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Property, Plant and Equipment (Summary of Property and Equipment, net) (Details) - USD ($) $ in Millions		Mar. 31, 2025	Dec. 31, 2024
Property and equipment:
Proved		$ 54,814	$ 53,647
Unproved and properties under development		2,775	2,814
Total oil and gas		57,589	56,461
Less accumulated DD&A		(34,160)	(33,263)
Oil and gas property and equipment, net		23,429	23,198
Other property and equipment		2,510	2,671
Less accumulated DD&A		(857)	(858)
Other property and equipment, net	[1]	1,653	1,813
Total property and equipment, net		$ 25,082	$ 25,011
[1] $189 million and $178 million related to CDM in 2025 and 2024, respectively.

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

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

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

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Amount, before accumulated depreciation, depletion, amortization, and impairment, of oil and gas properties with proved reserve accounted for under successful efforts method.

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