Transactions with Affiliated Funds - Fees Earned from Affiliated Funds (Detail) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Transactions With Affiliated Funds [Abstract] | |||
| Fees earned from funds | $ 5,997 | $ 5,399 | $ 4,726 |