v3.24.2.u1
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, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Disaggregation Of Revenue [Line Items]        
Total revenue $ 4,805 $ 4,463 $ 9,533 $ 8,706
Investment Advisory, Administration Fees and Securities Lending Revenue [Member]        
Disaggregation Of Revenue [Line Items]        
Total revenue 3,875 3,611 7,653 7,113
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] | Equity Active Product [Member]        
Disaggregation Of Revenue [Line Items]        
Total revenue 539 506 1,055 1,006
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] | Equity ETFs [Member]        
Disaggregation Of Revenue [Line Items]        
Total revenue 1,250 1,102 2,440 2,180
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] | Equity Non-ETF Index [Member]        
Disaggregation Of Revenue [Line Items]        
Total revenue 190 197 377 374
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] | Equity [Member]        
Disaggregation Of Revenue [Line Items]        
Total revenue 1,979 1,805 3,872 3,560
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] | Fixed Income Active [Member]        
Disaggregation Of Revenue [Line Items]        
Total revenue 481 482 965 950
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] | Fixed Income ETFs [Member]        
Disaggregation Of Revenue [Line Items]        
Total revenue 326 309 653 604
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] | Fixed Income Non-ETF Index [Member]        
Disaggregation Of Revenue [Line Items]        
Total revenue 88 88 180 175
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] | Fixed Income [Member]        
Disaggregation Of Revenue [Line Items]        
Total revenue 895 879 1,798 1,729
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] | Multi-asset [Member]        
Disaggregation Of Revenue [Line Items]        
Total revenue 313 300 627 596
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] | Alternatives [Member]        
Disaggregation Of Revenue [Line Items]        
Total revenue 120 100 310 133
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] | Alternatives [Member] | Illiquid Alternatives [Member]        
Disaggregation Of Revenue [Line Items]        
Total revenue 241 206 481 407
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] | Alternatives [Member] | Liquid Alternatives [Member]        
Disaggregation Of Revenue [Line Items]        
Total revenue 141 146 279 291
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] | Alternatives [Member] | Currency and Commodities [Member]        
Disaggregation Of Revenue [Line Items]        
Total revenue 59 49 104 95
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] | Cash Management [Member]        
Disaggregation Of Revenue [Line Items]        
Total revenue 247 226 492 435
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] | Long-term [Member]        
Disaggregation Of Revenue [Line Items]        
Total revenue 3,628 3,385 7,161 6,678
Investment Advisory Performance Fees [Member]        
Disaggregation Of Revenue [Line Items]        
Total revenue 164 118 368 173
Investment Advisory Performance Fees [Member] | Equity [Member]        
Disaggregation Of Revenue [Line Items]        
Total revenue 28 15 36 21
Investment Advisory Performance Fees [Member] | Fixed Income [Member]        
Disaggregation Of Revenue [Line Items]        
Total revenue 5 0 9 1
Investment Advisory Performance Fees [Member] | Multi-asset [Member]        
Disaggregation Of Revenue [Line Items]        
Total revenue 11 3 13 18
Investment Advisory Performance Fees [Member] | Alternatives [Member]        
Disaggregation Of Revenue [Line Items]        
Total revenue 441 401 864 793
Investment Advisory Performance Fees [Member] | Alternatives [Member] | Illiquid Alternatives [Member]        
Disaggregation Of Revenue [Line Items]        
Total revenue 68 79 193 100
Investment Advisory Performance Fees [Member] | Alternatives [Member] | Liquid Alternatives [Member]        
Disaggregation Of Revenue [Line Items]        
Total revenue 52 21 117 33
Technology Services Revenue [Member]        
Disaggregation Of Revenue [Line Items]        
Total revenue 395 359 772 699
Distribution Fees [Member]        
Disaggregation Of Revenue [Line Items]        
Total revenue 318 319 628 638
Advisory and Other Revenue [Member]        
Disaggregation Of Revenue [Line Items]        
Total revenue 53 56 112 83
Advisory and Other Revenue [Member] | Advisory [Member]        
Disaggregation Of Revenue [Line Items]        
Total revenue 11 31 24 45
Advisory and Other Revenue [Member] | Other [Member]        
Disaggregation Of Revenue [Line Items]        
Total revenue $ 42 $ 25 $ 88 $ 38