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Organization and Basis of Consolidation and Presentation (Details) shares in Millions, $ in Millions | 6 Months Ended |
--- | --- | ---
Jun. 30, 2026 USD ($) segment shares | Dec. 31, 2025 USD ($)
Organization Consolidation and Presentation of Financial Statements [Line Items] |  |
Operating segments number | segment | 2 |
Deferred tax asset | $ | $ 1,083 | $ 1,136
AAP |  |
Organization Consolidation and Presentation of Financial Statements [Line Items] |  |
Ownership interest in subsidiary (as a percent) | 85.00% |
Consolidated subsidiary, ownership interest (in shares) | 197.9 |
Plains All American G P L L C |  |
Organization Consolidation and Presentation of Financial Statements [Line Items] |  |
Ownership interest in subsidiary (as a percent) | 100.00% |
PAA | AAP |  |
Organization Consolidation and Presentation of Financial Statements [Line Items] |  |
Ownership interest in subsidiary (as a percent) | 31.00% |
Consolidated subsidiary, ownership interest (in shares) | 233.0 |

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- Definition Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, with jurisdictional netting. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482525/740-10-45-4 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482525/740-10-45-6 + Details
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- Definition Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 49 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482785/280-10-55-49 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 18 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-18 + Details
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