Stock-Based Compensation - Stock-based compensation expenses (Details) - USD ($) $ in Millions |
3 Months Ended | |
|---|---|---|
Mar. 31, 2019 |
Mar. 31, 2018 |
|
| Stock-Based Compensation | Ìý | Ìý |
| Stock-based compensation | $ 65 | $ 46 |
| Programming and content | Ìý | Ìý |
| Stock-Based Compensation | Ìý | Ìý |
| Stock-based compensation | 7 | 8 |
| Customer service and billing | Ìý | Ìý |
| Stock-Based Compensation | Ìý | Ìý |
| Stock-based compensation | 1 | 1 |
| Other | Ìý | Ìý |
| Stock-Based Compensation | Ìý | Ìý |
| Stock-based compensation | 1 | 1 |
| Other operating expense | Ìý | Ìý |
| Stock-Based Compensation | Ìý | Ìý |
| Stock-based compensation | 9 | 4 |
| Selling, general and administrative | Ìý | Ìý |