Income Taxes - Additional Information (Detail) - USD ($) $ in Millions |
3 Months Ended | |
|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2025 |
|
| Income Tax Disclosure [Abstract] | ||
| Discrete tax benefits related to vested stock based compensation awards | $ 57 | $ 46 |
| Net discrete tax benefit realized from changes in organizational tax structure | $ 149 | |