| **Stock-Based Compensation And Employee Benefit Plans - Summary of Stock-Based Compensation Expense (Details) - USD ($) $ in Millions** | 12 Months Ended |
|-----------------------------------------------------------------------------------------------------------------------------------------|-----------------|
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| **Share-based Compensation Arrangement by Share-based Payment Award [Line Items]**                                                      |            |   |   |
| Stock-based compensation expense                                                                                                        | $ 584           | $ 548 | $ 528 |
| Cost of revenue                                                                                                                         |            |   |   |
| **Share-based Compensation Arrangement by Share-based Payment Award [Line Items]**                                                      |            |   |   |
| Stock-based compensation expense                                                                                                        | 8               | 7 | 6 |
| Research and development                                                                                                                |            |   |   |
| **Share-based Compensation Arrangement by Share-based Payment Award [Line Items]**                                                      |            |   |   |
| Stock-based compensation expense                                                                                                        | 418             | 367 | 356 |
| Marketing and sales                                                                                                                     |            |   |   |
| **Share-based Compensation Arrangement by Share-based Payment Award [Line Items]**                                                      |            |   |   |
| Stock-based compensation expense                                                                                                        | 52              | 59 | 54 |
| General and administrative                                                                                                              |            |   |   |
| **Share-based Compensation Arrangement by Share-based Payment Award [Line Items]**                                                      |            |   |   |
| Stock-based compensation expense                                                                                                        | $ 106           | $ 115 | $ 112 |

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| - Definition
Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.
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| - Definition
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