Related Party Transactions - Additional Information (Detail) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
Dec. 31, 2025 |
|
| Related Party Transactions [Abstract] | |||||
| Administrative expenses | $ 4 | $ 5 | $ 7 | $ 10 | |
| Purchases from related party | 11 | 0 | 21 | 0 | |
| Services | 4 | $ 0 | 10 | $ 0 | |
| Other receivables | 31 | 31 | $ 33 | ||
| Other payables | 20 | 20 | 8 | ||
| Notes receivable | $ 65 | $ 65 | $ 64 | ||