Related Party Transactions (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2020 |
Jun. 30, 2019 |
Jun. 30, 2020 |
Jun. 30, 2019 |
|
| Significant transactions with related parties | ||||
| Related Party Revenue | $ 21 | $ 26 | $ 38 | $ 47 |
| Related Party Purchases | 0 | 17 | 0 | 38 |
| Operating expenses and selling, general and administrative expenses | 12 | 14 | 27 | 28 |
| Net interest income | $ (2) | $ (3) | $ (4) | $ (7) |