Segment Information (Segment Adjusted EBITDA to Income (Loss) from Continuing Operations before Income Taxes) (Detail) - USD ($) $ in Millions |
3 Months Ended | |
|---|---|---|
Mar. 31, 2023 |
Mar. 31, 2022 |
|
| Segment Reporting Information [Line Items] | ||
| Refining planned turnaround costs | $ (357) | $ (145) |
| Litigation | 0 | 27 |
| Depreciation and amortization | (800) | (805) |
| Net interest and other financial costs | (154) | (262) |
| Income before income taxes | 3,907 | 1,454 |
| Operating Segments | ||
| Segment Reporting Information [Line Items] | ||
| Adjusted EBITDA | 5,383 | 2,777 |
| Operating Segments | Refining & Marketing | ||
| Segment Reporting Information [Line Items] | ||
| Adjusted EBITDA | 3,853 | 1,374 |
| Depreciation and amortization | (464) | (461) |
| Operating Segments | Midstream | ||
| Segment Reporting Information [Line Items] | ||
| Adjusted EBITDA | 1,530 | 1,403 |
| Depreciation and amortization | (317) | (331) |
| Corporate | ||
| Segment Reporting Information [Line Items] | ||
| Costs and expenses, excluding depreciation | (165) | (138) |
| Depreciation and amortization | $ (19) | $ (13) |