Related Party Transactions (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2020 |
Sep. 30, 2019 |
Sep. 30, 2020 |
Sep. 30, 2019 |
|
| Significant transactions with related parties | ||||
| Related Party Revenue | $ 21 | $ 23 | $ 59 | $ 70 |
| Related Party Purchases | 0 | 0 | 0 | 38 |
| Operating expenses and selling, general and administrative expenses | 16 | 19 | 43 | 47 |
| Net interest income | $ (1) | $ (3) | $ (5) | $ (10) |