v3.21.2
Transactions with Affiliated Funds - Fees Earned from Affiliated Funds (Detail) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Transactions With Affiliated Funds [Abstract]        
Fees earned from funds $ 783 $ 804 $ 1,601 $ 1,725