Sales and Other Operating Revenues - Revenue (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Revenue from contracts with customers	$ 12,621,000,000	$ 12,660,000,000	$ 27,100,000,000	$ 24,967,000,000
Consolidated sales and other operating revenues	14,004,000,000	13,620,000,000	30,521,000,000	27,468,000,000
Physical contracts meeting the definition of a derivative
Revenue from contracts outside the scope of ASC Topic 606	1,445,000,000	1,003,000,000	3,415,000,000	2,568,000,000
Crude oil
Revenue from contracts outside the scope of ASC Topic 606	48,000,000	53,000,000	157,000,000	53,000,000
Natural gas
Revenue from contracts outside the scope of ASC Topic 606	1,117,000,000	715,000,000	2,763,000,000	1,914,000,000
Other
Revenue from contracts outside the scope of ASC Topic 606	280,000,000	235,000,000	495,000,000	601,000,000
Financial derivative contracts
Revenue from contracts outside the scope of ASC Topic 606	(62,000,000)	(43,000,000)	6,000,000	(67,000,000)
Lower 48 \| Physical contracts meeting the definition of a derivative
Revenue from contracts outside the scope of ASC Topic 606	1,154,000,000	743,000,000	2,654,000,000	2,002,000,000
Canada \| Physical contracts meeting the definition of a derivative
Revenue from contracts outside the scope of ASC Topic 606	159,000,000	91,000,000	374,000,000	308,000,000
Europe, Middle East and North Africa \| Physical contracts meeting the definition of a derivative
Revenue from contracts outside the scope of ASC Topic 606	$ 132,000,000	$ 169,000,000	$ 387,000,000	$ 258,000,000