condition	0	4
Derivative, Net Amount	0	4
Other derivative contracts
Offsetting Liabilities [Line Items]
Derivatives, Gross Amounts of Recognized Liabilities	219	182
Derivatives, Gross Amounts Offset in Statement of Condition	0	0
Derivatives, Net Amounts of Liabilities Presented in Statement of Condition	219	182
Derivative, Net Amount	$ 219	$ 182

Offsetting Arrangements - Repo,

Offsetting Arrangements - Repo, Sec Lending Transactions Maturity by Category (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase agreements	$ 227,222	$ 197,757
Securities lending transactions	22,810	16,605
Gross amount of recognized liabilities for repurchase agreements and securities lending	250,032	214,362
U.S. Treasury and agency securities
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase agreements	227,222	197,757
Securities lending transactions	152	6
Non-US sovereign debt
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase agreements	0	0
Corporate debt securities
Assets Sold under Agreements to Repurchase [Line Items]
Securities lending transactions	193	281
Equity securities
Assets Sold under Agreements to Repurchase [Line Items]
Securities lending transactions	15,713	9,452
Other
Assets Sold under Agreements to Repurchase [Line Items]
Securities lending transactions	6,752	6,866
Overnight and Continuous
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase agreements	223,095	196,212
Securities lending transactions	18,278	14,278
Gross amount of recognized liabilities for repurchase agreements and securities lending	241,373	210,490
Overnight and Continuous | U.S. Treasury and agency securities
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase agreements	223,095	196,212
Securities lending transactions	152	6
Overnight and Continuous | Non-US sovereign debt
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase agreements	0	0
Overnight and Continuous | Corporate debt securities
Assets Sold under Agreements to Repurchase [Line Items]
Securities lending transactions	193	278
Overnight and Continuous | Equity securities
Assets Sold under Agreements to Repurchase [Line Items]
Securities lending transactions	11,181	7,128
Overnight and Continuous | Other
Assets Sold under Agreements to Repurchase [Line Items]
Securities lending transactions	6,752	6,866
Up to 30 Days
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase agreements	350	0
Securities lending transactions	13	20
Gross amount of recognized liabilities for repurchase agreements and securities lending	363	20
Up to 30 Days | U.S. Treasury and agency securities
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase agreements	350	0
Securities lending transactions	0	0
Up to 30 Days | Non-US sovereign debt
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase agreements	0	0
Up to 30 Days | Corporate debt securities
Assets Sold under Agreements to Repurchase [Line Items]
Securities lending transactions	0	0
Up to 30 Days | Equity securities
Assets Sold under Agreements to Repurchase [Line Items]
Securities lending transactions	13	20
Up to 30 Days | Other
Assets Sold under Agreements to Repurchase [Line Items]
Securities lending transactions	0	0
30-90 Days
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase agreements	1,277	185
Securities lending transactions	0	16
Gross amount of recognized liabilities for repurchase agreements and securities lending	1,277	201
30-90 Days | U.S. Treasury and agency securities
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase agreements	1,277	185
Securities lending transactions	0	0
30-90 Days | Non-US sovereign debt
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase agreements	0	0
30-90 Days | Corporate debt securities
Assets Sold under Agreements to Repurchase [Line Items]
Securities lending transactions	0	3
30-90 Days | Equity securities
Assets Sold under Agreements to Repurchase [Line Items]
Securities lending transactions	0	13
30-90 Days | Other
Assets Sold under Agreements to Repurchase [Line Items]
Securities lending transactions	0	0
Greater than 90 Days
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase agreements	2,500	1,360
Securities lending transactions	4,519	2,291
Gross amount of recognized liabilities for repurchase agreements and securities lending	7,019	3,651
Greater than 90 Days | U.S. Treasury and agency securities
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase agreements	2,500	1,360
Securities lending transactions	0	0
Greater than 90 Days | Non-US sovereign debt
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase agreements	0	0
Greater than 90 Days | Corporate debt securities
Assets Sold under Agreements to Repurchase [Line Items]
Securities lending transactions	0	0
Greater than 90 Days | Equity securities
Assets Sold under Agreements to Repurchase [Line Items]
Securities lending transactions	4,519	2,291
Greater than 90 Days | Other
Assets Sold under Agreements to Repurchase [Line Items]
Securities lending transactions	$ 0	$ 0

Commitments and Guarantees - Co

Commitments and Guarantees - Contractual Amounts of Credit-Related Off-Balance Sheet Financial Instruments (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Commitments and Contingencies Disclosure [Abstract]
Unfunded credit facilities	$ 34,191	$ 34,197
Indemnified securities financing	310,814	279,916
Standby letters of credit	$ 908	$ 1,510

Commitments and Guarantees - Sc

Commitments and Guarantees - Schedule of Repurchase Agreements (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Commitments and Contingencies Disclosure [Abstract]
Fair value of indemnified securities financing	$ 310,814	$ 279,916
Fair value of cash and securities held by us, as agent, as collateral for indemnified securities financing	325,611	293,855
Fair value of collateral for indemnified securities financing invested in indemnified repurchase agreements	63,655	59,028
Fair value of cash and securities held by us or our agents as collateral for investments in indemnified repurchase agreements	$ 68,507	$ 63,105

Commitments and Guarantees - Na

Commitments and Guarantees - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Commitments and Contingencies Disclosure [Abstract]
Unfunded commitments to extend credit, short term	75%
Term of unfunded commitment	1 year
Cash collateral provided for securities lending	$ 37,450	$ 23,130
Cash collateral received in connection to securities finance activities	$ 14,330	$ 11,930

Contingencies (Details)

Contingencies (Details) $ in Thousands	1 Months Ended
	Nov. 30, 2024 plaintiff defendant	Jun. 30, 2024 USD ($)	Aug. 31, 2021 plaintiff	May 31, 2021 plaintiff	Dec. 31, 2024 USD ($)
Loss Contingencies [Line Items]
Accrual of loss contingency | $					$ 15,000
Estimate of possible loss | $					$ 30,000
Gomes v State Street Corp.
Loss Contingencies [Line Items]
Plaintiffs | plaintiff				8
Edmar Financial Company, LLC v. Currenex, Inc.
Loss Contingencies [Line Items]
Plaintiffs | plaintiff			2
U.S. Department of Treasury’s Office of Foreign Assets Control (OFAC)
Loss Contingencies [Line Items]
Payments for settlements | $		$ 7,450
State of Texas et al v. Blackrock, Inc. et al
Loss Contingencies [Line Items]
Plaintiffs | plaintiff	11
Defendants | defendant	3

Variable Interest Entities - Na

Variable Interest Entities - Narrative (Details) - USD ($)	Dec. 31, 2024	Dec. 31, 2023
Variable Interest Entity [Line Items]
Assets	$ 353,240,000,000	$ 297,258,000,000
Liabilities	327,914,000,000	273,459,000,000
Contingent Commitment for Tax Credit Investments
Variable Interest Entity [Line Items]
Other commitment	42,000,000
Low Income Housing Tax Credit
Variable Interest Entity [Line Items]
Investment owned, cost	705,000,000
Production Tax Credit
Variable Interest Entity [Line Items]
Investment owned, cost	291,000,000
VIE - primary beneficiary
Variable Interest Entity [Line Items]
Assets	0	0
Liabilities	0	0
VIE - not primary beneficiary
Variable Interest Entity [Line Items]
Potential maximum loss exposure of unconsolidated funds	19,000,000	18,000,000
VIE - not primary beneficiary | Low Income Housing Production and Investment Tax Credit Entities
Variable Interest Entity [Line Items]
Potential maximum loss exposure of unconsolidated funds	1,100,000,000	$ 1,330,000,000
Deferred contribution payments	$ 110,000,000

Variable Interest Entities - Ta

Variable Interest Entities - Tax Credits (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Variable Interest Entity [Line Items]
Investment Program, Proportional Amortization Method, Elected, Income Tax Credit and Other Income Tax Benefit, after Amortization, Statement of Cash Flows [Extensible Enumeration]	Income tax expense
Investment Program, Proportional Amortization Method, Applied, Amortization Expense, Statement of Income or Comprehensive Income [Extensible Enumeration]	Income tax expense
Investment Program, Proportional Amortization Method, Elected, Income Tax Credit and Other Income Tax Benefit, after Amortization, Statement of Cash Flows [Extensible Enumeration]	Income tax expense
Income recorded in total revenue	$ 13,000	$ 11,945	$ 12,148
VIE - not primary beneficiary
Variable Interest Entity [Line Items]
Income recorded in total revenue	29	26
Tax credits and benefits recognized in income tax expense	256	239
Proportional amortization recognized in income tax expense	(207)	(182)
Total income tax expense (benefit)	49	57
Net benefit attributable to tax-advantaged investments included in the consolidated statement of income for which proportional amortization has been elected	$ 78	$ 83

Shareholders' Equity - Schedule

Shareholders' Equity - Schedule of Preferred Stock (Details) - USD ($) $ / shares in Units, $ in Millions			1 Months Ended
	Jul. 24, 2024	Jan. 31, 2024	Jul. 31, 2024	Jan. 31, 2024	Apr. 30, 2016	Dec. 31, 2024	Dec. 31, 2023
Series I Preferred Stock
Class of Stock [Line Items]
Shares issued (in shares)		1,500,000
Ownership Interest Per Depositary Share				1%
Liquidation preference per share (USD per share)		$ 100,000		$ 100,000
Per annum dividend rate				6.70%
Per annum dividend rate, basis spread on variable rate				2.613%
Preferred stock						$ 1,481	$ 0
Reset period				5 years
Series I Preferred Stock, Depository Share
Class of Stock [Line Items]
Shares issued (in shares)				1,500,000
Liquidation preference per share (USD per share)		$ 1,000		$ 1,000
Depositary Shares, each representing a 1/4,000th ownership interest in a share of Fixed-to-Floating Rate Non-Cumulative Perpetual Preferred Stock, Series G, without par value per share
Class of Stock [Line Items]
Shares issued (in shares)					20,000,000
Liquidation preference per share (USD per share)					$ 25
Series G Preferred Stock
Class of Stock [Line Items]
Ownership Interest Per Depositary Share					0.025%
Liquidation preference per share (USD per share)					$ 100,000
Per annum dividend rate					5.35%
Preferred stock						493	493
Series J Preferred Stock, Depository Share
Class of Stock [Line Items]
Shares issued (in shares)			850,000
Liquidation preference per share (USD per share)	$ 1,000		$ 1,000
Series J Preferred Stock
Class of Stock [Line Items]
Shares issued (in shares)	850,000
Ownership Interest Per Depositary Share			1%
Liquidation preference per share (USD per share)	$ 100,000		$ 100,000
Per annum dividend rate			6.70%
Per annum dividend rate, basis spread on variable rate			2.628%
Preferred stock						$ 842	$ 0
Reset period			5 years

Shareholders' Equity - Narrativ

Shareholders' Equity - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions				1 Months Ended		12 Months Ended
	Feb. 06, 2025	Jul. 24, 2024	Jan. 31, 2024	Jul. 31, 2024	Jan. 31, 2024	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Sep. 16, 2024	Mar. 15, 2024	Jan. 19, 2024
Accumulated Other Comprehensive Income (Loss) [Line Items]
Proceeds from issuance of preferred stock, net of issuance costs						$ 2,323	$ 0	$ 0
Preferred stock cash dividend						$ 185	122	$ 112
2023 Share Repurchase Program
Accumulated Other Comprehensive Income (Loss) [Line Items]
Amount of common stock authorized for repurchase							$ 4,500
Shares acquired (in shares)						0	49,200,000
Total acquired						$ 0	$ 3,800
2024 Share Repurchase Program
Accumulated Other Comprehensive Income (Loss) [Line Items]
Amount of common stock authorized for repurchase											$ 5,000
Shares acquired (in shares)						15,100,000	0
Total acquired						$ 1,300	$ 0
Series I Preferred Stock
Accumulated Other Comprehensive Income (Loss) [Line Items]
Shares issued (in shares)			1,500,000
Ownership Interest Per Depositary Share					1%
Liquidation preference per share (USD per share)			$ 100,000		$ 100,000
Proceeds from issuance of preferred stock, net of issuance costs			$ 1,500
Per annum dividend rate					6.70%
Preferred stock, shares outstanding (in shares)						15,000
Preferred dividends declared (USD per share)						$ 5,863
Preferred stock cash dividend						$ 88
Series I Preferred Stock, Depository Share
Accumulated Other Comprehensive Income (Loss) [Line Items]
Shares issued (in shares)					1,500,000
Liquidation preference per share (USD per share)			$ 1,000		$ 1,000
Preferred dividends declared (USD per share)						$ 58.63
Series D Preferred Stock
Accumulated Other Comprehensive Income (Loss) [Line Items]
Liquidation preference per share (USD per share)										$ 100,000
Redemption price										$ 1,000
Preferred stock, shares outstanding (in shares)						7,500				7,500
Preferred dividends declared (USD per share)						$ 1,475	$ 5,900
Preferred stock cash dividend						$ 11	$ 44
Series D Preferred Stock, Depository Share
Accumulated Other Comprehensive Income (Loss) [Line Items]
Liquidation preference per share (USD per share)										$ 25
Preferred stock, shares outstanding (in shares)										30,000,000
Preferred dividends declared (USD per share)						$ 0.37	$ 1.48
Series F Preferred Stock
Accumulated Other Comprehensive Income (Loss) [Line Items]
Liquidation preference per share (USD per share)										$ 100,000
Preferred stock, shares outstanding (in shares)						2,500				2,500
Preferred dividends declared (USD per share)						$ 2,336	$ 8,935
Preferred stock cash dividend						$ 6	$ 23
Series F Preferred Stock, Depository Share
Accumulated Other Comprehensive Income (Loss) [Line Items]
Liquidation preference per share (USD per share)										$ 1,000
Preferred stock, shares outstanding (in shares)										250,000
Preferred dividends declared (USD per share)						$ 23.36	$ 89.35
Series J Preferred Stock
Accumulated Other Comprehensive Income (Loss) [Line Items]
Shares issued (in shares)		850,000
Ownership Interest Per Depositary Share				1%
Liquidation preference per share (USD per share)		$ 100,000		$ 100,000
Proceeds from issuance of preferred stock, net of issuance costs		$ 842
Per annum dividend rate				6.70%
Preferred stock, shares outstanding (in shares)						8,500
Preferred dividends declared (USD per share)						$ 2,643
Preferred stock cash dividend						$ 22
Series J Preferred Stock, Depository Share
Accumulated Other Comprehensive Income (Loss) [Line Items]
Shares issued (in shares)				850,000
Liquidation preference per share (USD per share)		$ 1,000		$ 1,000
Preferred dividends declared (USD per share)						$ 26.43
Series H Preferred Stock
Accumulated Other Comprehensive Income (Loss) [Line Items]
Liquidation preference per share (USD per share)									$ 100,000
Redemption price									$ 500
Preferred stock, shares outstanding (in shares)						5,000			5,000
Preferred dividends declared (USD per share)						$ 6,251	$ 5,625
Preferred stock cash dividend						$ 31	$ 28
Series H Preferred Stock, Depository Share
Accumulated Other Comprehensive Income (Loss) [Line Items]
Liquidation preference per share (USD per share)									$ 1,000
Preferred stock, shares outstanding (in shares)									500,000
Preferred dividends declared (USD per share)						$ 62.51	$ 56.25
Series K Preferred Stock | Subsequent Event
Accumulated Other Comprehensive Income (Loss) [Line Items]
Shares issued (in shares)	750,000
Ownership Interest Per Depositary Share	1%
Liquidation preference per share (USD per share)	$ 100,000
Proceeds from issuance of preferred stock, net of issuance costs	$ 743
Per annum dividend rate	6.45%
Series K Preferred Stock, Depository Share | Subsequent Event
Accumulated Other Comprehensive Income (Loss) [Line Items]
Liquidation preference per share (USD per share)	$ 1,000

Shareholders' Equity - Schedu_2

Shareholders' Equity - Schedule of Dividends Declared (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Dividends Payable [Line Items]
Preferred stock cash dividend	$ 185	$ 122	$ 112
Series D Preferred Stock
Dividends Payable [Line Items]
Preferred dividends declared (USD per share)	$ 1,475	$ 5,900
Preferred stock cash dividend	$ 11	$ 44
Series D Preferred Stock, Depository Share
Dividends Payable [Line Items]
Preferred dividends declared (USD per share)	$ 0.37	$ 1.48
Series F Preferred Stock
Dividends Payable [Line Items]
Preferred dividends declared (USD per share)	$ 2,336	$ 8,935
Preferred stock cash dividend	$ 6	$ 23
Series F Preferred Stock, Depository Share
Dividends Payable [Line Items]
Preferred dividends declared (USD per share)	$ 23.36	$ 89.35
Series G Preferred Stock
Dividends Payable [Line Items]
Preferred dividends declared (USD per share)	$ 5,350	$ 5,350
Preferred stock cash dividend	$ 27	$ 27
Depositary Shares, each representing a 1/4,000th ownership interest in a share of Fixed-to-Floating Rate Non-Cumulative Perpetual Preferred Stock, Series G, without par value per share
Dividends Payable [Line Items]
Preferred dividends declared (USD per share)	$ 1.34	$ 1.34
Series H Preferred Stock
Dividends Payable [Line Items]
Preferred dividends declared (USD per share)	$ 6,251	$ 5,625
Preferred stock cash dividend	$ 31	$ 28
Series H Preferred Stock, Depository Share
Dividends Payable [Line Items]
Preferred dividends declared (USD per share)	$ 62.51	$ 56.25
Series I Preferred Stock
Dividends Payable [Line Items]
Preferred dividends declared (USD per share)	$ 5,863
Preferred stock cash dividend	$ 88
Series I Preferred Stock, Depository Share
Dividends Payable [Line Items]
Preferred dividends declared (USD per share)	$ 58.63
Series J Preferred Stock
Dividends Payable [Line Items]
Preferred dividends declared (USD per share)	$ 2,643
Preferred stock cash dividend	$ 22
Series J Preferred Stock, Depository Share
Dividends Payable [Line Items]
Preferred dividends declared (USD per share)	$ 26.43

Shareholders' Equity - Schedu_3

Shareholders' Equity - Schedule of Common Stock (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Equity, Class of Treasury Stock [Line Items]
Cash dividends declared (in USD per share)	$ 2.90	$ 2.64	$ 2.40
Total (In millions)	$ 859	$ 837	$ 871
2024 Share Repurchase Program
Equity, Class of Treasury Stock [Line Items]
Shares acquired (in shares)	15.1	0
Average Cost per Share (USD per share)	$ 85.89	$ 0
Total acquired	$ 1,300	$ 0
2023 Share Repurchase Program
Equity, Class of Treasury Stock [Line Items]
Shares acquired (in shares)	0	49.2
Average Cost per Share (USD per share)	$ 0	$ 77.22
Total acquired	$ 0	$ 3,800

Shareholders' Equity - Accumula

Shareholders' Equity - Accumulated Other Comprehensive Income by Component (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	$ 23,799	$ 25,191	$ 27,363
Other comprehensive income (loss) before reclassifications	(160)	775	(2,700)
Increase (decrease) due to amounts reclassified from accumulated other comprehensive income	414	582	122
Other comprehensive income (loss)	254	1,357	(2,578)
Ending balance	25,326	23,799	25,191
Unrecognized gain (loss) in AOCI	(374)	(530)	(749)
Net Unrealized Gains (Losses) on Cash Flow Hedges
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(131)	(359)	(2)
Other comprehensive income (loss) before reclassifications	39	75	(321)
Increase (decrease) due to amounts reclassified from accumulated other comprehensive income	(40)	153	(36)
Other comprehensive income (loss)	(1)	228	(357)
Ending balance	(132)	(131)	(359)
Net Unrealized Gains (Losses) on Investment Securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(947)	(1,817)	(50)
Other comprehensive income (loss) before reclassifications	15	442	(1,937)
Increase (decrease) due to amounts reclassified from accumulated other comprehensive income	452	428	170
Other comprehensive income (loss)	467	870	(1,767)
Ending balance	(480)	(947)	(1,817)
Net Unrealized Losses on Retirement Plans
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(145)	(143)	(130)
Other comprehensive income (loss) before reclassifications	14	(3)	(1)
Increase (decrease) due to amounts reclassified from accumulated other comprehensive income	2	1	(12)
Other comprehensive income (loss)	16	(2)	(13)
Ending balance	(129)	(145)	(143)
Foreign Currency Translation
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(1,400)	(1,751)	(1,019)
Other comprehensive income (loss) before reclassifications	(768)	351	(732)
Increase (decrease) due to amounts reclassified from accumulated other comprehensive income	0	0	0
Other comprehensive income (loss)	(768)	351	(732)
Ending balance	(2,168)	(1,400)	(1,751)
Net Unrealized Gains (Losses) on Hedges of Net Investments in Non-U.S. Subsidiaries
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	269	359	68
Other comprehensive income (loss) before reclassifications	540	(90)	291
Increase (decrease) due to amounts reclassified from accumulated other comprehensive income	0	0	0
Other comprehensive income (loss)	540	(90)	291
Ending balance	809	269	359
Accumulated Other Comprehensive Income (Loss)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(2,354)	(3,711)	(1,133)
Other comprehensive income (loss)	254	1,357	(2,578)
Ending balance	$ (2,100)	$ (2,354)	$ (3,711)

Shareholders' Equity - Adjustme

Shareholders' Equity - Adjustments to Accumulated Other Comprehensive Income (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Class of Stock [Line Items]
Gains (losses) from sales of available-for-sale securities, net	$ (79)	$ (294)	$ (2)
Net interest income	2,923	2,759	2,544
Compensation and employee benefits expenses	4,697	4,744	4,428
Net income	2,687	1,944	2,774
Net realized gains from sales of available-for-sale securities, tax	21	81	1
Amortization of net unrealized gain (loss), before adjustment, tax	137	81	96
Net realized gains from sales of available-for-sale securities, tax	(14)	55	(13)
Other comprehensive (income) loss, actuarial losses, tax	0	0	(1)
Amounts Reclassified into Earnings
Class of Stock [Line Items]
Net income	414	582	122
Amounts Reclassified into Earnings | Net Unrealized Gains (Losses) on Investment Securities
Class of Stock [Line Items]
Gains (losses) from sales of available-for-sale securities, net	59	213	1
Amounts Reclassified into Earnings | AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Transferred to Held-To-Maturity, Parent
Class of Stock [Line Items]
Net interest income	393	215	169
Amounts Reclassified into Earnings | Net Unrealized Gains (Losses) on Cash Flow Hedges
Class of Stock [Line Items]
Net interest income	(40)	153	(36)
Amounts Reclassified into Earnings | Amortization of Actuarial Losses
Class of Stock [Line Items]
Compensation and employee benefits expenses	$ 2	$ 1	$ (12)

Regulatory Capital (Details)

Regulatory Capital (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Retained earnings	$ 29,582	$ 27,957
Capital ratio: required common equity tier 1 capital	8%	8%
Capital ratio: required tier 1 capital	0.095	0.095
Capital ratio: required total capital	0.115	0.115
Capital ratio: required total capital	0.040	0.040
Leverage ratio minimum	0.05
Capital conservation buffer, capital conserved, minimum	0.025
Stress capital buffer, minimum	2.50%
Banking regulation, global systemically important bank (G-SIB) surcharge	0.010
Countercyclical capital buffer	0
Basel III Advanced Approaches
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Common stock and related surplus	$ 11,226	$ 11,245
Retained earnings	29,582	27,957
Accumulated other comprehensive income (loss)	(2,100)	(2,354)
Treasury stock, at cost		(15,025)
Total	22,510	21,823
Goodwill and other intangible assets, net of associated deferred tax liabilities	(8,320)	(8,470)
Other adjustments	(391)	(382)
Common equity tier 1 capital	13,799	12,971
Preferred stock	2,816	1,976
Tier 1 capital	16,615	14,947
Qualifying subordinated long-term debt	1,861	1,870
Adjusted allowance for credit losses	0	0
Total capital	18,476	16,817
Credit risk	63,252	61,210
Operational risk	49,350	43,768
Market risk	2,000	2,475
Total risk-weighted assets	114,602	107,453
Adjusted quarterly average assets	$ 318,470	$ 269,807
Common equity tier 1 capital	12%	12.10%
Tier 1 capital	0.145	0.139
Total capital	0.161	0.157
Tier 1 leverage	0.052	0.055
Basel III Standardized Approach
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Common stock and related surplus	$ 11,226	$ 11,245
Retained earnings	29,582	27,957
Accumulated other comprehensive income (loss)	(2,100)	(2,354)
Total	22,510	21,823
Goodwill and other intangible assets, net of associated deferred tax liabilities	(8,320)	(8,470)
Other adjustments	(391)	(382)
Common equity tier 1 capital	13,799	12,971
Preferred stock	2,816	1,976
Tier 1 capital	16,615	14,947
Qualifying subordinated long-term debt	1,861	1,870
Adjusted allowance for credit losses	183	150
Total capital	18,659	16,967
Credit risk	124,281	109,228
Market risk	2,000	2,475
Total risk-weighted assets	126,281	111,703
Adjusted quarterly average assets	$ 318,470	$ 269,807
Common equity tier 1 capital	10.90%	11.60%
Tier 1 capital	0.132	0.134
Total capital	0.148	0.152
Tier 1 leverage	0.052	0.055
State Street Bank | Basel III Advanced Approaches
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Common stock and related surplus	$ 13,333	$ 13,033
Retained earnings	15,977	14,454
Accumulated other comprehensive income (loss)	(1,805)	(2,097)
Treasury stock, at cost	0	0
Total	27,505	25,390
Goodwill and other intangible assets, net of associated deferred tax liabilities	(8,054)	(8,208)
Other adjustments	(278)	(298)
Common equity tier 1 capital	19,173	16,884
Preferred stock	0	0
Tier 1 capital	19,173	16,884
Qualifying subordinated long-term debt	530	536
Adjusted allowance for credit losses	0	0
Total capital	19,703	17,420
Credit risk	57,883	54,942
Operational risk	47,538	42,297
Market risk	2,000	2,475
Total risk-weighted assets	107,421	99,714
Adjusted quarterly average assets	$ 314,754	$ 266,818
Common equity tier 1 capital	17.80%	16.90%
Tier 1 capital	0.178	0.169
Total capital	0.183	0.175
Tier 1 leverage	0.061	0.063
State Street Bank | Basel III Standardized Approach
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Common stock and related surplus	$ 13,333	$ 13,033
Retained earnings	15,977	14,454
Accumulated other comprehensive income (loss)	(1,805)	(2,097)
Treasury stock, at cost	0	0
Total	27,505	25,390
Goodwill and other intangible assets, net of associated deferred tax liabilities	(8,054)	(8,208)
Other adjustments	(278)	(298)
Common equity tier 1 capital	19,173	16,884
Preferred stock	0	0
Tier 1 capital	19,173	16,884
Qualifying subordinated long-term debt	530	536
Adjusted allowance for credit losses	183	150
Total capital	19,886	17,570
Credit risk	121,785	107,067
Market risk	2,000	2,475
Total risk-weighted assets	123,785	109,542
Adjusted quarterly average assets	$ 314,754	$ 266,818
Common equity tier 1 capital	15.50%	15.40%
Tier 1 capital	0.155	0.154
Total capital	0.161	0.160
Tier 1 leverage	0.061	0.063

Net Interest Income - Component

Net Interest Income - Components of Interest Revenue and Interest Expense (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Interest income:
Interest-bearing deposits with banks	$ 3,634	$ 2,869	$ 842
Investment securities:
Investment securities available-for-sale	2,680	1,744	724
Investment securities held-to-maturity	1,090	1,262	979
Total investment securities	3,770	3,006	1,703
Securities purchased under resale agreements	686	312	188
Loans	2,271	1,862	972
Other interest-earning assets	1,616	1,131	383
Total interest income	11,977	9,180	4,088
Interest expense:
Interest-bearing deposits	6,627	4,991	967
Securities sold under repurchase agreements	156	34	14
Federal funds purchased	0	3	0
Short-term borrowings	577	40	26
Long-term debt	1,086	888	376
Other interest-bearing liabilities	608	465	161
Total interest expense	9,054	6,421	1,544
Net interest income	$ 2,923	$ 2,759	$ 2,544

Equity-Based Compensation - Nar

Equity-Based Compensation - Narrative (Details) - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	May 31, 2023
Deferred Stock Awards and Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated share-based compensation	$ 223,000,000	$ 208,000,000	$ 240,000,000
Accelerated recognition due to restructuring plan	3,000,000	12,000,000	21,000,000
Deferred Stock Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Costs not yet recognized	169,000,000
Fair value for vested in period	$ 185,000,000	185,000,000	217,000,000
Period of recognition for unrecognized share-based compensation	2 years 2 months 12 days
Deferred Stock Awards | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	0 years
Deferred Stock Awards | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	4 years
Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Costs not yet recognized	$ 15,000,000
Fair value for vested in period	$ 33,000,000	$ 43,000,000	$ 60,000,000
Period of recognition for unrecognized share-based compensation	1 year 9 months 18 days
Performance Shares | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	3 years
Stock Appreciation Rights (SARs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercised (in shares)	0	0	0
Costs not yet recognized	$ 0
Cash Settled Stock Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Costs not yet recognized	0
Fair value for vested in period	$ 3,000,000	$ 3,000,000
2017 Stock Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized for issuance (in shares)				15,100,000
Additional shares authorized (in shares)	20,800,000
Accumulated number of shares awarded (in shares)	24,700,000	21,700,000	18,700,000
Shares awarded, but not delivered, available for reissue (in shares)	7,000,000
Shares available for grant (in shares)	18,300,000
2006 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized for issuance (in shares)				28,500,000

Equity-Based Compensation - Def

Equity-Based Compensation - Deferred Stock Awards (Details) - Deferred Stock Awards - $ / shares shares in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Shares
Beginning of Period (in shares)	4,968	5,279
Granted (in shares)	2,551	2,421
Vested (in shares)	(2,513)	(2,587)
Forfeited (in shares)	(147)	(145)
End of Period (in shares)	4,859	4,968
Weighted-Average Grant Date Fair Value
Beginning of Period (in USD per share)	$ 75.72	$ 72.43
Granted (in USD per share)	68.70	79.58
Vested (in USD per share)	73.62	71.54
Forfeited (in USD per share)	73.35	76.40
End of Period (in USD per share)	$ 73.20	$ 75.72

Equity-Based Compensation - Sch

Equity-Based Compensation - Schedule of Performance Awards (Details) - Performance Shares - $ / shares shares in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Shares
Beginning of Period (in shares)	2,206	2,296
Granted (in shares)	363	614
Forfeited (in shares)	(28)	(17)
Paid out (in shares)	(502)	(687)
End of Period (in shares)	2,039	2,206
Weighted-Average Grant Date Fair Value
Beginning of Period (in USD per share)	$ 74.33	$ 69.43
Granted (in USD per share)	63.49	79.96
Forfeited (in USD per share)	80.01	74.59
Paid Out (in USD per share)	65.70	62.99
End of Period (in USD per share)	$ 74.44	$ 74.33

Equity-Based Compensation - S_2

Equity-Based Compensation - Schedule of Cash Settled Stock Awards (Details) - Cash Settled Stock Awards - $ / shares shares in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Shares
Beginning of Period (in shares)	27	35
Granted (in shares)	40	24
Paid out (in shares)	(38)	(32)
End of Period (in shares)	29	27
Weighted-Average Grant Date Fair Value
Beginning of Period (in USD per share)	$ 83.37	$ 79.99
Granted (in USD per share)	69.96	83.80
Paid Out (in USD per share)	76.11	79.99
End of Period (in USD per share)	$ 74.52	$ 83.37

Employee Benefits (Details)

Employee Benefits (Details) $ in Millions	12 Months Ended
	Dec. 31, 2024 USD ($) employee	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Defined Benefit Plan Disclosure [Line Items]
Number of eligible employees for pension plan (in employee) | employee	0
Defined benefit expense	$ 17	$ 16	$ 21
Contributions by employer	212	194	$ 171
Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Defined benefit obligation	1,100	1,160
Defined benefit overfunded (underfunded) status	26	10
Postretirement Benefit Plan
Defined Benefit Plan Disclosure [Line Items]
Defined benefit obligation	19	1
Defined benefit overfunded (underfunded) status	(19)	(1)
SERP
Defined Benefit Plan Disclosure [Line Items]
Defined benefit obligation	1	25
Defined benefit overfunded (underfunded) status	$ (1)	$ (25)

Occupancy Expense and Informa_3

Occupancy Expense and Information Systems and Communications Expense - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Expenses [Line Items]
Depreciation and amortization	$ 824	$ 829	$ 842
Finance lease right-of-use asset	67	119
Finance lease liability	79	130
Accumulated amortization for finance lease right-of-use assets	135
Interest on lease liabilities	3	5
Right-of-use assets	$ 818	$ 805
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Other assets	Other assets
Lease liabilities	$ 839
Operating Lease, Liability, Statement of Financial Position [Extensible List]	Accrued expenses and other liabilities
Operating leases not yet commenced	$ 207
Minimum
Expenses [Line Items]
Operating leases not yet commenced, lease terms	3 years
Maximum
Expenses [Line Items]
Operating leases not yet commenced, lease terms	11 years

Occupancy Expense and Informa_4

Occupancy Expense and Information Systems and Communications Expense - Lease Costs (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Leases [Abstract]
Operating Lease, Lease Income, Statement of Income or Comprehensive Income [Extensible Enumeration]	Occupancy	Occupancy
Amortization of right-of-use assets	$ 48	$ 48
Interest on lease liabilities	3	5
Total finance lease expense	51	53
Sublease income	0	0
Net finance lease expense	51	53
Operating lease expense	168	163
Sublease income	(17)	(23)
Net operating lease expense	151	140
Net lease expense	202	193
Operating cash flows from finance leases	3	5
Operating cash flows from operating leases	179	197
Financing cash flows from finance leases	46	45
Operating leases	174	461
Finance leases	$ 0	$ 0

Occupancy Expense and Informa_5

Occupancy Expense and Information Systems and Communications Expense - Summary of Future Minimum Lease Payments (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Lessee, Operating Lease, Liability, to be Paid, Fiscal Year Maturity [Abstract]
2025	$ 182
2026	152
2027	134
2028	118
2029	88
Thereafter	342
Total future minimum lease payments	1,016
Less imputed interest	(177)
Total	839
Finance Lease, Liability, to be Paid, Fiscal Year Maturity [Abstract]
2025	55
2026	26
2027	0
2028	0
2029	0
Thereafter	0
Total future minimum lease payments	81
Less imputed interest	(2)
Total	79	$ 130
2025	237
2026	178
2027	134
2028	118
2029	88
Thereafter	342
Total future minimum lease payments	1,097
Less imputed interest	(179)
Total	$ 918

Occupancy Expense and Informa_6

Occupancy Expense and Information Systems and Communications Expense - Summary of Other Lease Information (Details)	Dec. 31, 2024	Dec. 31, 2023
Weighted-average remaining lease term (in years):
Finance leases	1 year 4 months 24 days	2 years 6 months
Operating leases	8 years 1 month 6 days	8 years 6 months
Weighted-average discount rate:
Finance leases	3%	3%
Operating leases	4%	4%

Expenses - Schedule of Expenses

Expenses - Schedule of Expenses (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Other Expenses [Abstract]
Professional services	$ 465	$ 428	$ 375
Regulatory fees and assessments	142	464	83
Sales advertising and public relations	142	142	99
Securities processing	78	49	63
Bank operations	51	45	41
Donations	28	27	27
Other	433	374	387
Total other expenses	1,339	1,529	$ 1,075
FDIC special assessment, recovery of estimated losses	$ 99	$ 387

Expenses - Narrative (Details)

Expenses - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 2	$ 203
Compensation and Employee Benefits
Restructuring Cost and Reserve [Line Items]
Restructuring charges	15	182
Occupancy Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 13	$ 21

Expenses - Restructuring Reserv

Expenses - Restructuring Reserve (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Restructuring Reserve [Roll Forward]
Beginning balance	$ 208	$ 88	$ 74
Net repositioning benefit	(2)	203	78
Payments and Other Adjustments	(110)	(83)	(64)
Ending balance	96	208	88
Employee Related Costs
Restructuring Reserve [Roll Forward]
Beginning balance	207	83	68
Net repositioning benefit	(15)	182	58
Payments and Other Adjustments	(96)	(58)	(43)
Ending balance	96	207	83
Real Estate Actions
Restructuring Reserve [Roll Forward]
Beginning balance	1	5	6
Net repositioning benefit	13	21	20
Payments and Other Adjustments	(14)	(25)	(21)
Ending balance	$ 0	$ 1	$ 5

Income Taxes - Schedule of Comp

Income Taxes - Schedule of Components of Income Tax Expense (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Current:
Federal	$ 108	$ 160	$ 161
State	68	79	112
Non-U.S.	387	317	342
Total current expense	563	556	615
Deferred:
Federal	77	(77)	(16)
State	2	(63)	(2)
Non-U.S.	66	(44)	(44)
Total deferred expense (benefit)	145	(184)	(62)
Total income tax expense (benefit)	$ 708	$ 372	$ 553

Income Taxes - Schedule of Reco

Income Taxes - Schedule of Reconciliation of the U.S. Statutory Income Tax Rate to the Effective Tax Rate (Details)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Income Tax Disclosure [Abstract]
U.S. federal income tax rate	21%	21%	21%
State taxes, net of federal benefit	1.80%	2.40%	3.10%
Tax-exempt income	(1.00%)	(1.50%)	(1.00%)
Business tax credits	(2.00%)	(3.60%)	(4.00%)
Foreign tax differential	1%	(0.60%)	0%
Foreign tax credit (benefits)/ limitations	0.60%	(2.00%)	(0.10%)
Change in Valuation Allowance	(0.50%)	(0.20%)	(2.00%)
Other, net	(0.10%)	0.60%	(0.40%)
Effective tax rate	20.80%	16.10%	16.60%

Income Taxes - Narrative (Detai

Income Taxes - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Undistributed indefinitely reinvested earnings of certain foreign subsidiaries	$ 8,380
Unrecognized tax benefits	237	$ 237	$ 285	$ 252
Unrecognized tax benefits that would impact effective tax rate	220	197	272
Maximum estimated income tax expense change in unrecognized tax benefit in the next 12 months	37
Interest expense for tax examination	8	7	8
Interest accrued for tax examination	$ 21	$ 21	$ 15

Income Taxes - Schedule of Co_2

Income Taxes - Schedule of Components of Deferred Tax Liabilities and Assets (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Deferred tax assets:
Other amortizable assets	$ 189	$ 265
Tax credit carryforwards	577	673
Lease obligations	214	236
Deferred compensation	111	104
Restructuring charges and other reserves	227	224
NOL and other carryforwards	147	167
Pension plan	21	24
Foreign currency translation	63	51
Unrealized losses on investment securities, net	184	352
Total deferred tax assets	1,733	2,096
Valuation allowance for deferred tax assets	(172)	(200)
Deferred tax assets, net of valuation allowance	1,561	1,896
Deferred tax liabilities:
Fixed and intangible assets	634	574
Investment basis differences	47	40
Right-of-use Assets	198	214
Other	40	68
Total deferred tax liabilities	$ 919	$ 896

Income Taxes - Deferred Tax Ass

Income Taxes - Deferred Tax Asset Valuation Allowances (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Valuation Allowance [Line Items]
Other amortizable assets	$ 189	$ 265
Tax credits	577
NOLs - Non-U.S.	130
NOLs - U.S.	14
Other carryforwards	2
Valuation Allowance	(172)	$ (200)
Other amortizable assets
Valuation Allowance [Line Items]
Valuation Allowance	(72)
Tax credits
Valuation Allowance [Line Items]
Valuation Allowance	(8)
NOLs - Non-U.S.
Valuation Allowance [Line Items]
Valuation Allowance	(80)
NOLs - U.S.
Valuation Allowance [Line Items]
Valuation Allowance	(10)
Other carryforwards
Valuation Allowance [Line Items]
Valuation Allowance	$ (2)

Income Taxes - Schedule of Unre

Income Taxes - Schedule of Unrecognized Tax Benefits (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Unrecognized Tax Benefits [Roll Forward]
Beginning balance	$ 237	$ 285	$ 252
Decrease related to agreements with tax authorities	(22)	(32)	(4)
Increase related to tax positions taken during current year	36	39	48
Increase/(Decrease) related to tax positions taken during prior years	11	(34)	8
Decreases related to a lapse of the applicable statute of limitations	(25)	(21)	(19)
Ending balance	$ 237	$ 237	$ 285

Earnings Per Common Share (Deta

Earnings Per Common Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Earnings Per Share [Abstract]
Net income	$ 2,687	$ 1,944	$ 2,774
Preferred stock dividends	(202)	(122)	(112)
Dividends and undistributed earnings allocated to participating securities	(2)	(1)	(2)
Net income available to common shareholders, Basic	2,483	1,821	2,660
Net income available to common shareholders, Diluted	$ 2,483	$ 1,821	$ 2,660
Basic average common shares (in shares)	297,883	322,337	365,214
Effect of dilutive securities: equity-based awards (in shares)	4,343	4,231	4,895
Diluted average common shares (in shares)	302,226	326,568	370,109
Anti-dilutive securities (in shares)	14	1,251	866
Basic (in USD per share)	$ 8.33	$ 5.65	$ 7.28
Diluted (in USD per share)	$ 8.21	$ 5.58	$ 7.19

Line of Business Information -

Line of Business Information - Narrative (Details) $ in Millions	12 Months Ended
	Dec. 31, 2024 line_of_business	Dec. 31, 2024 USD ($)	Dec. 31, 2024 reporting_segment	Dec. 31, 2024	Dec. 31, 2024 reportable_segment	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments	2		2		2
Restructuring charges		$ 2				$ 203
Other
Segment Reporting Information [Line Items]
Restructuring charges		$ (2)				$ 203	$ 70
Investment Servicing and Investment Management | Investment Servicing and Management Services
Segment Reporting Information [Line Items]
Percentage of consolidated revenues by segment				70%
Investment Servicing and Investment Management | Processing and Other Services
Segment Reporting Information [Line Items]
Percentage of consolidated revenues by segment				30%

Line of Business Information _2

Line of Business Information - Summary of Line of Business (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Segment Reporting Information [Line Items]
Servicing fees	$ 5,016	$ 4,922	$ 5,087
Management fees	2,124	1,876	1,939
Foreign exchange trading services	1,401	1,265	1,376
Securities finance	438	426	416
Software and processing fees	888	811	789
Other fee revenue	289	180	(1)
Total fee revenue	10,156	9,480	9,606
Net interest income	2,923	2,759	2,544
Total other income	(79)	(294)	(2)
Total revenue	13,000	11,945	12,148
Provision for credit losses	75	46	20
Compensation and employee benefits expenses	4,697	4,744	4,428
Information systems and communications	1,829	1,703	1,630
Transaction processing services	998	957	971
Other	2,006	2,179	1,772
Total expenses	9,530	9,583	8,801
Income before income tax expense	$ 3,395	$ 2,316	$ 3,327
Pre-tax margin	26%	19%	27%
Average assets (in billions)	$ 311,700	$ 274,700	$ 286,400
Operating Segments | Investment Servicing
Segment Reporting Information [Line Items]
Servicing fees	5,016	4,922	5,087
Management fees	0	0	0
Foreign exchange trading services	1,248	1,140	1,271
Securities finance	415	402	397
Software and processing fees	888	811	789
Other fee revenue	188	145	46
Total fee revenue	7,755	7,420	7,590
Net interest income	2,899	2,740	2,551
Total other income	2	0	(2)
Total revenue	10,656	10,160	10,139
Provision for credit losses	75	46	20
Compensation and employee benefits expenses	4,078	4,033	3,896
Information systems and communications	1,743	1,568	1,535
Transaction processing services	825	777	809
Other	1,041	1,035	1,020
Total expenses	7,687	7,413	7,260
Income before income tax expense	$ 2,894	$ 2,701	$ 2,859
Pre-tax margin	27%	27%	28%
Average assets (in billions)	$ 308,500	$ 271,500	$ 283,200
Operating Segments | Investment Management
Segment Reporting Information [Line Items]
Servicing fees	0	0	0
Management fees	2,124	1,876	1,939
Foreign exchange trading services	138	125	82
Securities finance	23	24	19
Software and processing fees	0	0	0
Other fee revenue	35	35	(47)
Total fee revenue	2,320	2,060	1,993
Net interest income	24	19	(7)
Total other income	0	0	0
Total revenue	2,344	2,079	1,986
Provision for credit losses	0	0	0
Compensation and employee benefits expenses	555	520	478
Information systems and communications	86	94	95
Transaction processing services	173	180	162
Other	841	746	661
Total expenses	1,655	1,540	1,396
Income before income tax expense	$ 689	$ 539	$ 590
Pre-tax margin	29%	26%	30%
Average assets (in billions)	$ 3,200	$ 3,200	$ 3,200
Other
Segment Reporting Information [Line Items]
Servicing fees	0	0	0
Management fees	0	0	0
Foreign exchange trading services	15	0	23
Securities finance	0	0	0
Software and processing fees	0	0	0
Other fee revenue	66	0	0
Total fee revenue	81	0	23
Net interest income	0	0	0
Total other income	(81)	(294)	0
Total revenue	0	(294)	23
Provision for credit losses	0	0	0
Compensation and employee benefits expenses	64	191	54
Information systems and communications	0	41	0
Transaction processing services	0	0	0
Other	124	398	91
Total expenses	188	630	145
Income before income tax expense	$ (188)	$ (924)	$ (122)

Line of Business Information _3

Line of Business Information - Components of Other (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Segment Reporting Information [Line Items]
Fee revenue	$ 10,156	$ 9,480	$ 9,606
Other Income	(79)	(294)	(2)
Deferred incentive compensation expense acceleration	(79)
Net repositioning charges	(2)	(203)
Net acquisition and restructuring costs	0	15	(65)
Income before income tax expense	3,395	2,316	3,327
Net repositioning benefit	(2)	203	78
Other
Segment Reporting Information [Line Items]
Fee revenue	81	0	23
Other Income	(81)	(294)	0
Deferred incentive compensation expense acceleration	(79)	0	0
Net repositioning charges	2	(203)	(70)
Net acquisition and restructuring costs	0	15	(65)
FDIC special assessment and other	(111)	(442)	(10)
Income before income tax expense	(188)	(924)	$ (122)
Gain on sale of equity investment	66
Litigation proceeds	15
Loss on sale of investment securities	81	294
Net repositioning benefit	(15)
Occupancy costs related to real estate footprint optimization	13	21
Compensation and employee benefits expenses related to workforce rationalization		182
FDIC Special Assessment	99	387
Operating model changes	$ 12	$ 41

Revenue from Contracts with C_3

Revenue from Contracts with Customers - Disaggregation of Revenues (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Disaggregation of Revenue [Line Items]
Total revenue	$ 13,000	$ 11,945	$ 12,148
Servicing fees
Disaggregation of Revenue [Line Items]
Total revenue	5,016	4,922	5,087
Management fees
Disaggregation of Revenue [Line Items]
Total revenue	2,124	1,876	1,939
Foreign exchange trading services
Disaggregation of Revenue [Line Items]
Total revenue	1,401	1,265	1,376
Securities finance
Disaggregation of Revenue [Line Items]
Total revenue	438	426	416
Software and processing fees
Disaggregation of Revenue [Line Items]
Total revenue	888	811	789
Other fee revenue
Disaggregation of Revenue [Line Items]
Total revenue	289	180	(1)
Total fee revenue
Disaggregation of Revenue [Line Items]
Total revenue	10,156	9,480	9,606
Net interest income
Disaggregation of Revenue [Line Items]
Total revenue	2,923	2,759	2,544
Total other income
Disaggregation of Revenue [Line Items]
Total revenue	(79)	(294)	(2)
Operating Segments | Investment Servicing
Disaggregation of Revenue [Line Items]
Topic 606 revenue	6,272	6,118	6,282
All other revenue	4,384	4,042	3,857
Total revenue	10,656	10,160	10,139
Operating Segments | Investment Servicing | Servicing fees
Disaggregation of Revenue [Line Items]
Topic 606 revenue	5,016	4,922	5,087
All other revenue	0	0	0
Total revenue	5,016	4,922	5,087
Operating Segments | Investment Servicing | Management fees
Disaggregation of Revenue [Line Items]
Topic 606 revenue	0	0	0
All other revenue	0	0	0
Total revenue	0	0	0
Operating Segments | Investment Servicing | Foreign exchange trading services
Disaggregation of Revenue [Line Items]
Topic 606 revenue	386	344	363
All other revenue	862	796	908
Total revenue	1,248	1,140	1,271
Operating Segments | Investment Servicing | Securities finance
Disaggregation of Revenue [Line Items]
Topic 606 revenue	185	225	233
All other revenue	230	177	164
Total revenue	415	402	397
Operating Segments | Investment Servicing | Software and processing fees
Disaggregation of Revenue [Line Items]
Topic 606 revenue	685	627	599
All other revenue	203	184	190
Total revenue	888	811	789
Operating Segments | Investment Servicing | Other fee revenue
Disaggregation of Revenue [Line Items]
Topic 606 revenue	0	0	0
All other revenue	188	145	46
Total revenue	188	145	46
Operating Segments | Investment Servicing | Total fee revenue
Disaggregation of Revenue [Line Items]
Topic 606 revenue	6,272	6,118	6,282
All other revenue	1,483	1,302	1,308
Total revenue	7,755	7,420	7,590
Operating Segments | Investment Servicing | Net interest income
Disaggregation of Revenue [Line Items]
Topic 606 revenue	0	0	0
All other revenue	2,899	2,740	2,551
Total revenue	2,899	2,740	2,551
Operating Segments | Investment Servicing | Total other income
Disaggregation of Revenue [Line Items]
Topic 606 revenue	0	0	0
All other revenue	2	0	(2)
Total revenue	2	0	(2)
Operating Segments | Investment Management
Disaggregation of Revenue [Line Items]
Topic 606 revenue	2,262	2,001	2,021
All other revenue	82	78	(35)
Total revenue	2,344	2,079	1,986
Operating Segments | Investment Management | Servicing fees
Disaggregation of Revenue [Line Items]
Topic 606 revenue	0	0	0
All other revenue	0	0	0
Total revenue	0	0	0
Operating Segments | Investment Management | Management fees
Disaggregation of Revenue [Line Items]
Topic 606 revenue	2,124	1,876	1,939
All other revenue	0	0	0
Total revenue	2,124	1,876	1,939
Operating Segments | Investment Management | Foreign exchange trading services
Disaggregation of Revenue [Line Items]
Topic 606 revenue	138	125	82
All other revenue	0	0	0
Total revenue	138	125	82
Operating Segments | Investment Management | Securities finance
Disaggregation of Revenue [Line Items]
Topic 606 revenue	0	0	0
All other revenue	23	24	19
Total revenue	23	24	19
Operating Segments | Investment Management | Software and processing fees
Disaggregation of Revenue [Line Items]
Topic 606 revenue	0	0	0
All other revenue	0	0	0
Total revenue	0	0	0
Operating Segments | Investment Management | Other fee revenue
Disaggregation of Revenue [Line Items]
Topic 606 revenue	0	0	0
All other revenue	35	35	(47)
Total revenue	35	35	(47)
Operating Segments | Investment Management | Total fee revenue
Disaggregation of Revenue [Line Items]
Topic 606 revenue	2,262	2,001	2,021
All other revenue	58	59	(28)
Total revenue	2,320	2,060	1,993
Operating Segments | Investment Management | Net interest income
Disaggregation of Revenue [Line Items]
Topic 606 revenue	0	0	0
All other revenue	24	19	(7)
Total revenue	24	19	(7)
Operating Segments | Investment Management | Total other income
Disaggregation of Revenue [Line Items]
Topic 606 revenue	0	0	0
All other revenue	0	0	0
Total revenue	0	0	0
Other
Disaggregation of Revenue [Line Items]
Topic 606 revenue	0	0	0
All other revenue	0	(294)	23
Total revenue	0	(294)	23
Other | Servicing fees
Disaggregation of Revenue [Line Items]
Topic 606 revenue	0	0	0
All other revenue	0	0	0
Total revenue	0	0	0
Other | Management fees
Disaggregation of Revenue [Line Items]
Topic 606 revenue	0	0	0
All other revenue	0	0	0
Total revenue	0	0	0
Other | Foreign exchange trading services
Disaggregation of Revenue [Line Items]
Topic 606 revenue	0	0	0
All other revenue	15	0	23
Total revenue	15	0	23
Other | Securities finance
Disaggregation of Revenue [Line Items]
Topic 606 revenue	0	0	0
All other revenue	0	0	0
Total revenue	0	0	0
Other | Software and processing fees
Disaggregation of Revenue [Line Items]
Topic 606 revenue	0	0	0
All other revenue	0	0	0
Total revenue	0	0	0
Other | Other fee revenue
Disaggregation of Revenue [Line Items]
Topic 606 revenue	0	0	0
All other revenue	66	0	0
Total revenue	66	0	0
Other | Total fee revenue
Disaggregation of Revenue [Line Items]
Topic 606 revenue	0	0	0
All other revenue	81	0	23
Total revenue	81	0	23
Other | Net interest income
Disaggregation of Revenue [Line Items]
Topic 606 revenue	0	0	0
All other revenue	0	0	0
Total revenue	0	0	0
Other | Total other income
Disaggregation of Revenue [Line Items]
Topic 606 revenue	0	0	0
All other revenue	(81)	(294)	0
Total revenue	$ (81)	$ (294)	$ 0

Revenue from Contracts with C_4

Revenue from Contracts with Customers - Narrative (Details) $ in Millions	12 Months Ended
	Dec. 31, 2024 USD ($) line_of_business	Dec. 31, 2024 USD ($) reporting_segment	Dec. 31, 2024 USD ($) reportable_segment	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of reportable segments	2	2	2
Receivables related to contracts with customers	$ 3,080	$ 3,080	$ 3,080	$ 3,080	$ 2,720
Contract with customer, liability	$ 144	$ 144	$ 144	144	$ 133
Revenue recognized				$ 122
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-01-01
Accounts, Notes, Loans and Financing Receivable [Line Items]
Remaining performance obligation, percentage	50%	50%	50%	50%
Software License Sales & SaaS | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-01-01
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-cancelable performance obligations	$ 1,870	$ 1,870	$ 1,870	$ 1,870
Expected timing of satisfaction period	3 years	3 years	3 years	3 years

Non-U.S. Activities - Schedule

Non-U.S. Activities - Schedule of Results From Non-U.S. Operations (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Segment Reporting Information [Line Items]
Total revenue	$ 13,000	$ 11,945	$ 12,148
Income before income tax expense	3,395	2,316	3,327
Non-U.S.
Segment Reporting Information [Line Items]
Total revenue	5,485	5,108	5,170
Income before income tax expense	1,376	1,057	1,358
U.S.
Segment Reporting Information [Line Items]
Total revenue	7,515	6,837	6,978
Income before income tax expense	$ 2,019	$ 1,259	$ 1,969

Non-U.S. Activities - Narrative

Non-U.S. Activities - Narrative (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Segment Reporting Information [Line Items]
Total assets	$ 353,240	$ 297,258
Non-U.S.
Segment Reporting Information [Line Items]
Total assets	$ 88,350	$ 89,850

Parent Company Financial Stat_3

Parent Company Financial Statements - Statement of Income (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Condensed Financial Statements, Captions [Line Items]
Total revenue	$ 13,000	$ 11,945	$ 12,148
Other	1,339	1,529	1,075
Total expenses	9,530	9,583	8,801
Income tax expense	708	372	553
Equity in undistributed income (loss) of consolidated subsidiaries and unconsolidated entities:
Net income	2,687	1,944	2,774
Parent Company
Condensed Financial Statements, Captions [Line Items]
Cash dividends from consolidated banking subsidiary	1,250	4,550	1,500
Cash dividends from consolidated non-banking subsidiaries and unconsolidated entities	58	320	198
Other, net	516	274	69
Total revenue	1,824	5,144	1,767
Interest expense	1,170	975	426
Other	239	198	93
Total expenses	1,409	1,173	519
Income tax expense	(232)	(224)	(121)
Income (loss) before equity in undistributed income of consolidated subsidiaries and unconsolidated entities	647	4,195	1,369
Equity in undistributed income (loss) of consolidated subsidiaries and unconsolidated entities:
Consolidated banking subsidiary	1,522	(2,464)	1,275
Consolidated non-banking subsidiaries and unconsolidated entities	518	213	130
Net income	$ 2,687	$ 1,944	$ 2,774

Parent Company Financial Stat_4

Parent Company Financial Statements - Statement of Condition (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Assets:
Interest-bearing deposits with banks	$ 112,957	$ 87,665
Trading account assets	768	773
Other assets	64,514	44,806
Total assets	353,240	297,258
Liabilities:
Consolidated banking subsidiary	0	68
Consolidated non-banking subsidiaries and unconsolidated entities	2,063	896
Total liabilities	327,914	273,459
Shareholders’ equity	25,326	23,799	$ 25,191	$ 27,363
Total liabilities and shareholders’ equity	353,240	297,258
Parent Company
Assets:
Interest-bearing deposits with banks	438	659
Trading account assets	499	454
Investment securities available-for-sale	378	279
Consolidated banking subsidiary	27,504	25,391
Consolidated non-banking subsidiaries	10,487	10,055
Unconsolidated entities	114	111
Consolidated banking subsidiary	170	2
Consolidated non-banking subsidiaries and unconsolidated entities	9,211	6,816
Other assets	127	230
Total assets	48,928	43,997
Liabilities:
Accrued expenses and other liabilities	652	615
Long-term debt	20,887	18,619
Total liabilities	23,602	20,198
Shareholders’ equity	25,326	23,799
Total liabilities and shareholders’ equity	$ 48,928	$ 43,997

Parent Company Financial Stat_5

Parent Company Financial Statements - Statement of Cash Flows (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Operating Activities:
Net cash provided by (used in) operating activities	$ (13,210)	$ 690	$ 11,954
Investing Activities:
Net increase (decrease) in interest-bearing deposits with consolidated banking subsidiary	(25,292)	13,928	4,765
Purchases of available-for-sale securities	(44,301)	(23,089)	(18,029)
Net cash (used in) provided by investing activities	(39,483)	12,738	6,816
Financing Activities:
Proceeds from issuance of long-term debt, net of issuance costs	6,523	6,221	3,731
Payments for long-term debt	(2,046)	(2,545)	(1,567)
Proceeds from issuance of preferred stock, net of issuance costs	2,323	0	0
Payments for redemption of preferred stock	(1,500)	0	0
Repurchases of common stock	(1,319)	(3,781)	(1,500)
Repurchases of common stock for employee tax withholding	(83)	(95)	(123)
Payments for cash dividends	(1,033)	(970)	(972)
Net cash provided by (used in) financing activities	51,791	(13,351)	(18,431)
Net (decrease) increase	(902)	77	339
Cash and due from banks at beginning of period	4,047	3,970	3,631
Cash and due from banks at end of period	3,145	4,047	3,970
Parent Company
Operating Activities:
Net cash provided by (used in) operating activities	622	4,194	1,608
Investing Activities:
Net increase (decrease) in interest-bearing deposits with consolidated banking subsidiary	221	(199)	22
Proceeds from sales and maturities of available-for-sale securities	1,120	830	780
Purchases of available-for-sale securities	(1,204)	(836)	(886)
Investments in consolidated banking and non-banking subsidiaries	(9,330)	(10,784)	(16,252)
Sale or repayment of investment in consolidated banking and non-banking subsidiaries	7,875	7,920	15,092
Net cash (used in) provided by investing activities	(1,318)	(3,069)	(1,244)
Financing Activities:
Proceeds from issuance of long-term debt, net of issuance costs	4,281	6,221	3,731
Payments for long-term debt	(2,000)	(2,500)	(1,500)
Proceeds from issuance of preferred stock, net of issuance costs	2,350	0	0
Payments for redemption of preferred stock	(1,500)	0	0
Repurchases of common stock	(1,319)	(3,781)	(1,500)
Repurchases of common stock for employee tax withholding	(83)	(95)	(123)
Payments for cash dividends	(1,033)	(970)	(972)
Net cash provided by (used in) financing activities	696	(1,125)	(364)
Net (decrease) increase	0	0	0
Cash and due from banks at beginning of period	0	0	0
Cash and due from banks at end of period	$ 0	$ 0	$ 0

Subsequent Events (Details)

Subsequent Events (Details) - USD ($)		12 Months Ended
	Feb. 06, 2025	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Jan. 07, 2025
Subsequent Event [Line Items]
Proceeds from issuance of preferred stock, net of issuance costs		$ 2,323,000,000	$ 0	$ 0
Fixed-to-floating rate senior notes | Parent Company and Non-banking Subsidiaries | 4.857% Notes due 2034
Subsequent Event [Line Items]
Interest rate on debt		4.857%
Fixed-to-floating rate senior notes | Parent Company and Non-banking Subsidiaries | 1.746% notes due 2026
Subsequent Event [Line Items]
Interest rate on debt		1.746%
Subsequent Event | Series K Preferred Stock
Subsequent Event [Line Items]
Shares issued (in shares)	750,000
Ownership Interest Per Depositary Share	1%
Liquidation preference per share (USD per share)	$ 100,000
Proceeds from issuance of preferred stock, net of issuance costs	$ 743,000,000
Subsequent Event | Series K Preferred Stock, Depository Share
Subsequent Event [Line Items]
Liquidation preference per share (USD per share)	$ 1,000
Subsequent Event | Fixed-to-floating rate senior notes | Parent Company and Non-banking Subsidiaries | 4.857% Notes due 2034
Subsequent Event [Line Items]
Debt redeemed					$ 500,000,000
Interest rate on debt					4.857%
Subsequent Event | Fixed-to-floating rate senior notes | Parent Company and Non-banking Subsidiaries | 1.746% notes due 2026
Subsequent Event [Line Items]
Debt redeemed	$ 300,000,000
Interest rate on debt	1.746%