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Properties - Gain (Loss) on Sale of Property Rights (Details) - USD ($) $ in Millions | 1 Months Ended | 3 Months Ended | 12 Months Ended | 21 Months Ended
--- | --- | --- | --- | ---
Apr. 30, 2021 | Dec. 31, 2022 | Jun. 30, 2022 | Mar. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2022
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |  |  |
Gains |  |  |  |  |  | $ 238 | $ 454 | $ 35 |
Proceeds and Advances from Property Dispositions |  |  |  |  |  | 246 | 529 | $ 56 |
Virginia Line Segments |  |  |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |  |  |
Gains | $ 349 | $ 2 | $ 122 | $ 20 |  | 144 | 349 |  | $ 493
Proceeds and Advances from Property Dispositions | $ 200 | $ 125 |  |  | $ 200 | $ 125 | $ 400 |  | $ 525

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- Definition Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585 + Details
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- Definition The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3179-108585 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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