v3.26.1
Revenue - Summary of Investment Advisory, Administration Fees and Securities Lending Revenue by Type (Detail) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Disaggregation Of Revenue [Line Items]        
Total revenue $ 7,084 $ 5,423 $ 13,782 $ 10,699
Investment Advisory, Administration Fees and Securities Lending Revenue [Member]        
Disaggregation Of Revenue [Line Items]        
Total revenue [1] 5,726 4,454 11,164 8,855
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] | Equity Active Product [Member]        
Disaggregation Of Revenue [Line Items]        
Total revenue 626 507 1,219 1,025
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] | Equity ETFs [Member]        
Disaggregation Of Revenue [Line Items]        
Total revenue 1,989 1,401 3,782 2,750
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] | Equity [Member]        
Disaggregation Of Revenue [Line Items]        
Total revenue 2,615 1,908 5,001 3,775
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] | Fixed Income Active [Member]        
Disaggregation Of Revenue [Line Items]        
Total revenue 539 487 1,070 979
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] | Fixed Income ETFs [Member]        
Disaggregation Of Revenue [Line Items]        
Total revenue 443 366 877 718
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] | Fixed Income [Member]        
Disaggregation Of Revenue [Line Items]        
Total revenue 982 853 1,947 1,697
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] | Multi-asset [Member]        
Disaggregation Of Revenue [Line Items]        
Total revenue 387 312 758 625
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] | Alternatives [Member]        
Disaggregation Of Revenue [Line Items]        
Total revenue 851 656 1,706 1,341
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] | Alternatives [Member] | Private Markets [Member]        
Disaggregation Of Revenue [Line Items]        
Total revenue 639 499 1,297 1,034
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] | Alternatives [Member] | Liquid Alternatives [Member]        
Disaggregation Of Revenue [Line Items]        
Total revenue 212 157 409 307
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] | Non-ETF Index [Member]        
Disaggregation Of Revenue [Line Items]        
Total revenue 385 313 727 620
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] 163 108 342 200
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] | Cash Management [Member]        
Disaggregation Of Revenue [Line Items]        
Total revenue 343 304 683 597
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] | Long-term [Member]        
Disaggregation Of Revenue [Line Items]        
Total revenue 5,383 4,150 10,481 8,258
Investment Advisory Performance Fees [Member]        
Disaggregation Of Revenue [Line Items]        
Total revenue 305 94 577 154
Investment Advisory Performance Fees [Member] | Equity [Member]        
Disaggregation Of Revenue [Line Items]        
Total revenue 60 12 82 22
Investment Advisory Performance Fees [Member] | Fixed Income [Member]        
Disaggregation Of Revenue [Line Items]        
Total revenue 3 2 5 14
Investment Advisory Performance Fees [Member] | Multi-asset [Member]        
Disaggregation Of Revenue [Line Items]        
Total revenue 5 6 14 10
Investment Advisory Performance Fees [Member] | Alternatives [Member]        
Disaggregation Of Revenue [Line Items]        
Total revenue 237 74 476 108
Investment Advisory Performance Fees [Member] | Alternatives [Member] | Private Markets [Member]        
Disaggregation Of Revenue [Line Items]        
Total revenue 137 39 369 63
Investment Advisory Performance Fees [Member] | Alternatives [Member] | Liquid Alternatives [Member]        
Disaggregation Of Revenue [Line Items]        
Total revenue 100 35 107 45
Technology Services and Subscription Revenue [Member]        
Disaggregation Of Revenue [Line Items]        
Total revenue 566 499 1,096 935
Distribution Fees [Member]        
Disaggregation Of Revenue [Line Items]        
Total revenue 395 320 784 641
Advisory and Other Revenue [Member]        
Disaggregation Of Revenue [Line Items]        
Total revenue 92 56 161 114
Advisory and Other Revenue [Member] | Advisory [Member]        
Disaggregation Of Revenue [Line Items]        
Total revenue 8 13 20 27
Advisory and Other Revenue [Member] | Other [Member]        
Disaggregation Of Revenue [Line Items]        
Total revenue $ 84 $ 43 $ 141 $ 87
[1] Amounts include securities lending revenue of $239 million and $171 million for the three months ended June 30, 2026 and 2025, respectively, and $418 million and $328 million for the six months ended June 30, 2026 and 2025, respectively.
[2] Amounts include commodity ETFs and exchange-traded products ("ETPs").