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Transactions with Affiliated Funds - Fees Receivable from Affiliated Funds and the Aggregate Carrying Value of the Firm's Interests in these Funds (Detail) - USD ($)
$ in Millions
Sep. 30, 2025
Dec. 31, 2024
Transactions With Affiliated Funds [Abstract]    
Fees receivable from funds $ 1,593 $ 1,589
Aggregate carrying value of interests in funds $ 3,599 $ 4,079