Properties, Plant and Equipment (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Properties, Plant and Equipment
Gross Investment at Cost	$ 434,955	$ 345,933	$ 346,081
Net Investment	219,729	147,799	153,619
Additions at Cost	91,568	15,841	26,724
Depreciation, Depletion and Amortization	20,132	17,282	17,326
Dry hole expense related to prior years expenditures, net	33	98	110
Accretion expense	620	586	593
Impairment charges	133	500	2,180
PDC Energy, Inc.
Properties, Plant and Equipment
Net Investment	73,538		10,487
United States
Properties, Plant and Equipment
Gross Investment at Cost	192,378	161,079	153,537
Net Investment	90,528	68,177	65,902
Additions at Cost	32,920	11,163	22,342
Depreciation, Depletion and Amortization	11,067	8,981	8,910
International
Properties, Plant and Equipment
Gross Investment at Cost	242,577	184,854	192,544
Net Investment	129,201	79,622	87,717
Additions at Cost	58,648	4,678	4,382
Depreciation, Depletion and Amortization	9,065	8,301	8,416
Australia
Properties, Plant and Equipment
Net Investment	36,761	38,969	41,409
Guyana
Properties, Plant and Equipment
Net Investment	50,960
Operating Segments \| Upstream
Properties, Plant and Equipment
Gross Investment at Cost	388,487	300,840	301,951
Net Investment	200,819	129,070	134,951
Additions at Cost	90,192	14,017	24,538
Depreciation, Depletion and Amortization	18,445	15,497	15,775
Operating Segments \| Upstream \| United States
Properties, Plant and Equipment
Gross Investment at Cost	154,579	124,439	117,955
Net Investment	74,567	52,428	50,390
Additions at Cost	31,835	9,591	20,408
Depreciation, Depletion and Amortization	9,694	7,562	7,666
Operating Segments \| Upstream \| International
Properties, Plant and Equipment
Gross Investment at Cost	233,908	176,401	183,996
Net Investment	126,252	76,642	84,561
Additions at Cost	58,357	4,426	4,130
Depreciation, Depletion and Amortization	8,751	7,935	8,109
Operating Segments \| Downstream
Properties, Plant and Equipment
Gross Investment at Cost	41,907	40,667	39,593
Net Investment	16,601	16,613	16,643
Additions at Cost	895	1,462	1,860
Depreciation, Depletion and Amortization	1,404	1,451	1,232
Operating Segments \| Downstream \| United States
Properties, Plant and Equipment
Gross Investment at Cost	33,398	32,336	31,192
Net Investment	13,718	13,667	13,521
Additions at Cost	646	1,217	1,623
Depreciation, Depletion and Amortization	1,100	1,091	931
Operating Segments \| Downstream \| International
Properties, Plant and Equipment
Gross Investment at Cost	8,509	8,331	8,401
Net Investment	2,883	2,946	3,122
Additions at Cost	249	245	237
Depreciation, Depletion and Amortization	304	360	301
Segment Reporting, Reconciling Item
Properties, Plant and Equipment
Gross Investment at Cost	4,561	4,426	4,537
Net Investment	2,309	2,116	2,025
Additions at Cost	481	362	326
Depreciation, Depletion and Amortization	283	334	319
Segment Reporting, Reconciling Item \| United States
Properties, Plant and Equipment
Gross Investment at Cost	4,401	4,304	4,390
Net Investment	2,243	2,082	1,991
Additions at Cost	439	355	311
Depreciation, Depletion and Amortization	273	328	313
Segment Reporting, Reconciling Item \| International
Properties, Plant and Equipment
Gross Investment at Cost	160	122	147
Net Investment	66	34	34
Additions at Cost	42	7	15
Depreciation, Depletion and Amortization	$ 10	$ 6	$ 6

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Amount of acquisition of long-lived, physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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