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Properties - Narrative (Details) | 12 Months Ended
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Dec. 31, 2024 USD ($) asset_class | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($)
Property, Plant and Equipment [Line Items] |  |  |
Number of depreciable asset classes | asset_class | 60 |  |
Gain or loss from retirement of properties |  | $ 0 | $ 0
Cost of property repairs and maintenance | $ 2,300,000,000 | $ 2,500,000,000 | $ 2,400,000,000
Railroad Transportation Equipment |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Term of depreciation studies (in years) | 3 years |  |
Railroad Transportation Track Assets |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Term of depreciation studies (in years) | 6 years |  |

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- Definition Information on the term of depreciation studies to determine the estimated service lives of depreciable assets. + References No definition available. + Details
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- Definition The aggregate costs of keeping the property in good condition but that do not appreciably prolong the life or increase the value of the property. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(2)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2 + Details
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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 -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-28 + 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 Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 7A -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478964/842-20-50-7A + Details
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