v3.21.2
Transactions with Affiliated Funds - Fees Earned from Affiliated Funds (Detail) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Transactions With Affiliated Funds [Abstract]        
Fees earned from funds $ 1,046 $ 816 $ 2,647 $ 2,541