Disclosures About Segments And Related Information ( Sales and Other Operating Revenues) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Disaggregation of Revenue [Line Items]
Total	$ 349,585	$ 344,582	$ 413,680
Sales and other operating revenue
Disaggregation of Revenue [Line Items]
Sales and other operating revenue	245,143	256,455	304,758
Revenue outside the scope of ASC 606	94,104	78,242	93,917
Total	$ 339,247	$ 334,697	$ 398,675