Income Taxes - Additional Information (Detail) - USD ($) $ in Millions |
6 Months Ended | |
|---|---|---|
Jun. 30, 2025 |
Jun. 30, 2024 |
|
| Income Tax Disclosure [Abstract] | ||
| Realization of capital losses from changes in organizational tax structure | $ 149 | |
| Discrete tax benefits related to vested stock based compensation awards | $ 50 | $ 37 |
| Discrete tax benefits | $ 137 | |