Revenues and Segment Information, Assets (Details) - USD ($) $ in Millions	Sep. 30, 2025	Dec. 31, 2024
Total Assets by Reportable Segment
Reportable segment assets	$ 58,615	$ 60,143
Corporate and Eliminations [Member]
Total Assets by Reportable Segment
Reportable segment assets	6,510	6,189
Refining [Member]
Equity Method Investments (Textual):
Investments in nonconsolidated joint ventures	687	695
Refining [Member] \| Operating Segments [Member]
Total Assets by Reportable Segment
Reportable segment assets	45,010	46,729
Renewable Diesel [Member] \| Operating Segments [Member]
Total Assets by Reportable Segment
Reportable segment assets	5,600	5,680
Ethanol [Member] \| Operating Segments [Member]
Total Assets by Reportable Segment
Reportable segment assets	$ 1,495	$ 1,545

Amount of asset recognized for present right to economic benefit.

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+ Details

- Definition

This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

+ References + Details