Commitments and Contingencies - Commitments - Additional Information (Detail) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Commitment And Contingencies [Line Items] | |||
| Royalty expense | $ 740 | $ 719 | $ 543 |
| Maximum [Member] | |||
| Commitment And Contingencies [Line Items] | |||
| Milestone contingent expense | $ 104 | ||