Derivatives Financial Instruments - Derivative Income Statement Location (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2024 |
Sep. 30, 2023 |
Sep. 30, 2024 |
Sep. 30, 2023 |
|
| Derivative [Line Items] | ||||
| Derivative, Gain (Loss) on Derivative, Net | $ 1 | $ (15) | $ (16) | $ (2) |
| Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] | Net income | Net income | Net income | Net income |
| Purchased product costs | ||||
| Derivative [Line Items] | ||||
| Realized gain (loss) | $ (3) | $ (3) | $ (10) | $ (8) |
| Unrealized Gain (Loss) on Derivatives and Commodity Contracts | 0 | (7) | (8) | 1 |
| Derivative, Gain (Loss) on Derivative, Net | (3) | (10) | (18) | (7) |
| Product Sales | ||||
| Derivative [Line Items] | ||||
| Realized gain (loss) | 1 | 3 | 1 | 3 |
| Unrealized Gain (Loss) on Derivatives and Commodity Contracts | 3 | (8) | 1 | 2 |
| Derivative, Gain (Loss) on Derivative, Net | $ 4 | $ (5) | $ 2 | $ 5 |