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Revenue - Summary of Investment Advisory, Administration Fees and Securities Lending Revenue by Type (Detail) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Disaggregation Of Revenue [Line Items] |  |  |  |
Total revenue |  | $ 24,216 | $ 20,407 | $ 17,859
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Total revenue | [1],[2] | 19,179 | 16,100 | 14,399
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] | Equity Active Product [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Total revenue | [2] | 2,167 | 2,166 | 2,000
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] | Equity ETFs [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Total revenue | [2] | 6,043 | 5,124 | 4,418
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] | Equity [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Total revenue | [2] | 8,210 | 7,290 | 6,418
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] | Fixed Income Active [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Total revenue | [2] | 2,018 | 1,952 | 1,897
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] | Fixed Income ETFs [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Total revenue | [2] | 1,532 | 1,367 | 1,230
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] | Fixed Income [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Total revenue | [2] | 3,550 | 3,319 | 3,127
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] | Active Multi-Asset [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Total revenue | [2] | 1,332 | 1,248 | 1,172
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] | Alternatives [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Total revenue | [2] | 3,019 | 1,764 | 1,461
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] | Alternatives [Member] | Private Markets [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Total revenue | [2] | 2,350 | 1,196 | 889
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] | Alternatives [Member] | Liquid Alternatives [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Total revenue | [2] | 669 | 568 | 572
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] | Non-ETF Index [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Total revenue | [2] | 1,321 | 1,183 | 1,127
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] | Digital Assets, Commodities and Multi-asset ETFs [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Total revenue | [2],[3] | 502 | 247 | 185
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] | Cash Management [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Total revenue | [2] | 1,245 | 1,049 | 909
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] | Long-term [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Total revenue | [2] | 17,934 | 15,051 | 13,490
Investment Advisory Performance Fees [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Total revenue |  | 1,424 | 1,207 | 554
Investment Advisory Performance Fees [Member] | Equity [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Total revenue |  | 132 | 161 | 99
Investment Advisory Performance Fees [Member] | Fixed Income [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Total revenue |  | 16 | 34 | 4
Investment Advisory Performance Fees [Member] | Multi-asset [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Total revenue |  | 23 | 24 | 28
Investment Advisory Performance Fees [Member] | Alternatives [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Total revenue |  | 1,253 | 988 | 423
Investment Advisory Performance Fees [Member] | Alternatives [Member] | Private Markets [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Total revenue |  | 695 | 308 | 273
Investment Advisory Performance Fees [Member] | Alternatives [Member] | Liquid Alternatives [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Total revenue |  | 558 | 680 | 150
Technology Services and Subscription Revenue [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Total revenue |  | 1,981 | 1,603 | 1,485
Distribution Fees [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Total revenue |  | 1,355 | 1,273 | 1,262
Advisory and Other Revenue [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Total revenue |  | 277 | 224 | 159
Advisory and Other Revenue [Member] | Advisory [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Total revenue |  | 50 | 49 | 81
Advisory and Other Revenue [Member] | Other [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Total revenue |  | $ 227 | $ 175 | $ 78
[1] | Amounts include $705 million, $615 million and $675 million of securities lending revenue for 2025, 2024 and 2023, respectively.
[2] | Beginning in the first quarter of 2025, BlackRock reclassified the presentation of the Company's investment advisory, administration fees and securities lending revenue line items to align with the updated presentation of the Company's AUM line items. Such line items have been reclassified for 2024 and 2023 to conform to this new presentation. See page 11 of Exhibit 99.2 to the Current Report on Form 8-K furnished on April 11, 2025 for the reclassified presentation of the 2024 and 2023 investment advisory, administration fees and securities lending revenue line items.
[3] | Amounts include commodity ETFs and exchange-traded products ("ETPs")

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