Disclosures About Segments And Related Information (Schedule Of Geographic Sales And Other Operating Revenue) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Segment Reporting Revenue Reconciling Item [Line Items]
Total	$ 349,585	$ 344,582	$ 413,680
Sales and other operating revenue
Segment Reporting Revenue Reconciling Item [Line Items]
Total	339,247	334,697	398,675
United States | Sales and other operating revenue
Segment Reporting Revenue Reconciling Item [Line Items]
Total	138,657	127,374	149,225
Non-U.S. | Sales and other operating revenue
Segment Reporting Revenue Reconciling Item [Line Items]
Total	200,590	207,323	249,450
Canada | Sales and other operating revenue
Segment Reporting Revenue Reconciling Item [Line Items]
Total	29,746	28,994	32,970
United Kingdom | Sales and other operating revenue
Segment Reporting Revenue Reconciling Item [Line Items]
Total	20,580	23,372	33,988
Singapore | Sales and other operating revenue
Segment Reporting Revenue Reconciling Item [Line Items]
Total	15,724	15,331	19,029
France | Sales and other operating revenue
Segment Reporting Revenue Reconciling Item [Line Items]
Total	$ 13,743	$ 14,803	$ 17,727