Derivatives and Hedging - Summary of Realized and Unrealized Gains (Losses) Recognized in Condensed Consolidated Statements of Income on Derivative Instruments (Parenthetical) (Detail) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2025 |
Jun. 30, 2024 |
Jun. 30, 2025 |
Jun. 30, 2024 |
|
| Derivative Instruments, Gain (Loss) [Line Items] | ||||
| Gain (loss) on derivatives | $ (45) | $ 6 | $ 6 | $ (31) |
| Seed Investment [Member] | ||||
| Derivative Instruments, Gain (Loss) [Line Items] | ||||
| Gain (loss) on derivatives | (125) | (6) | (115) | (49) |
| Deferred Cash Compensation Plans [Member] | ||||
| Derivative Instruments, Gain (Loss) [Line Items] | ||||
| Gain (loss) on derivatives | $ 19 | $ 3 | $ 13 | $ 14 |