Disclosures about Segments and Related Information (Sales and Other Operating Revenues) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Disaggregation of revenue [Line Items]
Revenues	$ 83,130	$ 83,083
Sales and other operating revenue
Disaggregation of revenue [Line Items]
Revenue from contracts with customers	56,931	58,419
Revenue outside the scope of ASC 606	24,127	21,992
Revenues	$ 81,058	$ 80,411