Property, Plant and Equipment (Summary of Property and Equipment, net) (Details) - USD ($) $ in Millions	Sep. 30, 2025	Dec. 31, 2024
Property and equipment:
Proved	$ 56,594	$ 53,647
Unproved and properties under development	2,899	2,814
Total oil and gas	59,493	56,461
Less accumulated DD&A	(35,902)	(33,263)
Oil and gas property and equipment, net	23,591	23,198
Other property and equipment	2,595	2,671
Less accumulated DD&A	(897)	(858)
Other property and equipment, net	1,698	1,813
Total property and equipment, net	$ 25,289	$ 25,011

Amount of accumulated depreciation, depletion, and amortization of oil and gas property accounted for under successful efforts method.

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