Segment and Geographic Area Information - Long-lived Assets by Geographic Region (Details) - USD ($) $ in Millions |
Dec. 31, 2020 |
Dec. 31, 2019 |
|---|---|---|
| Revenues from External Customers and Long-Lived Assets | ||
| Total long-lived assets | $ 5,248 | $ 2,962 |
| United States and Puerto Rico | ||
| Revenues from External Customers and Long-Lived Assets | ||
| Total long-lived assets | 3,354 | 2,026 |
| Europe | ||
| Revenues from External Customers and Long-Lived Assets | ||
| Total long-lived assets | 1,534 | 646 |
| All other | ||
| Revenues from External Customers and Long-Lived Assets | ||
| Total long-lived assets | $ 360 | $ 290 |