Organization and Summary of Significant Accounting Policies (Summary of Other Property and Equipment) (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Property, Plant and Equipment [Line Items]
Oil and gas property, full cost method, gross	$ 37,772	$ 35,763
Less: Accumulated depreciation and impairment	(394)	(354)
Total	172	173
Water facilities
Property, Plant and Equipment [Line Items]
Oil and gas property, full cost method, gross	252	238
Gathering systems
Property, Plant and Equipment [Line Items]
Oil and gas property, full cost method, gross	60	56
Technology infrastructure
Property, Plant and Equipment [Line Items]
Oil and gas property, full cost method, gross	$ 146	135
Drilling rigs and equipment
Property, Plant and Equipment [Line Items]
Long lived assets, useful life	3 years
Oil and gas property, full cost method, gross	$ 35	31
Land, buildings and leasehold improvements
Property, Plant and Equipment [Line Items]
Oil and gas property, full cost method, gross	16	16
Other
Property, Plant and Equipment [Line Items]
Oil and gas property, full cost method, gross	$ 57	$ 51
Minimum | Water facilities
Property, Plant and Equipment [Line Items]
Long lived assets, useful life	3 years
Minimum | Gathering systems
Property, Plant and Equipment [Line Items]
Long lived assets, useful life	15 years
Minimum | Technology infrastructure
Property, Plant and Equipment [Line Items]
Long lived assets, useful life	3 years
Minimum | Land, buildings and leasehold improvements
Property, Plant and Equipment [Line Items]
Long lived assets, useful life	5 years
Maximum | Water facilities
Property, Plant and Equipment [Line Items]
Long lived assets, useful life	10 years
Maximum | Gathering systems
Property, Plant and Equipment [Line Items]
Long lived assets, useful life	25 years
Maximum | Technology infrastructure
Property, Plant and Equipment [Line Items]
Long lived assets, useful life	10 years
Maximum | Land, buildings and leasehold improvements
Property, Plant and Equipment [Line Items]
Long lived assets, useful life	30 years