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, 2024 |
Jun. 30, 2023 |
Jun. 30, 2024 |
Jun. 30, 2023 |
|
| Derivative Instruments, Gain (Loss) [Line Items] | ||||
| Gain (loss) on derivatives | $ 6 | $ 42 | $ (31) | $ 37 |
| Seed Investment Member | ||||
| Derivative Instruments, Gain (Loss) [Line Items] | ||||
| Gain (loss) on derivatives | 6 | 21 | 49 | 76 |
| Deferred cash compensation plans [Member] | ||||
| Derivative Instruments, Gain (Loss) [Line Items] | ||||
| Gain (loss) on derivatives | $ 3 | $ 8 | $ 14 | $ 17 |