Other Operating Gains, Net - Additional Information (Detail) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Disclosure of Other Operating Gains [Line Items] | ||||
| Other operating gains, net | $ 68 | $ 5 | $ 68 | $ 2 |