v3.22.0.1
Revenue - Summary of Investment Advisory, Administration Fees and Securities Lending Revenue (Collectively "Base Fees") by Type (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Disaggregation Of Revenue [Line Items]      
Total revenue $ 19,374 $ 16,205 $ 14,539
Investment Advisory, Administration Fees and Securities Lending Revenue [Member]      
Disaggregation Of Revenue [Line Items]      
Total revenue 15,260 12,639 11,777
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] | Equity Active Product [Member]      
Disaggregation Of Revenue [Line Items]      
Total revenue 2,571 1,737 1,554
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] | Equity ETFs [Member]      
Disaggregation Of Revenue [Line Items]      
Total revenue 4,658 3,499 3,495
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] | Equity Non-ETF Index [Member]      
Disaggregation Of Revenue [Line Items]      
Total revenue 771 664 667
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] | Equity [Member]      
Disaggregation Of Revenue [Line Items]      
Total revenue 8,000 5,900 5,716
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] | Fixed Income Active [Member]      
Disaggregation Of Revenue [Line Items]      
Total revenue 2,191 1,957 1,918
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] | Fixed Income ETFs [Member]      
Disaggregation Of Revenue [Line Items]      
Total revenue 1,201 1,119 963
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] | Fixed Income Non-ETF Index [Member]      
Disaggregation Of Revenue [Line Items]      
Total revenue 471 463 405
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] | Fixed Income [Member]      
Disaggregation Of Revenue [Line Items]      
Total revenue 3,863 3,539 3,286
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] | Multi-asset [Member]      
Disaggregation Of Revenue [Line Items]      
Total revenue 1,414 1,163 1,148
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] | Alternatives [Member]      
Disaggregation Of Revenue [Line Items]      
Total revenue 1,513 1,247 1,009
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] | Alternatives [Member] | Illiquid Alternatives [Member]      
Disaggregation Of Revenue [Line Items]      
Total revenue 668 577 488
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] | Alternatives [Member] | Liquid Alternatives [Member]      
Disaggregation Of Revenue [Line Items]      
Total revenue 629 502 413
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] | Alternatives [Member] | Currency and Commodities [Member]      
Disaggregation Of Revenue [Line Items]      
Total revenue 216 168 108
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] | Cash Management [Member]      
Disaggregation Of Revenue [Line Items]      
Total revenue 470 790 618
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] | Long-term [Member]      
Disaggregation Of Revenue [Line Items]      
Total revenue 14,790 11,849 11,159
Investment Advisory Performance Fees [Member]      
Disaggregation Of Revenue [Line Items]      
Total revenue 1,143 1,104 450
Investment Advisory Performance Fees [Member] | Equity [Member]      
Disaggregation Of Revenue [Line Items]      
Total revenue 153 91 36
Investment Advisory Performance Fees [Member] | Fixed Income [Member]      
Disaggregation Of Revenue [Line Items]      
Total revenue 48 35 10
Investment Advisory Performance Fees [Member] | Multi-asset [Member]      
Disaggregation Of Revenue [Line Items]      
Total revenue 32 35 19
Investment Advisory Performance Fees [Member] | Alternatives [Member]      
Disaggregation Of Revenue [Line Items]      
Total revenue 910 943 385
Investment Advisory Performance Fees [Member] | Alternatives [Member] | Illiquid Alternatives [Member]      
Disaggregation Of Revenue [Line Items]      
Total revenue 208 83 136
Investment Advisory Performance Fees [Member] | Alternatives [Member] | Liquid Alternatives [Member]      
Disaggregation Of Revenue [Line Items]      
Total revenue 702 860 249
Technology Services Revenue [Member]      
Disaggregation Of Revenue [Line Items]      
Total revenue 1,281 1,139 974
Distribution Fees [Member]      
Disaggregation Of Revenue [Line Items]      
Total revenue 1,521 1,131 1,069
Distribution Fees [Member] | Retrocessions [Member]      
Disaggregation Of Revenue [Line Items]      
Total revenue 1,098 736 658
Distribution Fees [Member] | 12b-1 Fees (US Mutual Fund Distribution Fees) [Member]      
Disaggregation Of Revenue [Line Items]      
Total revenue 358 337 358
Distribution Fees [Member] | Other Distribution Fees [Member]      
Disaggregation Of Revenue [Line Items]      
Total revenue 65 58 53
Advisory and Other Revenue [Member]      
Disaggregation Of Revenue [Line Items]      
Total revenue 169 192 269
Advisory and Other Revenue [Member] | Advisory [Member]      
Disaggregation Of Revenue [Line Items]      
Total revenue 68 68 99
Advisory and Other Revenue [Member] | Other [Member]      
Disaggregation Of Revenue [Line Items]      
Total revenue $ 101 $ 124 $ 170