Inventories - Schedule of Lower of Cost or Market Reserve Activity (Details) $ in Millions |
6 Months Ended |
|---|---|
|
Jun. 30, 2026
USD ($)
| |
| Inventory Valuation Reserves [Roll Forward] | |
| Beginning balance | $ 706 |
| Lower of cost or market inventory valuation adjustments | (642) |
| Ending balance | 64 |
| Refining | |
| Inventory Valuation Reserves [Roll Forward] | |
| Beginning balance | 604 |
| Lower of cost or market inventory valuation adjustments | (604) |
| Ending balance | 0 |
| Renewables | |
| Inventory Valuation Reserves [Roll Forward] | |
| Beginning balance | 102 |
| Lower of cost or market inventory valuation adjustments | (38) |
| Ending balance | $ 64 |