Equity Incentive Plans - Schedule of Stock-based Compensation Expense (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
|
| Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] | ||||
| Stock based compensation expense | $ 54 | $ 51 | $ 160 | $ 140 |
| Income Statement Location [Axis]: us-gaap:CostOfRevenue | ||||
| Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] | ||||
| Stock based compensation expense | 0 | 0 | ||
| Income Statement Location [Axis]: us-gaap:ResearchAndDevelopmentExpense | ||||
| Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] | ||||
| Stock based compensation expense | 43 | 41 | 126 | 114 |
| Income Statement Location [Axis]: us-gaap:SellingGeneralAndAdministrativeExpense | ||||
| Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] | ||||
| Stock based compensation expense | $ 11 | $ 10 | $ 34 | $ 26 |