Derivatives and Hedging - Summary of Fair Values of Derivatives Instruments Recognized in Consolidated Statements of Financial Condition (Detail) - Forward Foreign Currency Exchange Contracts [Member] - USD ($) $ in Millions |
Dec. 31, 2023 |
Dec. 31, 2022 |
|---|---|---|
| Other Assets Member | ||
| Derivatives Fair Value [Line Items] | ||
| Other assets, fair value | $ 19 | $ 1 |
| Other Liabilities Member | ||
| Derivatives Fair Value [Line Items] | ||
| Other assets, fair value | $ 6 | $ 19 |