XML 16 R1.htm IDEA: XBRL DOCUMENT v3.25.4
Document and Entity Information - USD ($)
$ in Billions
 12 Months Ended
Dec. 31, 2025
Jan. 31, 2026
Jun. 30, 2025
Document Information [Line Items]      
Document Type 10-K    
Amendment Flag false    
Document Period End Date Dec. 31, 2025    
Document Fiscal Year Focus 2025    
Document Fiscal Period Focus FY    
Entity Registrant Name BlackRock, Inc.    
Entity Central Index Key 0002012383    
Current Fiscal Year End Date --12-31    
Entity Well-known Seasoned Issuer Yes    
Entity Current Reporting Status Yes    
Entity Voluntary Filers No    
Entity Filer Category Large Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag true    
Entity Shell Company false    
Document Financial Statement Error Correction [Flag] false    
Entity Public Float     $ 159
Entity File Number 001-42297    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 99-1116001    
Entity Address, Address Line One 50 Hudson Yards    
Entity Address, City or Town New York    
Entity Address, State or Province NY    
Entity Address, Postal Zip Code 10001    
City Area Code 212    
Local Phone Number 810-5800    
Document Annual Report true    
Document Transition Report false    
Entity Interactive Data Current Yes    
Auditor Name Deloitte & Touche LLP    
Auditor Firm ID 34    
Auditor Location New York, New York    
Documents Incorporated by Reference

The following documents are incorporated by reference herein:

Portions of the definitive Proxy Statement of BlackRock, Inc. to be filed pursuant to Regulation 14A of the general rules and regulations under the Securities Exchange Act of 1934, as amended, for the 2026 annual meeting of stockholders (“Proxy Statement”) are incorporated by reference into Part III of this Form 10-K.

   
Auditor Opinion [Text Block]

Opinion on the Financial Statements

We have audited the accompanying consolidated statements of financial condition of BlackRock, Inc. and subsidiaries (the "Company") as of December 31, 2025 and 2024, the related consolidated statements of income, comprehensive income, changes in equity, and cash flows, for each of the three years in the period ended December 31, 2025, and the related notes (collectively referred to as the "financial statements"). In our opinion, the financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2025 and 2024, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 2025, in conformity with accounting principles generally accepted in the United States of America.

We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the Company's internal control over financial reporting as of December 31, 2025, based on criteria established in Internal Control — Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission and our report dated February 25, 2026, expressed an unqualified opinion on the Company’s internal control over financial reporting.

    
Common Stock [Member]      
Document Information [Line Items]      
Trading Symbol BLK    
Title of 12(b) Security Common Stock, $.01 par value    
Security Exchange Name NYSE    
Entity Common Stock, Shares Outstanding   155,541,536  
3.750% Notes due 2035 [Member]      
Document Information [Line Items]      
Trading Symbol BLK 35    
Title of 12(b) Security 3.750% Notes due 2035    
Security Exchange Name NYSE    
Fully Diluted Shares [Member]      
Document Information [Line Items]      
Entity Common Stock, Shares Outstanding   163,156,051  
Exchangeable Units [Member]      
Document Information [Line Items]      
Entity Common Stock, Shares Outstanding   7,614,515